Date   

Re: SRF M-37W

ronshire2000
 

also this unit i bought seems nearly deaf on the weather band. at home
here i seem to be receiving the same station in town on all seven of
the frequencies but still rather weakly recieved. and at an out of
town location could not hear any stations even though i know they are
close enough to be heard.

anyone have any thoughts on this?


SRF M-37W

ronshire2000
 

i just bought one these which are a new version without the soon to be
useless TV band with the 5 memories added to the FM side.

seems to have the same poor qualities in selectivity and images, spurs.

has anyone written something up on doing the filter mod (4.5 RadioLabs
filter LTS 450GW) thats been previously added on these units?

i'd assume that opening one of these up and reassembling would not
have the same problems and difficulties as the srf59 and like units
do. is this a true thought?


Re: Eton E100 "Equivalent"

dhsatyadhana <satya@...>
 

Hi Gary(s):

If memory serves, the e100 got a "C-" because of images, as opposed
to spurs. Not sure about yours, but mine has significant images
(thus the C-), so souping one up in an urban environment would be
iffy at best. However, if one was out at the Coast with no flame
throwers nearby, it would be a good candidate for a mega-transplant?

Kevin S.


--- In ultralightdx@yahoogroups.com, "Gary Kinsman" <gkinsman@...>
wrote:

Hi Gary,

In light of your statement below, why does the "Ultralight
Compendium"
give the E100 a C- for images/spurs, while the T615 gets a C?

Thanks,
Gary

--- In ultralightdx@yahoogroups.com, "Gary DeBock" <D1028Gary@>
wrote:

Unlike the SRF-T615, however, the E100 has good resistance
to
spurious signals in stock form, making it a good candidate for
mega-loopstick transplants. With 200 memories and class-leading
selectivity, I can't wait to see what it will do with a 21"
loopstick, hi.

73, Gary D.


Re: Eton E100 "Equivalent"

Gary DeBock
 

Hi Gary and Kevin,
 
     Both the SRF-T615 and the E100 have image reception issues, but the E100's image problem is more severe.  On the E100, the image of local KSUH-1450 sounds almost as strong on 540 as the station does on 1450.  The SRF-T615 receives the same image, but at a reduced level.
 
     The SRF-T615, however, has more spurious and overloading issues, which are like poison to a transplant.  Spurious signals, mixing products and selectivity overloads are all magnified by a transplant, making the SRF-T615 a poor choice for a huge loopstick.  The E100, with the exception of its nasty image issue, has a very selective and generally well-behaved receiver.  As such, it would be a logical choice for a mega-loopstick, assuming that one doesn't have multiple locals 1440 and above.  As the most selective stock Ultralight, even with a huge loopstick, it would handle strong locals far better than the SRF-T615.
 
                                                                                    73,  Gary DeBock       




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Re: Eton E100 "Equivalent"

Gary Kinsman
 

Hi Gary,

In light of your statement below, why does the "Ultralight Compendium"
give the E100 a C- for images/spurs, while the T615 gets a C?

Thanks,
Gary

--- In ultralightdx@yahoogroups.com, "Gary DeBock" <D1028Gary@...>
wrote:

Unlike the SRF-T615, however, the E100 has good resistance to
spurious signals in stock form, making it a good candidate for
mega-loopstick transplants. With 200 memories and class-leading
selectivity, I can't wait to see what it will do with a 21"
loopstick, hi.

73, Gary D.


Re: ULTRALIGHT COMPENDIUM

dhsatyadhana <satya@...>
 

Good catch, Ron! Use the headings on the left for all models - the
ones on the right were not updated in the last revision, and should be
the same as the ones on the left. I'll re-post it this weekend.

Thanks - Kevin

--- In ultralightdx@yahoogroups.com, "ronshire2000" <ronshire2000@...>
wrote:

can someone explain how the performance headings apply to the rows of
this portion of the matrix? that is, the headings on the left are not
the same as the headings on the right. i was assuming that those on
the right may apply only to those radios that are digital but not sure
that they don't just apply to the latter few columns that are not from
the sony family.


ULTRALIGHT COMPENDIUM

ronshire2000
 

can someone explain how the performance headings apply to the rows of
this portion of the matrix? that is, the headings on the left are not
the same as the headings on the right. i was assuming that those on
the right may apply only to those radios that are digital but not sure
that they don't just apply to the latter few columns that are not from
the sony family.


Re: new to ultra lite dx phenomenon

ronshire2000
 

SRF59's can be had at Meijers stores for $15, at ABCWarehouse
(Indiana, Ohio, Michigan) for $14. refurbed units available at
sonystyle for $9.99 with free shipping on tuesdays thru thursday.

Ron

I have posted once on the dxer.ca forum but this is the first time
here.I bought a Sony SRF- m37v at the local Wal-Mart (for about $30) 8
days ago.It does not do too badly on sensitivity ,but it leaves
something to be desired on selectivity close to my local WBBZ-1230
kHz.At night,i dont notice as many images.I can dx stations 20 kHz
away from WBBZ at night but not in the day.I am currently trying to
decide whether to get a second M37 v to try audio phasing or go for an
Eton E100,the Sony T-615 and/ or SRF-59.I really want to get 2 good
ultralights to try audio phasing.I have been using the M37v barefoot
for the past 7 days.I have reached my goal of logging 100 stations in
a week on this radio by reaching 101 stations.I tried to reach 25
states in 7 days but conditions last night were not good with storm
static very loud on some channels.I got to 22 states in the 7 day
period.I will try to reach the final 3 states needed to meet this
challenge within 3 days.I have also logged 5 countries so far.They are
U.S.A.,Canada,Mexico,Cuba and Turks and Caicos Islands.After i have
reached my 25 state goal,i will try out the M37v with my
Select-Antenna.I will post some of my better loggings barefoot after i
have finished with my goals.Has anyone on here tried out
state/provincial parks(inland) for dxpedition sites? How about
mountain tops?I have been thinking of going to Oklahoma,s highest
point,Black Mesa(4973 ft.) for a ham radio qrp dxpedition mainly but
also trying some mw ultralight dxing in the area.Hopefully i can do
this in September or October when conditions are quieter.I plan to do
a little dxing at Great Salt Plains State Park(OK) in about 2
weeks.Good Dx to all !
Carl DeWhitt,
KI5SF,
Ponca City,Oklahoma,U.S.A.


laredo log

lrdheat
 

SRF 59

May 2 1:00 am WBZ 50KW 1030 KHz 1897 miles from Laredo...local talk show, 617 area code adds. Also on 1030 KHz, KFAY Fayetteville AR, 1KW, 667 miles from Laredo, Coast to Coast show.


Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.


Re: new to ultra lite dx phenomenon

dhsatyadhana <satya@...>
 

Hi Carl:

Welcome to the craze! Many have the SRF-M37V, and with a new filter,
it really becomes a useful DX machine. If you have technical
abilities, the Sangean 455 khz filters available from RadioLabs may
be the thing - I know it really perked my M37V up.

If you've got the bucks, two T-615s would be an enviable set-up -
they are the overall stock sensitivity kings. Two E-100's would also
be great - their selectivity is the best that stock ultralights
offer, although make sure you get the type that can be aligned (i.e.,
the ones with movable coils on the ferrite), since they are better
sensitivity-wise up and down the dial. Check Durham Radio for one,
since those seem to be the movable coil type. I have an older one
that has a monolithic (and unmovable) coil on the ferrite: the high-
band sensitivity is the best of any ultralight, but it gets
progressively deaf as you move down the dial.

Kevin S
Bainbridge Island, WA



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

I have posted once on the dxer.ca forum but this is the first time
here.I bought a Sony SRF- m37v at the local Wal-Mart (for about
$30) 8
days ago.It does not do too badly on sensitivity ,but it leaves
something to be desired on selectivity close to my local WBBZ-1230
kHz.At night,i dont notice as many images.I can dx stations 20 kHz
away from WBBZ at night but not in the day.I am currently trying to
decide whether to get a second M37 v to try audio phasing or go for
an
Eton E100,the Sony T-615 and/ or SRF-59.I really want to get 2 good
ultralights to try audio phasing.I have been using the M37v barefoot
for the past 7 days.I have reached my goal of logging 100 stations
in
a week on this radio by reaching 101 stations.I tried to reach 25
states in 7 days but conditions last night were not good with storm
static very loud on some channels.I got to 22 states in the 7 day
period.I will try to reach the final 3 states needed to meet this
challenge within 3 days.I have also logged 5 countries so far.They
are
U.S.A.,Canada,Mexico,Cuba and Turks and Caicos Islands.After i have
reached my 25 state goal,i will try out the M37v with my
Select-Antenna.I will post some of my better loggings barefoot
after i
have finished with my goals.Has anyone on here tried out
state/provincial parks(inland) for dxpedition sites? How about
mountain tops?I have been thinking of going to Oklahoma,s highest
point,Black Mesa(4973 ft.) for a ham radio qrp dxpedition mainly but
also trying some mw ultralight dxing in the area.Hopefully i can do
this in September or October when conditions are quieter.I plan to
do
a little dxing at Great Salt Plains State Park(OK) in about 2
weeks.Good Dx to all !
Carl DeWhitt,
KI5SF,
Ponca City,Oklahoma,U.S.A.


new to ultra lite dx phenomenon

Carl DeWhitt
 

I have posted once on the dxer.ca forum but this is the first time
here.I bought a Sony SRF- m37v at the local Wal-Mart (for about $30) 8
days ago.It does not do too badly on sensitivity ,but it leaves
something to be desired on selectivity close to my local WBBZ-1230
kHz.At night,i dont notice as many images.I can dx stations 20 kHz
away from WBBZ at night but not in the day.I am currently trying to
decide whether to get a second M37 v to try audio phasing or go for an
Eton E100,the Sony T-615 and/ or SRF-59.I really want to get 2 good
ultralights to try audio phasing.I have been using the M37v barefoot
for the past 7 days.I have reached my goal of logging 100 stations in
a week on this radio by reaching 101 stations.I tried to reach 25
states in 7 days but conditions last night were not good with storm
static very loud on some channels.I got to 22 states in the 7 day
period.I will try to reach the final 3 states needed to meet this
challenge within 3 days.I have also logged 5 countries so far.They are
U.S.A.,Canada,Mexico,Cuba and Turks and Caicos Islands.After i have
reached my 25 state goal,i will try out the M37v with my
Select-Antenna.I will post some of my better loggings barefoot after i
have finished with my goals.Has anyone on here tried out
state/provincial parks(inland) for dxpedition sites? How about
mountain tops?I have been thinking of going to Oklahoma,s highest
point,Black Mesa(4973 ft.) for a ham radio qrp dxpedition mainly but
also trying some mw ultralight dxing in the area.Hopefully i can do
this in September or October when conditions are quieter.I plan to do
a little dxing at Great Salt Plains State Park(OK) in about 2
weeks.Good Dx to all !
Carl DeWhitt,
KI5SF,
Ponca City,Oklahoma,U.S.A.


Re: Eton E100 "Equivalent"

Gary Kinsman
 

Thanks for the tip, Brett. I just ordered one from the same place.

--- In ultralightdx@yahoogroups.com, "Brett Saylor" <bds2@...> wrote:

I just ordered an E100 from Durham Radio via eBay; they still have
several left on a "buy-it-now" auction at $49. I'm anxious to try it
out,

Brett


Re: Laredo log

John H. Bryant <bjohnorcas@...>
 

Excellent catch, Richard....  Hey, KNBR isn't too shabby either on an SRF-59!

John B.



At 07:10 PM 4/30/2008 -0700, you wrote:

SRF-59

Apr 30 12:30-1 am XEFO 680 250 watts Chihuahua, 408 miles from Laredo. 1970's, 80's type of music. Decent signal, but QRM from 680KHz stations KKYX San Antonio, and KNBR San Francisco occasionally made reception difficult.


B







Laredo log

lrdheat
 

SRF-59

Apr 30 12:30-1 am XEFO 680 250 watts Chihuahua, 408 miles from Laredo. 1970's, 80's type of music. Decent signal, but QRM from 680KHz stations KKYX San Antonio, and KNBR San Francisco occasionally made reception difficult.


Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.


Re: Eton E100 "Equivalent"

Gary DeBock
 

Thanks Brett and John,

I just ordered a couple more of these feature-packed E100's,
thanks to your messages. The price is great, and Durham's units have
all come with the tunable loopstick, making full alignment possible.
After alignment according to the file recently prepared by John (with
minor help from me), the E100 should be tops in both sensitivity and
selectivity among the Ultralights, exceeded only by the SRF-T615's
low-band sensitivity.

Unlike the SRF-T615, however, the E100 has good resistance to
spurious signals in stock form, making it a good candidate for mega-
loopstick transplants. With 200 memories and class-leading
selectivity, I can't wait to see what it will do with a 21"
loopstick, hi.

73, Gary D.

-- In ultralightdx@yahoogroups.com, "John H. Bryant"
<bjohnorcas@...> wrote:

I just got another one of those, too, Brett.... I wanna have a
back-up. There are several E100s, new in the box on ebay right
now.
The going price is about $50. I suspect that the supply will be
soon
exhausted.... it is such a good little radio.

John B.




At 08:45 PM 4/30/2008 -0400, you wrote:

I just ordered an E100 from Durham Radio via eBay; they still have
several left on a "buy-it-now" auction at $49. I'm anxious to try
it out,

Brett

On Sat, Apr 26, 2008 at 3:03 PM, John H. Bryant
<<mailto:bjohnorcas@...>bjohnorcas@...> wrote:
Brett,

I'm the wrong person to ask.... Gary and the Technical Committee
(Gil, Kevin S., Joe) are the ones that rule on such. The E100-
was
actuaqlly just a cubic inch over the 20 cu./in. general size limit
and has neither a switchable pre-amp nor switchable IF filters,
either of which would tend to rule out a candidate radio.... So,
the E100 is likely fairly unique. The among things that have been
on the market for a while. The new E1100 hasn't ben tested or
evaluated for inclusion in list of Ultralights. It doesn't have
direct 10-pushbutton frequency entry, but may be quite similar,
otherwise. I hope so. It retails for just $60 as opposed to the
$100 pricetag for the E100.




At 01:30 PM 4/26/2008 -0400, you wrote:

John,

Given the dwindling supply, are there any "equivalent" current
Grundig/Tecsun models that might also be contenders for this
class of radio?

Brett Saylor


On Sat, Apr 26, 2008 at 1:15 PM, John H. Bryant
<<mailto:bjohnorcas@...> bjohnorcas@...> wrote:
I should also mention that an E100 just went for $46.00 Friday
night
on ebay (to one of us, I hope) and there are several others
available
on the auction site, too. If I remember, they start at a slightly
higher price, but still at a real discount from suggested retail
price. This wonderful little radio has been discontinued by Eton,
so
if you think that you would like to have one, NOW IS THE TIME













Photos of National SRF-39

John H. Bryant <bjohnorcas@...>
 

The one photo that I inserted in a recent message about completing the National SRF-59 got stripped out of the message before it got to some of you, but reached others... So, I've uploaded another gallery of photos to the Photo section of our group web page. Its http://ph.groups.yahoo.com/group/ultralightdx/photos


John B.
Stillwater, Oklahoma, USA
Rcvrs: WiNRADiO 313e, Eton e1, NRD-535(kiwa-mods)
Antennas: 700' NE/SW mini-Bev, Wellbrook Phased Array (pre-production version)


Re: Eton E100 "Equivalent"

John H. Bryant <bjohnorcas@...>
 

I just got another one of those, too, Brett.... I wanna have a back-up.  There are several E100s, new in the box on ebay right now. The going price is about $50.  I suspect that the supply will be soon exhausted.... it is such a good little radio.

John B.




At 08:45 PM 4/30/2008 -0400, you wrote:

I just ordered an E100 from Durham Radio via eBay; they still have several left on a "buy-it-now" auction at $49. I'm anxious to try it out,

Brett

On Sat, Apr 26, 2008 at 3:03 PM, John H. Bryant < bjohnorcas@...> wrote:
Brett,

I'm the wrong person to ask.... Gary and the Technical Committee (Gil, Kevin S., Joe)  are the ones that rule on such. The E100- was actuaqlly just a cubic inch over the 20 cu./in. general size limit and has neither a switchable pre-amp nor switchable IF filters, either of which would tend to rule out a candidate radio....  So, the E100 is likely fairly unique.  The among things that have been on the market for a while.  The new E1100 hasn't ben tested or evaluated for inclusion in list of Ultralights.  It doesn't have direct 10-pushbutton frequency entry, but may be quite similar, otherwise.  I hope so.  It  retails for just $60 as opposed to the $100 pricetag for the E100.




At 01:30 PM 4/26/2008 -0400, you wrote:

John,

Given the dwindling supply, are there any "equivalent" current Grundig/Tecsun models that might also be contenders for this class of radio?

Brett Saylor


On Sat, Apr 26, 2008 at 1:15 PM, John H. Bryant < bjohnorcas@...> wrote:
I should also mention that an E100 just went for $46.00 Friday night
on ebay (to one of us, I hope) and there are several others available
on the auction site, too.  If I remember, they start at a slightly
higher price, but still at a real discount from suggested retail
price.  This wonderful little radio has been discontinued by Eton, so
if you think that you would like to have one, NOW IS THE TIME
























Re: Eton E100 "Equivalent"

Brett Saylor <bds2@...>
 


Re: A liitle OT: suggestion for antenna shielding

John H. Bryant <bjohnorcas@...>
 

Very interesting, Huelbe.... and not off topic at all!

Thanks!

John B.







At 07:36 PM 4/30/2008 -0300, you wrote:

Hello,
 
there are a few sources relating the pros and cons of using a shield over the loop antenna.
 
However, some time ago I found an original way to shield a ferrite loop, it was made by PA2OHH Onno for his Navtex (518KHz) receiver: http://home.hetnet.nl/~pa2ohh/07fer.htm
 
Onno used a flat, multi-wire cable (like those used with hard-disks) to build the shield.
 
Perhaps one can make a try in an ultra-light or not-so-light receiver :)
 
73,
 
Huelbe.















John B.
Stillwater, Oklahoma, USA
Rcvrs: WiNRADiO 313e, Eton e1, NRD-535(kiwa-mods)
Antennas: 700' NE/SW mini-Bev, Wellbrook Phased Array (pre-production version)


A liitle OT: suggestion for antenna shielding

huelbe_garcia@...
 

Hello,
 
there are a few sources relating the pros and cons of using a shield over the loop antenna.
 
However, some time ago I found an original way to shield a ferrite loop, it was made by PA2OHH Onno for his Navtex (518KHz) receiver: http://home.hetnet.nl/~pa2ohh/07fer.htm
 
Onno used a flat, multi-wire cable (like those used with hard-disks) to build the shield.
 
Perhaps one can make a try in an ultra-light or not-so-light receiver :)
 
73,
 
Huelbe.