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Hi All.
Can I connect the Microphone earth to the speaker earth (Common)? Therefore only use a 4 core coiled cable?

Thankyou
Stu.
:)
 

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You certainly should be able to. Earth is earth or as we say over here "ground is ground".:cooldevil:
 

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Goldwings 4 ever wrote:
You certainly should be able to. Earth is earth or as we say over here "ground is ground".:cooldevil:
Not necessarily! If the microphone input is using a floating ground, or, more likely, if the headset output uses a +/- voltage supply, so that the "-" on the headset is not actually ground, then connecting the two together could not work at the least, and do damage at worst.

In the case of the GL1100 intercom, the headset ground and the microphone ground ARE connected together. I don't know for sure about the 1500.

My suggestion would be to turn everything off, and use an ohmmeter to measure between the headset ground and microphone ground. If you have anything more than an ohm or two resistance between the two, then chances are that they are not sharing a common ground, and I wouldn't do what you're planning. If you see no resistance, or less than a couple ohms, then you should be OK.
 

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no wont work if you turn the volume down on the headset the mic will mute alsoand the mute on the radio console when the radio is on it should mute it when some one talks so you affect the mic also
 

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If the mike ground comes in contact with the ear speaker ground a frightful feedback squealing is evident
 

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Discussion Starter · #7 ·
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Thanks for the help guys, I thought it better to ask. as there are a few comment that concern me I will just have to go and buy a 5 core coiled cable.

thanks again
Stu;)
 
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