Date   

Re: loggings on SRF-M37V

bbwrwy
 

Thanks for reporting KWHN-1650. The station had been off since early
spring due to flood damage at the transmitter site. It's good to
learn they've returned. I'll have to try to log them this evening
before sunset. It shouldn't be too difficult a reach at only 296
kilometers.

I logged a couple of new Arkansas stations within the last 24 hours,
KGFL-1110 (5 kW @ 458 km) and KCAB-980 (32 W @ 406 km), using a
SRF-T615.

Good DX. While you're hearing signals from across an ocean, I'm just
hoping to catch something from over the river.

Richard Allen.


Re: loggings on SRF-M37V

MarkWA1ION
 

Heard here (or at shore 15-20 miles away) on 1200 at various times:

Fortaleza, Brazil - Portuguese
YVOZ Caracas, Venezuela - Spanish "R. Tiempo"
WKOX Framingham/Boston, MA, USA - Spanish "R. Rumba"

Maybe that helps.

Mark Connelly, WA1ION - Billerica, MA, USA

--- In ultralightdx@..., Allen Willie <vo1_001_swl@...>
wrote:


 
 
  Pre-sunrise Dxing this morning with the SRF-37V yielded a couple
of catches.
 
Jul 30/08 - 1650 khz - 6:30 UTC  KWHN - Fort Smith, Arkansas w/
newstalk radio.com and ID  by man ; fair (My first Arkansas station
on ultralights State # 21)
 
Jul 30/08 - 1200 khz - 5:50 UTC - Unidentified w/ spanish or
portugeuse vocals and island type music; fair
 
Any ideas guys on the 1200 khz ? , usually I only hear WOAI or CFGO
Ottawa here on 1200. The mystery station was in and out for about 20
minutes but no ID heard, anyone else in the Northeast hear this last
night ?
 
 
73
Allen Willie
St. John's, Newfoundland


Re: Toshiba RP-F11

Steve Ponder <n5wbi@...>
 

John,

Methinks I may have muddied the waters a bit. Sorry for all
the confusion, especially coming from a newbie to the group
like myself.

I think the folks at Universal Radio are the ones that are
confused. The dimensions I used for the RP-F11 in my first
e-mail came from this page:

http://www.universal-radio.com/catalog/portable/RPF11.html

which are "5.1 x 3.1 x 1.1 inches" or 17.391 cubic inches.

But, like you discovered, another click to this page:

http://www.universal-radio.com/catalog/portable/RPF11s.html

reveals another set of dimensions which are
"7.8 x 4.5 x 1.325 inches" or 46.5075 cubic inches, which
completely blows it out of the water as being an UL radio.

So, I dug through Fibber McGee's closet and found my very
own RP-F11 and measured it. Here are my findings:

7.625 x 4.5 x 1.25 inches, or 42.89 cubic inches.

Bottom Line - NOT QUALIFIED as an Ultralight.

So, once again, sorry for making a mountain out of a
molehill. I'm just happy that all of this got me motivated
to dig my RP-F11 out of the "Radio Archives."

BTW - The RP-F11 was also sold as the Kenwood R-11 in
certain parts of the world.

Thanks, everybody, for humouring me and not flaming me
as would have happened in other not-to-be-named radio
reflectors.

73 & Great DX,

Steve N5WBI
Houston TX


new categories for ultralights ?

Carl DeWhitt
 

I wonder what you guys might think of this.Some radios such as the
GRUNDIG G-6 are ultralight in size and weight but are not considered
ultralights because of special features such as SSB ability.How about
2 new ultralight categories.Basic-which would include Sony SRF-59 and
E-100 and Advanced which would include radios that had special
features like SSB or a built in MP3 recorder .The Grundig G-6 would
fall in this category.What do you think ?


Re: Toshiba RP-F11

bbwrwy
 

I've owned a Toshiba RP-F11 since the 1980s, and it's a very good
receiver. When manufactured it was probably the best receiver of its
type, much better than the inferior, but better selling Sony 7600
series of the period. About the size of a Grundig Yacht Boy 400, it
certainly doesn't fit the definition of a ultra light receiver.

Richard Allen.


Toshiba RP-F11 was E100 Images

John H. Bryant <bjohnorcas@...>
 

Steve,

I'll defer the response to your kind offer to Gary when he returns. He is really the one who keeps up with various models and contenders..... I have more than enough to say grace over handling the Firsts and Records plus part of the Awards program.... we are approaching 100 awards conferred in the first two weeks of the existence of the program :>)

After some more thinking, I may have spoken too quickly in reading the Definitions Committee's mind about Double Conversion being beyond the Pale in Ultralighting. I know that was discussed as one of the attributes of a "enthusiast radio," but on further thinking, it may not be a deal killer, like SSB is.  One other criteria that was discussed a great deal and largely followed was "commonly available" when recognized for Ultralight use.  That generally means a current model or recent past model... commonly available on ebay and the like. 

I note that the RP-F11 is discontinued..... There are none currently available on ebay and one sold in the past month.  I'm concerned about size, too.  You quoted measurements just within the 20 cu inches, Steve.... and yet the Specs on the Universal page that you referenced state a size far larger than Ultralight limits:

Speaker Size 3 Inch (77 mm)
Output Power 700 mW
Antenna System AM Ferrite bar and FM/SW telescopic whip
PHYSICAL
Size
7.8 x 4.5 x 1.325 inches (198x116x34 mm)
Weight1.4 Lbs (630 g)

Looking at the pictures, if that is a 3" speaker, the Universal dimensions seem reasonable.  Are we talking about the same radio??? I'll bet I've made a model error some way.

A bit confused in Washington state :>)

John B.


 





At 11:26 PM 7/30/2008 +0000, you wrote:

John,

Thanks for the clarification. I had printed out the definitions page
for personal reference. I saw the reference to "selectable IF filters"
but did not see any references to dual conversion (unless that means
the same thing).

I continue to be amazed by these UL radios. What used to take an
entire tabletop can now be put into your shirt pocket. Wow!

Again, thanks to you and to Gary who responded to my query about
the RP-F11.

Has anybody come forward with reviews of any of the radios listed on
the "Potential UltraLight Contenders" page? I have 5 of them - the
Kaito
WRX911, the Tecsun R9702, the Degen DE312, the Tecsun DR-910, and
the Grundig 300. Not that I have tons of time to devote to writing the
reviews, but maybe I could do at least one or two of the group's "Most
Wanted" if you could let me know what they are ...

73,

Steve N5WBI
Houston TX

__.


Re: MW Image Discovered on E-100

Steve Ponder N5WBI <n5wbi@...>
 

John,

Thanks for the clarification. I had printed out the definitions page
for personal reference. I saw the reference to "selectable IF filters"
but did not see any references to dual conversion (unless that means
the same thing).

I continue to be amazed by these UL radios. What used to take an
entire tabletop can now be put into your shirt pocket. Wow!

Again, thanks to you and to Gary who responded to my query about
the RP-F11.

Has anybody come forward with reviews of any of the radios listed on
the "Potential UltraLight Contenders" page? I have 5 of them - the
Kaito
WRX911, the Tecsun R9702, the Degen DE312, the Tecsun DR-910, and
the Grundig 300. Not that I have tons of time to devote to writing the
reviews, but maybe I could do at least one or two of the group's "Most
Wanted" if you could let me know what they are ...

73,

Steve N5WBI
Houston TX


loggings on SRF-M37V

Allen Willie
 

 
 
  Pre-sunrise Dxing this morning with the SRF-37V yielded a couple of catches.
 
Jul 30/08 - 1650 khz - 6:30 UTC  KWHN - Fort Smith, Arkansas w/ newstalk radio.com and ID  by man ; fair (My first Arkansas station on ultralights State # 21)
 
Jul 30/08 - 1200 khz - 5:50 UTC - Unidentified w/ spanish or portugeuse vocals and island type music; fair
 
Any ideas guys on the 1200 khz ? , usually I only hear WOAI or CFGO Ottawa here on 1200. The mystery station was in and out for about 20 minutes but no ID heard, anyone else in the Northeast hear this last night ?
 
 
73
Allen Willie
St. John's, Newfoundland
 
 


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Re: MW Image Discovered on E-100

John H. Bryant <bjohnorcas@...>
 

Steve,

Gary is on vacation and I'm taking the "general ultralight questions" while he is gone.  In reference to your question about the Toshiba RP-F11, the general concept of Ultralight DXing is to limit ourselves to "entertainment grade" pocket portables to emphasize DX challenge and DXer knowledge/skill rather than the equipment. The Definitions Committee needed to find a way to separate "enthusiast radios" from "entertainment grade".... Obviously some of the mega-buck ICOM hand-helds, the smallest of which meet our size requirements, are enthusiast radios. Its the gray area in the middle that they found difficult to decide.  Finally, looking at the SRF-59 as the ancestor receiver for this hobby, but accepting digital dials as now being the norm in entertainment grade gear, too, they decided that the capabilities that denote non-compliant "enthusiast grade" in hand-held portables is SSB capability (a huge advantage in TA and TP reception) and double conversion. So the nifty G6 from Grundig is eliminated (SSB), as is the RP-F11 that you mentioned (double conversion.)

Honestly, there are those of us not on the Committee (like me) who think that the E100 with digital dial and 1 kHz. resolution (the latter a real boon in TA/TP work) is already over the line into enthusiast radios, despite being single conversion and no SSB.... However, that decision was made long ago and won't be rescinded... and I might point out, I own a whole double handful of E100s... and love them!

There will always be the desire on most of our parts (including mine) for a better receiver, but still within the bounds of Ultralighting... I hope that we all keep looking. 

Steve, you might also consider getting into the Unlimited Class of modified Ultralights... there actually are limits to the modifications allowed (See Definitions in the Ultralight File @ DXer.ca), but its the way that I relieve the frustration of limited equipment.... and messing with these things is reactively lo-tech, inexpensive and loads of fun.

Thanks for asking!

 

John B.
Orcas Island, WA, USA
Rcvrs: WiNRADiO 313e, Eton e1, Ultralights
Antennas: Two 70' x 100' Conti Super Loops, West and Northwest



At 04:55 PM 7/30/2008 +0000, you wrote:

Gary,

Thanks for the great info!

The 570/1480 image problem, to the best of my knowledge, is the only
such problem I've encountered with my radios here in Houston. Looking
at KLVL-1480's antenna patterns, I see that I'm directly in their
"gun-sights" for both day and night. That may explain a lot of why
they're such a pest.

Otherwise, the E-100 has turned out to be a great little radio. I still
haven't had a lot of time to give it a full test, though. Maybe this
weekend (?).

Do you know of any ultralights that employ dual conversion on
mediumwave?

Also, I have a Toshiba RP-F11 that measures 5.1 x 3.1 x 1.1 inches
(17.391 cu. in.). Would it be considered an ultralight? A good
picture can be found at:

http://www.universal-radio.com/used/UP86lrg.jpg

73 & GREAT DX,

Steve N5WBI
Houston TX


Re: MW Image Discovered on E-100

Steve Ponder N5WBI <n5wbi@...>
 

Gary,

Thanks for the great info!

The 570/1480 image problem, to the best of my knowledge, is the only
such problem I've encountered with my radios here in Houston. Looking
at KLVL-1480's antenna patterns, I see that I'm directly in their
"gun-sights" for both day and night. That may explain a lot of why
they're such a pest.

Otherwise, the E-100 has turned out to be a great little radio. I still
haven't had a lot of time to give it a full test, though. Maybe this
weekend (?).

Do you know of any ultralights that employ dual conversion on
mediumwave?

Also, I have a Toshiba RP-F11 that measures 5.1 x 3.1 x 1.1 inches
(17.391 cu. in.). Would it be considered an ultralight? A good
picture can be found at:

http://www.universal-radio.com/used/UP86lrg.jpg

73 & GREAT DX,

Steve N5WBI
Houston TX


Re: Quality Control for the SRF-59

Russ Edmunds <wb2bjh@...>
 

Same is true for the regular SRF39. The one I have is deaf on FM-local, hears locals ono FM-DX. AM is not as good as either the SRF-59 or the Sangean DT200-VX.

 

I think I'll have to package it up and send it out to Gary to look at. If it's a dud and not really fixable then he can keep it for parts ;-}

Russ Edmunds
Blue Bell, PA ( 360' ASL )
[15 mi NNW of Philadelphia]
40:08:45N; 75:16:04W, Grid FN20id

FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15'
AM: Modified Sony ICF 2010 barefoot



Re: MW Image Discovered on E-100

Gary DeBock
 

Hi Steve,
 
     Glad that the info helped.  Regarding your Toshiba portable,  the Ultralight Classifications file posted on dxer.ca can give you specific information on whether your unit may qualify as an Ultralight, and a volunteer Committee of three (Kevin Schanilec, Joe Miller and Gil Stacy) makes the final decision to approve or disapprove a model.
 
                          73,  Gary
    




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Re: Quality Control for the SRF-59

Gary DeBock
 

Hi John,
 
     There is a notorious quality control issue with new SRF-59's, which has been well documented since November.  The main problem is sloppy AM-band alignment at the Chinese factories, which makes the typical new SRF-59 less sensitive than the engineers designed.
 
     I have performed about 50 free SRF-59 alignments for various hobbyists in an effort to correct this problem, and would be happy to align yours also, if you can send it to Gary DeBock, P.O. Box 1313, Puyallup, WA 98371 (with $5 return postage).  The typical SRF-59 gains a major improvement in AM performance, once this alignment is performed.
 
     Our family is taking a 3-day vacation to Grayland, WA starting today, but feel free to send your package anytime, even if I can't respond by email temporarily.
 
                                73,  Gary DeBock 




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Quality Control for the SRF-59

John Cereghin <pastor@...>
 

I bought a second SFR-59 from K-Mart last week and it seems to be a bit of a turkey compared to my first one I got from Amazon.  The FM band is dead and the sensitivity is not as good as my Amazon SFR.  Using it with my Select-A-Tenna makes it work well enough but running barefoot, the K-Mart SFR is a bit deaf.  Seems  like there is a wide variation of quality with some SRFs.  Luckily, it is only $15 we are talking about, not like fretting over a deaf NRD-505 or something.  Can't complain, as I did get WFLF-540 Orlando on the K-Mart SRF last night, so it is useable, and I didn't buy it for FM DXing.  But a third SRF might be in order as I wanted a back-up.

John Cereghin
Smyrna DE


Re: MW Image Discovered on E-100

bbwrwy
 

A few days ago I discovered I could hear KFXY-1640 on my E100 at 730
kHz during the day when it's running 10 kW. Thus far I've not found
another image.

Richard Allen


MW Image Discovered on E-100

Steve Ponder <n5wbi@...>
 

This evening while going through the MW band on my E-100,
I discovered an image of my local SS station on 1480 kHz
showing up on 570 kHz (2 x 455 kHz + 570 kHz = 1480 kHz).

This image did not show up on either my Sangean DT-400W or
my Sangean DT-200V. I did not try my Sony SRF-M37V.

I have noticed this before with my Radio Shack DX-399 (a
rebadged Sangean ATS-606AP) and my Grundig YB-305.

Does the circuitry of the DT-400W and the DT-200V use a
different IF frequency?

Just curious ...

Thanks & 73,

Steve N5WBI
Houston TX


Re: MW Image Discovered on E-100

Gary DeBock
 

Hello Steve,
 
     The Sangean DT-200V, DT-200VX and new DT-400W models have exceptional image rejection, and it is unlikely that you will ever hear images on stock units.  The only way I was able to hear an image on one was to hot-rod a DT-200VX with a 6.25" loopstick, making it sensitive enough to hear a weak image of my local 1450 pest on 550 (IF is 450 kHz).
 
    The E100 has no such image protection, and it readily produces images of strong locals 910 kHz below their fundamental frequencies (IF of 455 kHz).  The SRF-T615 and SRF-M37V both have images twice their 450 kHz IF's, as do the DT-210V and DT-180V models.
 
     The only image-proof (at least on MW) Ultralights are the Sony CXA1129N family of analog AM-FM portables...  the SRF-59, SRF-39FP, SRF-49, etc.  Their unique mixing scheme makes it impossible to produce images on MW frequencies-- even with monster loopsticks.  They are also generally resistant to overload-- except with monster loopsticks  :>)
 
                                                                         73,  Gary 




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loggings

Allen Willie
 

Hi Guys,

Caught on the SRF-M37V last night

Jul 29/08 3:03 UTC 1458 khz - Sunrise Radio, London England w/woman
reading some news in English , ID; fair **(new)**

Jul 29/08 3:27 UTC 1530 khz - Voice Of America Relay via Pinheira,
Sao Tome w/ VOA programming ; good


73

Allen Willie
St. John's, Newfoundland
SRF-M37V barefoot


G6

lrdheat
 

Dear folks,

 

My Grundig G6 is identical in size to the E100. That it has ssb apparently disqualifies it as an ultralight...perhaps this can be reconsidered. In any case, it is a tad less sensitive (daytime testing) than the E100, but even more selective. At night, the selectivity really stands out. Stations 10KHz away from a local come in with ease; on 1500KHz, for example, I can listen 10 KHz away from a local on 1490 KHz practically all 360 degrees of a circle instead of on a limited sweep of the circle via nulling (the Sangean DT200VX, in contrast,cannot even discern the presence of a station on 1500 KHz under the slop from the local on 1490 KHz on any part of the 360 sweep). The G6 has the same 1KHz display inaccuracy...to tune in, say, 1310 KHz, one would tune in 1311 KHz on the G6. There are some nuisance tones that appear on an occasional frequency...740 KHz, for example on mine...at night, these tones are much more in the background. At night, due to it's selectivity, it is a lot of fun to tune around. Last night, I got both coasts from Laredo, TX: KNX 1070 KHz, Los Angeles, and WBZ 1030 KHz, Boston. Due to it's selectivity, I would imagine that it would be a candidate for modifications (Gary!!!)



Re: New Ultralight Logging.......My 30th Latin Station Heard on ULRs............

Carl DeWhitt
 

--- Rob:
Nice catch ! The way you are going,you may hit 500 stations logged on
ultralights by September !
Carl DeWhitt

In ultralightdx@..., Robert Ross <va3sw@...> wrote:

Hi Guys:

Managed to hear another New Station for the Ultralight Log Early
this
morning. And.....it is my 30th LATIN Station logged using Ultralight
Radios!!

Radio Used for this logging was the SONY SRF-T 615 Barefoot.

73..........ROB.

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
960 Radio Reloj CUBA July/29/08 0122 EDT Spanish FAIR
Heard Under WFIR. Clock Ticks and News Items in Spanish @0122 EDT
"RR" in Morse Code on the Minute.

RELOG...But NEW to ULR Log. (Station # 456 On ULR) (30th LATIN on
ULR)
ROSS, ONT.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Robert S. Ross VA3SW
Box 1003, Stn. B.
London, Ontario
CANADA N6A5K1

Antique/Vintage Radio Enthusiast
Amateur Radio Stations VA3SW/VE3JFC

Defy Physics.....Play Table Tennis!! (Ping Pong with an Attitude)
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