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Thank you again Cliff, I should keep the list handy, Thor is of interest at the moment. 73 rRon VE8RT "Cliff" <ae5zaham@...> wrote:

Yes, Ron. I was over zealous in what I said. Indeed PSK, Throb and a couple others won't for the reason you said. Only single tone modes like Thor, Olivia, Contestia, DominoEX, FSQ, MFSK, Hell, RTTY,

Hi Jonathan The analysis is too simplistic. The filters can be designed approximately using some theory (such as your calculation) but then in the real world the results differ considerably. There

Hi, I am currently in the process of designing a band pass filter for a homebrew CW radio I want to build. I was looking at the bandpass filter design for the QMX and was confused because the passband

Hi all I do think W6CSN's request is fulfilled by the SWR feature in the hardware menu. However, it does need operational convenience improvements as Garrett KC3UNP says. It was already requested and

I find that the SWR feature under the hardware tests menu works very well for tuning (and power level of that SWR test is configurable in the setup menu to boot!), though it’s a bit tedious to

Thanks Cliff, I noted that in the manual that they did not work with PSK31, frequency or phase shift, or any multi-tone modes. Olivia was acceptable, I'm hoping that Thor is also OK, and I may

here's a? design which I believe to be be mature that will take 3mW or so up to? 270 mW or so to drive RD15HH or similar mosfets. No originality? claimed but? it's potentially useful to many ?

Ron, All the digital modes in fldigi, HRD, Wsjtx all work with the QDX, but not with the QMX unless you turn off the Transmit ID function. FT8,4, etc all work with the QMX. 73, Cliff, AE5ZA

Rather than ask only about a particular mode of interest, in this case Thor, has someone put online a list of digital modes that do work with the QCX QDX QMX series? Ron VE8RT -- Ron VE8RT

The QMX has been sold. Thank you

To further clarify, in case of QCX i used with one BS170 and currently with my QDX-M a pair of BS170 one in each side. Both operating with 5Volts -- 73, Barb

Hi Can not reach ProgRock2? Try turning down bluetooth first sometimes it create conflicts on com ports 73 de muhsin TA1MHS

Is the "Hardware Tests" -> "Tune SWR" menu item sufficient for your use case? (%voltage settable in "Protection" menu)

Thanks, Hans.? The tinySA has been on my list for a while.? Now I have a good reason to get one! Eric

The SWR metering and protection are features that really make the QMX a field capable radio. However, from several outings now I’m finding that I would like a front panel means to activate a reduced

Volker, Remove the BS170s. Test for 5 volts at the gate pads when in transmit. 0 volts receive. If good replace BS170s. Maybe consider a diode across L14, could protect against one failure mode. 73

Hi Eric I don't think 'scope FFTs are anywhere near good enough for HF transmitter harmonic testing, and get worse as the frequency goes up. The job needs a real spectrum analyzer. The TinySA is very

High-band QMX rev2 (2024), 9V version, Firmware 017.? Having fun learning about this radio. LPF cutoffs are good, though LPFs 1 and 2 show stopbands a little high, about –30dB.? I get 4W out on

Correct! In my case I smoked out two of the BS170 and ended up with one heathy BS170. QDX is ?still alive and kicking with that one!:) 3x BS170 is absolutely a better option to distribute output