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D4D

Bryan Brauer
 

How would the D4D pair with a 10 watt linear amplifier like the kit offered by QRP Labs?

Bryan B. Brauer, PE
Consulting Engineer

Adam Rong
 

Bryan,

It is not recommended as the DSB signal spectrum is not clear due to Inter-Modulation Distortion. It may cause serious adjacent channel interference if you add a PA. Personally I think 1-watt is more than enough for FT8, especially for 20m. BG7IKK already achieved 2 QSO's over 9000km.

Thanks,
Adam

On Thu, Jul 18, 2019 at 11:00 PM Bryan Brauer <bryan@...> wrote:
How would the D4D pair with a 10 watt linear amplifier like the kit offered by QRP Labs?

Bryan B. Brauer, PE
Consulting Engineer



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Thanks,
Adam Rong