My midland 1001z has power to it but all it does is give a humming sound!The mic. will key up and the tx light comes on but when I release the mic. the humming sound gets louder,is the unit screwed? thks K.P.

#1 ground,#2 go to mic #3 tx #4 rx

1) grnd 2) mic audio 3) trans audio 4) rec audio

Vibrations on the small cb's make the internal circuit boards come loose and its intermitted or will not RX or TX.. Check the antenna with another cb. using an SWR METER.. or have someone check it.. SWR should be free if you take it to them.. to check.. Make sure the antenna, mounts, and coax are ok.. if soo then its in the cb itself .. Email us if you need more help or need the radio looked at, the post office has flat rate boxes cheap nowadays. were in Temple, TX at the CB SHop.

Is the mic good? If there is a problem with the mic, it will not put the radio into receive mode and you will hear nothing.

Also make sure the radio is not on PA mode, or make sure the squelch isn't too high.

there are also times when it is really quiet on the radio and you won't hear any static. keep this in mind.

Hi,my name is John. Start with checking your Squelch and RF GAIN wide open. Check that your antenna is grounded good and no metal objects are blocking it. Turn the MIC GAIN to MAX. Key the Mic, the needle should move or a light should come on. Try another MIC. if it doesnt. Let me know how it does, could be something internal that I can help you with.....hope this was very helpful...

hello have you checked the swr on the antenna have you checked the output of the radio with a power metre it should be reading 4watts max if yes problem might be the microphone make sure there are no wires shortening in the mic socket entering the radio and check inside the mic aswell
cheers and goodluck

Either the microphone is faulty, or there is a fault with the modulator. Try a new microphone or check the connections, failing that take it to a rig doctor.

Could be your mic.. is it an amplified mic that has a battery in it? or a non... try replacing the mic or if it has a battery in it you probably have a dead battery that needs to be replaced..

I had the same (squealing) problem on transmit with the Midland 1001Z when I used it indoors as a base unit. The problem was my power supply: it broke into oscillation when drawing more than 150 mA at 13.8V. The 1001Z draws about 150 mA on Receive, and much more (but only about 900 mA) on Transmit. If using the 1001Z as a base unit, I suggest you power it with a fully-charged car battery indoors, or test your power supply to check if it can't supply the required 1 Amp, approx., on Transmit. It's a GREAT radio, just give it a good power supply. My power supply was defective out of the box, but now I have a good one and get great reports on signal strength and audio quality. Remarkable, for the low price and 3 year warranty. Good luck!

--Sky Junkie / Tucson, AZ / USA

soundwas keying up at the same time.s like it could be one of two problems. a loose wire in the mic or some one near you keyed up the same time as you. if the wire in the mic is loose sodder it. If some one keyed up near you you might have blown the reciever chip.