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which is a better mic-600 ohms or 1000


351wExplorer

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i have an old cobra mic that is 600ohms and a brand new midland 1000 ohms mic... which is better, the higher or lower?
 


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kd5iku

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This is not an absolute answer for this question. Generally speaking, a radio is designed to work at a specific impedence for the microphone. The higher the impedance, the more attenuation on your voice. The best method is to try them both and see. Park near a truck stop and ask for some radio checks.

KD5IKU
 




351wExplorer

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thanks, im going on a road trip on the 11th so illhave plenty of time to talk to truckers
 




pickupman

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actually, the biggest thing to consider is that you'll do better with a matched radio and microphone.

if your radio is designed for 600 ohms, the best mic to use is a 600 ohm mic. that's not to say that a 1000 ohm mic won't work. the mismatch might cause some issues, but in this case, try it and see what kind of results you get.
 




Ray Hutchinson

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Mic impedence (Ohms)

351,

The difference in the impedence of the 2 mics (600 vs 1000 Ohms) is pretty negligible. I doubt you'll see or hear much difference. Just be sure the pin-out for the connectors is the same, i.e., PTT, Mic audio, Ground, etc, all come out on the right pins in the connector, you will be OK. Now, if the replacement Mic was 10,OOO Ohms or something, then you would likely experience reduced audio modulation.
 




351wExplorer

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thanks everybody... i guess i will just try them out and see which i like more
 




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