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Re: QMX+ build: so close, and yet....


 

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Michael,
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Is it receiving? If not is the link fitted at the Aerial socket?
If all bands exhibit no output and all sweeps are up the swanny.
My guess is CLK2 is missing.
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I had the same problem.
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73
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Ian G4GIR
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----- Original Message -----
From: Michael - WD0OM via groups.io <wd0om@...>
Reply-To: <[email protected]>
Sent: 26/09/2024 05:14:04
Subject: [QRPLabs] QMX+ build: so close, and yet....

First, the good news: IT'S ALIVE.

It accepts power, it does not catch fire, and all the controls work and pass diagnostics.

The bad news: it does not pass transmit diagnostics, and all the different sweeps are wrong.

Attached is a (mercifully short) recording of the diagnostics screen including transmission into a dummy load.?

The most obvious problem is: wattage is 0!?

I'm using a buck-boost that's got the voltage at 12 (this is a 12-volt build). Idle draw is 0.115A. Draw when attempting to transmit during the diagnostic is 0.255, which seems low.

Obviously, some kind of rework will be necessary. What's my most likely culprit to start with?

Thank you all!

Michael WD0OM

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