Yea, it's not relevant to WSPR. The WSPR modes are just USB SSB
modulated by audio tones. By convention, the VFO frequency is set to the
bottom edge of the WSPR subband, and your transmit frequency is set by
the frequency of the audio tone. So everyone is tuned to the same
frequency and occupy a portion of the same 2 khz upper sideband.
BTW, WSPR is the only mode I have ever used where I was able to work the
inventor! I kind of missed out on Mr. Vail and Mr. Morse, and doubt they
every were on the air at all. Likewise, Inever met the inventors of AM
or SSB. But K1JT appears relatively often on 20m JT65 and JT9.
Eric
KE6US
On 9/1/2013 1:02 PM, Richard Ferch wrote:
Oops! I missed the fact that the different frequencies in WSPR are
because of the audio offset - I imagine it is not using either of
SPLIT or RIT/XIT. My mind was set on split because of the earlier
posts about WSJT-X. I believe my previous post was correct, but it is
probably irrelevant to WSPR.
73,
Rich VE3KI
On 2013-09-01 3:56 PM, Richard Ferch wrote:
Mike,
In SPLIT mode the K3's frequency display does not change between
transmit and receive. The main receiver's frequency is always shown in
the upper (larger) display, and in SPLIT mode the lower display always
shows your transmit frequency. So if you want to know what frequency you
are transmitting on, you have to first check whether you are in SPLIT
mode or not before deciding which part of the display to look at.
If you were using RIT or XIT instead of SPLIT mode as your method of
adjusting TX and RX frequencies separately, then the frequency shown in
the upper display would change between transmit and receive.
I don't know which method your software uses, but it sounds as if it's
putting the K3 into SPLIT mode.
73,
Rich VE3KI
VE3WDM wrote:
When using WSPR the TX and RX frequencies are not the same....for
example
on 30m the RX is 10.138700 and the TX is 10.140200. For those of you
using
the K3 does your read out on the K3 change to the TX freq then the
rig goes
into transmit? Mine is not and not sure if this is normal or if I
have to
set something to show this.
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