[SADXA] K7NN SCREENSHOT

[Wes]

I see it frequently too, but it's more likely that he really is transmitting 
three (or more) frequencies due to IMD in the audio chain.  The clue will be to 
look at the harmonic relationship between the frequencies.  It they're related, 
they're IMD.  The receiver should be linear too; this means no noise blanker and 
if there is a front end attenuator, use it if possible.  If turning it on/off 
makes a difference, it's an invalid test.

Wes  N7WS


On 12/20/2019 2:15 PM, Richard Solomon wrote:
> Reflections, sometimes due to aircraft or
> bouncing off hills or something like that.
>
> He's really not on 3 freq's. I see it often.
>
> 73, Dick, W1KSZ
>
>
> On Fri, Dec 20, 2019, 2:05 PM A.J. PAWLOWSKI <kb7kz at msn.com> wrote:
>
>> Don... Please give me a call. I have a screenshot of you working PY2VOX
>> FT8 in which it shows you on 3 audio frequencies simultaneous. Call at
>> 520-909-4999 or email kb7kz at msn.com.
>> 73