[Elecraft] [K2] How much AF volts at 1kHz to get full RF power using KSB2?

[Gareth - M5KVK]

Don, Jim
Thanks. I finally got there. Once I removed the Mic from the chain, the
problem disappeared. With 150mV RMS @ 1kHz, I got just over 4W when the rig
was set to deliver 5W. Close enough for me.

The problem is that the fist Mic I use (Icom MH36) and my Heil Proset 5 are
both low output Mics. I'll get an Elecraft MH2 and put a pre amp in the Pro
Set's line.

73, Gareth

On 6 October 2014 21:56, Don Wilhelm <w3fpr at embarqmail.com> wrote:

> Gareth,
> You should find between 200 and 400 mV peak to peak (dependent on the
> particular speech patterns) from an electret microphone such as the
> Elecraft MH2.  That is 70 to 140 mV RMS.
> That is sufficient to drive the SSB output to pull power.
>
> 73,
> Don W3FPR
>
>
> On 10/6/2014 3:57 PM, Gareth - M5KVK wrote:
>
>> I want to remove the Mic as a source of variability but I don’t know what
>> AF voltage should cause 100% of the set o/p power.
>>
>>
>>
>