Date   

Re: DXing Drought Concludes

ferrite61 <dxrx@...>
 

Its been a lot tougher since the hurricanes of 2008. I had what I considered to be a reliable listing of network/location prior. It seems the networks are now more dynamic, and the locations differ depending upon state of equipment. So now, I log them all as Havana at 10kW. If i catch a network ID I report it. There are some changes to the old listings on my homebrew DX log for sure.

Paul S. in CT

--- In ultralightdx@yahoogroups.com, "Kirk" <kirk74601@...> wrote:



--- In ultralightdx@yahoogroups.com, "ferrite61" <dxrx@> wrote:

Some further research yields the following:
970 CMHD Camaguay 10kW
970 CMAI Consolacion 1kW
970 XEMH Merida (NW Yucatan Pen.) 5kW

Best three found. The Mexican station J.I.C.

Paul S. in CT
Thanks, Paul. I have to be honest with the group, Cuba confuses the hell out of me. When there's listings of more than one Cuban sta on a given freq, how do we know which one to count, if any?? (Especially confusing when the stations are both listed running the same power!) I've had a long day, I better tackle this issue when I'm better rested, ha ha.

Tnx again, Paul!!

Kirk Allen
Ponca City, OK


Re: An even More Monstrous ferrite on the way

Rik
 

Raph - I don't know why Stormwise made these antennas to need nearly 1000 pF to tune the whole AM BCB, but that is what they say.

I am using 2 sections [of about 384 pF each] on a cap from Crystal Radio Supply, which look like identical construction to the ones Stormwise sells, and it tuned about 60 % of the band.

If I get time, I may play with winding over the top of the PVC with enough turns to tune with a single section cap. I have both the vernier and non-vernier models to experiment with. I am glad to hear the excellent results you are having, so I will listen for ideas.
Thanks for experimenting and reporting your results. - FARMERIK

--- In ultralightdx@yahoogroups.com, "Pollock,Raphael E" <rpollock@...> wrote:

Dear Farmerik: I am very disappointed at this result, as I am certain you are as well. The Stormwise source ferrite rods antennas that I have wound used 125 mu rather than 800 mu ferrite, although that should not explain the modest performance you are experiencing. There are other possible confounding factors.My primary pick up coils are made of 660/46 Litz wire. I do not know what type of wire is used in the Stormwise AM ferrite. Finally, my coils are placed in the center of the rod and are tight wound; I am not certain what is the coil situation in the Stormwise AM ferrite. More knowledgeable people like Kevin, Steve, or Gary might have better explanations.

I can tell you that in direct comparison tests versus my SAT, my CCRane twin coil, and my homebrew 3' x 3' air core box loop both my 19" 125 mu and 27" 125 mu knock the socks off the other antennas. The tuning is extremely sharp; without the verniers they would be darn near impossible to peak. Using my Sony 2010 with the RF gain set at mid point (slider switch on the side) and tuning to stations that at noon here in Houston will light up 1 of 10 LEDS, the SAT, when peaked, will typically light up 3 of 10 LEDS, the twin coil antenna comes in at 6-7 of 10, and either of my ferrites will light up 9-10 of the 10 LEDs when peaked. This extra gain has made a difference in reception of daytime long distance MW stations so it is not simply amplifying the noise floor of the receiver, as it were.

I wonder if the 800 pfd variable capacitor is the problem? Perhaps a 365 pfd variable capacitor, which is more what is typically used to cover the MW band (although I am no expert!), would give you sharper peaking when you tune the MW band?

Raph



________________________________
From: ultralightdx@yahoogroups.com [ultralightdx@yahoogroups.com] On Behalf Of farmerik [farmerik@...]
Sent: Thursday, February 10, 2011 12:54 PM
To: ultralightdx@yahoogroups.com
Subject: [ultralightdx] Re: An even More Monstrous ferrite on the way



As far as the AM ferrite antenna I bought from Stormwise, it is not a big improvement on AM over a SAT or TERK aircores or Gary's 8 inch ferrite for the PL-360. It does not tune sharply either, so there is no need to use a cap with a vernier. Even the two section cap of nearly 800 pF is less touchy than resonating the TERK or SAT.
I hope you guys who wind your own coils on the Stormwise ferrite can get better results. It is easier to pack than a large air core though for mountain top picnics. It is pretty rugged too, inside the PVC pipe with the caps on both ends glued on. - FARMERIK

--- In ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com>, "dhsatyadhana" <dhsatyadhana@> wrote:

Hi Raph:

The 800 mu permeability is still fine for resonating on MW, as far as I can tell. I have been comparing the 800 mu stick to my Q Stick, and the signal gain is substantially leap better on the Monster. The guy at Stormwise mentioned that to get max Q for the upper part of the band, the windings should be spaced out along the ferrite as much as possible: I will likely convert the "little" 18-inch ferrite to MW-only, in which case I can do just that. Both of our MW coils are close-spaced, which minimizes the amount of Litz wire one needs, but apparently Q suffers. So, you might want to try spacing out the coils on yours, using a longer length of Litz?

I am thinking that if I were to take it on a trip and try to carry it onto a plane, I would bring a copy of the construction article to show them what it is. I would have it in a mailing tube, and I would go to the post office at the airport and mail it back to myself rather than have them confiscate it. If I were to check it in a bag, I might use a stand-alone shipping tube of some sort, perhaps one made for a fishing rod, again with a copy of the construction article in there should they decide to check it out. Using a hard-sided suitcase, with the antenna put in diagonally, might also work.


Kevin


--- In ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com>, "Pollock,Raphael E" <rpollock@> wrote:

Hi Kevin!

Glad to see you becoming even more addicted to monster ferrites as well! I am wondering how well the 800 mu ferrites will work on MW as compared to the 125 mu--I don't know enough radio electronics to answer my own question. I also wonder about transporting the completed ferrite rod antennas. There is too much effort to make one of these things only to have it confiscated by Homeland Security at the airport, thinking that it might be a pipe bomb or some damn thing. On the other hand, I wouldn't want to take a chance of ferrite breakage by putting it in checked luggage...

Your thoughts, my friend?

Raph

From: ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com> [mailto:ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com>] On Behalf Of dhsatyadhana
Sent: Wednesday, February 09, 2011 5:39 PM
To: ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com>
Subject: [ultralightdx] An even More Monstrous ferrite on the way



Hi all:

I just got off the phone with Stormwise, intending to order another 18" "Monster" ferrite, since I have a few other ideas about what to do with them. As it turns out, they are available in 2" increments, so I special-ordered a 24" inch model of the 800u permeability type (Model VFR24J). I think they're all made to order, so it's just a matter of him telling the fabricator how long to make it.

He wasn't exactly sure of the price, likely $10 or so more than the 18" (which runs $33.75), but he'll let me know as soon as he gets a firm price on it. So, in about a week I should have an even larger Monster ferrite on hand, which I will likely devote to longwave with regeneration.

Looks like I'm going to have to find a longer backpack for my morning commute DXpedition gear...

Kevin S
Bainbridge Island, WA


Re: sunset-skip new adds Thursday, Febr. 10, 2011 in Akron

robert ross
 

On 10/02/2011 7:47 PM, Tim wrote:
 

About a half-hour of listening snared 2 new URL loggings on my
Sony SRF-T615 (totally stock):

570 CKGL/Kitchener, Ontario @ 6:45pm EST with "5-70 News". First time ever heard with ANY radio!

880 KLRG/Sheridan, Arkansas (Little Rock)@ 7:01pm w/CNN network news, and local spot advertising "buy an hour on KLRG and reach 6 states with 50,000 watts". That buy better be in the daytime, as they go to 230w at night. LOL. Again, new...never heard ever on any radio.

I don't do too much AM DXing...but 99% of it is on my T-615 or SRF-59. Love both radios.

Due to the strange sunspot cycle #24...the AM continues to be a good one for DXers.

73's,

Tim, KD8GZ
near Akron, Ohio



Tim....You did better than me tonight!!! I got absolutely NOTHING NEW @ Sunset!!!! I heard some decent RELOGS...but I got shut out on the New Ones!!!

Glad to see you are enjoying the SONY T-615........Stick with it...and you're gonna hear a lot of Cool Stuff!! It will grow on you!!

Keep having Fun with ULR!!!!

73....ROB VA3SW

Robert S. Ross
London, Ontario CANADA


Re: A Cold but Productive DX Commute - 3 New Beacons

Gary DeBock
 

Hi Peter,

The Ultralight General Awards Program information is contained in a
file under Section 2 (General Information) of the Ultralightdx File
Section, linked at
http://f1.grp.yahoofs.com/v1/AHxUTdVkNIjF_FdlNlFdmCPrZn4_GGYi6P4jl0T3FeXwa1xU10BSFYwx1lspEg0aeQHaGoQSHQMyNNwp3QWlw4sQLLlc0Go/2%20General%20Information/Ultralight%20General%20Awards%20Program%20January%2015%2C%202010.pdf
.

These rules are for the MW-DXing Awards Program, but Rob Ross and I
have already decided to offer the same award categories for the new
Ultralight Longwave DXing Awards Program, soon to be announced. Please
feel free to participate in either program!

73, Gary DeBock (in Puyallup, WA, UA)

-----Original Message-----
From: Peter Laws <plaws0@gmail.com>
To: ultralightdx <ultralightdx@yahoogroups.com>
Sent: Thu, Feb 10, 2011 11:28 am
Subject: Re: [ultralightdx] A Cold but Productive DX Commute - 3 New Beacons

 
On Thu, Feb 10, 2011 at 11:21, <D1028Gary@aol.com> wrote:

For those interested in either LWBC or NDB-DXing (or both), Rob
Ross
and I have already agreed to offer Ultralight Longwave-DXing
awards as
soion as possible, which will be in exactly the same categories as
the
MW-DXing awards (states, provinces, countries, hundreds of stations
heard, etc.). I think that Kevin and I both know how meaningful a
100
NDB Heard Award would be! Rob and I are discussing the final
artwork
for the Longwave-DXing Award Certificates, which will be offered to
Ultralight DXers anywhere in the world. Get your loggings ready!
Where are the award rules listed? I admit, one of the things that
attracted me to this hobby was the awards, so I've seen the page ...
but where? :-)

Peter
N5UWY
DXCC Mixed/Phone/15 m
WAS RTTY/Phone
WAC Phone
:-)

--
Peter Laws | N5UWY | plaws plaws net | Travel by Train!


sunset-skip new adds Thursday, Febr. 10, 2011 in Akron

Tim Davisson
 

About a half-hour of listening snared 2 new URL loggings on my
Sony SRF-T615 (totally stock):

570 CKGL/Kitchener, Ontario @ 6:45pm EST with "5-70 News". First time ever heard with ANY radio!

880 KLRG/Sheridan, Arkansas (Little Rock)@ 7:01pm w/CNN network news, and local spot advertising "buy an hour on KLRG and reach 6 states with 50,000 watts". That buy better be in the daytime, as they go to 230w at night. LOL. Again, new...never heard ever on any radio.

I don't do too much AM DXing...but 99% of it is on my T-615 or SRF-59. Love both radios.

Due to the strange sunspot cycle #24...the AM continues to be a good one for DXers.

73's,

Tim, KD8GZ
near Akron, Ohio


Re: An even More Monstrous ferrite on the way

Pollock,Raphael E <rpollock@...>
 

Hi Kevin!

 

I will await the results of your 18” MW only with interest and bated breath. I am not sure how the Stormwise antenna is made, but I’ll bet dimes-to-doughnuts that they don’t use 660/44 Litz. Incidentially, do you have a good source for the 660/44 Litz? I bought mine from Dave Schmarder last year when he was selling off his last bits and pieces of crystal radio supplies…

 

Raph

 

From: ultralightdx@... [mailto:ultralightdx@...] On Behalf Of dhsatyadhana
Sent: Thursday, February 10, 2011 2:55 PM
To: ultralightdx@...
Subject: [ultralightdx] Re: An even More Monstrous ferrite on the way

 

 

I've only been using the dual-coil version of the 18" 800 mu stick for LW, which really works well, and really haven't evaluated MW. However, a quick test of my dual-coil ferrite shows similar results compared to Farmerik: the MW coil is about comparable to a Terk loop :-(

I have it wound with 175/46 Litz and tuned with a >500 Q variable capacitor, so that likely isn't the problem. The MW coil is towards one end, which probably doesn't help matters (the LW coil takes up over half of the length of the ferrite). The LW coil's presence will also drag tuning sharpness down somewhat - I've seen that happen on box loops. The MW coil does tune fairly sharply, although not as sharply as Raph describes for his.

When the 24" ferrite arrives, I plan on converting the 18" ferrite to MW only, placing the coil in the middle of the ferrite, and I now have some 660/44 Litz, so perhaps then we'll see how it works.

Kevin

--- In ultralightdx@..., "Pollock,Raphael E" wrote:
>
> Dear Farmerik: I am very disappointed at this result, as I am certain you are as well. The Stormwise source ferrite rods antennas that I have wound used 125 mu rather than 800 mu ferrite, although that should not explain the modest performance you are experiencing. There are other possible confounding factors.My primary pick up coils are made of 660/46 Litz wire. I do not know what type of wire is used in the Stormwise AM ferrite. Finally, my coils are placed in the center of the rod and are tight wound; I am not certain what is the coil situation in the Stormwise AM ferrite. More knowledgeable people like Kevin, Steve, or Gary might have better explanations.
>
> I can tell you that in direct comparison tests versus my SAT, my CCRane twin coil, and my homebrew 3' x 3' air core box loop both my 19" 125 mu and 27" 125 mu knock the socks off the other antennas. The tuning is extremely sharp; without the verniers they would be darn near impossible to peak. Using my Sony 2010 with the RF gain set at mid point (slider switch on the side) and tuning to stations that at noon here in Houston will light up 1 of 10 LEDS, the SAT, when peaked, will typically light up 3 of 10 LEDS, the twin coil antenna comes in at 6-7 of 10, and either of my ferrites will light up 9-10 of the 10 LEDs when peaked. This extra gain has made a difference in reception of daytime long distance MW stations so it is not simply amplifying the noise floor of the receiver, as it were.
>
> I wonder if the 800 pfd variable capacitor is the problem? Perhaps a 365 pfd variable capacitor, which is more what is typically used to cover the MW band (although I am no expert!), would give you sharper peaking when you tune the MW band?
>
> Raph
>
>
>
> ________________________________
> From: ultralightdx@... [ultralightdx@...] On Behalf Of farmerik [farmerik@...]
> Sent: Thursday, February 10, 2011 12:54 PM
> To: ultralightdx@...
> Subject: [ultralightdx] Re: An even More Monstrous ferrite on the way
>
>
>
> As far as the AM ferrite antenna I bought from Stormwise, it is not a big improvement on AM over a SAT or TERK aircores or Gary's 8 inch ferrite for the PL-360. It does not tune sharply either, so there is no need to use a cap with a vernier. Even the two section cap of nearly 800 pF is less touchy than resonating the TERK or SAT.
> I hope you guys who wind your own coils on the Stormwise ferrite can get better results. It is easier to pack than a large air core though for mountain top picnics. It is pretty rugged too, inside the PVC pipe with the caps on both ends glued on. - FARMERIK
>
> --- In ultralightdx@..., "dhsatyadhana" wrote:
> >
> > Hi Raph:
> >
> > The 800 mu permeability is still fine for resonating on MW, as far as I can tell. I have been comparing the 800 mu stick to my Q Stick, and the signal gain is substantially leap better on the Monster. The guy at Stormwise mentioned that to get max Q for the upper part of the band, the windings should be spaced out along the ferrite as much as possible: I will likely convert the "little" 18-inch ferrite to MW-only, in which case I can do just that. Both of our MW coils are close-spaced, which minimizes the amount of Litz wire one needs, but apparently Q suffers. So, you might want to try spacing out the coils on yours, using a longer length of Litz?
> >
> > I am thinking that if I were to take it on a trip and try to carry it onto a plane, I would bring a copy of the construction article to show them what it is. I would have it in a mailing tube, and I would go to the post office at the airport and mail it back to myself rather than have them confiscate it. If I were to check it in a bag, I might use a stand-alone shipping tube of some sort, perhaps one made for a fishing rod, again with a copy of the construction article in there should they decide to check it out. Using a hard-sided suitcase, with the antenna put in diagonally, might also work.
> >
> >
> > Kevin
> >
> >
> > --- In ultralightdx@..., "Pollock,Raphael E" wrote:
> > >
> > > Hi Kevin!
> > >
> > > Glad to see you becoming even more addicted to monster ferrites as well! I am wondering how well the 800 mu ferrites will work on MW as compared to the 125 mu--I don't know enough radio electronics to answer my own question. I also wonder about transporting the completed ferrite rod antennas. There is too much effort to make one of these things only to have it confiscated by Homeland Security at the airport, thinking that it might be a pipe bomb or some damn thing. On the other hand, I wouldn't want to take a chance of ferrite breakage by putting it in checked luggage...
> > >
> > > Your thoughts, my friend?
> > >
> > > Raph
> > >
> > > From: ultralightdx@... [mailto:ultralightdx@...] On Behalf Of dhsatyadhana
> > > Sent: Wednesday, February 09, 2011 5:39 PM
> > > To: ultralightdx@...
> > > Subject: [ultralightdx] An even More Monstrous ferrite on the way
> > >
> > >
> > >
> > > Hi all:
> > >
> > > I just got off the phone with Stormwise, intending to order another 18" "Monster" ferrite, since I have a few other ideas about what to do with them. As it turns out, they are available in 2" increments, so I special-ordered a 24" inch model of the 800u permeability type (Model VFR24J). I think they're all made to order, so it's just a matter of him telling the fabricator how long to make it.
> > >
> > > He wasn't exactly sure of the price, likely $10 or so more than the 18" (which runs $33.75), but he'll let me know as soon as he gets a firm price on it. So, in about a week I should have an even larger Monster ferrite on hand, which I will likely devote to longwave with regeneration.
> > >
> > > Looks like I'm going to have to find a longer backpack for my morning commute DXpedition gear...
> > >
> > > Kevin S
> > > Bainbridge Island, WA
> > >
> >
>


Re: An even More Monstrous ferrite on the way

Kevin Schanilec
 

I've only been using the dual-coil version of the 18" 800 mu stick for LW, which really works well, and really haven't evaluated MW. However, a quick test of my dual-coil ferrite shows similar results compared to Farmerik: the MW coil is about comparable to a Terk loop :-(

I have it wound with 175/46 Litz and tuned with a >500 Q variable capacitor, so that likely isn't the problem. The MW coil is towards one end, which probably doesn't help matters (the LW coil takes up over half of the length of the ferrite). The LW coil's presence will also drag tuning sharpness down somewhat - I've seen that happen on box loops. The MW coil does tune fairly sharply, although not as sharply as Raph describes for his.

When the 24" ferrite arrives, I plan on converting the 18" ferrite to MW only, placing the coil in the middle of the ferrite, and I now have some 660/44 Litz, so perhaps then we'll see how it works.

Kevin

--- In ultralightdx@yahoogroups.com, "Pollock,Raphael E" <rpollock@...> wrote:

Dear Farmerik: I am very disappointed at this result, as I am certain you are as well. The Stormwise source ferrite rods antennas that I have wound used 125 mu rather than 800 mu ferrite, although that should not explain the modest performance you are experiencing. There are other possible confounding factors.My primary pick up coils are made of 660/46 Litz wire. I do not know what type of wire is used in the Stormwise AM ferrite. Finally, my coils are placed in the center of the rod and are tight wound; I am not certain what is the coil situation in the Stormwise AM ferrite. More knowledgeable people like Kevin, Steve, or Gary might have better explanations.

I can tell you that in direct comparison tests versus my SAT, my CCRane twin coil, and my homebrew 3' x 3' air core box loop both my 19" 125 mu and 27" 125 mu knock the socks off the other antennas. The tuning is extremely sharp; without the verniers they would be darn near impossible to peak. Using my Sony 2010 with the RF gain set at mid point (slider switch on the side) and tuning to stations that at noon here in Houston will light up 1 of 10 LEDS, the SAT, when peaked, will typically light up 3 of 10 LEDS, the twin coil antenna comes in at 6-7 of 10, and either of my ferrites will light up 9-10 of the 10 LEDs when peaked. This extra gain has made a difference in reception of daytime long distance MW stations so it is not simply amplifying the noise floor of the receiver, as it were.

I wonder if the 800 pfd variable capacitor is the problem? Perhaps a 365 pfd variable capacitor, which is more what is typically used to cover the MW band (although I am no expert!), would give you sharper peaking when you tune the MW band?

Raph



________________________________
From: ultralightdx@yahoogroups.com [ultralightdx@yahoogroups.com] On Behalf Of farmerik [farmerik@...]
Sent: Thursday, February 10, 2011 12:54 PM
To: ultralightdx@yahoogroups.com
Subject: [ultralightdx] Re: An even More Monstrous ferrite on the way



As far as the AM ferrite antenna I bought from Stormwise, it is not a big improvement on AM over a SAT or TERK aircores or Gary's 8 inch ferrite for the PL-360. It does not tune sharply either, so there is no need to use a cap with a vernier. Even the two section cap of nearly 800 pF is less touchy than resonating the TERK or SAT.
I hope you guys who wind your own coils on the Stormwise ferrite can get better results. It is easier to pack than a large air core though for mountain top picnics. It is pretty rugged too, inside the PVC pipe with the caps on both ends glued on. - FARMERIK

--- In ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com>, "dhsatyadhana" <dhsatyadhana@> wrote:

Hi Raph:

The 800 mu permeability is still fine for resonating on MW, as far as I can tell. I have been comparing the 800 mu stick to my Q Stick, and the signal gain is substantially leap better on the Monster. The guy at Stormwise mentioned that to get max Q for the upper part of the band, the windings should be spaced out along the ferrite as much as possible: I will likely convert the "little" 18-inch ferrite to MW-only, in which case I can do just that. Both of our MW coils are close-spaced, which minimizes the amount of Litz wire one needs, but apparently Q suffers. So, you might want to try spacing out the coils on yours, using a longer length of Litz?

I am thinking that if I were to take it on a trip and try to carry it onto a plane, I would bring a copy of the construction article to show them what it is. I would have it in a mailing tube, and I would go to the post office at the airport and mail it back to myself rather than have them confiscate it. If I were to check it in a bag, I might use a stand-alone shipping tube of some sort, perhaps one made for a fishing rod, again with a copy of the construction article in there should they decide to check it out. Using a hard-sided suitcase, with the antenna put in diagonally, might also work.


Kevin


--- In ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com>, "Pollock,Raphael E" <rpollock@> wrote:

Hi Kevin!

Glad to see you becoming even more addicted to monster ferrites as well! I am wondering how well the 800 mu ferrites will work on MW as compared to the 125 mu--I don't know enough radio electronics to answer my own question. I also wonder about transporting the completed ferrite rod antennas. There is too much effort to make one of these things only to have it confiscated by Homeland Security at the airport, thinking that it might be a pipe bomb or some damn thing. On the other hand, I wouldn't want to take a chance of ferrite breakage by putting it in checked luggage...

Your thoughts, my friend?

Raph

From: ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com> [mailto:ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com>] On Behalf Of dhsatyadhana
Sent: Wednesday, February 09, 2011 5:39 PM
To: ultralightdx@yahoogroups.com<mailto:ultralightdx%40yahoogroups.com>
Subject: [ultralightdx] An even More Monstrous ferrite on the way



Hi all:

I just got off the phone with Stormwise, intending to order another 18" "Monster" ferrite, since I have a few other ideas about what to do with them. As it turns out, they are available in 2" increments, so I special-ordered a 24" inch model of the 800u permeability type (Model VFR24J). I think they're all made to order, so it's just a matter of him telling the fabricator how long to make it.

He wasn't exactly sure of the price, likely $10 or so more than the 18" (which runs $33.75), but he'll let me know as soon as he gets a firm price on it. So, in about a week I should have an even larger Monster ferrite on hand, which I will likely devote to longwave with regeneration.

Looks like I'm going to have to find a longer backpack for my morning commute DXpedition gear...

Kevin S
Bainbridge Island, WA


Re: A Cold but Productive DX Commute - 3 New Beacons

Peter Laws
 

On Thu, Feb 10, 2011 at 11:21, <D1028Gary@aol.com> wrote:

For those interested in either LWBC or NDB-DXing (or both), Rob Ross
and I have already agreed to offer Ultralight Longwave-DXing awards as
soion as possible, which will be in exactly the same categories as the
MW-DXing awards (states, provinces, countries, hundreds of stations
heard, etc.). I think that Kevin and I both know how meaningful a 100
NDB Heard Award would be! Rob and I are discussing the final artwork
for the Longwave-DXing Award Certificates, which will be offered to
Ultralight DXers anywhere in the world. Get your loggings ready!

Where are the award rules listed? I admit, one of the things that
attracted me to this hobby was the awards, so I've seen the page ...
but where? :-)

Peter
N5UWY
DXCC Mixed/Phone/15 m
WAS RTTY/Phone
WAC Phone
:-)

--
Peter Laws | N5UWY | plaws plaws net | Travel by Train!


Re: An even More Monstrous ferrite on the way

Pollock,Raphael E <rpollock@...>
 

Dear Farmerik: I am very disappointed at this result, as I am certain you are as well. The Stormwise source ferrite rods antennas that I have wound used 125 mu rather than 800 mu ferrite, although that should not explain the modest performance you are experiencing. There are other possible confounding factors.My primary pick up coils are made of 660/46 Litz wire. I do not know what type of wire is used in the Stormwise AM ferrite. Finally, my coils are placed in the center of the rod and are tight wound; I am not certain what is the coil situation in the Stormwise AM ferrite. More knowledgeable people like Kevin, Steve, or Gary might have better explanations.
 
I can tell you that in direct comparison tests versus my SAT, my CCRane twin coil, and my homebrew 3' x 3' air core box loop both my 19" 125 mu and 27" 125 mu knock the socks off the other antennas. The tuning is extremely sharp; without the verniers they would be darn near impossible to peak. Using my Sony 2010 with the RF gain set at mid point (slider switch on the side) and tuning to stations that at noon here in Houston will light up 1 of 10 LEDS, the SAT, when peaked, will typically light up 3 of 10 LEDS, the twin coil antenna comes in at 6-7 of 10, and either of my ferrites will light up 9-10 of the 10 LEDs when peaked. This extra gain has made a difference in reception of daytime long distance MW stations so it is not simply amplifying the noise floor of the receiver, as it were.
 
I wonder if the 800 pfd variable capacitor is the problem? Perhaps a 365 pfd variable capacitor, which is more what is typically used to cover the MW band (although I am no expert!), would give you sharper peaking when you tune the MW band?
 
Raph
 
 
 


From: ultralightdx@... [ultralightdx@...] On Behalf Of farmerik [farmerik@...]
Sent: Thursday, February 10, 2011 12:54 PM
To: ultralightdx@...
Subject: [ultralightdx] Re: An even More Monstrous ferrite on the way

 

As far as the AM ferrite antenna I bought from Stormwise, it is not a big improvement on AM over a SAT or TERK aircores or Gary's 8 inch ferrite for the PL-360. It does not tune sharply either, so there is no need to use a cap with a vernier. Even the two section cap of nearly 800 pF is less touchy than resonating the TERK or SAT.
I hope you guys who wind your own coils on the Stormwise ferrite can get better results. It is easier to pack than a large air core though for mountain top picnics. It is pretty rugged too, inside the PVC pipe with the caps on both ends glued on. - FARMERIK

--- In ultralightdx@..., "dhsatyadhana" wrote:
>
> Hi Raph:
>
> The 800 mu permeability is still fine for resonating on MW, as far as I can tell. I have been comparing the 800 mu stick to my Q Stick, and the signal gain is substantially leap better on the Monster. The guy at Stormwise mentioned that to get max Q for the upper part of the band, the windings should be spaced out along the ferrite as much as possible: I will likely convert the "little" 18-inch ferrite to MW-only, in which case I can do just that. Both of our MW coils are close-spaced, which minimizes the amount of Litz wire one needs, but apparently Q suffers. So, you might want to try spacing out the coils on yours, using a longer length of Litz?
>
> I am thinking that if I were to take it on a trip and try to carry it onto a plane, I would bring a copy of the construction article to show them what it is. I would have it in a mailing tube, and I would go to the post office at the airport and mail it back to myself rather than have them confiscate it. If I were to check it in a bag, I might use a stand-alone shipping tube of some sort, perhaps one made for a fishing rod, again with a copy of the construction article in there should they decide to check it out. Using a hard-sided suitcase, with the antenna put in diagonally, might also work.
>
>
> Kevin
>
>
> --- In ultralightdx@..., "Pollock,Raphael E" wrote:
> >
> > Hi Kevin!
> >
> > Glad to see you becoming even more addicted to monster ferrites as well! I am wondering how well the 800 mu ferrites will work on MW as compared to the 125 mu--I don't know enough radio electronics to answer my own question. I also wonder about transporting the completed ferrite rod antennas. There is too much effort to make one of these things only to have it confiscated by Homeland Security at the airport, thinking that it might be a pipe bomb or some damn thing. On the other hand, I wouldn't want to take a chance of ferrite breakage by putting it in checked luggage...
> >
> > Your thoughts, my friend?
> >
> > Raph
> >
> > From: ultralightdx@... [mailto:ultralightdx@...] On Behalf Of dhsatyadhana
> > Sent: Wednesday, February 09, 2011 5:39 PM
> > To: ultralightdx@...
> > Subject: [ultralightdx] An even More Monstrous ferrite on the way
> >
> >
> >
> > Hi all:
> >
> > I just got off the phone with Stormwise, intending to order another 18" "Monster" ferrite, since I have a few other ideas about what to do with them. As it turns out, they are available in 2" increments, so I special-ordered a 24" inch model of the 800u permeability type (Model VFR24J). I think they're all made to order, so it's just a matter of him telling the fabricator how long to make it.
> >
> > He wasn't exactly sure of the price, likely $10 or so more than the 18" (which runs $33.75), but he'll let me know as soon as he gets a firm price on it. So, in about a week I should have an even larger Monster ferrite on hand, which I will likely devote to longwave with regeneration.
> >
> > Looks like I'm going to have to find a longer backpack for my morning commute DXpedition gear...
> >
> > Kevin S
> > Bainbridge Island, WA
> >
>


Re: An even More Monstrous ferrite on the way

Rik
 

As far as the AM ferrite antenna I bought from Stormwise, it is not a big improvement on AM over a SAT or TERK aircores or Gary's 8 inch ferrite for the PL-360. It does not tune sharply either, so there is no need to use a cap with a vernier. Even the two section cap of nearly 800 pF is less touchy than resonating the TERK or SAT.
I hope you guys who wind your own coils on the Stormwise ferrite can get better results. It is easier to pack than a large air core though for mountain top picnics. It is pretty rugged too, inside the PVC pipe with the caps on both ends glued on. - FARMERIK

--- In ultralightdx@yahoogroups.com, "dhsatyadhana" <dhsatyadhana@...> wrote:

Hi Raph:

The 800 mu permeability is still fine for resonating on MW, as far as I can tell. I have been comparing the 800 mu stick to my Q Stick, and the signal gain is substantially leap better on the Monster. The guy at Stormwise mentioned that to get max Q for the upper part of the band, the windings should be spaced out along the ferrite as much as possible: I will likely convert the "little" 18-inch ferrite to MW-only, in which case I can do just that. Both of our MW coils are close-spaced, which minimizes the amount of Litz wire one needs, but apparently Q suffers. So, you might want to try spacing out the coils on yours, using a longer length of Litz?

I am thinking that if I were to take it on a trip and try to carry it onto a plane, I would bring a copy of the construction article to show them what it is. I would have it in a mailing tube, and I would go to the post office at the airport and mail it back to myself rather than have them confiscate it. If I were to check it in a bag, I might use a stand-alone shipping tube of some sort, perhaps one made for a fishing rod, again with a copy of the construction article in there should they decide to check it out. Using a hard-sided suitcase, with the antenna put in diagonally, might also work.


Kevin


--- In ultralightdx@yahoogroups.com, "Pollock,Raphael E" <rpollock@> wrote:

Hi Kevin!

Glad to see you becoming even more addicted to monster ferrites as well! I am wondering how well the 800 mu ferrites will work on MW as compared to the 125 mu--I don't know enough radio electronics to answer my own question. I also wonder about transporting the completed ferrite rod antennas. There is too much effort to make one of these things only to have it confiscated by Homeland Security at the airport, thinking that it might be a pipe bomb or some damn thing. On the other hand, I wouldn't want to take a chance of ferrite breakage by putting it in checked luggage...

Your thoughts, my friend?

Raph

From: ultralightdx@yahoogroups.com [mailto:ultralightdx@yahoogroups.com] On Behalf Of dhsatyadhana
Sent: Wednesday, February 09, 2011 5:39 PM
To: ultralightdx@yahoogroups.com
Subject: [ultralightdx] An even More Monstrous ferrite on the way



Hi all:

I just got off the phone with Stormwise, intending to order another 18" "Monster" ferrite, since I have a few other ideas about what to do with them. As it turns out, they are available in 2" increments, so I special-ordered a 24" inch model of the 800u permeability type (Model VFR24J). I think they're all made to order, so it's just a matter of him telling the fabricator how long to make it.

He wasn't exactly sure of the price, likely $10 or so more than the 18" (which runs $33.75), but he'll let me know as soon as he gets a firm price on it. So, in about a week I should have an even larger Monster ferrite on hand, which I will likely devote to longwave with regeneration.

Looks like I'm going to have to find a longer backpack for my morning commute DXpedition gear...

Kevin S
Bainbridge Island, WA


Re: Digital Readout SRF-59

robert ross
 

Guy and the Group............

Yes Guy....I had totally forgot about that rig that John Bryant had built for Digital Readout on his SRF-39!!! John was truly amazing when it came to innovations to make Dxing better........and a lot simpler!! His Drive was something that is sadly missed here in the ULR Group and other radio venues!!! I only wish I had the knowlege and abilities that John possessed!! I'd love to build one of these.....but sadly, I would be lost in the construction!!! My Electronic Building skills are right up there with my  Fluency in Swahili and my Engineering Skills in Rocket Science!!!

Thanks for reminding me that John had "Already gone there...and done that!!"

I am envious that you have this great piece of ULR History in your possession!!! John would be happy to know it is in such appreciative hands now!!!

Regards.......ROB VA3SW

Robert S. Ross
London, Ontario CANADA
*****************************************************************

On 10/02/2011 1:16 PM, thinkdx wrote:
 

Hi Rob,

Is a digital readout SRF-39 (clear-cased "prison" version of the SRF-59) close enough?  :^)

John Bryant accomplished this in 2008, as another one of his clever and top-notch radio projects. Here's the link to the DXer.ca download area where you can find an article about it:


John's widow Linda gave me this unique digital readout SRF-39 project along with a number of other items John built. I feel honored to have them, but I certainly feel a twinge of sadness every time I admire or use one of these creations John designed.

In his article, John described making a more permanent and attractive housing or case for the digital SRF-39. I hope to accomplish this some day in his memory. We worked on many radio modifications together over the years, often building upon and improving each other's ideas in rapid fashion.

I was just tuning around on this digital SRF-39 last night, amazed at the stable frequency readout down to 1/1oth of a Kilohertz! John built in a vernier gear reduction drive, too, so tuning is much easier than with the tiny thumbwheel in the stock radio. 

Right now I'm using the tiny stock ferrite antenna that was built into the SRF-39 originally, but John made provision for an inductively coupled external antenna. So, there are possibilities galore for antenna experimentation too. 

73,

Guy Atkins
Puyallup, WA


Re: Digital Readout SRF-59

Guy Atkins
 

Hi Rob,

Is a digital readout SRF-39 (clear-cased "prison" version of the SRF-59) close enough?  :^)

John Bryant accomplished this in 2008, as another one of his clever and top-notch radio projects. Here's the link to the DXer.ca download area where you can find an article about it:


John's widow Linda gave me this unique digital readout SRF-39 project along with a number of other items John built. I feel honored to have them, but I certainly feel a twinge of sadness every time I admire or use one of these creations John designed.

In his article, John described making a more permanent and attractive housing or case for the digital SRF-39. I hope to accomplish this some day in his memory. We worked on many radio modifications together over the years, often building upon and improving each other's ideas in rapid fashion.

I was just tuning around on this digital SRF-39 last night, amazed at the stable frequency readout down to 1/1oth of a Kilohertz! John built in a vernier gear reduction drive, too, so tuning is much easier than with the tiny thumbwheel in the stock radio. 

Right now I'm using the tiny stock ferrite antenna that was built into the SRF-39 originally, but John made provision for an inductively coupled external antenna. So, there are possibilities galore for antenna experimentation too. 

73,

Guy Atkins
Puyallup, WA


--- In ultralightdx@..., "Robert S.Ross VA3SW" wrote:
>
> If I 
> could figure out a way of putting a DIGITAL  FREQUENCY READOUT on a 
> SRF-59........I think it would be King!!! Gary....Can you work on that 
> for me......a SRF-59 with Digital Readout!!!!  HAHAHHAA......

> 73....ROB VA3SW
> Robert S. Ross
> London, Ontario CANADA
>


Re: A Cold but Productive DX Commute - 3 New Beacons

Gary DeBock
 

Hello Kevin and All,

Thanks for your NDB-DXing report, Kevin. I was also up in the
subfreezing weather this morning chasing NDB's in the back yard, and
found the DX a lot hotter than the temperature. As you mentioned
233-ALJ at Johnstone Point, Alaska (Prince William Sound) was strong,
and I made a recording of it on the 7.5" LW loopstick PL-380:
http://www.mediafire.com/?b0l1y92wlhcygpz . Besides this, both Yukon
(248-QH) and NT (222-WY and 375-FS) were received for new provinces
here. NDB totals now on the LW plug-in loopstick PL-380 are 98
stations, 7 states (AK, WA, OR, CA, ID, MT and UT) and 6 provinces (YT,
NT, BC, AB, SK and MB).

For those interested in either LWBC or NDB-DXing (or both), Rob Ross
and I have already agreed to offer Ultralight Longwave-DXing awards as
soion as possible, which will be in exactly the same categories as the
MW-DXing awards (states, provinces, countries, hundreds of stations
heard, etc.). I think that Kevin and I both know how meaningful a 100
NDB Heard Award would be! Rob and I are discussing the final artwork
for the Longwave-DXing Award Certificates, which will be offered to
Ultralight DXers anywhere in the world. Get your loggings ready!

73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)

-----Original Message-----
From: dhsatyadhana <dhsatyadhana@yahoo.com>
To: ultralightdx <ultralightdx@yahoogroups.com>
Sent: Thu, Feb 10, 2011 8:39 am
Subject: [ultralightdx] A Cold but Productive DX Commute - 3 New Beacons

 
Hi all:

After taking yesterday off from morning DXing (dental appointment), I
was packed and ready to go last night, so I got to my picnic table in
the park this morning around 0530 local. It was COLD (at least for
here) - probably 28 degrees F.

Three new ones, including a new state/distance record, thanks to Gary's
tip:
233-ALJ Johnstone Point, Alaska (1305 miles)
248-QH Watson Lake, Yukon Territories (903 miles)
356-PND Portland, Oregon (140 miles)

The ULR log is now at 95 total.

Improvements to the DXing set-up included a cheap 12" plastic turntable
to rotate the radio/loopstick around (a HUGE improvement), putting my
station listings in a plastic sleeve protector, and an extra layer of
insulation to sit on. I still need another pair of socks and an extra
pants layer - after about 80 minutes in the cold, I was pretty chilled
through! I will probably start packing a pencil, since the pen was
writing sluggishly in the cold.

Rob - the local men in blue haven't spotted me yet (the park
technically isn't open until sunrise), nor has a Homeland Security
helicopter flown over trying to figure out what I'm doing with the
suspicious-looking long white cylinder :-)

Kevin S
Bainbridge Island, WA


Re: Comparing ferrite loopsticks a box loop on longwave

Rik
 

The PL-360 tunes some of my loop and long wire antennas, and still works with ones it cannot tune exactly. [It has a small ferrite you can unplug.]
All of my DSP radios can be coupled to an external ferrite or air core loop AM antenna too. - FARMERIK

--- In ultralightdx@yahoogroups.com, "w4dst" <w4dst@...> wrote:




My understanding is that the Tecsuns use a varactor (variable >capacitance) to tune the internal ferrite to the desired frequency. >This tuning process occurs every time you adjust the tuning knob, in >which case the receiver valiantly hunts for the optimum varactor >setting. This is a neat trick, allowing for enhanced sensitivity.
Not all Tecsuns, only the Tecsun receivers, and Grundig G8, using the Si4734 IC have this built-in varactor which is one of the best features of the chip. The inability to use an external MW antenna in a stock SI4734 based Tecsun or G8, PL-606 excepted, is a serious shortcoming. I've been able to tune a 24" square spiral loop, a 60 year old loop antenna from an old Zenith AM/FM radio, and several different ferrite bar antennas easily with my modified PL-380 and PL-310 using the internal varactor in the Si4734. As long as the impedance is within the chip's specs, the radio will tune it with no external capacitor needed.

Maybe Tecsun will start including the ability to use an external MW antenna in future radios like they have in the PL-606.

Rick W4DST


A Cold but Productive DX Commute - 3 New Beacons

Kevin Schanilec
 

Hi all:

After taking yesterday off from morning DXing (dental appointment), I was packed and ready to go last night, so I got to my picnic table in the park this morning around 0530 local. It was COLD (at least for here) - probably 28 degrees F.

Three new ones, including a new state/distance record, thanks to Gary's tip:
233-ALJ Johnstone Point, Alaska (1305 miles)
248-QH Watson Lake, Yukon Territories (903 miles)
356-PND Portland, Oregon (140 miles)

The ULR log is now at 95 total.

Improvements to the DXing set-up included a cheap 12" plastic turntable to rotate the radio/loopstick around (a HUGE improvement), putting my station listings in a plastic sleeve protector, and an extra layer of insulation to sit on. I still need another pair of socks and an extra pants layer - after about 80 minutes in the cold, I was pretty chilled through! I will probably start packing a pencil, since the pen was writing sluggishly in the cold.

Rob - the local men in blue haven't spotted me yet (the park technically isn't open until sunrise), nor has a Homeland Security helicopter flown over trying to figure out what I'm doing with the suspicious-looking long white cylinder :-)

Kevin S
Bainbridge Island, WA


ULR DX...........NEW STATION Logged at SUNRISE Today...........500 Watter from OHIO!!

robert ross
 

HI Guys:

Although Sunset Skip has been Tremendous since the beginning of January........Sunrise Skip has been somewhat less spectacular. I am usually up by 5 AM or so every day...and always tune around a little to see what it is happening on the band, but lately pickings have been slim in the mornings!! However, this morning I managed to squeeze out a NEW ONE from OHIO, a 500 WATTER!!!!

RADIO USED is..................................SONY SRF-T615 ULR Barefoot
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

ULR LOG TOTALS are now.................908 STATIONS Heard
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

73....................ROB VA3SW

Robert S. Ross
London, Ontario CANADA

********************************************************************************
1390 WBLL Bellfontaine, OHIO Feb/10/11 0721 EST EE FAIR
Alone on the Frequency....no sign of Regular WNIO!!!
Male DJ with ID at Tune In as "WBLL" @ 0721 EST. 2 Males with Sports Talk......
Basketball talk. Several ESPN and ESPN dot Com Mentions. Walmart Valentines
Day Ad @ 0727 EST. Faded out by 0728 EST.

NEW STATION ULR # 908 500 Watts/81 Watts Nights
ROSS, ONT.
*********************************************************************************


Re: An even More Monstrous ferrite on the way

Pollock,Raphael E <rpollock@...>
 

Hi Kevin!
 
The 48" 125 mu ferrite rod I purchased from Stormwise last year got to me without any warping, etc. I may try spreading out the coil on this one--perhaps experimenting with 28 AWG before committing precious Litz in a more finished product. I am not sure how much more Q I really need; the tuning right now, even with vernier reduction drives, is pretty sharp, especially above 1200 kHz--I am wondering if more Q would mean, in a practical sense, more functional gain which might be helpful (maybe?) in listening to low powered graveyard frequencies versus simply even more narrowed tuning...
 
I will await your results before doing any major surgery!
 
Raph
 


From: ultralightdx@... [ultralightdx@...] On Behalf Of dhsatyadhana [dhsatyadhana@...]
Sent: Wednesday, February 09, 2011 7:01 PM
To: ultralightdx@...
Subject: [ultralightdx] Re: An even More Monstrous ferrite on the way

 

The guy at Stormwise did mention that the reason they only advertise up to 18 inch versions is that at some point he's concerned about them getting bent, either in shipping or in final use. With the PVC coating on them, and the inherent strength of the ferrite material, I am not too worried about it, though. It'll be here next week, so I will report back how it fares.

Kevin

--- In ultralightdx@..., Jay Heyl wrote:
>
> On Wed, Feb 9, 2011 at 16:04, Pollock,Raphael E wrote:
>
> > On the other hand, I wouldn't want to take a chance of ferrite breakage by
> > putting it in checked luggage…
> >
>
> I could be wrong here, but I was under the impression the Stormwise ferrite
> rods were made of packed ferrite powder. This explains why they're available
> in such a variety of lengths. I would think there to be very little danger
> of breakage of the ferrite.
>
> -- Jay
>


Re: DXing Drought Concludes

Kirk <kirk74601@...>
 

--- In ultralightdx@yahoogroups.com, "ferrite61" <dxrx@...> wrote:

Some further research yields the following:
970 CMHD Camaguay 10kW
970 CMAI Consolacion 1kW
970 XEMH Merida (NW Yucatan Pen.) 5kW

Best three found. The Mexican station J.I.C.

Paul S. in CT
Thanks, Paul. I have to be honest with the group, Cuba confuses the hell out of me. When there's listings of more than one Cuban sta on a given freq, how do we know which one to count, if any?? (Especially confusing when the stations are both listed running the same power!) I've had a long day, I better tackle this issue when I'm better rested, ha ha.

Tnx again, Paul!!

Kirk Allen
Ponca City, OK


Re: SONY SRF-T615 ULR.......Wow....it's here....that only took 32 Days!!!!!

Jay Heyl
 

On Wed, Feb 9, 2011 at 12:33, Robert S.Ross VA3SW <va3sw@...> wrote:

Yeah..for travel purposes I always put the Radio into another Harder Case. Even a Hard Eyeglass Case works!! I've never had any problems carrying it in my Carry On Luggage on the plane. I wouldn't even put it in my Baggage........not for fears of Breakage as much as theft!!

The Pelican case was waiting by the door when I got home. It's the only thing I've ever gotten from Amazon that came with no packaging of its own, just the shipping box. I guess with a product this tough the packaging would be redundant. 

Anyway, the T615 fits almost perfectly. The case is designed for an iPod and includes an earbud extension that connects a jack on the outside of the case. This fits the T615 too. With the case closed the radio is very secure. There's a pocket in the lid that will hold the earbuds and extra batteries. 
 
If I could figure out a way of putting a DIGITAL  FREQUENCY READOUT on a SRF-59........I think it would be King!!! Gary....Can you work on that for me......a SRF-59 with Digital Readout!!!!  HAHAHHAA......

I fixed the tuning on one of mine. A digital readout would make it almost perfect. Sadly, that's beyond my capabilities.

  -- Jay


Re: An even More Monstrous ferrite on the way

Kevin Schanilec
 

That's probably the way to go, Russ! Just send it to the hotel or wherever I'm staying, and then mail it back once I'm done. It would be a tearful farewell to see it whisked away by TSA...

Thanks - Kevin

--- In ultralightdx@yahoogroups.com, Russ Edmunds <wb2bjh@...> wrote:

Don't count on having the chance to mail it. If they decide they don't like the looks of it, they'll just confiscate it, and if you argue too much, they'll detain you. If I wanted to take it on a trip I'd just mail it.

Russ Edmunds
15 mi NNW of Philadelphia
Grid FN20id
<wb2bjh@...>
FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15'; Grundig G8
AM:  Modified Sony ICF 2010's barefoot

--- On Wed, 2/9/11, dhsatyadhana <dhsatyadhana@...> wrote:

From: dhsatyadhana <dhsatyadhana@...>
Subject: [ultralightdx] Re: An even More Monstrous ferrite on the way
To: ultralightdx@yahoogroups.com
Date: Wednesday, February 9, 2011, 7:56 PM







 









Hi Raph:



The 800 mu permeability is still fine for resonating on MW, as far as I can tell. I have been comparing the 800 mu stick to my Q Stick, and the signal gain is substantially leap better on the Monster. The guy at Stormwise mentioned that to get max Q for the upper part of the band, the windings should be spaced out along the ferrite as much as possible: I will likely convert the "little" 18-inch ferrite to MW-only, in which case I can do just that. Both of our MW coils are close-spaced, which minimizes the amount of Litz wire one needs, but apparently Q suffers. So, you might want to try spacing out the coils on yours, using a longer length of Litz?



I am thinking that if I were to take it on a trip and try to carry it onto a plane, I would bring a copy of the construction article to show them what it is. I would have it in a mailing tube, and I would go to the post office at the airport and mail it back to myself rather than have them confiscate it. If I were to check it in a bag, I might use a stand-alone shipping tube of some sort, perhaps one made for a fishing rod, again with a copy of the construction article in there should they decide to check it out. Using a hard-sided suitcase, with the antenna put in diagonally, might also work.



Kevin



--- In ultralightdx@yahoogroups.com, "Pollock,Raphael E" <rpollock@> wrote:

Hi Kevin!
Glad to see you becoming even more addicted to monster ferrites as well! I am wondering how well the 800 mu ferrites will work on MW as compared to the 125 mu--I don't know enough radio electronics to answer my own question. I also wonder about transporting the completed ferrite rod antennas. There is too much effort to make one of these things only to have it confiscated by Homeland Security at the airport, thinking that it might be a pipe bomb or some damn thing. On the other hand, I wouldn't want to take a chance of ferrite breakage by putting it in checked luggage...
Your thoughts, my friend?
Raph
From: ultralightdx@yahoogroups.com [mailto:ultralightdx@yahoogroups.com] On Behalf Of dhsatyadhana
Sent: Wednesday, February 09, 2011 5:39 PM
To: ultralightdx@yahoogroups.com
Subject: [ultralightdx] An even More Monstrous ferrite on the way
Hi all:
I just got off the phone with Stormwise, intending to order another 18" "Monster" ferrite, since I have a few other ideas about what to do with them. As it turns out, they are available in 2" increments, so I special-ordered a 24" inch model of the 800u permeability type (Model VFR24J). I think they're all made to order, so it's just a matter of him telling the fabricator how long to make it.
He wasn't exactly sure of the price, likely $10 or so more than the 18" (which runs $33.75), but he'll let me know as soon as he gets a firm price on it. So, in about a week I should have an even larger Monster ferrite on hand, which I will likely devote to longwave with regeneration.
Looks like I'm going to have to find a longer backpack for my morning commute DXpedition gear...
Kevin S
Bainbridge Island, WA

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