[Elecraft] KAT500 QRP mod

Mike Dodd mike at mdodd.com
Tue Apr 29 23:21:20 EDT 2025


On 4/29/2025 9:13 PM, Mike Herr wrote:
> Anyone mod the KAT500 for qrp? I'd like to use it at 1 to 100 watts.

What modification are you looking for? Are you using it with a K-line 
rig like the K3 or K4? If so, you can train it at multiple segments 
across all bands, and then it will automatically tune to the rig's 
frequency without any RF being present (in the MANual mode, anyway).

IOW, once trained, you can use the KAT500 with any RF power level.

This is how I use my KAT500. I _never_ use it in the AUTO mode because I 
don't want it to start clattering its relays to tune when I start 
transmitting on a new frequency. I turn the VFO, and the relays actuate 
for half a second, and I'm ready to go.

73, Mike N4CF



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