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Dummy load maybe?

I got the gibberish as well.? Now I am nervous about broadcasting it. Is there any way to play back the message without transmitting?? When I try it in practice mode, it won't play?

I also got gibberish characters.? I am a little nervous about broadcasting them again, and can't figure out how to play back the message without transmitting.? When I try it in practice mode, I

I see power and SWR displays with my QMX+ firmware 1_01_003 in CW, digital, USB and LSB modes. I don't recall it not working on 0_27, I would probably have noticed. Have you configured it

Might not be the issue but .... Just the other day I installed the latest version of FLDigi on one of my Win 11 laptops. Then both the new and old versions of FLDigi AND WSJT-X quit recognizing all of

After playing with CW filters, I have a few comments... When a single (not cascaded/compounded) 300 Hz or 500 Hz filter is selected, the ultimate rejection is not great. I can still hear a moderately

Hi Braden Doesn't show on my pre-assembled unit, either. But since they haven't I've stated multiple multiple times that the firmware and the operating manual for QMX and QMX+ are the same. Where

Good point. I probably didn't run the sim long enough for that effect to show up. Tony AD0VC ________________________________ Sent: Thursday, April 3, 2025 7:13 AM To: [email protected]

Yes, probably so. Still, I might play with the idea a bit more. It's all part of the fun. Tony AD0VC ________________________________ Sent: Thursday, April 3, 2025 7:35 AM To: [email protected]

Doesn't show on my pre-assembled unit, either. But since they haven't bothered to put out a QMX+ operating manual, I can't be sure it's supposed to show.

Hi Braden The QMX+ has its own assembly manual. The operating manual is the same for QMX and QMX+, and any differences between them are identified where they occur. 73 Hans

Hi Tony In my experience, practically there are undesirable effects including loss of bandwidth (meaning reduced power at higher frequencies), lower power output and lower efficiency. It's my opinion

I didn't even know that the clock settings could be preserved, or that there is a place for a cr2032 battery in my QMX+. I didn't see anything about it in the manual, but of course the Plus doesn't

Thanks for your input Dave (and Jeff).? It's good to know my QMX+ is not too far out of line with others.? ?I am not losing any sleep over the lower output on the higher bands, I was mostly

Good idea! Though I'd think a DC bias at the gates of 0v would mean the 5v swing is now going from -2.5v to +2.5v, not enough to fully turn on the BS170's. Perhaps that 2k should go to 2.5v when TX is

Thanks for your encouragement Dave. ?I need to learn to remember the highs rather than pondering n the lows! I’m looking forward to trying to get up to speed n this hobby. Paul G8MAD

Hi Stan Thanks for your reply. It didn’t occur to me to recheck the battery voltage but it still shows 3.15V on my dvm. I reinserted it ensuring good contacts with the positive pins of the holder.

It occurred to me that the Interface between the ACT08 drivers and the BS170 gates could be AC coupled. A quick simulation with 100nf and a 2k to ground on the gates shows no ill effects. The

Check all the elements connected to the VDD rail and all the places where the VDD rail goes. With some luck you will find a tiny solder whisker or a tiny part cut from an element during construction

Not so much in the moment. Maybe I will do a test using a cheap evalboard containing a STM 32. I want to check what will happen in case of VDD = 4.5 V or so. Will it stop? Yes, if not it's no proof