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23cm interdigital filters


23cm interdigital filters

Filter for atv and ssb for 100 euro, attenuation on 950mhz 60db, on 1800mhz 80db and on the second harmonic 55db

post 19 Jul 2024


Antenna 23cm 1.2 GHz Links

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Project Building a SWR for measuring 23 cm
Here I will show how to use inexpensive components craft box, flea market, etc. to make a device that is suitable for our purpose

Ricetrasmettitore 1 . 3 GHz
Ricetrasmettitore a larga banda per collegamenti packet sulla gamma 23 cm

Simple band-pass filter for 23cm
The design seems to work well; I tried a prototype with adjustable input taps, and found that the input and output tap positions on the lines were not too important

3.4GHz Alford Slot


Antenna switch arduino for icom IC-7300

Antenna switch arduino for icom IC-7300 A solution built around an arduino nano and one of the readily available four relay switching boards

Satellite Antenna Rotator Controller and TRACker

Satellite Antenna Rotator Controller and TRACker ARCTRAC is a portable integrated satellite tracking system

Duplexer 2m-70cm

Duplexer 2m-70cm- Usare un'antenna bibanda 2/70 con due radio separate V/UHF, usare due antenne separate V/UHF con una singola radio bibanda