Well, for under $80.00 I decided to try one of the Transverters on eBay. Woudl I do so again? Probably not! It sits now working only in receive. Yes, I forgot to lower the power and sent 100 watts to it. The attenuator board is not rated for that kind of power nor of course is the transverter itself. Totally my fault. There are threads here addressing the potential problems and components to look at and test. My message here is not asking for help fixing it but to rate it. I'll likely not repair it or will do so when I have absolutely nothing to do and am bored to death. Anyway, I'd rate the units as well built physically but that's it. The drift is really unacceptable! You can watch the drift on the FT8 waterfall and of course hear it when you chase your QSO partner and he or she chases you up or down the band in SSB mode. If you leave it on 24/7 the drift is less but still there. The answer from the manufacturer is "there is nothing you can do. It's not a TCLO!" Well, for a few bucks (or less) more perhaps it should be. Email response is hit and miss. Shipping is right on the money though. You'll get your drifty, don't over drive it by accident or you'll have a 2 meter drifty receiver, transverter in exactly 2 weeks or less. I guess I can use the little box, switch and BNC connectors for something else but it won't be for replacement boards for this less than well supported, drifty, protection lacking transverter. Well, I guess I shouldn't say protection lacking. The attenuator will protect it maybe to 20 watts, 15 max rated. Again, it's my fault that it blew up. Before it did though I was less than pleased with the MAJOR drift. I was thinking about trying to keep the temp constant and see if that helped but I have no further interest in this unit. I just wanted to inform others.