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K3's 2-m module (K144XV): Need testers for major performance improvement

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wayne burdick

K3's 2-m module (K144XV): Need testers for major performance improvement

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Hi all,

We've just made a change to the K144XV firmware that dramatically
reduces the incidence of weak receive spurs within the 2-meter band.
Some of our customers who use SSB/CW on 2 meters had pointed these
out, and we traced them to the K144XV's microcontroller (MCU). We now
turn the MCU's crystal oscillator off during receive, letting the MCU
"sleep" until you key the rig, change bands, or cross the 144/146 MHz
boundary. It's working perfectly in our tests.

If you're using the K144XV for SSB/CW and would be interested in
trying the new firmware, please email me directly (n6kr at elecraft
dot com).

73,
Wayne
N6KR

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N6JW

Re: K3's 2-m module (K144XV): Need testers for major performance improvement

Hi Wayne:

I've just purchased a K144XV and will be installing it (probably on
Wednesday). If this is not too far out of your projected testing timeframe,
I would be happy to try the new firmware.

Thanks,

John, N6JW
K3 #936, P3 #597

wayne burdick wrote

Hi all,

We've just made a change to the K144XV firmware that dramatically
reduces the incidence of weak receive spurs within the 2-meter band.
Some of our customers who use SSB/CW on 2 meters had pointed these
out, and we traced them to the K144XV's microcontroller (MCU). We now
turn the MCU's crystal oscillator off during receive, letting the MCU
"sleep" until you key the rig, change bands, or cross the 144/146 MHz
boundary. It's working perfectly in our tests.

If you're using the K144XV for SSB/CW and would be interested in
trying the new firmware, please email me directly (n6kr at elecraft
dot com).

73,
Wayne
N6KR

______________________________________________________________
Elecraft mailing list
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

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Please help support this email list: http://www.qsl.net/donate.html