try pressing the mic then turning the knob on the meter. But it sounds like you need a new swr meter.
Speaking of which me and gamekeeper james are about to go up to brill in a bit to DX with our CBs lol. If helps you can swap out just the CB unit from your rig with me or gamekeeperjames to see wether that's your problem. Or mic unit etc.
That only leaves the microphone or a blown output inside the CB. Usually caused by trying to transmit with no antenna attached.
Even if the earthings non exsistant the needle should swing when you key the mic the fact it doesn't means that the meter or the lead from the meter to cb is knackered or the cb isn't transmitting anything.
if it's all working on the receive side of things then it sounds like your not transmitting.
No **** Sherlock!
who could we get tur play Pikey
Yu win!!