Qmtech Zync 7z020 board pt.2
No it’s able to transmit:
No it’s able to transmit:
I was trying to run it with AD6645-105 and overclock it to 122.88mHz, but ADC chip was dead 🙁 Ordered new one
Replaced inductors with non-smd: 160m: New: 80m: Old: New: 40m: Old: New: 30m: Old: New: 20m: Old: New: 18Mhz: New: 15m: Old:
There is some tuning needed, but almost nothing to solder anymore, just 2m filters mods required. And all works.
There are some place for modifications and tuning, but… assembly for big wolf is finally finished… I hope I’ll never repeat it
SWR was increasing and power was lowering. Was trying to figure out whats wrong… Finally…
No active cooling. Also there are no feedback circuits on both stages and untuned bias on the second.