[Elecraft] Psk

[Stephen Prior]

Thanks for the advice David, I shall do as you and Dave KD1NA suggest - at
least that way I suspect the setting of the output level from the soundcard
will be less critical.  With other radios I have owned such as the IC-7400,
it was recommended practice to have the power control at 100W and set the
output power on psk solely by audio input level - it was a bit touchy
sometimes!

I have a fan sitting on top of the heatsink, it's blowing down at the moment
and that seems to cut down the amount the noisy little fan comes on quite
noticeably.

73 Stephen



On 15/12/07 19:32, "R. Kevin Stover" <rkstover at mchsi.com> wrote:

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> I do the same.
> 
> Set the power out at 30W then switch the meter to ALC and adjust the
> audio level for NO ALC indication. Switch back to RF on the meter and it
> just flickers the third LED while transmitting. Nothing but great
> reports. I've got two 80mm computer case fans arranged diagonally on the
> heat sink drawing air through the fins up and out. A small square of
> double stick foam tape in each corner of both fans holds them tight.
> 
> I do use the rigblaster+ interface. I have been thinking of swapping out
> my tired old SB Live sound card for an M-Audio Delta 44.
> 
> 73
> 
> David Robertson wrote:
>> Stephen,
>> I also use my K2-100 on psk.
>> 
>> I find that it is best to throttle down your power to 30 watts with the power
>> control, then adjust you audio drive for just 30 watts out. I also turned
>> audio compression off. I have received very good reports on IMD operating in
>> this manner.
>> 
>> I know your not interested in interfaces but be advised the audio in and out
>> of the K2 are not isolated.  If you are using a laptop computer then there
>> should be no problem but on my desk top system I had to isolate the input and
>> output audio to prevent ground loops.
>> 
>> Hope this helps.
>> 
>> 73 and Happy Holidays.
>> 
>> Dave KD1NA
> 
> - --
> R. Kevin Stover, ACØH
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