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You don't say which radio you have (and I don't have any schematics with me) but I suspect that the IC which is driving the BS170s may be damaged/weak and not driving the FET gates sufficiently. The

I’ll let other people more intelligent than myself chime in, but at first glance, I’d say your results are very comparable to mine. Your BPF is soldered a little different than mine and if I

Thanks for showing me yours, W0WLY! Now I'll show you mine. Hopefully others will lend some advice to me too. The good news is my QMX Rev. 1 build is functional right off the bench. The bad news is

It looks like I got the same problem with my QMX(12V version): While using 9V, tx ?current of abt 1.2A with low power output (1-2W).

The QMX I’m using is on version 13 I think. Is it advisable to upgrade to the most recent version? Thanks; Jim WX8J

Paul, I have Prusa Mk3 printer. I can print it for you for free. You will cover just postage. Send me the .stl or gcode file. 73 - Petr, OK1RP -- B: http://ok1rp.blogspot.com YT:

Ivica, there are several reports in the forum about the same situation. Often the controller was the broken part. Hard to replace and you would need a flashed controller from QRP Labs. You may remove

It worked perfectly, I just had to reset the cell phone to take the hardware changes. In QMX it activates the ptt but in the Xiegu x6100 it doesn't because it doesn't have vox!! 73

Sorry. I see yoy have already done that. [email protected]> wrote:

Hi Nothing will happen till the firmware is flashed. Power up and connect USB cable. You will hear the Windows sound of USB connection. Look for the QMX as a flash drive. Then drag the unzipped FW to

My measures on pins VDD and GND are in ohm values, so mainboard issue. If i fix that then i will do offline test for the SMPS just to be sure. Thank you for the txt.

Today I received the iPhone to camera adapter but the connection with the QMX has not worked. It is as if the application does not recognize the USB port, enable vox but since there is no connection

Good to know that amps data, i started around 150mA and i did move it to 200mA when i started to get pis#!$@ off. 9? vs 12 makes difference for power amp, lucky me i did not get that far Hi

VDD to GND Measures 2.6 ohm :( VCC to GND Measure over 10k Yes Rev.1 (V1 titled different hi) Measureing done on bare mainboard (no front panel, SMPS etc) Since i there is no clear instructions

Thanks, Steve. Always a good reminder. I never give the amp more than 3 watts. I seldom push it to 50 watts out anyway.

I had to replace the BS170. one oft them was defective. After replacing all 4 BS170 The output Pwr is dramatic decreasing with frequency.? 6W at 160, 2W at 80, 60, 04W at 40, 0.3W at 30 and then 0W

Like any small production line, it can be influenced by local holidays, people getting sick or their families becoming ill, schools/colleges starting the winter semester and other things. Give it a

Thanks to all for the suggestions and links for 3D printing 73 Paul w2eck

Joshua- I emailed you off line with the further details. 73 Paul w2eck