Albert Posted September 16, 2011 Share Posted September 16, 2011 Probably a simple fix here, but I get some high pitched electrical noise from my Passport audio (follows engine speed). The (bike) power lead as well as the audio output run from the front of the bike to the under seat area. Is it more likely that it's the power lead (and can be fixed with a simple noise suppressor in the circuit), or is it more likely to be picking up interference on the audio side. TIA Link to comment
DFWBo Posted September 16, 2011 Share Posted September 16, 2011 mine was picking up on audio cable, had to reroute it, problem solved Link to comment
Danny caddyshack Noonan Posted September 17, 2011 Share Posted September 17, 2011 If the line is shielded, and coming through due to position, small location changes have big effects. Link to comment
Albert Posted September 19, 2011 Author Share Posted September 19, 2011 OK thanks guys. I'll do a little tweaking. Link to comment
bobbybob Posted September 19, 2011 Share Posted September 19, 2011 My Escort also did that at first but a ground loop isolator fixed it. Moving the wiring around had no effect on it. Edit: also make sure you have a mono cable (not stereo) plugged into the Escort, and the other end will need a mono-to-stereo converter before it plugs into the Autocom, assuming you have one. The GLI goes between the mono cable and the mono-stereo converter. Trying to use a stereo cable into the Escort is 1/2 the noise problem. If this is what you are doing, try pulling it partway out and listen to the noise stop when wiggling it around. GLI also needs to be MONO. Link to comment
Albert Posted September 19, 2011 Author Share Posted September 19, 2011 Thanks Bob. Did you just pick up a noise suppressor at Radio Shack? Link to comment
Redbrick Posted September 19, 2011 Share Posted September 19, 2011 Albert..........I wired my Passport by tapping into the accessory socket lead on the left side...No interferrence..05 RT......... Link to comment
bobbybob Posted September 19, 2011 Share Posted September 19, 2011 No, I got it from Escort. It was the right config (mono) and tested to work with their stuff so I just ordered it. Plus I couldnt find one at Shack like I needed. https://www.escortradar.com/store/motorcycle-adapter.html Link to comment
Autocom Matt Posted September 29, 2011 Share Posted September 29, 2011 Could be RF, EMI or ground loop. Do you know if it's a transistor hiss? Listen to some audio clips online for a hint. The hiss is most likely through the audio side if you are using an isolation transformer. Rev bike while moving cable around. If you have to surround cable with good grounded copper shielding near problem areas. I can sell you a small bit if you can't find some local. Save the trouble and use a mono connector. Less movement induced noise and a better connection. Autocom 4036 and 4035 is pre made and a decent cable. Link to comment
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