What Kind Of CB's Are You Using...
#51
"what can be done with a cobra 29 LTD? i want it to me able to key up over other car raidos? what do i need to do? should i just sell it and get a Galaxy DX73V?"
Well, let me start by explaining something. I'm a retired USAF Radio Maintenance Tech and I'm not trying to sound like a know-it-all. But hogrunning asked for it...
You have to understand the frequency range of CB radios is in the 29Mhz range and stock radios are limited by the FCC on power output. But, they don't necessarily monitor individual's radio power output unless you just happen to be in the area of one of their routine area sweeps. CB shops can fine tune radio power out and receive signals for optimum performance. They can also disregard FCC regulations and tune for max power output. This has a negative affect on radio reliability and longevity but is way more fun. That's why people buy an amplifier to boost power out. It'll save your radio from overworking and possibly burning itself up. Now for the weird part. Regular car radios operate in approximately the 86-108 MHz in the FM range and in the 535-1605 Khz range for AM. (Not exact figures but close enough.) Your CB radio is now where near the frequency range of the car radios. The only way you'd be able to key up and have your voice come over a car radio is to over power the filter and receiver of the car radio. Even if you were able to do it, the car radio shouldn't be able to change the CB's radio frequency signal back into an audio signal so they could understand it. I'm not saying its impossible, I know weird things happen in electronics, I'm just saying theoretically it's not likely.
Well, let me start by explaining something. I'm a retired USAF Radio Maintenance Tech and I'm not trying to sound like a know-it-all. But hogrunning asked for it...
You have to understand the frequency range of CB radios is in the 29Mhz range and stock radios are limited by the FCC on power output. But, they don't necessarily monitor individual's radio power output unless you just happen to be in the area of one of their routine area sweeps. CB shops can fine tune radio power out and receive signals for optimum performance. They can also disregard FCC regulations and tune for max power output. This has a negative affect on radio reliability and longevity but is way more fun. That's why people buy an amplifier to boost power out. It'll save your radio from overworking and possibly burning itself up. Now for the weird part. Regular car radios operate in approximately the 86-108 MHz in the FM range and in the 535-1605 Khz range for AM. (Not exact figures but close enough.) Your CB radio is now where near the frequency range of the car radios. The only way you'd be able to key up and have your voice come over a car radio is to over power the filter and receiver of the car radio. Even if you were able to do it, the car radio shouldn't be able to change the CB's radio frequency signal back into an audio signal so they could understand it. I'm not saying its impossible, I know weird things happen in electronics, I'm just saying theoretically it's not likely.
#52
#53
I am currently running a Galaxy 949, with a Galaxy 350 box that was tuned out before I got it. The box has upgraded caps, so it "theoretically" swings 425 watts.... My antenna is a 102 stainless whip that is grounded to the frame--big wire running to the frame and connected to the stainless steel mounting plate--and mounted on the tool box. The radio and box are matched. SWR's are 1.1. I have a Galaxy 88, but it needs some major work, and the 949 is doing the job just fine for right now, especially since the skip is down due to low solar activity. I feel good to talk 12-15 miles right now. I like it when the skip rolls and I talk to Sacramento on my way to work--Butte, MT.
#54
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