SDR Band Pass Filter
I lost one cap, it shoots away when i was opening the strip, i never found it again. The components are very small HI.
The first part is:
Results of testing this stage !
I don't test the switches IC's, on this moment, because of the possible static discharge. I wait with the test after all the other stages are compleet.
Now testing this stage.
Here I make a combination test of the switches and transformers.
Band 1 : 1.8 - 4 Mhz
Band 1 is finished, started on Band 2. I must wind some coils first.
After winding all the coils i tested and measured all the coils with an L-C meter on the club ( thanx Edwin ) and finished the BPF PCB.
So this BPF is finished and on the left site you see the connecting wires to the USB connector.