...............https://www.qrz.com/db/F6EUQ............................................https://www.qrz.com/db/VE2EK ...........................https://www.qrz.com/db/9Q1EK................................ https://www.qrz.com/db/ZS1II

Friday, December 25, 2020

QO-100 13cm Inter Digital Filter

 I have a  NMRF 2450MHz Band-pass Filter Central frequency: 2450 MHz for WiFi.
and I found loss:
2.400 Ghz = 5.2dB , 2.409 Ghz = 4.7dB.


I have also couple of WI-FI around me near 2.450 Ghz and this BPF is is not effective..
So I'm not satisfied with the BPF NMRF 2450, I tried to made a new one on 2,4 Ghz for QO-100.

Several months ago I built 23cm Inter digital filter  for 1296.2Mhz with succes (0,85dB loss)
But with my homemade new 13cm BPF,  I have about 2.7dB Loss between 2.400 to 2.409. Not really satisfied again, I have to start experimenting again.

(Inspired by DD1US, DL3NQ and VK3UM  Inter Digital Filter Design) 


 



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