Date   

Re: Private emails

Jay <jaypolicow@...>
 

I receive the digests I just clicked on your name at tha top of your message and Outlook opened with your email address in it.

Jay

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

Does anybody know how to send private emails between group members under the new Yahoo user interface?


Private emails

Gary Kinsman
 

Does anybody know how to send private emails between group members under the new Yahoo user interface?


Re: "Alive" Older PL-380's-- Thanks to Bruce Bacon and Payman Arabshahi

Richard Jones
 

I would be up for the challenge, and will pay any necessary expenses. I will characterize the current noisy setup in some repeatable way, do the transplant, then redo the characterization for comparison. I'll probably do the test in an available rf shield room to be sure I'm hearing only the radio.


Newfoundland Ultralight Radio Logs Dec 12

Allen Willie
 

Hello To All

It's been a bit of a dryspell for new catches here during the past few weeks. Two new entries for the Ultralight logbook early this morning prior to sunrise.

 

1320 - KOZY - Grand Rapids, Minnesota 9:40 UTC 12/12/13 w/ "The Fun Never Stops, 13-20 KOZY " ID various oldies songs by Johnny Rivers & Carly Simon

Ultralight Station # 1217

 

1130 - KTCN - Minneapolis, Minnesota 10:05 UTC 12/12/13 w/ "Twin Cities Newstalk " ID's, weather, news items ( heard under WBBR New York )

Ultralight Station # 1218

 

Receiver: SRF-M37W barefoot

 

Good DX

Allen Willie VOPC1AA

Carbonear, Newfoundland 47'44.15N 53'13.46W


Re: Desktop antenna !!!!

Michael <michael.setaazul@...>
 

WARNING - Using inferior rubber bands will result in
inacceptable reception parameters and permanent
exclusion from uldx groups...

Michael
UK
.
.
.

:-)

----- Original Message ----- From: kc8iqz@earthlink.net

Looks like the rubber band you get holding together stalks of broccoli. Great idea.


Re: Desktop antenna !!!!

Mike Westfall <mwdlanm@...>
 

If I recall correctly, that's exactly what it is.

--
Mike Westfall
Los Alamos, NM
US AM Database, updated daily: http://mesamike.org/radio/cdbs/amdb.mvc
My Logbooks: http://dxlogbook.gentoo.net/?account=mikew
Reception report and QSL manager for KRSN 1490


On Wed, Dec 11, 2013 at 12:32 PM, <kc8iqz@...> wrote:
 

This looks like the rubber bands you get when purchasing broccoli.  Great idea....


Gary KC8IQZ



Re: Desktop antenna !!!!

kc8iqz@...
 

This looks like the rubber bands you get when purchasing broccoli.  Great idea....


Gary KC8IQZ


Re: Desktop antenna !!!!

kc8iqz@...
 

Looks like the rubber band you get holding together stalks of broccoli.  Great idea.


Puyallup, WA Ultralight TP's for 12-11

Gary DeBock
 

Hello All,
 
 
Four anemic high band Asians took turns producing fair audio in and out in the frozen back yard here just prior to 1600, with the low band staying in a deep freeze. 1503-JOUK, 1566-HLAZ, 1575-VOA and 1593-CNR1 all hung around for about a half hour from 1530-1600, in and out with rapid fading, with none of them showing any real staying power.
 
 
All of these frequencies have some degree of domestic splatter here, and the high band Asians didn't fare too well against it this morning. At least they do show some signs of coming out of the recent deep freeze, like the back yard here (26 degrees, with fog, at 1600UT).
 
 
73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)
7.5" loopstick Tecsun PL-380 Ultralight +
12" Medium Wave FSL antenna
 
 
 
  


TIS/HAR List Update

Phil Bytheway <phil_tekno@...>
 

Folks,
 
Today I'm starting on the update to the 2011 TIS/HAR list. It will take me a while to go through the FCC stuff.
 
You can help by noting any TIS/HAR stations you are hearing and reporting it to this eGroup. That way I can indicate in the updated list that the station has been heard.
 
I should have the updated list done in a month or so.
 
Please help me make this the best list ever.
 
Thanks,
 
Phil Bytheway
IRCA Goodie Factory
Seattle WA
Drake R-7 / KIWA Loop


Re: Desktop antenna !!!!

robert ross
 


On 2013-12-10, at 10:01 AM, Mike Westfall wrote:

 

This is how I keep my radio attached to my RS 15-1853 Loop:

http://mesamike.org/radio/SRF-M37V/m37v-loop.jpg

--
Mike Westfall
Los Alamos, NM


Mike..... what a great way to prove the Old Theory of "Keep it Simple!!!"  .....And a cheap fix to a common ULR Dxing problem. Thanks for the advice. I'm looking for a Rubber Band right now!!

73..ROB VA3SW

Robert S. Ross
London, Ontario CANADA


Re: Desktop antenna !!!!

Mike Westfall <mwdlanm@...>
 

This is how I keep my radio attached to my RS 15-1853 Loop:

http://mesamike.org/radio/SRF-M37V/m37v-loop.jpg

--
Mike Westfall
Los Alamos, NM
US AM Database, updated daily: http://mesamike.org/radio/cdbs/amdb.mvc
My Logbooks: http://dxlogbook.gentoo.net/?account=mikew
Reception report and QSL manager for KRSN 1490


On Fri, Nov 8, 2013 at 12:45 PM, kevin asato <kc6pob@...> wrote:
 

The jack can be used to connect to the radio and can also be used to passively couple a wire antenna to the radio. The manual for the Terk does mention it.
73,
kevin
kc6pob


From: Stan Horzepa <stanzepa@...>
To: ultralightdx@...
Sent: Thursday, November 7, 2013 6:19 PM

Subject: Re: [ultralightdx] Desktop antenna !!!!

 
Hi Steve,

The Terk does have an output jack and includes a cable to connect the jack to radios with external antenna connectors.

I have not used the Radio Shack Loop, so I cannot compare it to the Terk.

You're welcome!

73,

Stan, WA1LOU

On 11/7/13, 8:33 PM, Stephen Ponder wrote:
Stan,

I've been reading your comments on the Terk Loop. I have the Radio Shack AM Loop (Model 15-583, if I recall). I don't know how long I've had it, but I've used it with several portable radios with pretty good results.

Does the Terk AM Loop have an output jack on it for connecting it to a radio?

The RS Loop has a 1/8" jack on the rear of its base so that it can be connected by means of a mono patch cord (insulated ones work best) to any radio with an antenna input jack.

This is mainly how I use the RS Loop. I can place the Loop on a platter/lazy susan so it can be rotated for nulls, leaving the radio stationary, which makes it easier to tune.

Have you ever used the RS AM Loop before? I was wondering how the Terk compared to it.

One feature I like about the Terk Loop is that the tuning apparatus forms a "makeshift" ledge at the bottom of the loop against which small portable radios can rest. The RS Loop is smooth all around the inside of the loop, meaning that the radios will slide off with the slightest rotation of the loop.

Thanks for your review of the Terk Loop and for your columns in QST!

73,

Steve Ponder, N5WBI
Houston, TX
----------------------

On Nov 7, 2013, at 6:56 PM, Stan Horzepa <stanzepa@...> wrote:

 
Hi Brian,

I think you will be very happy with the Terk Advantage antenna whatever the price! Tonight I snagged a new one: KBGG on 1700 kHz in Iowa, 1100 miles away using the Terk.

73,

Stan, WA1LOU





"Alive" Older PL-380's-- Thanks to Bruce Bacon and Payman Arabshahi

Gary DeBock
 

Hello All,
 
A special thanks is in order to both Bruce Bacon (of Boise, ID) and Payman Arabshahi (of Bellevue, WA), who responded to the "Dead or Alive" Older Model PL-380 solicitation by donating early model PL-380's-- both of them completely alive and kicking. These contain the original version PL-380 digital board, which provides a perfect cure for those DXers who transplant a 7.5" Longwave loopstick into their newer-model PL-380's and find the digital noise to be irritating.
 
If any DXer performs the Longwave "Supercharging" loopstick transplant into a PL-380 and would like to use of these digital boards for optimal performance, please contact me directly. I received these PL-380's free from Bruce and Payman so I won't charge for them, but please make sure that you perform the entire Longwave loopstick transplant (and test out the radio) before asking for them. Since they are a valuable resource (and since swapping out the digital boards does require full disassembly of the radio), DXers who would like to use them can send their "Supercharged" Longwave PL-380's here for a free "follow up operation."
 
Thanks again to Bruce and Payman for their generosity in providing these donated PL-380's, and good luck to all of you who try out the PL-380 Medium Wave and Longwave "Supercharging" project!
 
73, Gary DeBock (in Puyallup, WA, USA)
 
     


Re: PL-380 Digital Noise Issue

Gary DeBock
 

 
Thanks for the translation of the PL-380 digital board's Si4734 DSP chip label.
 
Since the DSP chip is no longer shielded on recently-manufactured PL-380's, it will be a fairly simple matter to unplug the digital board, and check the chip label for any changes in the future.
 
73, Gary DeBock (in Puyallup, WA, USA)
  

-----Original Message-----
From: clackc
To: ultralightdx
Sent: Sun, Dec 8, 2013 8:28 am
Subject: Re: [ultralightdx] Re: PL-380 Digital Noise Issue

 
Looking at the  SiLabs datasheet 3420-BAN8-117  34=Si4734, 20= firmware revision 2.0. B= revision B Die,
AN8= internal code. 117 = Year and Workweek so 2011 and 17 Workweek. So it look like there still using the old Si4734-B20 chip not the newer Si4734-C40 firmware 4.0 or Si4734-D60 firmware 6.0.




Re: PL-380 Digital Noise Issue

clackc@...
 

Looking at the  SiLabs datasheet 3420-BAN8-117  34=Si4734, 20= firmware revision 2.0. B= revision B Die,

AN8= internal code. 117 = Year and Workweek so 2011 and 17 Workweek. So it look like there still using the old Si4734-B20 chip not the newer Si4734-C40 firmware 4.0 or Si4734-D60 firmware 6.0.





Re: PL-380 Digital Noise Issue

Gary DeBock
 

Andy,
 
<<<    That missing shielding doesn't just shield the oscillator circuitry, I'm pretty
sure that little square black chip above the watch oscillator is the SiLabs 4734
RF chip.   >>>
 
You are correct-- I recognize the size and shape of the Si4734 DSP chip from a full disassembly of the PL-360 model (detailed in our group photo section). The SiLabs software code on the "Newer Model" PL-380 (purchased in 2013) is "3420-BAN8-117." If Tyrone Willingham (one of the original Si4734 DSP chip designers) is still reading our group's messages as he was in 2009-2010, he can tell us which software version the new PL-380's are using.
 
I have no idea why Tecsun decided to remove shielding from this important component on the new PL-380 digital boards. In any case, this change doesn't seem to greatly affect Medium Wave performance with either the stock or 7.5" loopstick, but it does cause increased digital whine on the Longwave frequencies. The issue can be cured by swapping an "Older Model" digital board into a "Newer Model" PL-380 (an operation which was performed successfully here on a 7.5" Longwave loopstick PL-380 model this afternoon).
 
Longwave performance has never seemed to be a high priority with the Tecsun engineers, so I'm not surprised that they would try to cut costs by trying something that only degrades Longwave performance. For those who would like to try a 7.5" Longwave loopstick transplant into a "Newer Model" PL-380, though, the solution for top performance is now clear.
 
73, Gary DeBock (in Puyallup, WA, USA) 
 


 

-----Original Message-----
From: Andy Gardner
To: ultralightdx
Sent: Sat, Dec 7, 2013 3:53 pm
Subject: Re: [ultralightdx] Re%3A%20PL-380%20Digital%20Noise%20Issue%20%28Cont%2E%29


I just had a look at some higher resolution pics (thanks Gary!).

That missing shielding doesn't just shield the oscillator circuitry, I'm pretty
sure that little square black chip above the watch oscillator is the SiLabs 4734
RF chip.

So EPICFAIL for Tecsun.

I wonder if cutting a flat rectangular piece of shield material (slightly larger
than the silk screened rectangle - even a piece of fresh PCB would do) and
laying it over the top, soldering it to the existing shielding above then
tacking it to the top of the watch oscillator device would help solve the
problem? Theres a couple of through-holes on the earth plane to the right that
could have wires attached to go to the extra shield too.


On 8/12/2013, at 9:19 AM, rick jones wrote:

>
> Chances are that new oscillator "can" is singing like a canary.  It looks like
they originally used one that fit under the original shield. Instead of
fashioning a new shield, it looks like they just left it off. BIG mistake. It
would be exceedingly difficult to fashion a shield that covers the components
the way the original did. The traces have been silk screened and that would need
to be removed. Pretty risky business. Of course for those who have dug that far
in to their radio, nothing ventured, nothing gained! For me the risk/reward
ratio just doesn't justify the investment in time. I will however invest in new,
old stock if anybody finds it!
>
>



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Re: Re%3A%20PL-380%20Digital%20Noise%20Issue%20%28Cont%2E%29

Andy Gardner <ceo@...>
 

I just had a look at some higher resolution pics (thanks Gary!).

That missing shielding doesn't just shield the oscillator circuitry, I'm pretty sure that little square black chip above the watch oscillator is the SiLabs 4734 RF chip.

So EPICFAIL for Tecsun.

I wonder if cutting a flat rectangular piece of shield material (slightly larger than the silk screened rectangle - even a piece of fresh PCB would do) and laying it over the top, soldering it to the existing shielding above then tacking it to the top of the watch oscillator device would help solve the problem? Theres a couple of through-holes on the earth plane to the right that could have wires attached to go to the extra shield too.

On 8/12/2013, at 9:19 AM, rick jones wrote:


Chances are that new oscillator "can" is singing like a canary. It looks like they originally used one that fit under the original shield. Instead of fashioning a new shield, it looks like they just left it off. BIG mistake. It would be exceedingly difficult to fashion a shield that covers the components the way the original did. The traces have been silk screened and that would need to be removed. Pretty risky business. Of course for those who have dug that far in to their radio, nothing ventured, nothing gained! For me the risk/reward ratio just doesn't justify the investment in time. I will however invest in new, old stock if anybody finds it!


Re: PL-380 Digital Noise Issue (Cont.)

Richard Jones
 

Chances are that new oscillator "can" is singing like a canary.  It looks like they originally used one that fit under the original shield. Instead of fashioning a new shield, it looks like they just left it off. BIG mistake. It would be exceedingly difficult to fashion a shield that covers the components the way the original did. The traces have been silk screened and that would need to be removed. Pretty risky business and not even close to a "quick fix"! Of course for those who have dug that far in to their radio, nothing ventured, nothing gained! For me the risk/reward ratio just doesn't justify the investment in time. I will however invest in new, old stock if anybody finds it!


Re%3A%20PL-380%20Digital%20Noise%20Issue%20%28Cont%2E%29

Richard Jones
 

Chances are that new oscillator "can" is singing like a canary.  It looks like they originally used one that fit under the original shield. Instead of fashioning a new shield, it looks like they just left it off. BIG mistake. It would be exceedingly difficult to fashion a shield that covers the components the way the original did. The traces have been silk screened and that would need to be removed. Pretty risky business. Of course for those who have dug that far in to their radio, nothing ventured, nothing gained! For me the risk/reward ratio just doesn't justify the investment in time. I will however invest in new, old stock if anybody finds it!


ne558p

 

Great pictorial of the PL-380 breakdown. Thanks!

http://f1.grp.yahoofs.com/v1/0GajUtRYxo-4uqitEMtsYY3RNRZPwK0q_3HhDUjccfS-3PsWqtrjuIi170GlwDR7sYlizY9b_OQJLpPxZWBVzlujtpZJ/3%20Radios%2C%20Reviews%2C%20Manuals/PL-380%20inside.pdf


73, John in Hawaii

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