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Bekir, it sounds like you may have your radio configured as an 80-20 meter QMX instead of as a 160-6 meter QMX+. Ron [email protected]> wrote:

After the initial fifteen seconds of 13.8 volts, I switched to 12 volts. Maybe I should try 9 volts. Dave K9SW

I want to do the exact opposite of this. I want to be able to use my QMX+ on all bands, especially the upper bands. However there are no values listed for bands higher than 20m in the Band

Great visual guide to soldering.? Thanks for posting ! Jim WB4ILP

Nice work and very Cool ! Jim

Bernie Poskus, KF0QS via groups.io <hamdan@...> wrote: Never turn it fully clockwise. If there was an intermittent connection and it accidentally went away, you'd destroy the

Adam via groups.io <qrp-labs@...> wrote: Here's a follow-up. I ordered SI5351A, this

Have you tried 12.0V? -Chuck Harris, WA3UQV <K9SW@...> wrote:

Dear Folks: I have finished building the 50 watt amplifier kit for the QCX.? I am trying to run the test on page 66 of the manual which simply requires you to do the following: 1)? Make sure that

Thanks, Chuck. I’ve tried many variations, factory reset, restarts, using SWR meter and dummy load, so no high SWR concerns. Still no output or input. I’ll work on it some more and see what

Mike, /g/QRPLabs/message/131060 ( /g/QRPLabs/message/131060?p=%2C%2C%2C20%2C0%2C0%2C0%3A%3ACreated%2C%2Cm0ktz%2C20%2C2%2C0%2C108865966 ) plus: in a big forum like

Thanks Don, This is new information to me. I did not look beyond the red and black pairs. I did think about color coded wires. I am using 14 gage red and black wire. Those other combinations would

How is the SSB progress going? Can't wait!

BTW here's a good thread on the subject: /g/QRPLabs/message/121907 I'm still searching for the perfect AGC settings lol.

How much current is flowing on the 12v line? If very little then maybe the regulator is bad. If a lot of current is flowing and the regulator is getting hot, then there is a short on the 5v line.

Thanks for this.? I saw that the on/off switch was not well soldered. Fixed that, Now the LCD lights up, but no text (tried turning R47 to no avail).? I read 12v between the input of the regulator

The only issue thats in the "shadows" and not explained is dead pcm1804 IC either on first poweup/DOA or during the use. My qmx+ was in this group. After replacing the IC no issues. Other issues are

Unfortunately there is not yet a firmware control to adjust the output power during operations. The hardware capability is present, so we can hope for a future firmware update that will allow us to

Larry, The output power is affected by the input voltage, within limits. If you have a QMX+ that's built for 12 volts, then the highest voltage you should power it with is 12 volts. The transmitted

I'm on the verge of buying a QMX+; the technology is just too good to pass up!? I had misgivings about the QMX because it didn't cover every band and also because of its small size. ?My camping and