10-02-2022, 03:13 PM
Hi all,
After playing around with baluns, caps and such I declare the build of the Chinese 2m amp pallet done!
I now have temperature compensation in the bias circuit and tuned it for best performance and efficiency,
it now produces 57.6dBm out aka 575w for 4w in at an efficiency of 76%. 2nd harmonic is at -58dBm others way below that.
Now that I am happy with it I need to build it into a box wit associated protection and PTT circuits to make it useful.
Also have to write all this up for others to follow
cheers
Tim
After playing around with baluns, caps and such I declare the build of the Chinese 2m amp pallet done!
I now have temperature compensation in the bias circuit and tuned it for best performance and efficiency,
it now produces 57.6dBm out aka 575w for 4w in at an efficiency of 76%. 2nd harmonic is at -58dBm others way below that.
Now that I am happy with it I need to build it into a box wit associated protection and PTT circuits to make it useful.
Also have to write all this up for others to follow
cheers
Tim