[Elecraft] K3: 630m amplifiers

[Tom Azlin W7SUA]

Hi Don and Alan,

I was thinking one of the slow multi tone FSK modes that are a single 
tone at a time. WSQ is in the same class.

http://www.qsl.net/zl1bpu/SOFT/WSQ.htm

CW would be another mode that would not need a linear amp I think.

On the other hand PSK31 would require a linear amp.

73, tom w7sua

On 7/26/2015 5:43 PM, Alan wrote:
> On 07/26/2015 05:32 PM, Don Wilhelm wrote:
>
>> Soundcard sourced digital modes are really SSB signals and need a linear
>> amplifier.
>
> The one exception might be FSK.  It is constant-amplitude so a class C
> amplifier should be fine.
>
> FSK modes include RTTY and I believe WSPR and WSJT.
>
> Alan N1AL
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