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Re: Antenna tuner companion for QMX? #qmx
Dear All, thank you for your warm comments and emails. I have read them all carefully and will answer them. 1. I have to admit that about 70% of the interest comes from the US, so yes. I have to
By Krzysztof SQ5IXA · #129437 ·
Re: Antenna tuner companion for QMX? #qmx
hi ATU-10 a QRP automatic antenna tuner developed by N7DDC who developed ATU-100 tests: https://qrper.com/2022/08/joshuas-atu-10-review-update-after-new-firmware-upgrades/ open
By Muhsin TA1MHS · #129436 ·
Re: What else did I ruin? D101 popped on QMX+
Well, I received the new power supply boards, installed them, powered up with 7v and 250mah and I'm still not getting computer to recognize the radio. Tried two different computers, Windows 11 and
By Niklas KKF7KFT · #129435 ·
Re: QMX+ High Current and Self Start
These two posts above have been helpful, thank you Ludwig! Considering the symptoms and when I touch Q104, the radio turns on, I’m leaning that direction as a point of failure. Pressing the encoder
By Damon · #129434 ·
Low power out QMX+
Started a new topic line on a common topic because this may be a little different. Everything seems to work after I chased some of the traces into satisfactory with reheating some inductor connections
By Karl · #129433 ·
Bench supply recommendations? #power
I see some recommendations for types of power supplies to have around when **building** a kit like this. I'm wondering if people would be willing to share specific models they recommend to someone
By Michael - WD0OM · #129431 ·
Re: QMX+ High Current and Self Start
Running diagnostics causes the voltage/current to normalize. When entering the screen, the duty max and voltage for the 5v smps are in the red for a split second and then nominal. Exiting promptly
By Damon · #129430 ·
Re: QMX+ worked first time but low power on 6m #power #qmx
I have remeasured the Power with a scope and a load and the results are about the same. I would like to get the 1W on 6m increased, any ideas? Rewinding the output transformer? Any suggestions
By home@... · #129429 ·
Re: QMX+ power boards installation #power #qmx #QMXplus
Literally just got my replacement power boards in after cooking the first batch, so the timing of your post is cracking me up. I think checking for the short described half way down the page here -
By Niklas KKF7KFT · #129424 ·
QMX+ power boards installation #power #qmx #QMXplus
My QMX+ build is at the step of installing the power boards. I've read, read and re-read the instructions. What I need is any advice that may make it go well that isn't in the manual. Please
By [email protected] · #129423 ·
Re: #QLG3 #QMXplus QLG3 troubleshooting - is there a manual? #QLG3 #QMXplus
That was it.? And it locks indoors in a minute or so. I put the jumper on the underside of the board so there's no chance of shorting to the connector. 73, Mike KK7ER
By Mike KK7ER · #129422 ·
Re: QMX+ High Current and Self Start
Damon, it looks like your contoller is running. So please establish a terminal session and check the Diagnostics screen. Maybe there is an overload at one voltage rail. You will find information about
By @Ludwig_DH8WN · #129421 ·
Re: #QLG3 #QMXplus QLG3 troubleshooting - is there a manual? #QLG3 #QMXplus
I have the same problem with my QLG3 / QMX+. I the antenna was near a window it would sync after about five minutes. Over the past few weeks the sensitivity has gotten to the point that now it won’t
By Mike Krieger · #129420 ·
Re: Antenna tuner companion for QMX? #qmx
As Don N2VGU said. But even if the feed point is somewhat separated, while ideally the tuner would be at the feed point, it's good to at least be able to match it to the radio somewhere. The short
By K O K3OX · #129419 ·
Re: Why make your own radio?
In one company I worked for in the 80's making audio filters we were one issued with a componenet "Prats" List. I think they meant a parts list ;-) Prat - British English colloquialism for overseas
By - Andy - · #129418 ·
Re: Why make your own radio?
Mr. Pastry? That was before we had TV.
By John Rabson · #129417 ·
Re: Why make your own radio?
Those of us of a certain age will recognise Miss Print as a character in the Mr Pastry TV series on Brit TV
By Gareth Evans · #129416 ·
Re: #QLG3 #QMXplus QLG3 troubleshooting - is there a manual? #QLG3 #QMXplus
You were not the first....and won't be the last! Har, har! Did not EVEN think of that jumper! -- 73 Karl KI4ZUQ
By Karl · #129415 ·
Re: #QLG3 #QMXplus QLG3 troubleshooting - is there a manual? #QLG3 #QMXplus
Thanks, Greg. I'm not sure how I missed that! Indeed the jumper is missing! I'll fix that tonight and check it. 73, Mike KK7ER
By Mike KK7ER · #129414 ·
Re: QMX+ High Current and Self Start
Also, once I push the knob to power down, pushing again dumps an additional volt and no boot up. The current draw is latch until I remove power and try again.
By Damon · #129413 ·