What Is An Antenna Switch?

I explain in BASIC terms what an Antenna switch is
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[@bangersnmash4856]

I've looked at both of these, and can't decide. I would be using it for an sdr radio receiver only, from a hf active loop 0-30hmz to a vhf scan pole 30mhz-2000mhz

[@tonypoloney8721]

The CX-20 is a very poor switch. The spring contacts eventually loose compression. Mine don't even have round metal contacts at at the ends of the contact springs.

[@mikikg7506]

i built the same but the SWR changed!what is the problem?

[@Chaostheory1971]

Another good video Professor Rusty :) Quick question what's the difference between CB and ham?

[@irwinmcevoy]

CB (crispy bacon) is just the ham sliced thin and cooked till crispy

[@RSPYT]

CB (Citizens Band) is a free band open to anybody. HAM or armature Banda are only legal to use if you’re licensed.

[@darrengerrard]

What happens if I key up on radio A but radio B is the one connected will it damage radio A ?

[@RSPYT]

Not if it was a quick key up before you realised.

[@joshburdett2638]

Would this work on tvs

[@RSPYT]

Yeah :)

[@renaat9829]

Never use that Italian zetagi junk!
The blue one is oké, can take a 1KW. The isolation between the twoo ports of the blue switch, is at least 50 dB @ 145 MHz and about 60 dB + @ 30MHz on lower frequency's more than 60db isolation. Wat means that u can use the switch safly the other way around 2 TRX and 1 ANT with 500 watt from 1 - 30 MHz. The maximum safe input of a receiver is 10 dBm, prefered is 0 dBm or less! The insertion loss of the blue switch is about 0.2 dB.