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I’m interested in using a QMX with transverters for 4 meters/ 2 meters and 70 cms. But there seems to be a lack of modern DIY kits or designs for them. Any suggestions??

My FT817 has expired and if I can’t repair it ?I’ll be without its higher bands. It’s a complicated design and quite old so spares are a problem. What I would really like to do is move to a situation where I’ve built everything I use which should mean I could fix radios when they break. Hence my interest in transverters.?

Stay safe,?

Steve G0XAR?

Have a look at Paul Wade W1GHZ's site, here is a link to the Transverters page: ?

Paul is a former MSC co-worker and technically and practically very astute and very much into helping other hams.? I learned a lot of solid, practical stuff from him early in my career.

His QST columns and other writings are worthwhile reading.

RF/microwave MMICs really revolutionized the technology of transverter-making, with their stable, predictable properties.?

Paul's innovative PCB filter designs and plumbing fitting filter realizations are another key to consistent results.

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P.S.? I just read that one of the 10GHz MMICs which were frequently used in his designs has gone EOL.? Hopefully a suitable replacement can be found.

Good luck and 73, Don N2VGU

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More sources of transverters and ancillary items:

? I have worked with the founder and current owner, both great hams.

Transverter? manufacturing and sales have been picked up by

Being US-based they may be light on 70MHz stuff but it worth looking into.

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Jim, W6PQL has a lot of useful items, like a relay sequencer, that you might require: ?

I don't see any lower-band transverters on his site but it is worth an inquiry, he communicates well.

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Good luck.

73, Don N2VGU

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You will need a high band QMX+ with 6m to do transverting up to 2m and 70cm.? Failing that 10m had been popular in the past. There are many reasons you won't want yo go lower. When I played with them in the past I have always used the SBL-1 type diode mixers RF fets and MMICs. You will need good quality crystals for the LOs. Lot's of such circuits around. Auto r/f detect T/R switching is the norm. I would start with a 1 or 2W output unit, get it working before boosting the power further up.?