[Elecraft] Reported RX Frequncies in WSJT-X?

Joe Subich, W4TV lists at subich.com
Wed Nov 23 07:53:40 EST 2016



On 11/23/2016 6:16 AM, MaverickNH wrote:
> Looking at WSJT-X 1.7rc2 ALL_WSPR log and seeing RX frequencies such as
> 14.0971282. Seems like too many digits unless reporting 10th of a Hertz as
> in 14,097,128.2 Hz. Perhaps this is calculated as an average over the RX
> window?

Yes it is calculated:  Dial (carrier) frequency + tone (audio
frequency) of the sync bits.

> Looking at the log for RX over 500+ RXs, I find the RX frequency range is
> 206Hz. Actual TX 14,097,037 and average RX at 14,097,110, or +73Hz.

This would appear to indicate a "dial" frequency of 14,096.000 KHz with
a transmit audio frequency (sync bits) of 1,037 Hz while signals you
receive have somewhat dial or audio frequencies.

73,

    ... Joe, W4TV




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