[Elecraft] K3s SSB transmitting bandwidth?

Don Wilhelm donwilh at embarqmail.com
Tue Dec 25 11:18:51 EST 2018


Michael,

I think the rolloff is not much (in support of those who want ESSB 
operation.  Much of the rolloff depends on your microphone.
Jim Brown K9YC has long advocated reducing the TX EQ below 500 Hz or so 
in order to increase your effective communications power.  An 
improvement of 3 dB or more can be had by reducing the low frequency 
audio since those low frequencies take a lot of the total power and add 
little to communications effectiveness.

73 and Merry Christmas,
Don W3FPR

On 12/25/2018 11:03 AM, Michael Blake via Elecraft wrote:
> When using the stock K3s 2.7 KHz. roofing filter and all TX EQ settings are zero (0) what is the normal TX audio rolloff below 300Hz.?


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