Hi John,I was thinking the same thing as a solution Dwight. Just be sure you
place the pad after the T/R relay or the pad will be in the receive path.You
can try it before the T/R relay to see how it works before opening up the amp
to insert it after the relay.I'm guessing that this might void your warranty.
Talk to the SPE folks and see if there is an adjustment to reduce the gain to
allow you to drive with 13W in the medium power position.There are enough
people using K3s with their amp that this has probably come up before. 73,Gary
K9GS
-------- Original message --------From: John Simmons
<jasimmons@pinewooddata.com> Date: 11/16/19 1:55 PM (GMT-05:00) To: Cc:
amps@contesting.com Subject: Re: [Amps] K3 Drive Levels and the SPE 1.3K-FA
Sounds like you have had some expensive learning experiences. The easiest
solution is to put a 2-3 dB pad between the output of the K3 and the input of
your amp. Look on eBay; you can find various combinations of connectors and
loss ratings. They are not expensive.-de John NI0Kdgb wrote on 11/16/2019 12:46
PM:> I run a lot of rtty and digital with my K3. I always set the amp to > the
mid range getting 8-900w out. It takes only 8-11 w drive from the > K3 to
accomplish that.>> Note: SPE recommends to run the amp in Mid Range for digital
> operation. When I first got the amp I made the mistake of running it > in the
high range and melted the copper heat sink, which was not > considered a
warranty repair, and was an expensive lesson learned.>> Over the course of the
3 yrs. that I've owned the amp, I have blown > 4 LPA's in the K3 running it at
8-11w. With latest repair the tech > informed me that the "LPA is not rated for
continuous duty at upper > power levels (like the digital Modes)" They
suggested running 13w vs > 11w so the LPA wouldn't be used. If I do that it
over-drives the SPE > in the mid-range.>> What is my suggested recourse?>>
thanks 73 Dwight NS9I>> _______________________________________________> Amps
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