Posted by
Don Wilhelm-4 on
Nov 05, 2007; 9:32pm
URL: http://elecraft.85.s1.nabble.com/SS-Strangenss-tp455483p455485.html
Kurt,
Check your KX1 menu setting for the STP parameter - the KX1 should
offset by that amount during transmit.
When you said "I knew I was on the calling stations frequency" - do you
mean that you tuned the station to the same audio frequency as your STP
menu parameter? If so, then your transmit signal should be right on the
other stations frequency. The menu setting tells the firmware how much
to offset but there is an expectation that you will also tune the other
station to that same audio pitch.
Be aware that many other operators do not know how to zero beat, nor
what it really means - they have been using transceivers too long. In
fact, I recall one ham who stated "I can hear him in my receiver, so he
will hear me!" Maybe it is time for zero beating lessons on the air
(sorry for the rant).
You may want to run a test if you have any doubts - tune in a signal on
another receiver and tune the same signal on your KX1 - then without
changing the KX1 VFO, connect a dummy load and transmit while listening
to your signal in the other receiver - if everything is correct, you
should hear your signal at the same note as the original signal you
tuned to.
73,
Don W3FPR
Kurt Pawlikowski wrote:
> Hi,
>
> First, FYI: this is cross-posted to the Elecraft reflector and the
> SKCC group.
>
> I "played" on the SS the weekend. Attained 63 contacts QRP (KX-1).
> I was mostly giving out points as I probably won't submit my log...
> But, anyway...
>
> While attempting to respond to a station, I was using a spectrum
> program so I knew I was on the calling stations frequency (in this
> case, I believe the KX-1 uses a 600 Hz offset - I've tested it with
> another radio and it seems correct). So, here's the "strange" part: If
> I zero beat the calling station, there was about a 1 in 10 chance
> they'd hear me! If, on-the-other-paw, I tuned to about 450 or 500 Hz,
> they seemed to hear me okay! And this included stations who were
> answering on their exact frequency! I first noted this when calling
> one station, but heard my call at about a 100 Hz tone (which meant my
> sig was 500 Hz below him). I thought, "Huh?" Well, it works out well,
> because the bandwidth filters seem centered on about 450 Hz when at
> it's narrowest, but the question is, why was this? I mean I fully
> expected stations to be listening on their own frequency first, then
> offsets. Or, am I missing something? {'-)
>
_______________________________________________
Elecraft mailing list
Post to:
[hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help:
http://mailman.qth.net/subscribers.htmElecraft web page:
http://www.elecraft.com