----- Original Message ----- From: "Parker Buckley" <[EMAIL PROTECTED]>

 I've read numerous places about setting the power level
(mine is a QRP K2) to five watts for continuous use like PSK.

For PSK & digital in general your aim must always be a pure signal, that is:

* No audio compression (feed radio via the accessory or data socket),
* No ALC,
* No ALC,
* No ALC.

To ensure best linearity I suggest you set your Power level on the K2 (or any other radio) to the max, then adjust power out using the soundcard controls (some PSK programs have soundcard adjustment built-in).

Although you could run 10 watts, it's essential that you monitor ALC at all times. Myself I would adjust the soundcard input so that you are running 5 watts while idling, a few more watts will not bring much improvement.

FWIW when you have ALC indicated your signal will be harder to decode and you may well be wiping out the band. I've seen a FT-817 user with a PSK signal 500 Hz wide due to overdriving the radio.

Simon HB9DRV
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