Found an old Maxon 27SP walkie talkie at a junk shop in good condition and working. Tested it connected to a base station antenna and people I talk to tell me it works well. It is however missing it's flexible antenna. Where oh where can I find a replacement? Thanks, Glen
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In order to test this unit you will need a power meter with a dummy load. connect the power meter and turn on the unit, key the microphone and look at the power meter it should have a reading of < 4 watts PEP unmodulated and = 4 watts PEP modulated.
If you do not have this reading the RF transmitter in the CB might be malfunctioning. You will need a RF generator, a power meter with dummy load, oscilloscope and a multimeter to troubleshoot this problem with. If you do not have or do not know what this equipment is or how it works, please take your unit to a CB repair shop.
Open up the radio and look inside of it towards the front of the unit, there should be a small circuit board mounted either in the front center or to either side of the radio. This will be the board for the weather channels, check the all the wires coming from this board and make sure they are connected on both ends, if they are then look on this little circuit board and you should see some small components with tiny slots for a screwdriver to fit. these are the adjustments for the receive function of the weather channels, slowly turn the little slot with a small screwdriver little by little one by one and you should notice some kind of change in the receive on these weather channels if so keep slowly adjusting them until optimum receive level is obtained. If you feel this proceedure is beyond your skill level then I suggest that you carry it to a local CB radio repair shop. If you dont have a local repair shop just go to a truck stop along any interstate and ask the employees or even a trucker if they know where a cb repair shop is and I feel sure there will be one within a few miles of your location. Good luck with your problem.