THAT IS A VERY GOOD SIGN THAT YOUR SWR MATCH IS
OFF....I DONT KNOW IF YOU MATCHED UP YOUR RADIO WITH YOUR ANT.IF NOT
YOU CAN BUY A CHEAP SWR METER @ RADIO SHACK...CHECK THAT YOUR COAX
CABLE IS OK TRY TO REPLACE THE COAX......GOOD LUCK
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is this a new out of the box radio?if so you might need a tech to look at it because it could be an internal problem.It would have to be put on an analyzer and a scope to actually be seen doing what you say.don't worry because it can be fixed.the cost of fixing it is the problem.You have to decide whether you want to pay more for the repair than you paid for the radio. Either way,new or used the answer is the same.
Here is a quick way to test to see if it is the speaker. Use a multimeter and set it to Ohms. Unsolder the two wires off of the speaker and touch the pos terminal on the speaker with the pos terminal on the multimeter on the multimeter. Touch the neg terminal on the speaker with the neg terminal on the multi meter. The meter should spike a bit and might crackle a bit as well. This says speaker is good. So then you know the problem is most likely the Audio Output Transistor (IC) In your radio you will look for IC8 on the board. It will be marked. Looking towards the back of the radio on the right side it will be a fairly long chip. The good news is that you can purchase one and install it if you are handy with a soldier gun.
I would check the radio with an external meter to see if it is the transmitter or the Meter in the radio. If it is the meter in the radio it could have a bad detection Diode or just oout of adjustment or even a bad calibration pot. other wise start looking to fix your transmitter like finals or other similar problem.
Well,some meters are set different than others,to see what is going on,you need a good WATT-SWR meter,but that is not a bad reading of SWR, you can get one at Radio Shack. You can not go by the meter that is on the radio,it,s probably not set right. hope this helps..
There are a few different things that can cause this problem.
1: If it is a power microphone (a microphone that requires a battery).
Try replacing the battery.
2: Broken wires that go from the microphone to the plug that plugs into the radio.You can try gently taking the plug apart and inspecting the wires.
If only one has come loose, you can re solder it to the pin it came from. If more than one has come loose, find a wiring schematic for the radio that tells which wire goes to which pin and re solder appropriately.
3:Have the SWR's checked on the antenna. If the SWR's are to high and the radio has been being used in this fashion, it could have burned up the transmit finals in the radio. If this is the case, you will need to take it to a reputable radio repair facility to have fixed.
Depending on the type of power supply, radio frequency (RF) energy from the transmitter may be 'fooling" it into thinking that you're overloading it. Check to see if there's any discernible dimming of the meter lamp when this problem occurs, if so, the supply is the culprit.
Otherwise, its probable that the final amplifier transistors are overheating, either they are 'leaky' or not properly attached to the heat sink.
sure, the red lead goes to the battery pos and the black lead goes to the battery neg as some cb radios have a reverse polarity idiot diode fitted, go with caution. With a multi meter you can find the neg terminal using the continuity or the low ohms
select on the meter...1 meter lead goes to the metal body of the set and the other lead goes to one of the power leads WITH THE SET TURNED OFF when the meter responds to a contact and shows low ohm reading you have found the neg lead..this lead is directly connected to the fram/case of the set. With a few sets
you need to have the mike connected in order to power up. email@example.com