Date   

Re: Georgia and South Carolina coast ulr dx sessions,part 3

Carl DeWhitt
 

Thanks for the info.
Carl

--- In ultralightdx@..., "nn4cw" <gilstacy@...> wrote:


Carl,
They are not terminated to ground at either end or at the radio. I use a 500' and 325' bogs running parallel. I also take my E1 or Palstar and phasing unit. For ULRs, I rely solely on a bog without the phasing system.
I just lay them in the sand and they lie flat. Walkers usually just step over them fearing sudden death by electrocution.
Gil


Re: A Few Logs

Carl DeWhitt
 

That sounds like what hams say"Life,s too short for QRP".Hi!hi!
'
'

--- In ultralightdx@..., "jim_kr1s" <jkearman@...> wrote:


--- In ultralightdx@..., "wa8lcz" <wa8lcz@> wrote:

Hi John,

I wont be sending you anymore logs, since i have now crossed over to
the Dark Side.

Ha! All my loggings since sometime in December have been Unlimited. I
have a new motto: "Life's too short for ferrite rods." (That's a joke,
okay?) Now it's time to take the next step and get a PL-380. Analog
dials are so 20th century! That is one hot rod of a radio. Moved mine
back to MW tonight, was listening on 1020, and could not null a 10 kW
Cuban. Finally realized the toroid was bringing them in about 50 dBu
with no antenna connected. Stuck the whole works inside an old steel
mini-cabinet, with headphone and antenna feedline coming out under the
lid, and managed to shut them up. When I finally box up these toroids
they'll have to go in metal or metalized containers.

If I were into pain I'd see how much I could log with only that toroid
for an antenna. Make the leap, Byron, you'll be glad.

73,

Jim, KR1S
http://kr1s.kearman.com/ <http://kr1s.kearman.com/>


MI LOG

wa8lcz
 

10Apr2010 Sat NOTHING

11Apr2010 Sun
1480 WGVU Kentwood MI 0711 EDT 2k 5k 129 mi old oldies IBOC #284
**** in Aug 2009 they switched from public radio to NPR oldies 50'S &
**** 60's plus online listening, good music

12Apr2010 Mon nothing

13Apr2010 Tue
620 CMGN Colon, Matanzas, Radio Rebelde 2232 EDT 30kw Cuban#8, unlim#285

670 CMBA Arroyo Arenas, Ciudad Habana Cuba, Radio Rebelde 2243 EDT 50kw Cuban#9, unlim#286



Byron wa8lcz nr Detroit Mi 286
Kenwood TS450S, JPS DSP, litz loop 38x38 in

stations 286, states 34, countries 3, graveyard 16, provinces 4
Canadians 35, Cuban 9, 3-letter calls 23


2 new ones for me last night

Rick Garrett <IndyRick@...>
 

Grabbed 2 new ones for me last night.  STILL stuck at the 18 state level, but I'm getting a new station here and there. :)

1130, WISN, Milwaukee, WI.  They were pounding in pretty good for a while, nice copy.

800, KXIC, Iowa City, Iowa.  Nice signal from just about sunset till about 20 minutes after sunset, then down in the mud.

Happy Wednesday, everyone!


Re: Georgia and South Carolina coast ulr dx sessions,part 3

Gil Stacy
 

Carl,
They are not terminated to ground at either end or at the radio. I use a 500' and 325' bogs running parallel. I also take my E1 or Palstar and phasing unit. For ULRs, I rely solely on a bog without the phasing system.
I just lay them in the sand and they lie flat. Walkers usually just step over them fearing sudden death by electrocution.
Gil


Re: Tecsun PL-360 Plug-in Loopsticks-- Huge AM Sensitivity...

Gary DeBock
 

Hi Carl,
 
Thanks for your comments.
 
This PL-360 plug-in loopstick experimentation is so much fun that I ordered a second unit from Anon-co today (by EMS shipment, only an extra $5), in order to have more detailed comparisons. The 3" x 3/8" type 61 ferrite bar-based loopstick tested here last night really outperformed all of the stock Tecsun DSP models on the AM band, and it should perform equally well in the PL-380 as a "stealth" loopstick (located in the battery compartment, as suggested by Gil and Stephen). Next on the PL-360 agenda here is a 7.5" LW-optimized plug-in loopstick made of type 33 ferrite bars, which are already on hand.
 
The PL-380 can certainly be modified to accept plug-in loopsticks in this way, but the 1/8" phone jack housing would need to be reinforced to hold the weight of the 7.5" loopsticks. Because of the thin cabinet shell a more practical solution might be to mount the phone jack on an external piece of plastic glued to the front cabinet's top surface, like with the E100 Sliders and 7.5" loopstick PL-380's. The PL-360's top cabinet phone jack seems quite tough, though, and can hold even the 7.5" plug-in loopsticks very securely.
 
73, Gary  
 
In a message dated 4/13/2010 1:09:47 P.M. Pacific Daylight Time, carl_elissa@... writes:

 

It sounds great,Gary ! I will await the results of your experimentation eagerly.It would be great if they made a bandwith selectable DSP ulr that had a plug in loop stick.Something like a PL-380 with a plug in for a loop stick.
73
Carl DeWhitt
Maryville, Tn.

--- In ultralightdx@yahoogroups.com, D1028Gary@... wrote:
>
> Hello All,
>
> The Tecsun PL-360 is one of the smallest Si4734 DSP-chip Ultralights, with
> a rather modest stock loopstick. It has fixed 3 kHz DSP selectivity, and
> fully enabled soft mute-- similar to the Tecsun PL-300WT/ Grundig G8 models.
> But is does one have one stellar quality that is unique among the DSP
> Ultralights produced so far-- the loopstick is of a plug-in variety, using a
> standard RCA phono plug. The owner can switch to an extremely sensitive 7.5"
> Amidon loopstick within a couple of seconds, without doing any "surgery" to
> the radio at all.
>
> Today the first Amidon 7.5" plug-in loopstick for the PL-360 was created
> here, and it transforms this modest radio into a extremely sensitive DX
> chaser, fully equal to the E100 Sliders, 7.5" loopstick PL-380's and other
> DXing sensations. Both sensitivity and nulling ability are the equal of any
> other modified Ultralight, and the fact that a user can obtain this massive AM
> sensitivity boost without any modification to the radio is very exciting.
> For domestic DXers who don't usually need 1 kHz DSP selectivity, this radio
> may become a dream machine.
>
> The stock 300 uh loopstick coil can easily be replaced with a plug-in
> design of the user's choice, and besides the 450 uh type 61 7.5" loopstick model
> shown, a medium-sized loopstick (on a different length of type 61 bar)
> will shortly be tested out here. The plug-in loopsticks may well make this
> model one of the most popular Ultralights for domestic DXers, and an ideal
> platform for loopstick experimentation.
>
> 73 and Good DX,
> Gary DeBock (in Puyallup, WA, USA)
>


Re: A Few Logs

jim_kr1s <jkearman@...>
 


--- In ultralightdx@..., "wa8lcz" wrote:
>
> Hi John,
>
> I wont be sending you anymore logs, since i have now crossed over to the Dark Side.

Ha! All my loggings since sometime in December have been Unlimited. I have a new motto: "Life's too short for ferrite rods." (That's a joke, okay?) Now it's time to take the next step and get a PL-380. Analog dials are so 20th century! That is one hot rod of a radio. Moved mine back to MW tonight, was listening on 1020, and could not null a 10 kW Cuban. Finally realized the toroid was bringing them in about 50 dBu with no antenna connected. Stuck the whole works inside an old steel mini-cabinet, with headphone and antenna feedline coming out under the lid, and managed to shut them up. When I finally box up these toroids they'll have to go in metal or metalized containers.

If I were into pain I'd see how much I could log with only that toroid for an antenna. Make the leap, Byron, you'll be glad.

73,

Jim, KR1S
http://kr1s.kearman.com/ 


Re: Georgia and South Carolina coast ulr dx sessions,part 3

Carl DeWhitt
 

How do you keep the bogs out of the way of the beach walkers ?
Also,what are the typical lengths of your bogs?
Do you terminate them or leave them unterminated ?
I might try the Gary Deacon method around here if i can find a suitable place.
Thanks and 73.
Carl

--- In ultralightdx@..., "nn4cw" <gilstacy@...> wrote:



Carl,

I've found the simplest way to couple bog to URL is the Gary Deacon method of just winding a few turns around the RX along the axis of the internal ferrite.

I DXed a couple of times at Tybee during October. One night I was able to pick up England, Spain and Duba. Spain was barefoot. I need to try it more. Laziness keeps me home. ;)

Tybee has beach walkers all hours of the night, year round.

73, Gil


g8 internals

George Magiros
 

Hi all.  I took some time (unemployment therapy) over this week to find out what exactly the g8 sends to the si4734.  I tapped the sen, sclk and sdio lines between the si4734 and the g8's cpu using a AVR microcontroller.   It worked so here is a list of all of the si4734 properties the g8 sets as it goes into AM or SW mode.

rx_volume=63 (max)
am_channel_filter=2 (3 kHz bandwidth)
0x3103=12288 (?)
am_deemphasis=1 (50 us)
am_rsq_snr_high_threshold=25 dB
am_rsq_snr_low_threshold=10 dB
am_rsq_rssi_high_threshold=30 dBuV
am_rsq_rssi_low_threshold=10 dBuV
am_soft_mute_rate=64 (278 dB/s)
am_soft_mute_snr_threshold=6 dB
am_soft_mute_max_attenuation=48 dB (if set to 0 soft mute would be disabled)
am_soft_mute_slope=2 dB attenuation / dB below soft mute snr threshold
am_seek_band_bottom=520 kHz (3200 for sw)
am_seek_band_top=1710 kHz (21950 for sw)
am_seek_freq_spacing=10 kHz (5 for sw)
am_seek_tune_snr_threshold=5 dB (2 for sw)
am_seek_tune_rssi_threshold=19 dBuV

I don't know why the g8 even bothers to set the _seek_ or _rsq_ properties because from what I can tell the cpu does the seek completely manually: it tunes to the frequency and then reads the rssi and snr values directly to determine when to stop.

Lastly, as you know the si4734 has a variable tuning capacitor inside its LNA.  The capacitance can be set manually or it can be set to let the si4734 automatically determine the optimal value.  In AM mode the g8 uses a value of 0 (automatic selection) for the antenna capacitance.  In SW mode the g8 uses a value of 1 (or 7pF) however.

george


One New Log- WYLF-850

John Cereghin <jcereghin@...>
 

One new UL log tonight, bagged on the E-100:

850 WYLF Penn Yan NY, 2000, lite standards music, sounded something like "America's (Best Kept Secret?) or (Best Music...?)" (hard to tell with the weak signal), WYLF Penn Yan."

UL Log 693.

--
John Cereghin WDX3IAO  KB3LYP
Smyrna DE
My radio page www.pilgrimway.org/dx
The Ultralight Scoreboard  www.pilgrimway.org/ulradio


Re: A Few Logs

John Cereghin <jcereghin@...>
 

Byron,

We aren't making any difference between unlimited and otherwise in ultralight logs.  We count it, no matter how you log it.

And I have never logged South Dakota on AM, but I have on FM!



On Tue, Apr 13, 2010 at 7:19 PM, wa8lcz <wa8lcz@...> wrote:
 

Hi John,

I wont be sending you anymore logs, since i have now crossed over to the Dark Side. thats right, i'm now in the unlimited class. got tired of listening to static and dupes. wanted to get back into the game and log some new ones often. i'm using a 38x38 inch litz loop.

i have added a 6 to 1 vernier to the Sony SRF-59 and its tuning is sooo much improved, that i can hardly believe it. still thinking about adding another ferrite rod antenna to it. i'm also starting to DX on the FM band.

still chasing states on AM, working on AL and SD and local MI stations. I hope you add an unlimited section, but if you dont, thats ok.

was wondering if you have logged SD, if so what freq ?

byron wa8lcz


--- In ultralightdx@..., John Cereghin wrote:
>
> After a few days chasing FM tropo (and bagging 15 new stations), it's back
> to the ultralights and I've managed to add two new stations to the UL log:
>
> 920 WURA, Quantico VA, 4/9 at 2035, tejano music
>
> 1260 WHYM, Lake City SC, 4/10 at 0730, call ID, Fox Sports Radio, announced
> a FM parallel, probably 93.7
>
> Now at 692 ultralight stations.**
>
> --
> John Cereghin WDX3IAO KB3LYP
> Smyrna DE
> My radio page www.pilgrimway.org/dx
> The Ultralight Scoreboard www.pilgrimway.org/ulradio
>




--
John Cereghin WDX3IAO  KB3LYP
Smyrna DE
My radio page www.pilgrimway.org/dx
The Ultralight Scoreboard  www.pilgrimway.org/ulradio


Re: Georgia and South Carolina coast ulr dx sessions,part 3

Gil Stacy
 

Carl,

I've found the simplest way to couple bog to URL is the Gary Deacon method of just winding a few turns around the RX along the axis of the internal ferrite.

I DXed a couple of times at Tybee during October. One night I was able to pick up England, Spain and Duba. Spain was barefoot. I need to try it more. Laziness keeps me home. ;)

Tybee has beach walkers all hours of the night, year round.

73, Gil


Re: A Few Logs

wa8lcz
 

Hi John,

I wont be sending you anymore logs, since i have now crossed over to the Dark Side. thats right, i'm now in the unlimited class. got tired of listening to static and dupes. wanted to get back into the game and log some new ones often. i'm using a 38x38 inch litz loop.

i have added a 6 to 1 vernier to the Sony SRF-59 and its tuning is sooo much improved, that i can hardly believe it. still thinking about adding another ferrite rod antenna to it. i'm also starting to DX on the FM band.

still chasing states on AM, working on AL and SD and local MI stations. I hope you add an unlimited section, but if you dont, thats ok.

was wondering if you have logged SD, if so what freq ?


byron wa8lcz

--- In ultralightdx@..., John Cereghin <jcereghin@...> wrote:

After a few days chasing FM tropo (and bagging 15 new stations), it's back
to the ultralights and I've managed to add two new stations to the UL log:

920 WURA, Quantico VA, 4/9 at 2035, tejano music

1260 WHYM, Lake City SC, 4/10 at 0730, call ID, Fox Sports Radio, announced
a FM parallel, probably 93.7

Now at 692 ultralight stations.**

--
John Cereghin WDX3IAO KB3LYP
Smyrna DE
My radio page www.pilgrimway.org/dx
The Ultralight Scoreboard www.pilgrimway.org/ulradio


Re: Tecsun PL-360 Plug-in Loopsticks-- Huge AM Sensitivity Boosts

jim_kr1s <jkearman@...>
 


--- In ultralightdx@..., "Carl" wrote:
>
> It would be great if they made a bandwith selectable DSP ulr that had a plug in loop stick.Something like a PL-380 with a plug in for a loop stick.

About half an hour with a butter knife and a soldering iron is all it takes. Even better if you go the toroid-Hoop Loop route, as then you can use a real antenna. Being more than 3 times the width of a 7.5" rod, the Hoop Loop just blows it away. Plus, it looks nice in the living room. Your friends will think you're into modern sculpture.  Oh, that reminds me. Chris Knight had the idea of pinning a quilt on the frame to stealth-i-fy the Hoop Loop. You could change the fabric to suit the season. It's not just a DX magnet, it's a decorator's delight!  ;)

http://kr1s.kearman.com/html/hooploop.html
 

73,

Jim, KR1S
http://kr1s.kearman.com/ 


Re: PL-360? - FARMERIK

jim_kr1s <jkearman@...>
 


--- In ultralightdx@..., "farmerik" wrote:
>
> I noticed in the eBay listing, the 360 only tunes LW in 9kHz. steps. Are these the standard ones used in Europe? I am on the East coast, and with the help of a really big LW antenna I was hoping to tune broadcasts from across the pond. - FARMERIK

It probably  defaults to 9/1 on LW. The PL-380 does as well. It will tune 1-kHz steps, but if you spin the knob it defaults to 9. I haven't tried but I don't think you can set it to 1/10  as you can on MW.

You'd want the ability to tune in 1-kHz steps. Most European LW BCers use the 9-kHz plan, but there are exceptions. The plan is: 153, 162, 171, 180, 189, 198, 207, 216, 225, 234, 243, 252, 261, 270, 279.

But the Germans Deutschlandradio Kultur - 177, and Radio Europe 1 - 183 are off the beam.

You aren't really on the East Coast, you're more like 85 miles inland. Before you go for a big LW antenna, how many TA MW stations can you hear? From much experience I can tell you that the difference between on the beach and ten miles inland is dramatic. From Canton, CT, about 40 miles farther west than you, I could hear MW TAs in winter, with a long Beverage and a preamp connected to an SP-600, but they were never as strong as they are here on a 23-inch loop + PL-380. From the northern Bahamas I could hear Cuban LW beacons with a barefoot DX-440 that I still haven't heard from home here in Florida. Location, location, location.

Just got around to checking on Google Earth. Turns out that looking at Europe, I'm a little over 10 miles inland, and it's 6 miles to the ocean looking at North Africa. Seems closer when there's a hurricane!

73,

Jim, KR1S
http://kr1s.kearman.com/ 


Re: Tecsun PL-360 Plug-in Loopsticks-- Huge AM Sensitivity Boosts

Carl DeWhitt
 

It sounds great,Gary ! I will await the results of your experimentation eagerly.It would be great if they made a bandwith selectable DSP ulr that had a plug in loop stick.Something like a PL-380 with a plug in for a loop stick.
73
Carl DeWhitt
Maryville, Tn.

--- In ultralightdx@..., D1028Gary@... wrote:

Hello All,

The Tecsun PL-360 is one of the smallest Si4734 DSP-chip Ultralights, with
a rather modest stock loopstick. It has fixed 3 kHz DSP selectivity, and
fully enabled soft mute-- similar to the Tecsun PL-300WT/ Grundig G8 models.
But is does one have one stellar quality that is unique among the DSP
Ultralights produced so far-- the loopstick is of a plug-in variety, using a
standard RCA phono plug. The owner can switch to an extremely sensitive 7.5"
Amidon loopstick within a couple of seconds, without doing any "surgery" to
the radio at all.

Today the first Amidon 7.5" plug-in loopstick for the PL-360 was created
here, and it transforms this modest radio into a extremely sensitive DX
chaser, fully equal to the E100 Sliders, 7.5" loopstick PL-380's and other
DXing sensations. Both sensitivity and nulling ability are the equal of any
other modified Ultralight, and the fact that a user can obtain this massive AM
sensitivity boost without any modification to the radio is very exciting.
For domestic DXers who don't usually need 1 kHz DSP selectivity, this radio
may become a dream machine.

The stock 300 uh loopstick coil can easily be replaced with a plug-in
design of the user's choice, and besides the 450 uh type 61 7.5" loopstick model
shown, a medium-sized loopstick (on a different length of type 61 bar)
will shortly be tested out here. The plug-in loopsticks may well make this
model one of the most popular Ultralights for domestic DXers, and an ideal
platform for loopstick experimentation.

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


Re: Georgia and South Carolina coast ulr dx sessions,part 3

Carl DeWhitt
 

Gil:
The next time i plan to be in your area,I will let you know.
How do you couple the bogs to your ulrs ? I have a Q-Stick + that should work for that.Do you find the fall to be the best time for the best dx from your area both propagation wise and for the lack of tourists who may get in the way ?
Thanks and 73.
Carl DeWhitt
Maryville ,Tn.

--- In ultralightdx@..., "nn4cw" <gilstacy@...> wrote:


Carl and others vacationing in Low Country,

I live 13 miles from Tybee Island. If I can't get out to dx with you, I can lend you my bogs and direct you to a good location to stretch'em out.

73 Gil


Re: PL-360? - FARMERIK

Gary DeBock
 

Hello Farmerik,
 
The PL-360 can tune LW in 1 kHz steps, although this must be done manually, with the tuning knob rotated at a slow rate. When rotated at a fast rate, the tuning knob shifts to the standard 9 kHz step frequencies. In LW the digital tuning functions only work in 9 kHz steps, and there is no distinct "LW" band on the PL-360 (or "LW" selection on the front panel), since the frequencies are simply added to the MW frequencies on the 9 kHz band plan. In this arrangement, the user can tune from 153 kHz all the way up to 1620 kHz in 9 kHz steps. Slowing down the tuning knob rotation can allow the user to tune down to 150 kHz, however. The lack of any "LW" selection on the front panel can mislead new users into thinking the radio lacks LW coverage (even me, originally). 
 
As might be expected, the improved plug-in MW loopsticks also boost up LW performance dramatically over the midget stock loopstick, although I've yet to record detailed "Shootout" results. An LW-band specialist could easily construct an LW-optimized loopstick for great performance on this band, if desired. A dedicated ULR-DXer could even assemble a "tool kit" of serious PL-360 plug-in loopsticks, to use for maximum versatility on both LW and MW.
 
73, Gary   
 
  
 
In a message dated 4/13/2010 12:20:24 P.M. Pacific Daylight Time, farmerik@... writes:

 

I noticed in the eBay listing, the 360 only tunes LW in 9kHz. steps. Are these the standard ones used in Europe? I am on the East coast, and with the help of a really big LW antenna I was hoping to tune broadcasts from across the pond. - FARMERIK


Nice package from CKOC, Oldies 1150 :)

Rick Garrett <IndyRick@...>
 

A couple of months ago I logged CKOC, oldies 1150.  Sent them a reception report via email and, quite frankly, forgot about it.

Today, I opened up my mailbox to a very nice veri letter, window clings, air fresheners, and an ice scraper, all with the station logo on them. WAY cool!  I love unexpected surprises like that!

Happy Dxing, everyone!

Rick N9GSU

http://patchworkstringband.com
http://facebook.com/thedulcimerguy
http://twitter.com/indycacher


PL-360? - FARMERIK

Rik
 

I noticed in the eBay listing, the 360 only tunes LW in 9kHz. steps. Are these the standard ones used in Europe? I am on the East coast, and with the help of a really big LW antenna I was hoping to tune broadcasts from across the pond. - FARMERIK