-40%
Universal Bandpass Filters for RX or Transceivers "BPF-9", 13.8 Volts, kit DiY
$ 31.15
- Description
- Size Guide
Description
Kit for assembly.Passive Band pass filters for home-made Receivers or Transceivers
Can be used as the additional band pass filter between antenna and a cheap receiver.
People say it pass perfect as PreSelector to PCR100, PCR1000 , SDR, Pilgrim, receivers...
PCB
Dimension is
163x55 mm
This unit tuned for 160,80,40,30,20,17,15,12,10 m amateurs bands.
Rin=Rout=50 Ohm
.
Losses are 1-3 dB. It has RF amplifier with frequency compensated gain(10-20dB),
using one medium power RF transistor , and attenuator -20dB.
The operating voltage for installed relays is 13.8-27V (if you like you can order filter with relays which work 9..18V) .
Passband ripple is abt. 0.5dB inside the band .