[Elecraft] Problems on 40M with 100 watt section

[Rich McCabe]

Ron,

This was into a dummy load.

I had it into the KAT100 which was disabled and unplugged. So only the 
feedline was left connected though the ATU. Once I removed the KAT100 it 
worked.

With the AT removed I did check power output into a dummy load and got the 
following

160- 131 watts
75- 118 watts
40- 119 watts
20- 54 watts
17- 55 watts
15 -98 watts
12 - 78 watts
10- 99 watts.

So 20 and 17 are down and 12 slightly??

So I am thinking it must be ATU related and not the 100watt amp section.

Thanks

Rich
kd0zv

----- Original Message ----- 
From: "Ron D'Eau Claire" <rondec at easystreet.com>
To: "'Rich McCabe'" <r.mccabe at 1967z28.com>; <elecraft at mailman.qth.net>
Sent: Saturday, March 18, 2006 4:35 PM
Subject: RE: [Elecraft] Problems on 40M with 100 watt section


Rich, KD0ZV asked:

I just noticed that when I am on 40 meters and I am on the 100watt output, I
cant transmit. I think something is resetting the MCU because I see
"elecraft" flash. It works up to 10 watts without any problems on 40, but as
soon as I go above that acts up. All other bands work fine on the 100 watt
part.

I dont see anything in troubleshooting but plan to look through the
archives.

Any ideas

-------------------------

Frequency sensitive oddities like that are usually the result of RF voltages
getting where they shouldn't.

Try transmitting into a good dummy load and see what happens.

Ron AC7AC