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brianh178
Nov 22nd, 2005, 9:17 pm
I have an autocom pro m-1 on my bike. Everything is ok if I'm solo. For some reason when my wife rides and is hooked in the radio keeps fading in and out even when she doesn't talk. I've switched leads and it still comes from her helmet. I was wondering if replacing the boom mic would fix the problem.
Thanks Brian

RaffyK
Nov 22nd, 2005, 9:27 pm
Possible. Adjust the VOX setting first. See if it makes a difference. If not, check the boom mic connection to the headset. Could be loose or you might have a chafed wire.

Colin1952
Nov 22nd, 2005, 9:50 pm
Sounds as though your wife is breathing into the microphone which causes the radio to be muted for several seconds. If you move the mic. away from the mouth you should overcome this problem. If the mic. is further away, sometimes it is harder to activate the talk function. If you blow sharply into the mic. it will activate the speak function. Sounds funny but it works.

autocomtom
Nov 23rd, 2005, 3:30 am
Brian

Typically the passenger helmet gets more turbulence/noise that the riders helmet and so VOX settings should be set to cater for the noisier passenger helmet.

A couple of things worth checking;

1 Does the helmet chin bar have a vent that allows direct air blast onto the back of the microphone, remembering that Autocom’s genuine true noise cancelling microphones have a tuned port in both front and rear such that ambient noises are virtually totally eliminated as part of our true noise cancelling technology? As such direct wind blast to either side of the microphone will fool the VOX. Please try blocking the inside vent/s of the chin bar such that wind does not blow directly onto the back of the microphone, and this will help prevent false VOX operation AND also help with visor demisting as more wind is then directed up to the visor.
2 In some cases excessive turbulence is thrown up from the riders shoulders and from around their helmet and so a chin wind deflector can often help with passenger helmets. Some helmets already have these fitted as standard but if you need one they are often available from dealers or you could make your own.

I made one using a piece of cloth that I folded in half, put it more or less into position where I wanted it and cut oversize about 1” (25mm) around the front of the helmet, then released the cheek/chin inner lining to allow me to tuck the fabric in between the lining and outer shell, then replaced the inner cheek/chin lining to hold it all in place. The combination of both a chin guard and blocking the inner vents can make a massive difference, and then reset your VOX to suit. Or you could just fit one of our open face conversion kits that basically blocks the back side of the microphone and helps with noise/turbulence.

Hope this helps

Autocom-UK-Tom

brianh178
Nov 23rd, 2005, 7:48 am
Thanks for your help guys!

tbl160
Nov 23rd, 2005, 7:52 am
Brian

Tom is right on with the possible solution. I had an identical problem, and it was the microphone picking up ambient noise from inside my wifes helmet.