i am looking for an help that i cannot find the solution.
I have made two cases, In one ( Picture on the right side ) i have just two PSU
one 36v set to 28V to power the SG-Labs 20W Power Amplifier for 2.4GHz and the Big PA by F4VSG.
In the Other case ( Picture on the left ) i have the two PA, one RX filter, the CN0417, one 12V to 5V converter to power the CN0417
and a Bias Tee.
My Problem: is While i am RXing the QO-100 signal, as soon i go in TX also without giving power, the RX signal drops
down until i do not pass again in RX.
If i try to use an external 12V power supply powering with it just the Bias Tee, the problem does not pop up.
I am struggling from several weeks without getting the solution.
Please anybody can help me to eliminate the problem?
Any help will be really appreciated.
If you need more info, please do not hesitate to ask me.
Thanks in advance for any help or suggestion.
73's de Enzo IK8OZV