View Single Post
  #3   Report Post  
Old April 22nd 07, 09:03 PM posted to rec.radio.amateur.equipment
Dee Flint Dee Flint is offline
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 618
Default A Kenwood HF rig's "real" frequency in CW


"Pat Whelton" wrote in message
ink.net...

"billcalley" wrote in message
ups.com...
Hi All,

This may sound like a very silly question, but what is the "true"
frequency of, lets say, a Kenwood TS-530S? What I mean is, when it is
said that a particular CW calling frequency is exactly "7.040MHz",
then should I set the TS-530S' frequency display to 7.040MHz (in
receive mode), or to 7.0392MHz (for a display of 7.040MHz during
transmit) to be spot-on a designated Calling Frequency? I obviously
would like to make 100% sure that I'm exactly on frequency, and not
off by 800Hz, when monitoring for any CQs!

Thanks for any clarification,

-Bill


Hi Bill. I will be interested to hear the replies to your question since
I
have a similar problem with the TS-570DG. When I work CW it seems that
stations (as in your example) that are supposed to be on 7.040 MHZ always
sound better to me on 7.040.10 MHZ. I seem to be able to work them fine
but
I always wonder if I should move back to 7.040 for transmit.

Regards,

Pat



Bill is referring to the fact that older Kenwoods display at one frequency
while listening and the offset frequency when transmitting (the offset being
equal to the sidetone of 800hz). I used to operate a Kenwood TS-130SE when
I was new and it took me awhile to figure out what was going on. In this
case, one should set the monitoring frequency to read as transmit minus 800
Herz or 7.0392 in the example above.

On the other hand, Pat, your radio is one of the newer ones that displays
the transmit frequency at all times (i.e both receiving and transmitting)
when in CW mode. Therefore on your radio, the issue could be one of several
things: the default pitch used doesn't appeal to you, the radio is out of
adjustment, or something else entirely.

Dee, N8UZE

Dee, N8UZE