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23cm interdigital filters
![23cm interdigital filters](images/23cm-interdigital-filters.jpg)
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 →
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
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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 a larga banda per collegamenti packet sulla gamma 23 cm
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
![Antenna switch arduino for icom IC-7300](/../antype/ch45/images/antenna-switch-arduino-for-i-com-ic-7300.jpg)
Antenna switch arduino for icom IC-7300 A solution built around an arduino nano and one of the readily available four relay switching boards