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Re: QDX only powering up when USB is connected
I received them from QRP LAB. I had to bore out the housing hole with a needle file. -- 73, Oleh, UY2ZA
By Oleh I2/UY2ZA · #118032 ·
Re: oscilloscope use
Bryan:? Use 10X probe setting whenever possible, most probes have lousy frequency response in the 1X position.? Compensate your probes to their 'scope channel prior to use. 73, Don N2VGU
By Donald S Brant Jr · #118031 ·
Re: oscilloscope use
Thanks Guiseppe, I have been exploring www.tek.com/en/support/learning-center ( http://www.tek.com/en/support/learning-center ) Its pretty informative. I still have not learned what the bnc-cable with
By Bryan Curl · #118030 ·
Qmx v2 high band low power
Hi, i assembled qmx high band v2, year 2023, but i have low power RF filters sweep and power 20mt :-14 power 2.5w 17mt:-4 1w 15mt:-10. 0.6w 12mt:-9.5.
By Giovanni Ilari <giov.ilari@...> · #118029 ·
Re: oscilloscope use
HI Bryan, Tekscopes and Tekscopes2, look on groups.io Also EEvblog forums. There are certainly others but these have more than enough info. Giuseppe Marullo IW2JWW-JN45RQ
By Giuseppe Marullo[iw2jww] · #118028 ·
oscilloscope use
I finally replaced my oscope which I foolishly sold years ago. but struggle to remember how to use it. does anyone know agood online resource to study up on using one?? im not taking about how to
By Bryan Curl · #118027 ·
Re: QMX - Mid-Band
I don't think Hans will commit to the month or even quarter. I am going on the basis that Q4 2024 is the earliest when such option might be available. Considering this, I am currently slowly building
By Marek SP9TKW · #118026 ·
Re: 50W PA Input SWR 3 and up! What can I mess with?
Hi, what you can always do is to add a 5W 3dB attenuator to the PA input to lower the worst VSWR to 2:1. Or you can change the internal 3dB to a 6dB attenuator. In both cases you will need a double
By Bojan Naglic · #118025 ·
Re: Blown away by QDX!
That said, after fixing my ground issue with the QDX - see my other newer message on this issue - I'm now operating FT8 from my Fire Tablet with FT8CN. Yay!
By Volker Kerkhoff · #118023 ·
QMX - Mid-Band
Hi, I am about to order a QMX Kit but I would love a Mid-Band (40-10 or 40-15m) version. I know that are some of you, who modified a QMX for mid-band usage but I will wait for an "official" mid-band
By CoolDuke · #118022 ·
Re: QCX WARC Party - February 2024
Hello Peter, welcome and thanks for joining us. It was one of the busiest WARC Parties for long. I had 6 QCX/QMX and I think there were even more. Also tha band was quite open. I later worked VK2 on
By Martin DK3UW · #118021 ·
50W PA Input SWR 3 and up! What can I mess with?
What did I do wrong? I built my 50W PA for 20M - This is my third QRPLabs kit, having successfully built two QMX first time 'round (high and low band versions) so I get the idea of how the manuals
By kontraptioneering@... · #118020 ·
Re: QDX only powering up when USB is connected
The power connector comes in different lengths. The one available from QRP Labs is correct, but I also had some I bought from another supplier. I made up a longer cable using one of these without
By Rowan G0KLH · #118019 ·
Re: IQ Output Question
Jim, IQ mode transforms the QMX into an experimental SDR receive front end so a 48KHz receive bandwidth may be shown and tuned using CAT. Any mode may be received within the 48KHz bandwidth. It is a
By Alan G4ZFQ · #118018 ·
I cant disable 5M band on Japanese Limit Enabled mode. #Japanese #qmx
Hans-san;? thank you for the nice radio. I want to disable 5M-band on my QMX in accordance with the Japanese regulation, however, it is still activated even though I enabled Japanese Limit on the
By jg1snx@... · #118017 ·
Re: #qmx #firmwaare 1_00_016 release (bug fixes) #qmx #firmwaare
It does not seem ridiculously short to me but I would still try to play with lengths and counterpoises. Yannig F4IUJ
By Yannig - F4IUJ · #118016 ·
Re: Izmir, Turkey via QMX #qmx #ft8
Well done Rick!! 73 Dino VE7XDT [email protected]> wrote:
By VE7XDT Dino · #118015 ·
Re: #qmx #mod Modification for correct grounded PTT output #qmx #mod
Hi Chris, all Yes that works too. We started adding the wire to all assembled QMXs here, and we're just using a capacitor lead offcut. There's space for it to easily fit between the resistor and
By Hans Summers · #118014 ·
Re: #qcxmini Can't adjust I-Q Balance, Phase Lo or Phase Hi #qcxmini
Thanks Ron. I'll give it a try. Can I use the magnetic toroid wire and just clean the ends? Or do I need coated wire? If that doesn't work, I'll send it to an expert/you ;)
By Pat K7GUD · #118013 ·
QMX rev 1 high band?
Looking to build a rev1 PCB for high bands. Has this been done? Is there a cook book for this? -- 73, Dan? NM3A
By Daniel Walter · #118012 ·