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Re: Tecsun PL-360 Commercial 200mm Plug-in Upgrade Antenna

Rik
 

I was surprised how strong the signals were with out either ferrite antenna plugged in.

I also wondered if he just glues short ferrite to each side of the factory antenna. From the picture, it does not look exactly centered, but that could be camera angle.  How ever it was done, it certainly improved the RSSI numbers and audio. - FARMERIK


Re: Tecsun PL-360 Commercial 200mm Plug-in Upgrade Antenna

Peter Laws
 

On Sat, Oct 17, 2015 at 2:51 AM, D1028Gary@... [ultralightdx]
<ultralightdx@...> wrote:


Finally, whoever shot the video apparently wasn't aware that whenever you change plug-in loopsticks on a PL-360 you must shift the frequency off slightly and then back on, in order for the Si4734 DSP chip to readjust to the different loopstick inductance, and provide maximum sensitivity. In any case, it will be interesting to see how many sales this company will end up with, and the ultimate performance of their 200mm loopstick design.

Is power-cycling the receiver not sufficient to get the chip to
re-evaluate the antenna?

Also, let me add, that it's wicked cool that the chip can actually do that!! :)



--
Peter Laws | N5UWY | plaws plaws net | Travel by Train!


Puyallup, WA Ultralight TP's for 10-17

Gary DeBock
 

Despite the lackluster reports from Victoria this morning's session did have an unusual offering-- the best signal from the 1035-CNR1 synchros ever received here (fair) around 1345. That was a pretty bizarre reception, though, seeming to go against the trend of a mediocre morning for everything else.
 
Two band checks at 1300 and 1330 confirmed the dreary situation that Colin and Nick had described, with all the Asian signals subdued. The usual NHK big guns and 1566-HLAZ seemed to be struggling, and nothing else was in audio. Figuring that the session would turn out to be a clunker I debated whether to set up the FSL antenna as usual in the back yard, but after hearing an unusually strong carrier on 1035 (with the distinctive, warbling sound of the poorly synchronized CNR1 stations) I decided to do so. Around 1345 these 1035-CNR1 synchros managed a fair peak with Chinese male speech-- their best level ever here in Puyallup. Despite this almost no other Asians sounded healthy at the time, with the NHK big guns and 1566-HLAZ still struggling, and only the 1053-Jammer matching 1035 with fair audio. Around 1400 the Japanese on 594, 693, 747 and 828 finally got untracked, but of these only 594 reached a good level (around 1405). 972-HLCA also came up to a brief good level at 1359, and a weak mix of HLSA and China appeared on 603. Late on in the session both 1575-VOA and 1593-CNR1 came out of the noise to reach fair peaks before collapsing with the other Asians around 1415. Overall it was a bizarre session, without much of interest except the unusual signal from 1035-CNR1 at 1345.
 
972  HLCA   Dangin, S. Korea   Pop music, KBS ID and 3+1 time pips at good level at 1400 TOH
 
1035  CNR1 Synchros   Chinese male speech at fair level (with minor echoes) at 1345-- its best signal ever here
 
73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)
7.5" loopstick C.Crane Skywave Ultralight +
15" FSL antenna
 
 


Re: Sony ICF-P26

Rik
 

My SONY ICF-P26 just arrived. It certainly is small enough to be an ULR.

Who do I email with the details of how it seems to qualify for ULR approval?

I have done more listening to the larger ICF-306. At night coupled to the BOG AM is very crowded. I logged-

WZON 620 5KW-260 miles
WILK 980 1KW-201 miles
WDCX 990 2.5 KW 302 miles
WRCA 1330 17 KW 52 miles

None are new logs, but are not easy to hear stations by any means here, and it is only mid Oct.

-FARMERIK


Tecsun PL-360 Commercial 200mm Plug-in Upgrade Antenna

Gary DeBock
 

Hello All,
 
While checking the latest eBay listings I came across this 200mm plug-in upgrade loopstick for the Tecsun PL-360 model, sold for $35.00 (+ $9 shipping) from a company in Greece: 
 
A demonstration video of the 200mm plug-in loopstick's MW performance is posted at
 
Since this type of antenna is very similar to the 7.5" upgrade MW and LW loopsticks that I designed for the PL-360 model four years ago (the article posted at http://www.mediafire.com/view/2cqwsqj0bvajf6k/7.5_inch-LS.doc ) 
I thought that I would offer a couple of comments. The $35.00 price seems very reasonable, although no details are given of the loopstick's coil design or inductance. The design lacks any type of locking system like the rubber hose clamp on the 7.5" plug-in loopsticks, which means that the antenna will rotate around freely in the plug-in socket (similar to a ham radio antenna on a tower, with no brake). Finally, whoever shot the video apparently wasn't aware that whenever you change plug-in loopsticks on a PL-360 you must shift the frequency off slightly and then back on, in order for the Si4734 DSP chip to readjust to the different loopstick inductance, and provide maximum sensitivity. In any case, it will be interesting to see how many sales this company will end up with, and the ultimate performance of their 200mm loopstick design.
 
73, Gary DeBock (in Puyallup, WA, USA)


Puyallup, WA Ultralight TP's for 10-16

Gary DeBock
 

As Colin and Nick have reported Asian signals dropped off somewhat in comparison to yesterday, although a decent sunrise enhancement boosted up a couple of second-tier TP's to better levels. The Japanese big guns and 1556-HLAZ were the only really energetic performers, however.
 
At my 1315 start time only 1566 sounded very healthy, with very good level Japanese speech. By contrast the NHK big guns sounded anemic during the predawn darkness, and the second-tier TP's were completely missing in action. Around 1350 the usual collection of Japanese NHK signals on 594, 693, 747 and 828 began to get a decent sunrise enhancement boost, which brought 594 and 693 up to good levels in and out. 972-HLCA and the 1053-Jammer came out of the noise as well, but never did get much above fair levels. Early in sunrise enhancement the somewhat unusual 1323-CRI also came out of the noise with apparent Russian, but couldn't maintain its weak strength. The situation would have been routine and boring except for a fair mix of 603-HLSA and 603-China that came out of the noise at 1405, and an unusually good signal from 1134-JOQR at 1407, playing instrumental music during the late night in Japan. Other second-tier TP's (558, 657, 738 etc.) stayed down in the noise for the entire session, though, and none of the Japanese big guns matched yesterday's levels. Overall it was a pretty typical lean-season session, although 1134-JOQR's signal at 1407 was the best that it has managed here fro a couple of years.
 
693  JOAB   Tokyo, Japan   NHK2 Chinese lessons at good strength at 1356
 
1134  JOQR   Tokyo, Japan   Instrumental music at good strength at 1407; its best signal here since 2013
 
73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)
7.5" loopstick C.Crane Skywave Ultralight +
15" FSL antenna
 
 


Anyone heard of a Kaito KA268? -FARMERIK

Rik
 

I just spotted one on Amazon, and wondered if it is old or new? Similar coverage to dual conversion  R-9600DX and single conversion DEBO D-932 but different case and control locations. Only $20 + Shipping. -FARMERIK



Re: Getting the best sound out of an ultra portable

keith beesley
 

I sometimes use a pair of small Sony (battery) powered speakers, designed for use with a laptop or desktop computer--not hi-fi but a significant boost in volume.I imagine real hi-fi speakers would sound better. Good-quality headphones or earbuds are another option.

Keith Beesley
Seattle USA



On Thursday, October 15, 2015 11:10 AM, "Steve Rowley rowlsteve@... [ultralightdx]" wrote:


 
Sounds good to me Farmerik.  FYI, my tiny Tecsun PL-606 easily drives my passive mini speakers as mentioned.

On Thu, Oct 15, 2015 at 6:59 PM, farmerik@... [ultralightdx] <ultralightdx@...> wrote:
 
Radios with FM stereo often have tiny chip amps for the headphone jack with only a few mW/channel so you can't drive a passive speaker with those. The my older PL-310 seemed to work just fine driving a mono speaker, I think my PL-310 ET does too but I am not certain.

I have a pair of SONY SRS-38 amplified speakers. Each has its own amp and 4 AA cells and it does pretty well for stereo from headphone output jacks with tiny amps. I like those much better than a number of similar speakers I have tried. 

-FARMERIK




Re: Getting the best sound out of an ultra portable

Steve Rowley <rowlsteve@...>
 

Sounds good to me Farmerik.  FYI, my tiny Tecsun PL-606 easily drives my passive mini speakers as mentioned.

On Thu, Oct 15, 2015 at 6:59 PM, farmerik@... [ultralightdx] <ultralightdx@...> wrote:
 

Radios with FM stereo often have tiny chip amps for the headphone jack with only a few mW/channel so you can't drive a passive speaker with those. The my older PL-310 seemed to work just fine driving a mono speaker, I think my PL-310 ET does too but I am not certain.

I have a pair of SONY SRS-38 amplified speakers. Each has its own amp and 4 AA cells and it does pretty well for stereo from headphone output jacks with tiny amps. I like those much better than a number of similar speakers I have tried. 

-FARMERIK



Re: Getting the best sound out of an ultra portable

Rik
 

Radios with FM stereo often have tiny chip amps for the headphone jack with only a few mW/channel so you can't drive a passive speaker with those. The my older PL-310 seemed to work just fine driving a mono speaker, I think my PL-310 ET does too but I am not certain.

I have a pair of SONY SRS-38 amplified speakers. Each has its own amp and 4 AA cells and it does pretty well for stereo from headphone output jacks with tiny amps. I like those much better than a number of similar speakers I have tried. 

-FARMERIK


Puyallup, WA Ultralight TP's for 10-15

Gary DeBock
 

As Colin and Nick have reported Asian signals were significantly improved this morning, with stronger audio from both the big guns and second tier TP's. And Nick is quite correct about the signal from 594-JOAK-- it hit an S9+ level here just after 1400.
 
At my 1315 start time the usual Japanese and Korean powerhouses were vibrant in the predawn darkness, with 594, 693, 747, 848 and 1566 all hitting good levels on peaks, and 972-HLCA and the 1053-Jammer not far behind. In addition the somewhat unusual 558-HLQH had a fair signal in and out through the 560 splatter around 1330, significantly stronger than its 603 //. A presumed 738-BEL2 had threshold audio in and out throughout the session, as did both 603-HLSA and 657-Pyongyang, although none of these seemed to maintain energy for more than a few minutes at a time. After 1400 the already potent NHK big guns got a serious sunrise enhancement boost, and 594-JOAK, 693-JOAB and 747-JOIB all hit S9 levels in and out until around 1410. The second tier Asians were nowhere near that strength, but 1044-CRI, 1134-JOQR and1323-CRI did manage weak audio just past 1400. 1566-HLAZ also had an unusually good signal throughout the session (very good on peaks), but the star performer this morning was 594-JOAK, hitting an S9+ level with Japanese male-announced NHK news at 1403. Overall the session was a clear improvement over yesterday, although it would have been more interesting with stronger audio on 558, 603, 657 and 738. At least there was fairly good variety in the Asian signals-- not always the case during this season of low expectations.
 
594  JOAK   Tokyo, Japan   S9+ level Japanese NHK news at 1403-- best Asian signal of the session
 
73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)
7.5" loopstick C.Crane Skywave Ultralight +
15" FSL antenna
 
 


Re: Getting the best sound out of an ultra portable

rowlsteve@...
 

Indeed, another approach. But it's not stereo unless you get two, and then the setup is starting to get a bit big.  I mean, one could plug the radio into two powered, modern PA speakers and get a truly great sound, but part of my original idea was for it to be 'in keeping' with the small size of the radio, the kind of thing that you can quickly and easily put on a small desk then hide away in draw.  But yes, a good idea. 


Re: Getting the best sound out of an ultra portable

Rik
 

If you have some room, about 3/4 of one cubic foot, look for an old University MLC outdoor horn speaker for music. It has a smooth sounding PA horn and a 6 inch cone woofer inside set up with a folded horn. Extremely efficient. Make sure you get one which does not have a line matching transformer built in, but connects directly to the voice coils. There are larger versions with 8 or 12 inch woofers too. With well under 1 Watt to drive a speaker, I usually do not go with woofers larger than 8 inch even in folded horn cabinets. - FARMERIK


Getting the best sound out of an ultra portable

rowlsteve@...
 

The use of minuscule speakers in ultra portable sets disallows any form of decent audio to be had from them; that's the laws of physics.  The sound is middley, with virtually no bass.  Although you're obviously taking the set into another form of use ie no longer portable, I recently resurrected some small speakers that were 'add on' ones for use with a Walkman style cassette player.  So, I just hook my Tecsun PL-606 up to these little speakers and the sound is instantly transformed; 'bigger', bassier, better treble, and glorious stereo (FM). Another dimension has been added to its use now.  For the record, my speakers are Ferguson (UK) type TA 135, they're about 5x4x4 inches.


Re: Tecsun web site range has me confused..

Rik
 

I have bought radios from here, and they do list sets sold in different markets. It takes a little persistence to see every radio they offer.-

http://tecsunradio.cantonmade.com/

-FARMERIK


Puyallup, WA Ultralight TP's for 10-14

Gary DeBock
 

Asian results here were slightly different from Dennis' report, but in general it was another Japanese and Korean big gun show, with most of them waiting until sunrise enhancement to sound very energetic.
 
At my 1300 start time the band once again sounded dreary in the predawn darkness, with only 1566-HLAZ having much of a signal (fair on peaks). The NHK big guns all sounded anemic until around 1350, when the usual collection of Japanese on 594, 693, 747, 774 and 828 began to get a serious sunrise enhancement boost, rising up to good levels in and out. 1287-JOHR is on a pretty noisy frequency here, but it managed to join the other Japanese big guns with good peaks in and out after 1400, which is somewhat unusual here. 1566-HLAZ also hit good peaks around 1400, while 972-HLCA and the 1053-Jammer had their moments of fair audio. Other than these regulars the results were meager indeed, with only a few ghostly gasps on 1323, 1503 and 1575 after sunrise enhancement around 1405. Overall it was another lackluster session here, although the Victoria DXers (with their superior DU propagation) could see things quite differently.
 
73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)
7.5" loopstick C.Crane Skywave Ultralight +
15" FSL antenna


Re: Tecsun web site range has me confused..

Steve Rowley <rowlsteve@...>
 

So are you saying that the radios on Tecsun's web site are for their own, Chinese market? As obviously the Tecsun sets we see for sale in Europe are aimed at that (European) market - and it's the same for the US.  Nonetheless if what you say is correct, you'd think (hope!) there would be an online source to see the range of sets aimed at other markets.

On Wed, Oct 14, 2015 at 4:55 PM, farmerik@... [ultralightdx] <ultralightdx@...> wrote:
 

Lots of things including radios are made for specific markets. SONY Asia has many interesting radios not sold in the USA. One I'd like for my entertainment grade SONY collection is the ICF-M260 with AM FM AND a SW band. In Europe they sold many radio models with a LW band while in Asia the same model had a SW band instead. There was a small radio from China talked about in one of my Yahoo groups sold as a Scott brand, and looking around I found the same radio was being sold under a different name perhaps 15 years ago reviewed in RadioIntel. It may well have stayed in production for domestic China all those years in between. Boom boxes with cassette recorder/player decks are still popular in Asia, and SONY still offers one or two in the USA. - FARMERIK



Re: Tecsun web site range has me confused..

Rik
 

Lots of things including radios are made for specific markets. SONY Asia has many interesting radios not sold in the USA. One I'd like for my entertainment grade SONY collection is the ICF-M260 with AM FM AND a SW band. In Europe they sold many radio models with a LW band while in Asia the same model had a SW band instead. There was a small radio from China talked about in one of my Yahoo groups sold as a Scott brand, and looking around I found the same radio was being sold under a different name perhaps 15 years ago reviewed in RadioIntel. It may well have stayed in production for domestic China all those years in between. Boom boxes with cassette recorder/player decks are still popular in Asia, and SONY still offers one or two in the USA. - FARMERIK


Re: Sony ICF-P26

Rik
 

Look here for the ebay listings -

Sony ICF-306 Black 2-Band AM/FM Travel Portable Radio New

 



or

eBay item number:
391258900658
I have that one.

Sony ICF-P36 Black 2-Band AM/FM Travel Portable Radio New


 


or -

eBay item number:
221883124895

These two are horizontal. All three have the two LED indicators, BATT & TUNE, the 100mW output and are compatible with stereo headphones, ie sounds comes out of both ear pieces. Speakers are larger in the larger cabinets, but the circuitry could all be the same. Hopefully the ferrite is longer in the larger cases too. The ICF-306 has very good audio for its size. It uses a 66 mm speaker which is the same size as the ICF-SW-11 but the audio is better to my ear. Virtually no noises, whistles or whines  between stations unless very close to an RFI source which is par for a SONY. The tuning is a thumb wheel on top, not the knob on the side. It can travel about 3/4 inch per 'pass' and it takes 10 times to get across the bands. - FARMERIK

---In ultralightdx@..., <sintsixtus@...> wrote :

I've seen a horizontal version of this radio in a krefel.be shop

Marc

Op 13 okt. 2015 15:59 schreef "rmartin100@... [ultralightdx]" <ultralightdx@...>:

 

I see Sony has a new ultralight radio. Here's the Amazon link for the ICF-P26>

 Amazon.com: Sony ICFP26 Portable AM/FM Radio (Black): Electronics

Amazon.com: Sony ICFP26 Portable AM/FM Radio (Bla...
Enjoy AM and FM radio virtually anywhere with the Sony ICF-P26 Portable AM/FM Radio. You can use the built-in 100mW speaker or attach headphones to the 1/...
Preview by Yahoo

I'm wondering how it's reception is compared to a SRF-59.

Ryan

 


Re: Sony ICF-P26

Marc Coevoet
 

I've seen a horizontal version of this radio in a krefel.be shop

Marc

Op 13 okt. 2015 15:59 schreef "rmartin100@... [ultralightdx]" <ultralightdx@...>:

 

I see Sony has a new ultralight radio. Here's the Amazon link for the ICF-P26>

 Amazon.com: Sony ICFP26 Portable AM/FM Radio (Black): Electronics

Amazon.com: Sony ICFP26 Portable AM/FM Radio (Bla...
Enjoy AM and FM radio virtually anywhere with the Sony ICF-P26 Portable AM/FM Radio. You can use the built-in 100mW speaker or attach headphones to the 1/...
Preview by Yahoo

I'm wondering how it's reception is compared to a SRF-59.

Ryan

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