[RTTY] The stations away from my frequency

[Robert Chudek]

Some of the Kenwood radios display the Space frequency on the dial instead of the Mark frequency. This would put a spot 170 Hz off and the cluster would probably round that up to 200 Hz. The Kenwood TS-950SD and SDX models have this anomaly. There's probably others as well.

73 de Bob - KØRC in MN


--------------Original message thread----------------

Message: 2
Date: Wed, 29 Aug 2007 17:58:34 +0100
From: "Phil Cooper" <pcooper at guernsey.net>
Subject: Re: [RTTY] The stations away from my frequency
To: "Bill Turner" <dezrat at copper.net>, "RTTY" <rtty at contesting.com>
Message-ID: <IBEAKBCDCCOMNLAMPIHEMEBNGAAA.pcooper at guernsey.net>
Content-Type: text/plain; charset="us-ascii"

Hi Bill, and the group,

I guess that may one answer. I hadn't thought of that one!
It could also be that there are slight differences in dial frequency, and
this may make a difference too. I may be on 14.082.25 in which case, MMTTY
would read this as 14.082.3 and the cluster would also see it as 14082.3
Some folk may have a dial frequency of 14.082.24, in which case MMTTY reads
this as 14.082.2 and the cluster sees it as 14082.2
That would account for the 100Hz offset.

It was NOT an AFSK problem where folk aren't usually too sure where they are
actually transmitting, as the spots were too close to my actual frequency.
It was just that they were 100 - 200 high or low.
This implies they were using FSK (although not necessarily!), and so I am
not sure why they didn't net properly on to me.
It is not a serious problem, just far more common in this contest than most
previous contests.

73 all

Phil GU0SUP