[Elecraft] WSJT-X Frequency Anomaly

[Bob McGraw K4TAX]

There is a Freq Cal mode in WSJT-X.   I suggest if the radio or sound 
card is in question, run this mode and determine the results.  Bet 
you'll be surprised at the inaccuracy of the digital readout on a radio 
and or soundcard.   I was!

73

Bob, K4TAX


On 1/18/2019 3:23 PM, Don Wilhelm wrote:
> Note that in the two cases mentioned, you reported 47 +/-1 Hz difference.
>
> That is not much and can easily be attributed to a difference in the 
> calibration of the radio or the audio frequency accuracy of the 
> soundcards.
>
> 73,
> Don W3FPR
>
> On 1/18/2019 12:07 PM, Rick WA6NHC wrote:
>
>> On 1/18/2019 8:54 AM, Richard wrote:
>>> After working a friend on 10 meters with FT8 I phoned and asked him 
>>> why he always stayed up high at 2454 Hz. He said WSJT-X said he was 
>>> dead on 2500 Hz.
>>>
>>> I asked him what it said my frequency was. He said it was 1048 Hz; 
>>> my WSJT-X said I was dead on 1000 Hz. We did more testing at other 
>>> frequencies and on other bands and found similar discrepancies.
>>>
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