Date   

A few new ones tonight, and finally TWO new states!

Rick Garrett <IndyRick@...>
 


I FINALLY broke my new state drought tonight. :)

1370, WCOA, Pensacola, FL.  Really nice signal into Indianapolis for about 15 minutes tonight at 8:20 local, till fade out about 8:38

1220  KPJC,  Salem, Oregon.  I had high hopes for this one, as a friend had picked them up about a week ago in Indy.  Tickled to death with this one.

Also logged tonight:

600  WSNL, Memphis, TN

1160 WYLL, Chicago, IL.

Happy weekend, all!









Re: Return of the Ultralight TP's

Gary DeBock
 

Jim,
 
Actually the 7.5" loopstick PL-380 has already received multiple LW TP's in its current configuration, including Radio Rossii on 180 and 279 kHz. The model could probably receive several more LW TP's without further changes, if I were motivated to go after them.
 
There is a 6.5' (side) LW-optimized PVC box loop already in the back yard also, in case there was a need for any more LW gain. My own preference is to avoid hard-wiring any large external accessories to Ultralight radios, in order to keep them as portable as possible. Inductively coupling the large PVC loops to Ultralights provides the maximum gain, freedom and convenience, in my opinion. But I respect other ideas.
 
73, Gary   
 

In a message dated 4/16/2010 10:45:45 A.M. Pacific Daylight Time, jkearman@... writes:
 

Gary,

That reminds me. I was looking up LW stations in WRTH. There are a bunch in Siberia, running about 100 kW. You'll be able to hear them. Not sure you can get enough wire onto a 7.5-inch rod and still have an effective antenna, but you might toss a toroid onto a PL-380 you've already hacked, and couple a loop into it. Make the winding 2700-3500 uH, measure the inductance of the loop (no tuning cap) and make another winding of the same inductance. Hook it up with speaker wire. LW BC is a lot of fun. Signals tend to remain steady for 30 minutes or more, and can be quite strong. Plus, you don't have as much interference from adjacent stations! The PL-380 works just as well at LW as MW, and I'd like to see more LW ULR activity.

73,

Jim, KR1S
http://kr1s.kearman.com/ 


Tecsun PL-360 Survives Full Disassembly

Gary DeBock
 

Hello All,
 
Prompted by an interest in the Si4734 chip firmware in the Tecsun PL-360 model (along with Scott), a full disassembly of the compact model was undertaken today. Tecsun's reputation for engineering technician-friendly disassembly methods played a large part in the decision, which would have been much tougher to make with a Kchibo or Degen model (neither of which have Tecsun's high reputation).
 
The compact model did indeed prove to be quite technician-friendly, and although the Si4734 chip itself was located under a 4-tab soldered shield on the back of the digital board, it was not too much trouble to remove the shield and take a photo of the Si4734 chip, posted below.
 
For those interested, and 8-photo album of the PL-360 disassembly has been uploaded to the Ultralightdx photo site, along with descriptions of the various components. The PL-360 has now been fully reassembled and checked out, having managed to survive the adventure. Tecsun's high-quality construction has once again saved the day :-)
 
73, Gary DeBock (in Puyallup, WA, USA) 
 
                                        


Re: Spanish Sports heard on 1510 kHz

robert ross
 

ferrite61 wrote:
 

Right now at 2000 EDT I am clearly hearing Spanish Sports on 1510 kHz, I believe this is baseball. Signal is 35: 12 on the pl310 Hearing mentions of Carl Crawford. This could be WWZN out of Boston, but I am not aware of Spanish Broadcasting on this station. Its not tuning normally, indicating a direction almost due North for best reception. This is def. A Tampa Bay vs. Boston baseball game and English is availible on WTIC 1080. Itws 2005 EDT and will report if I hear a call sign... so far none yet.

Paul S. in CT


Paul.......Most likely 1510 WRRD Waukesha, WISCONSIN with ESPN ESPORTES in Spanish......

73...ROB VA3SW

Robert S. Ross
London, Ontario CANADA


Spanish Sports heard on 1510 kHz

ferrite61 <dxrx@...>
 

Right now at 2000 EDT I am clearly hearing Spanish Sports on 1510 kHz, I believe this is baseball. Signal is 35: 12 on the pl310 Hearing mentions of Carl Crawford. This could be WWZN out of Boston, but I am not aware of Spanish Broadcasting on this station. Its not tuning normally, indicating a direction almost due North for best reception. This is def. A Tampa Bay vs. Boston baseball game and English is availible on WTIC 1080. Itws 2005 EDT and will report if I hear a call sign... so far none yet.

Paul S. in CT


Re: 3 new ones at sunset last night, still stuck on 18 states :)

Rick Garrett <IndyRick@...>
 



WSAI is 1360 kc 5k 5k sportstalk fox clear channel communications
cincinatti ohio



Thank you for the correction.  I have it correct in the log, but I inverted the two when I was getting info from the web...thanks!


Re: 3 new ones at sunset last night, still stuck on 18 states :)

Rick Garrett <IndyRick@...>
 

Jim...I didn't!  Thank you for pointing that out...I thought it expired in October...wow...thanks!


On Fri, Apr 16, 2010 at 5:52 PM, jim_kr1s <jkearman@...> wrote:
 

Rick,

Congrats on the new ones. Don't know if you received my email. Your ham license expired in February.

http://www.qrz.com/db/N9GSU 

You still have time to renew!

73,

Jim, KR1S
http://kr1s.kearman.com/ 





Re: 3 new ones at sunset last night, still stuck on 18 states :)

wa8lcz
 

Hi Rick,

WSAI is 1360 kc 5k 5k sportstalk fox clear channel communications
cincinatti ohio
WCKY is 1530 50k 50k sportstalk espn clear channel communications
cincinatti ohio
they are owned by the same person and they keep switching formats

byron nr detroit

--- In ultralightdx@..., Rick Garrett <IndyRick@...> wrote:

Managed to snag 3 new stations last night.

WTDY, 1670, Madison, WI

WKSH, 1640, Milwaukee, WI

WSAI, 1530, Cincinnatti, OH

Have a great weekend, everyone!



--
Patchwork!
http://www.patchworkstringband.com

Patchwork on YouTube:
http://www.youtube.com/patchworkstringband

The Tenderloin Connoisseur:
http://breadedtenderloin.wordpress.com


Re: 3 new ones at sunset last night, still stuck on 18 states :)

jim_kr1s <jkearman@...>
 

Rick,

Congrats on the new ones. Don't know if you received my email. Your ham license expired in February.

http://www.qrz.com/db/N9GSU 

You still have time to renew!

73,

Jim, KR1S
http://kr1s.kearman.com/ 


3 new ones at sunset last night, still stuck on 18 states :)

Rick Garrett <IndyRick@...>
 

Managed to snag 3 new stations last night.

WTDY, 1670, Madison, WI

WKSH, 1640, Milwaukee, WI

WSAI, 1530, Cincinnatti, OH

Have a great weekend, everyone!



--
Patchwork!
http://www.patchworkstringband.com

Patchwork on YouTube:
http://www.youtube.com/patchworkstringband

The Tenderloin Connoisseur:
http://breadedtenderloin.wordpress.com


Re: 1629 3ABN Busselton heard in South Africa

jim_kr1s <jkearman@...>
 


--- In ultralightdx@..., "freetodx" wrote:

> 1560 0344 U.S.A. KGOW Bellaire TX

Good grief! They're a night-time pest here in Florida, but never imagined they could be heard in SA. Good work!

73,

Jim, KR1S
http://kr1s.kearman.com/ 


Re: Return of the Ultralight TP's

jim_kr1s <jkearman@...>
 

Gary,

That reminds me. I was looking up LW stations in WRTH. There are a bunch in Siberia, running about 100 kW. You'll be able to hear them. Not sure you can get enough wire onto a 7.5-inch rod and still have an effective antenna, but you might toss a toroid onto a PL-380 you've already hacked, and couple a loop into it. Make the winding 2700-3500 uH, measure the inductance of the loop (no tuning cap) and make another winding of the same inductance. Hook it up with speaker wire. LW BC is a lot of fun. Signals tend to remain steady for 30 minutes or more, and can be quite strong. Plus, you don't have as much interference from adjacent stations! The PL-380 works just as well at LW as MW, and I'd like to see more LW ULR activity.

73,

Jim, KR1S
http://kr1s.kearman.com/ 


Re: Return of the Ultralight TP's

jim_kr1s <jkearman@...>
 


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

> These "big guns" will never win any prizes for rarity, but after the
> extended solar meltdowns, it's probably best to be thankful for what we have :-)

Congrats on the loopstick loggings! Iran didn't give me enough audio last night, but I learned something. The night before, when Iran was stronger, I noticed WBZ-1030 in Boston was very loud about 30 minutes before my sunset. The path to Iran goes just off the New England coast. Last night, WBZ was buried under a Cuban, and never got very strong through the night. When WBZ is competing well against Cuba at my sunset I'll know it's a good night to look for the Mideast at their sunrise. I wonder if you've found similar pointers out there?

73,

Jim, KR1S
http://kr1s.kearman.com/ 


Re: Tecsun PL-360 3" Loopstick Testing

jim_kr1s <jkearman@...>
 


--- In ultralightdx@..., D1028Gary@... wrote:
>
> With analog models like the SRF-59
> and the R9012 you can actually tune the radio simply by tuning the 9' loop
> (when their distance is within 5 feet), but the DSP Ultralights typically
> receive only on their tuned frequency, no matter what frequency the huge
> loop selects.

Analog radios borrow part of the ferrite rod for the local-oscillator (LO) inductor. You are tuning the radio with the antenna, by "pulling" the LO.  DSP radios digitally synthesize the LO; there are no tuned LO circuits. You could use a separate inductor for the LO, but that only moves another weak link into position, the front-end circuitry. Portables are designed to have gain commensurate with their antennas, and will "saturate" on strong signals.

DSP radios will overload too,. The effect is hard to discern from the usual splatter by adjacent stations. You can demonstrate it with some simple test equipment (two signal generators and calibrated attenuators). Where several strong signals are close together, the radio may sound noisy between stations, because of intermodulation . Shielding the radio in such a way that you can still read the meters (screen wire) or simply taking the radio farther away from the location, will eliminate those stations as possible causes of the problem. Location location location. This article  simply explains the causes.

This PDF  explains how ARRL  measures intermodulation distortion (IMD).  It's more easily done when you can disable AGC, but the article further explains what's happening in our radios in the presence of multiple strong signals. Intermodulation is the product of two or more  strong signals. If you can reduce the strength of one or more of them, you may eliminate the problem.

One of the most-effective ways to reduce the problem is to have as much selectivity as possible before any amplifying stages. That's one reason I persistently insist the antenna should resonate across the band. A higher-inductance but non-resonant antenna may increase indicated signal levels, but lead to IMD problems in areas where there are multiple strong, nearby stations. They might work great where there aren't many strong stations, but crash and burn in places where there are.

73,

Jim, KR1s
http://kr1s.kearman.com/ 


Re: 1629 3ABN Busselton heard in South Africa

bbwrwy
 

Gary:

Thanks for the report. The distances of your DX reception always amazes me.

Here at my QTH, KGOW is a night-time pest. Despite being 804 km away, it usually owns 1560 from sunset to sunrise.

Good DX.

Richard.

Richard Allen
36°22'51"N / 97°26'35"W
(near Perry OK USA)


1629 3ABN Busselton heard in South Africa

freetodx
 

Hi Guys
 
A brief family holiday/dxpedition to the Steenbras River Mouth  and Betty's Bay  included the reception of two interesting stations from a South African perspective : 
 
1629 1755 AUSTRALIA 3ABN Busselton WA w EE religious programming including "Lift Him Up" at 1830 UTC - fair peaks. The most consistent of the WA X-band stations heard that evening on the 8th April (A personal/South African first).
 
The 400 watt signal was fairly consistent and made it through over a distance of 8 500 kilometres to Betty's Bay with surprising peaks.   A brief audio clip of the reception is available here 
 
1560 0344 U.S.A. KGOW Bellaire TX with a station id slogan as "15-60 The Game". Commercials aired at 0502 UTC included "Venom Energy Drink" and "The Matt Swanson School Of Golf" heard on the 9th April.
 
A recent nighttime power increase from 1 kw to 15 kw with a favourable nighttime antenna pattern would probably help explain the recent reception for the first time (over a distance of 13 936 kilometres).
 
Receiver : Sony SRF-M37V
 
Antenna : 60 metre BOG
 
3ABN Busselton WA 1629 Installation
 
The recent installation of 3ABN's first AM expanded band narrocaster just north of Busselton in Western Austalia provided an opportunity to post a brief article from a broadcasting perspective.  CoDirector Rosemary Malkiewycz kindly included some background info in a QSL reply.  The post includes some interesting pics of the set up and is available here    


Re: 1629 3ABN Busselton heard in South Africa

Gary DeBock
 

Hello Gary,
 
Congratulations again on your success during the DXpeditions to Steenbras River Mouth and Betty's Bay, with the very interesting descriptions provided by links.
 
Your reception of both 1629-3ABN and 1560-KGOW is amazing, and reminds us all of what a skilled DXer can accomplish with a simple ULR on an ocean beach. Thanks for sharing your DXing impressions with us, and good luck for more breakthrough loggings.
 
73, the other Gary D.
 

In a message dated 4/16/2010 6:56:26 A.M. Pacific Daylight Time, freetodx@... writes:
 

Hi Guys
 
A brief family holiday/dxpedition to the Steenbras River Mouth  and Betty's Bay  included the reception of two interesting stations from a South African perspective : 
 
1629 1755 AUSTRALIA 3ABN Busselton WA w EE religious programming including "Lift Him Up" at 1830 UTC - fair peaks. The most consistent of the WA X-band stations heard that evening on the 8th April (A personal/South African first).
 
The 400 watt signal was fairly consistent and made it through over a distance of 8 500 kilometres to Betty's Bay with surprising peaks.   A brief audio clip of the reception is available here 
 
1560 0344 U.S.A. KGOW Bellaire TX with a station id slogan as "15-60 The Game". Commercials aired at 0502 UTC included "Venom Energy Drink" and "The Matt Swanson School Of Golf" heard on the 9th April.
 
A recent nighttime power increase from 1 kw to 15 kw with a favourable nighttime antenna pattern would probably help explain the recent reception for the first time (over a distance of 13 936 kilometres).
 
Receiver : Sony SRF-M37V
 
Antenna : 60 metre BOG
 
3ABN Busselton WA 1629 Installation
 
The recent installation of 3ABN's first AM expanded band narrocaster just north of Busselton in Western Austalia provided an opportunity to post a brief article from a broadcasting perspective.  CoDirector Rosemary Malkiewycz kindly included some background info in a QSL reply.  The post includes some interesting pics of the set up and is available here    


Return of the Ultralight TP's

Gary DeBock
 

Hello All,
 
It's certainly nothing to shout about, but after the dreary transoceanic conditions of the past week, four fairly healthy TP's showed up on the stand-alone 7.5" loopstick PL-380 this morning.
 
594-JOAK was the strongest of the group with NHK news at 1303, having a signal level approaching its fall strength. 747-JOIB was over and under the 750-KXL splatter around 1301 (mostly under), while both 1566-HLAZ and 1575-VOA Thailand had moderate audio around 1258.
 
These "big guns" will never win any prizes for rarity, but after the extended solar meltdowns, it's probably best to be thankful for what we have :-)
 
73, Gary DeBock (in Puyallup, WA, USA)    


Re: Tecsun PL-360 3" Loopstick Testing

Gary DeBock
 

Hi Stephen,
 
All of the AM signal comparisons in the Shootout and Review articles are performed under daytime DX conditions, so that stable ground wave signals are used to judge relative sensitivity and selectivity between ULR models. Trying to compare unstable AM signals at night would be asking for trouble.
 
Fortunately here in Puyallup, WA there are no 50 kw locals, but we do have a Korean-language graveyard pest (1450-KSUH) about 2 miles from here, a 50 kw Tacoma slopper (KKOL-1300) about 6 miles away, and a 5 kw Spanish-language pest (1360-KKMO) about 8 miles away. But none of these really cause the PL-380 (on its 1 kHz DSP setting) to overload here, Stephen. At night, stations can easily be heard 10 kHz up and down from each of these stations-- so I'd agree with Scott that you probably have an issue with your individual PL-380.
 
All of the Si4734 DSP models typically have fairly good resistance to overload, in comparison to the earlier-design ULR's that preceded them. Most traditional Ultralights overload badly when inductively coupled to the 9' box loop here, but the Si4734 models are highly "crunch-resistant," and behave very well (even with the RF onslaught). With analog models like the SRF-59 and the R9012 you can actually tune the radio simply by tuning the 9' loop (when their distance is within 5 feet), but the DSP Ultralights typically receive only on their tuned frequency, no matter what frequency the huge loop selects.
 
73, Gary DeBock (in Puyallup, WA)   
 
          
 

In a message dated 4/15/2010 1:38:43 A.M. Pacific Daylight Time, pianoplayer88key@... writes:

Now, a quick reply to Gary's post, as I don't want to make two separate posts....

Any chance you could do daytime comparisons when the signals are more stable? Also, any chance that you could go to somewhere within a km or two of some of your 50kW locals and check the performance there? I'm about 6-10 miles away from a couple locals, and the RSSI readings when between channels are unacceptable at around 30-40 dBu. Inside a car in a rural area (where weaker signals would be attenuated on top of that), they read 15 dBu in between channels.
As for backyard space, I probably have about 40 feet (north-south) by 120 feet (east-west) or so of area where I could erect temporary antennas. Also I'm probably about 5 miles away from a commuter airport, and not exactly in the flight path of the international airport 15 miles to the west, so I do have a little bit of room to elevate an antenna. (I would be a bit wary of erecting a full-wavelength guyed tower for 153 kHz, though.)


Re: Tehran tentative

jim_kr1s <jkearman@...>
 


--- In ultralightdx@..., Paul Logan wrote:
>
> Hi Jim,
>
> if you want post / send a recording I hear Farsi / Persian all the time.

Arrgh, I dumped it, but thanks. There was a lot of noise and her voice was monotonic and low in pitch. Just couldn't process it enough to get anything clear. It sure wasn't Portuguese, Arabic or French. Right after TOH there was some kind of gong, not very loud (their modulation seemed low and lacking high frequencies), like something that would separate news items or signal the beginning of a program. Sistan and Baluchestan province (the poorest and most undeveloped region in Iran, according to Wikipedia) has mostly Balochi speakers, and I'm wondering if that was the language, though it's the Iranian national network, so probably Farsi. I'm going to look for it earlier tonight, try to catch it at their sunrise.

73,

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