Zetron
Part of Codan Limited
Is this your company?
Zetron interview question
Radio technology, wiring a TX & RX cable; transmit Request, CTCSS.
Interview Answer
Anonymous
4 Mar 2014
TX & RX cross from one radio to another (you can't talk and listen all at once). CTCSS is like a tone that codes the frequency, so many mfgr can use the same frequencies.