Hits
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 →
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
50
Convogliare su di un'unica discesa il segnale di due antenne
Here's a small 2m - 70cm diplexer that is good for up to 10W of power, perfect for working satellites with a HT
The following Diplexer separates the following bands - HF and 6m on one side = 0 - 52 Mc - 2m and 70cm on the other side
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
To enjoy the full range of the receiver, I need to change antenna I decided that I need a HF / VHF receiver diplexer
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
RF Inductance Calculator Mean diameter of the air core coil, measured from conductor centre to conductor centre include the wire insulation thickness, if any
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