I assume the measurements with bare K3/K3S were using 100w internal
amp. I wonder how the 10w version of these radios Tx IMD perform?
On 6m, I run with the KXPA100 at 11w output (K3 at very low output)
to drive a 1000w Harris surplus TV linear (which is rated to 1600w
continuous duty). 1000w limit is due to the 50v-50A PS input
limit. On 2m+ I use the 1mw transverter interface output at 28-MHz
on my K3. My 2m 1500w and 23cm 600w LDMOS operate on 50v and I load
to 1-dB output compression point: 2m at 1200w, 23cm at 560w.
Any IMD analysis on the KXPA100?
73, Ed - KL7UW
From: Conrad PA5Y <[email protected]>
To: Michael Walker <[email protected]>, "[email protected]"
<[email protected]>
Subject: Re: [Elecraft] K3--Too much ALC creates energy on opposite
sideband?
I have measured the TX IMD performance of my and 2 other K3S
transceivers. In my opinion it is not possible to have anything other
than mediocre TX IMD performance from a K3S or a K3 at ANY power
level. I am so disappointed with this aspect of the K3S. The mass
market and cheap IC-7300 is better, especially on 6m. In all other
respects I am very impressed with the K3S.
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
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