[Elecraft] How do I generate a "Key Down" to tune an external 6m amp?

[Walter Underwood]

This seems like a kluge to reduce average power. It would work if you are manually tuning a tube radio with analog meters, where the meters would integrate the pulsed signal. Sort of.

It is crazy for digital metering, SWR metering, or an autotuner. In those cases, the instruments are trying to get a measurement with about 10 milliseconds of carrier (one dit at 60 wpm, if I got the math right).

Reducing drive power for tuning is a lot better idea, and works for all situations.

With the K3 (or KX3), you can use the front-panel TUNE function and even set reduced drive with the TUNE Power Level option.

wunder
K6WRU

On Jan 18, 2014, at 5:23 AM, John K9UWA <john at johnjeanantiqueradio.com> wrote:

> Yes Randy is correct. The Tube dealers LOVE people who tune up with a 
> Brick on the Key. Kills your Tubes much faster. Plus you get a much more 
> accurate tuneup by sending dots than you do with a solid tone. It duplicates 
> your actual transmissions using dots rather than solid tone. 
> Its really easy to do guys. Just set your coffee cup against the paddles 
> making dots and turn the knobs on your amp.
> 
> John k9uwa
> 
> 
>> If I am not mistaken I think the "proper" way of tuning the amp is with a
>> pulser or sending a string of dits at say 60wpm not a solid tone.
>> Randy
>> 
> John Goller, K9UWA & Jean Goller, N9PXF 
> Antique Radio Restorations
> k9uwa at arrl.net
> Visit our Web Site at:
> http://www.JohnJeanAntiqueRadio.com
> 4836 Ranch Road
> Leo, IN 46765
> USA
> 1-260-637-6426
> 
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--
Walter Underwood
wunder at wunderwood.org