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Robert I missed the earlier listing - what are the specs on this, interested here! [email protected]> wrote:

New price - $65.00 Robert ?KR4VT

Okay. I have either read about or experienced this. It could be a soldering issue with the pins that enable this test tone. Or something similar related to pins associated with the sidetone. Since

Curt, thank you. I did all the calibrations a few times and the loud tone remains. = Bill

NOTE its QRPBuilder.com. -- Allison ------------------ Post online only, direct email will go to a bit bucket.

Bill One possibility. When a qcx is newly powered up, it expects to be calibrated. Could this be it?? Did you do the many step calibration of the receiver?? After this is done, the tone should go

Dolly's "Partons" were of equal proportions ;-) -- - 73 de Andy -

...looks like the Dolly Parton version of the poor QMX...

I just completed a QCX Plus 40m kit. All seems well, except for a continuous loud tone around 600 hz when I apply any gain at all via the potentiometer. At the nearly off position, I can hear the cw

The construction issues where all mechanical ones. 73 de Andy, DL1AKP

Sorry, yes I meant 20dB. I have an R&S calibrated test transmitter. I put my KX2 on it, turnt down the power till the signal vanished. Then did the same with the QMX. the difference was everywhere at

Ivan and Group, I notice this also... don't have my AGC settings handy to share. Sounds better w/AGC off. 73 Jay W6CJ <ivan.9a5czi=yahoo.com_at_groups.io_lastradioman@...> wrote:

Hello Andy, how did you compare? Btw 20 dBm are 100 mW. Did you mean 20 dB? How did you measure this? I read about cases with an additional attunation in the rx signal path produced by bad solder

Answered on pico balloon group

Please expand the text in my last post.

Hello, please check at first all the connections of T507. The PA is connected to the signal path all the time. So a faulty PA may affect receiving. Please check the resistance from the drain of one

On my QMX MB with 1_00_019 firmware I have a problem with key clicks, only when AGC is ON. I tried with different AGC settings without success. My current AGC settings are:

Thanks, Allison! Per your explanation, it sounds like the a gap in output of some sort is inevitable because the various outputs share some components of the chip? They surely have to be taken out of

Hello, I am interested in feeding the HF output from the U4B into antenna using a coax cable for testing purposes. What is the expected impedance across the HF feed points on the U4B (300 ohms)? Will

Hello group, after having lots of construction issues with PCB version 1 I finally finished my kit (80m to 20m version). Then testet it and am very disappointed and shocked! The RX sensitivity is very