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Re: [IRCA] WCXH-780 DX Test
- Subject: Re: [IRCA] WCXH-780 DX Test
- From: "Steve Ratzlaff" <steveratz@xxxxxxxx>
- Date: Sun, 25 Nov 2007 18:46:12 -0800
I wasn't able to participate in the test, but I've listened to both Bill's
and Barry's audio clips of the morse code--transcription follows:
WCXH WCXH WCHX MONTICELLO, MAINE WCXH WCXH WCXH (14 upward-sweep tones
follow the code)
Note the third code group is an erroneous transposition of the station
callsign! The speed indeed is slow--one could write the dots and dashes down
and then decipher them afterwards with a code table, even if one didn't know
the code, at that slow speed. LF NDB's use similar slow code for that very
reason--the pilot can copy the dots and dashes and look up the ident if he
really wants to verify the signal on a particular frequency is the one he's
expecting.
The use of a comma (dah dah di di dah dah) following the city is not often
heard. I used to copy the merchant marine press broadcasts sent to ships at
sea--since the copy being broadcast was machine-generated, it used all the
various morse code punctuation characters--parentheses, semicolons, etc.
Most of those characters would only be heard on those press broadcasts and
nowhere else.
Best regards,
Steve AA7U
NE Oregon
----- Original Message -----
From: "Jim Pogue" <KH2AR@xxxxxxxxxxx>
To: "'Mailing list for the International Radio Club of America'"
<irca@xxxxxxxxxxxxxxxx>
Sent: Sunday, November 25, 2007 3:47 PM
Subject: Re: [IRCA] WCXH-780 DX Test
>I prepared the code and indeed it was 10 wpm.
>
> Jim
>
> -----Original Message-----
> From: irca-bounces@xxxxxxxxxxxxxxxx [mailto:irca-bounces@xxxxxxxxxxxxxxxx]
> On Behalf Of Barry McLarnon
> Sent: Saturday, November 24, 2007 8:05 PM
> To: Mailing list for the International Radio Club of America
> Subject: Re: [IRCA] WCXH-780 DX Test
>
> Since there seems to be some confusion about the nature of the code
> (tone frequency, speed) sent during this test, I thought it would be
> useful to post a clip that you folks out west can use for comparison
> to what you heard:
> http://topazdesigns.com/ambc/audio/wcxh-780-0450-24nov07.mp3
>
> It sounds very close to 1 kHz to me, and maybe 10 wpm or so. There
> are also some sweeps at the end of the clip.
>
> Hope this helps,
>
> Barry
>
> --
> Barry McLarnon VE3JF Ottawa, ON
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