[Elecraft] KPA100 recommended max power for digital modes?
Jim Brown
jim at audiosystemsgroup.com
Sat Feb 22 02:04:37 EST 2014
On 2/21/2014 7:43 PM, WA7SPY wrote:
> I was looking at the operating manual online and did not see any recommended power setting for operating the amp with digital modes.
Elecraft output stages are very well protected. In general, I feel
comfortable running them "balls to the wall" with keydown modes, with
all the lights lit. With well matched antennas, I run keydown modes at
full power. If the output stage gets warm, the fan will run faster, and
if that isn't enough, the rig will back off the drive.
Remember that the WSJT modes are "weak signal" modes, NOT low power
modes. There is a big difference. We may get lots of distance per watt
and be happy with QRP for easy paths, but for the most difficult paths
(EME, transcontinental 160M), great digital ops pile on the watts and
use their best antennas. I do a lot of QRP, but I also know when to turn
on the big amp. :)
73, Jim K9YC
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