Re: [IRCA] Possible Japan LF beacons to listen for

["Steve Ratzlaff" <steveratz@xxxxxxxx>]

I hear a couple of Japan-area beacons more or less regularly, if propagation 
is favoring that direction, during the fall-winter season, very rarely 
during the summer. But remember that they're running at most 1kW or less, 
and at best are not in the least strong, at least at my inland location. 
It's unlikely you'll hear them in AM mode; you'll need CW mode and the 
narrowest filter you can select, to try to maximize the effective 
sensitivity of the radio. I always use very narrow outboard audio filters, 
in addition to the 250 Hz IF filter in the radio. My present homebrew opamp 
audio filter has 8 Hz bandwidth and really digs down into the noise for the 
faint beacons.
Good luck! As with MW TP signals, the closer you are to the Pacific Ocean, 
the better your chances of hearing a TP LF beacon.
Steve

All Japanese beacons have a several second or longer dash after the CW 
ident--quite distinctive as only North American Canadian beacons use a dash 
(called "DAID"--dash after ident). All have a nominal +/- 1020 Hz modulation 
from the unmodulated carrier. (French beacons that I also hear, from places 
like Polynesia, also use a DAID, sometimes 30 seconds or more, but you won't 
be hearing them at this time of year, generally--they're summer beacons.)

209 MQ,  Miyako. I hear this quite often.
343 ML, Minami Tori Shima (an island quite a distance from Japan proper). I 
hear this one the most of all.
360 OX, Iwo Jima. I've heard this frequently for the past month or so.
Those are the most-frequently heard ones here. Others I've heard very 
infrequently include 360 KC, 373 PQ, 390 HKN, and the new one heard this 
morning 398 ON.
For practice, I'd try for 353 LLD, Hawaii. That's the strongest Pacific 
beacon heard in North America, and the closest. If you can't hear that, then 
it's doubtful you'll hear any of the Japanese-area beacons, which are much 
weaker in comparison. It's been heard once or twice from as far south and 
east as New Mexico and Colorado, and once under very unusual conditions in 
Illinois.

----- Original Message ----- 
From: <cafe@xxxxxxxxxxxxx>
To: "Mailing list for the International Radio Club of America" 
<irca@xxxxxxxxxxxxxxxx>
Sent: Wednesday, November 23, 2005 11:45 AM
Subject: Re: [IRCA] TP in NE Oregon


>> I keep waiting for the west coast folk's reports on the wonderful Asian
>> reception this morning. It was fairly good here, relatively speaking,
>> 300 miles inland. After hearing a new JJ beacon on LF, I turned to MW
>> and had many TP hets, along with poor audio on 774 (poor/weak audio),
>> 1116 (poor audio) and 1593 (poor audio) between 1415-1520 utc.
>
> This morning seemed a little more DU than Trans-Pacific.
>
> Could you post the frequencies of the more common
> JJ Beacons? It has never occured to me to chase some
> of those.
>
> Thanks,
> Colin in Victoria, B.C. Canada
> Drake R8 - Kenwood R2000 - ALA100Wellbrook
> and assorted hand-made loops
>
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