[RTTY] Funny signal

W4LA at aol.com W4LA at aol.com
Tue Jan 11 07:14:36 PST 2011


 
That's why I use the "monitor" button to check.  Or a second  radio!
 
Todd / W4LA

 
 
In a message dated 1/11/2011 9:34:59 A.M. Eastern Standard Time,  
aa5au at bellsouth.net writes:

I didn't  see that one but I had many stations calling me with no shift, 
just a  
steady mark tone.  Normally I'll see this once or twice but it seemed  to 
happen 
at least 15 different times.  I just sent "STATION CALLING  YOU ARE SENDING 
ONLY 
A STEADY CARRIER NO SHIFT".   Some kept  calling and some hopefully went 
off to 
figure out why their FSK keying  circuit wasn't working.

I believe it's important this gets checked  BEFORE the contest. hi

73, Don AA5AU



----- Original  Message ----
From: Kok Chen <chen at mac.com>
To: RTTY Reflector  <RTTY at contesting.com>
Sent: Tue, January 11, 2011 12:05:40  AM
Subject: [RTTY] Funny signal

I came across a funny signal during  the Roundup.  It was another S&P 
station, 
and it didn't hang  around for long enough for me to get a fix.  The FSK 
shift 
appeared  to be very narrow, more like 50 Hz than 170 Hz.

So, if you'd S&P  without getting too many replies, check your shift.  
(Omni V 
and VI  were notorious for producing way off frequency shifts when operated 
in 
FSK  -- their shifts were controlled by a trimmer capacitor.)

73
Chen,  W7AY

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