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Jack, I have been having a similar issue, and found I got wider. smoother curves on 80 meters with my QMX+ if I configured the band edges closer to the actual legal band edged, then set the center

Very often when I do a Single click to change mode it changes band instead. I was wondering if there’s something I can do to improve the situation. ?Is this a hardware issue or a firmware issue? Is

Hey Scott, we're practically neighbors! We should get together to compare notes over coffee or something. It would be good to do some audio quality QSOs with you because you're local! Mario

Hello Hans! My QMX works great with 1_01_003 firmware. I've calibrated it and SSB reports are very good. Thanks! Few problems: 1. Wattmeter indicator looks like very slowly responding to actual power

I'm still getting a weird phase error plot on 80m. It stops at 36%.? U shaped with near right angles at the corners. I tried adjusting the band config parameters, moving the centre Freq around. Still

I forgot to add that with the changed centre frequency and smoother plot on 20m, the transmitted audio sounds as good as the other bands now. Cheers, Glenn VK3YY.

Adam,? I had a similar wierd short plot on 20m (see earlier post on earlier beta thread with audio clips) which resulted in distorted transmit audio on 20m only (the other bands were good).? I found

ON is default.

What is the factory default?? I must have fat fingered something.

TNX Hans. 160,? i37 turns is about all you can wind!

reading this I am not near my shack so I can not look up the HAMLIB version but I did update WSJT-X and then went back to the previous Hamlib Version. and I used a different USB port. That changed the

I think that's just a cellphone mount for a camera tripod, along with a small tripod accessory bracket.? I have one that fits my QMX nicely.

You don't need yo use that slot, but you can if you want.? There are several additional empty slots, just scroll further over. But you will have to change one of the existing LPF filters to work on

Stan and Jeff - thanks for the hints on how to proceed. Got a trout fishing day coming up on Tuesday so it’ll be Wednesday before I can get back to the rig. Will post back results. -- Jim /

Hi George I tested it extensively. The outputs (power in watts) is the same for the shiny black toroids. 73 Hans G0UPL http://qrp-labs.com https://www.buymeacoffee.com/g0upl [email protected]>

Hi All, Are the transmission outputs on Rev. 3 boards with shiny black toroids the same as previous versions? If anyone has tested these please reply. TNX and 73, George K3GK

Tony's, The fix Hans put into the SSB firmware to avoid blown finals is to periodically give it a rest so the finals can cool down. If that does help (and my impression from forum reports is that it

Evan, Had always assumed that topology of those filters would present a high impedance to all harmonics. I've attached an LTSpice simulation for the output LPF's on 80m as used on the QCX,

Thanks. The jury is still out for me since I have not managed to get good results with SSB yet. The microphone I tried worked but the audio was noisy and sounded distorted. I decided to order the

Hi Tony, It’s good to hear that the calibration using TN0110 was similar to that of the BS170. I was initially concerned about SSB performance but when Hans mentioned his calibration technique, I