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Could you please share the test setup you are using to gather this data? Thank you, Stan KC7XE

Is there any advantage of input power sequencing ? I typically turn on the 12V (or 9V) power source (in my case a Talentcell) before pushing the rotary encoder "On" switch. I have 2 QMX+ units and

Jerry, Tony I updated the plot to get rid of the X axis confusion and added extra bands:

Hello Bill Currently the only two things were are waiting for are - Dummy load PCBs - '5351 Synth boards The latter are used in Uktimate3S and VFO kits which are therefore also awaiting their

Hi. I would like to know if someone could make a mesure over the main board between pin #5 on JP206 (microcontroler Board) and ground. Withuot the 2 SMPS connected. My QMX suddenly power off, I found

On Sat, Jan 4, 2025 at 05:51 AM, Chris wrote: "Why would different FETs affect the new SSB firmware?? I understand that the phase and amplitude of the drive the the PA FET have different

I don't absolutely say it WILL affect it (slightly different MOSFET) nor by how much. I say it *could* and if remains to be seen. In my experiments phase pre-distortion made a significant difference

I will try and dig the post out but Hans explained this in some detail on one of the threads when discussing the SSB implementation.? From memory something to with the CESSB being tuned to the

Why would different FETs affect the new SSB firmware?? I understand that the phase and amplitude of the drive the the PA FET have different routes. One possibility is a change in the propagation

Hello Hans, Would you mind listing for the Group which kits are fully stocked and ready to ship immediately without delays? I've had a QDX kit order marked Complete, with no movement for over a

Hi Jerry, The CESSB algorithm needs a very good regulator that does not introduce noise.? I do not believe that could be done with an SMPS, hence the linear, highly precise

Ivan, I guess yes. The PA voltage is ON also in RX mode except during Terminal - Diagnostics. In case of broken BS170 this high current may flow when RXing. There should be a document in the Wiki

Dear all, I need an advice from more experienced users concerning malfunction of my *QMX transceiver, 60-15 m version, software v 1_00_027, PCB ver 4*. I usually use the QMX radio with a power bank

Hi Dave, Like you I built a QMX plus over the holiday, I didn't have any issues with damaged SMD components thankfully but I'd agree with you comments ref the diagnostic tests. The only problem was

Good news. Bits do get flipped.? Enjoy the Q again.? GREG Yahoo Mail: Search, Organize, Conquer On Fri, Jan 3, 2025 at 6:45 PM, Sam Hanie via groups.io<SAMHANIE@...> wrote:

Color me an IDIOT....... It started working...... I went to settings and tried the "Cat Test" button..........And it worked.. Many Thanks. Thanks, Sam

It is disabled. Thanks, Sam Hanie samhanie@... 623-219-8130 [email protected]> wrote:

And make sure you don't have I/Q mode enabled.

got it it is. Thanks, Sam Hanie samhanie@... 623-219-8130 [email protected]> wrote:

I think that's a reminder to check the "Q"(MX" is set to digi mode by double-tapping the volume button until it says "DIGI" on the screen.