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2m-6m Diplexer


2m-6m Diplexer

Alignment, The easiest way to set the filters up without a network analyser, is to connect a good 50 Ohm load to the antenna port and adjust the spacing between the turns of the coils to achieve a good VSWR

post 17 Sep 2024


Antenna Duplex duplexer Links

50



Duplexer 144 - 430 MHz
Convogliare su di un'unica discesa il segnale di due antenne

DIY 2m / 70cm Diplexer for Satellite
Here's a small 2m - 70cm diplexer that is good for up to 10W of power, perfect for working satellites with a HT

HF+VHF/UHF Diplexer
The following Diplexer separates the following bands - HF and 6m on one side = 0 - 52 Mc - 2m and 70cm on the other side

HF/VHF Diplexer
One band I've been wanting to activate is 6 Meters, my first challenge was I didn't want to use a coax switch to flip between HF and VHF

HF VHF receiver diplexer
To enjoy the full range of the receiver, I need to change antenna I decided that I need a HF / VHF receiver diplexer


23cm Yagi Antenna building

23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

Voice Recorder

Voice Recorder Gestito dall'integrato in questione ed offre la possibilità di registrare più messaggi per una durata massima di un minuto con buona fedeltà di riproduzione