[GreenKeys] GreenKeys Digest, Vol 85, Issue 16

Gary Buda gbuda at cyberwright.net
Sat Feb 12 12:59:28 EST 2011


Wrong shift??...2125 Mark and 2295 Space or 2125 Mark and 2975 Space?..most 
stations using 170 hz shift today.  When I first got on RTTY all the books 
said 850 hz shift, but then, they were old books.  And nobody told me about 
being upside down until I first tried transmitting and, yes, I was upside 
down. 
Upside down?...if using AFSK and Mark is 2125 and space is 2295, use LSB, not 
USB.
Gary
WA0NDN
NNNN

On Saturday 12 February 2011 11:01:26 am greenkeys-request at mailman.qth.net 
wrote:
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> Today's Topics:
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>    1. RTTY mystery (Kevin H. Phillips)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Sat, 12 Feb 2011 10:32:37 -0600 (CST)
> From: "Kevin H. Phillips" <kh-phillips at 9-5usa.org>
> Subject: [GreenKeys] RTTY mystery
> To: "'GreenKeys'" <greenkeys at mailman.qth.net>
> Message-ID: <10648.67.142.130.17.1297528357.squirrel at 9-5usa.org>
> Content-Type: text/plain;charset=iso-8859-1
>
> I have an addendum to my own post.  I have a RTTY mystery I'd like to toss
> out to see if the group can help solve it.  As I mentioned, I've noticed
> that I seem to be "invisible" on 20m.  Very few will answer me.  I have
> worked 20m for over 2 hours now without a confirmed contact.  Finally, one
> station sent this:  "SRI NO CHAR SENT . . . JUST MARK TONE".  I have
> gotten similar responses in the vein of "NO SHIFT, ONLY CARRIER".  I have
> checked by turning the power down on the Yaesu, and listening on a second
> HF rig without an antenna attached and I definitely hear the shift so I
> don't understand why it isn't getting out.  Is it a problem with my
> transmitter or their tuning?  On 40m and 80m I don't seem to have this
> problem.  I made two contacts on 20m yesterday without a problem although
> they were the only two I made.  The "rest of the story" is that I have a
> dipole (260ft) fed with 450ohm ladderline to a Drake MN-2700 tuner.  I
> have the Yaesu set up to send FSK although it is actually being converted
> internally to AFSK.
>
> Any ideas?  Thanks.
>
> 73
> Kevin
> W5TTY
>
>
>
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> End of GreenKeys Digest, Vol 85, Issue 16
> *****************************************




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