---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 02/17/04: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:31 AM - off topic - my car radio is driving me nuts !! (Tony Babb) 2. 04:25 AM - Re: off topic - my car radio is driving me nuts !! (Trampas) 3. 08:43 AM - Re: Ground Com Switch (jamesbaldwin@attglobal.net) 4. 11:37 AM - Re: off topic - my car radio is driving me nuts !! (Eric M. Jones) 5. 03:27 PM - Turn Coordinator wiring info. (WHigg1170@aol.com) 6. 07:09 PM - Narco Nav-121 Needle Dead (N27160@aol.com) 7. 08:44 PM - Battery Vs bench power supply (Rick Fogerson) 8. 08:57 PM - Transponder arial location (Rick Fogerson) ________________________________ Message 1 _____________________________________ Time: 02:31:04 AM PST US From: "Tony Babb" Subject: AeroElectric-List: off topic - my car radio is driving me nuts !! --> AeroElectric-List message posted by: "Tony Babb" I have had a problem with my car radio for the past several weeks and it's driving me nuts. Symptons: there's a clicking sound coming from it, sounds like about 4-5 clicks a second. There is no clicking with the engine turned off, the noise starts when the engine starts and stops when the engine stops, however the speed of clicking does not vary with engine revs. The volume of the clicks is not affected by the volume control, when I turn the volume way down so I can't hear the radio station I still hear the clicks at the same volume. I hear the clicks on AM and FM. The clicks always come from the right rear speaker. The car is fiberglass (Corvette). The problem started a few weeks ago and I found that if I turned the radio off and then on again the clicks went away, sometimes I had to turn it off and on a couple of times. Now the clicking sound is always there. Do any of you radio gurus have a suggestion as to where I should start looking? Thanks all, Tony ________________________________ Message 2 _____________________________________ Time: 04:25:59 AM PST US From: "Trampas" Subject: RE: AeroElectric-List: off topic - my car radio is driving me nuts !! --> AeroElectric-List message posted by: "Trampas" Loose wire? Regards, Trampas -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Tony Babb Subject: AeroElectric-List: off topic - my car radio is driving me nuts !! --> AeroElectric-List message posted by: "Tony Babb" I have had a problem with my car radio for the past several weeks and it's driving me nuts. Symptons: there's a clicking sound coming from it, sounds like about 4-5 clicks a second. There is no clicking with the engine turned off, the noise starts when the engine starts and stops when the engine stops, however the speed of clicking does not vary with engine revs. The volume of the clicks is not affected by the volume control, when I turn the volume way down so I can't hear the radio station I still hear the clicks at the same volume. I hear the clicks on AM and FM. The clicks always come from the right rear speaker. The car is fiberglass (Corvette). The problem started a few weeks ago and I found that if I turned the radio off and then on again the clicks went away, sometimes I had to turn it off and on a couple of times. Now the clicking sound is always there. Do any of you radio gurus have a suggestion as to where I should start looking? Thanks all, Tony ________________________________ Message 3 _____________________________________ Time: 08:43:15 AM PST US From: jamesbaldwin@attglobal.net Subject: Re: AeroElectric-List: Ground Com Switch --> AeroElectric-List message posted by: jamesbaldwin@attglobal.net My experience with a ground com switch was in a turbine aircraft where it was used to power the number 1 com radio. It was used to obtain the ATIS, get clearances, monitor the company freq, etc. You didn't have to turn the master on so it was a simple single throw switch wired to the hot battery bus. Art/Sue Bertolina wrote: >--> AeroElectric-List message posted by: "Art/Sue Bertolina" > >can anyone explain a ground com switch, how it is used >and the type of switch to purchase and a wiring diagram >Thanks >Art Bertolina > > > > ________________________________ Message 4 _____________________________________ Time: 11:37:50 AM PST US From: "Eric M. Jones" Subject: AeroElectric-List: RE: off topic - my car radio is driving me nuts !! --> AeroElectric-List message posted by: "Eric M. Jones" >From: owner-aeroelectric-list-server@matronics.com >[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Tony Babb --> AeroElectric-List message posted by: "Tony Babb" >clicking 4-5 clicks a second. no clicking with the engineoff, the >speed of clicking does not vary with engine revs. >The volume of the clicks not affected by the volume control >clicks on AM and FM. >clicks always come from the right rear >speaker. >Tony Procedure: Swap right and left rear speakers (or replace right rear). If clicks follow speaker--The speaker is bad (hope it's that). If not, the wiring to the radio output or the output channel is bad--usually a leaky capacitor in the output stage. Eric ________________________________ Message 5 _____________________________________ Time: 03:27:10 PM PST US From: WHigg1170@aol.com Subject: AeroElectric-List: Turn Coordinator wiring info. --> AeroElectric-List message posted by: WHigg1170@aol.com Hello IM ready to wire up my RC Allen turn coordinator and i don't have a wire diagram for it. the T/C has the three pin connection on the back (Amphenol MS3106A10SL-3S) The turn coordinator is a RCA82A-11. The Pins on the Amphenol Connector are marked A-B and C any help would be appreciated. Thanks Bill Higgins Pembroke Ma ________________________________ Message 6 _____________________________________ Time: 07:09:39 PM PST US From: N27160@aol.com Subject: AeroElectric-List: Narco Nav-121 Needle Dead --> AeroElectric-List message posted by: N27160@aol.com I have a Narco Nav 121. Receives ok, To/From Flag works, but the needle doesnt move off center. Any advice? (Other than garbage can?) ________________________________ Message 7 _____________________________________ Time: 08:44:03 PM PST US From: "Rick Fogerson" Subject: AeroElectric-List: Battery Vs bench power supply --> AeroElectric-List message posted by: "Rick Fogerson" Hi Bob and listers, I'm ready to smoke test the wiring and was planning on buying a power supply but I hate to spend $80 for something I'm going to use once. I have a fairly simple day vfr panel with dual batterys that I plan to just replace one per year so I've always got a fresh battery plus one that is only 1 to 2 years old. So I'm thinking of just buying a new battery now and using it to check out the system. A year or so when I'm ready to fly I'll buy another new one and I'll begin my planned rotation of batterys. Is there any reason that this won't be as effective a way to smoke test the system as with a power supply? Thanks for your opinion, Rick Fogerson RV3 wiring Boise, ID ________________________________ Message 8 _____________________________________ Time: 08:57:09 PM PST US From: "Rick Fogerson" Subject: AeroElectric-List: Transponder arial location --> AeroElectric-List message posted by: "Rick Fogerson" Hi Bob, I've got a xpdr arial question for you. I have installed that little 3 inch long arial with a ball (B&C) belly just aft of the firewall between the exhaust pipes. The arial would be shielded some in the forward direction by the portion of the lower cowl where cooling air exits and the exhaust pipes emerge from the engine compartment. That wasn't a problem when I was going to install the standard frp cowl but now I thinking of trying to build an aluminum cowl. How much of a problem do you think this would be? Thanks, Rick Fogerson RV3 Boise, ID