Re: KPA500

Posted by Eric Swartz - WA6HHQ on Feb 14, 2012; 3:50pm
URL: http://elecraft.85.s1.nabble.com/KPA500-tp7281668p7284301.html

The KPA500 fold back point in firmware is an SWR of 2:1 at its rated
output of 500W.  (This is based on reflected power and will occur at
lower SWRs if the amp is operated above 500W) At that point it first
inserts a 3 dB input attenuator and flashes the fault LED. (This is a
soft fault.) Slightly reducing drive will reset this back to full gain.

What rig are you driving the KPA500 with?

73,

Eric
---
www.elecraft.com


On 2/13/2012 11:51 AM, Don Etters wrote:

> The KPA500 is a great Amp. but it does not like SWR over 1:5 –1 an band width seems narrow . How have you handled this with you antenna’s . Is anyone using a tuner any suggestion will be apreciated
>
> Don
> W4DEE
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