n.qth.net] On Behalf Of
> Howard
> Hoyt
> Sent: Tuesday, March 21, 2017 3:11 AM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] KX3 heatsink question
>
> Hi Rich,
>
> The advantages of a real aftermarket heatsink (not the poorly designed
> imports) is rapi
for ProAudio is well worth it.
Best regards,
Jerry, W1IE
-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Howard
Hoyt
Sent: Tuesday, March 21, 2017 3:11 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 heatsink question
Hi Rich
Hi Rich,
The advantages of a real aftermarket heatsink (not the poorly designed
imports) is rapid thermal recovery after each transmit cycle and less
heat re-radiated into the rig. The import with the rounded fin root as
well as others have a less optimum volume to surface area ratio and
Look at: http://www.kl7uw.com/KX3.htm
Prices may have changed. Hopefully links still good.
Combination of after-market heat sink and temp compensation procedure.
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
dubus...@gmail.com
Ed,
The KX3 "wrap-under" heatsink is adequate for most modes. However if
you are using data modes with long transmit periods at power levels
above 7 or 8 watts, you might want to consider an aftermarket heatsink.
Give it a try and feel the heatsink after several transmission periods.
It
I have a KX3 with the new heatsink (S/N 7XXX) and although the heatsink
gets warm during ops, I've not had any issues running the high duty cycle
modes with the factory model. I am not a heavy duty digital mode user, so
YMMV; but I'm avoiding the required surgery that the heatsink would
require.
With some expert help from the Elecraft forum, I'm up and running JT65/9 using
my new KX3.
My rig's s/n is 9403, do I still need to consider upgrading to the after-market
heatsink or the one that came with my new KX3 (9403) sufficient for most data
modes?
tnx and 73
k6sdw
ed
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