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Electronic Components and Systems


RF coax connectors are designed to transmit analog signals while minimizing radio frequency RF signal losses
post 01 Feb 2024
Electronic Components and Systems

Antenna Feed Lines Links

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10 80m doublet antenna
is at about 57 feet 17.4m and the feeder is about 60ft 18.3m long almost vertical but comes into the house about 3 ft above ground level

How do I properly feed coax through an outside wall?
a new cable outlet to an outside wall and wanted to find out what kind of drill bit is needed to drill through and feed the coax cable

Low loss Japanese coaxial cable
about having as good an antenna system as you can manage to get the best out of six metres

Of end-feds and feed-lines
The end-fed half-wave antenna can function alone, but feed lines are the norm regardless

Openwire ladder line
Normally there is no need to retune the matchbox when using Ladder-Line


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