Thanks! I can not transmits on 60 meters. I have to turn Power Amp off. All 
others transmits OK.73Wilber AB5WW

Sent from AOL on Android 
 
  On Tue, Dec 24, 2024 at 3:59 PM, Rick NK7I<rick.n...@gmail.com> wrote:   Why 
not?

I use the KPA1500 on 60M, at ~3 watts from the K4 to get the legal 100 W output 
(plus or minus antenna gain/loss).

So I’m not running full bore on the driver, no part works hard; but it’s not 
efficient (so what, power is cheap here).

I do the same on 30M (200 watt US output limit), with a little more drive.

73,
Rick nk7i

> On Dec 24, 2024, at 1:32 PM, jerry <je...@tr2.com> wrote:
> 
> Why use it on 60M?  Legal limit is 100W ERP on that band.
> 
>                - Jerry, KF6VB
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