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ZS1WC > HELP 25.02.05 07:21l 44 Lines 1155 Bytes #999 (0) @ WW
BID : C60134ZS1WC
Read: GUEST
Subj: Re: SIGNAL ON 21.388??????
Path: DB0FHN<DB0MRW<DB0WUE<DK0WUE<7M3TJZ<HG8LXL<I0TVL<IR0UCI<IW5CWB<I0XNH<
IK0MIL<UA6ADV<ZS6FB<ZS0DLD<ZS6RO<ZS0BEL<ZS1TGH<ZS0HER
Sent: 050220/2003Z @:ZS0HER.GRT.WCP.ZAF.AF #:41522 [Hermanus] FBB7.00g25
From: ZS1WC@ZS0HER.GRT.WCP.ZAF.AF
To : HELP@WW
G0FTD Andy replied
> ZS1WC wrote:-
>> Can anybody pse tell me who or what is transmitting the signal on
>> 21.388????
>> Is it MFSK ( no decoding ) type of MTTY ( no decoding) or what?
>>
>> This has been there now for some length of time.
>>
>> Any takers to put me out of my ignorance?.............
Andy answers with;
> Yes. It's Over the Horizon Radar (OTH).
>
> It's about 25Khz wide and sounds like a continuous buzzing or "motor
> boating" noise which is quite fast.
>
> As I write it's on 21.338 (not 388) and it's been there all week.
>
> It's about S9 here during the daylight hours and sometimes varies frequency
> across the top part of our 15m band.
>
> The most prolific user of OTH these days is Iran.
>
> So now you know.
Tnx Andy but I still dont know;
When I say it sounds like MFSK, thats just what I mean, and that aint
anything like buzzing or motor boating!
When I say 21.388, thats where it is...not 21.338....that does not mean
you aint having a motor boat noise on 21.338.
Tnx fr trying to help Andy.
73 - Johan, ZS1WC @ ZS0HER
Message timed: 22:01 on 2005-Feb-20
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