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Audio Systems/Car antenna problem

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Question
Recently bought a power antenna for my car.

After it was fitted by the supplier (Auto One)
- it would not receive any station and they replaced it with another.
Now, the replacement gets two FM stations and zip on the AM band - not even the local AM about two klicks away.

The radio works perfectly with the old non-power
job.
The new one (which goes up and down perfectly, you beaut!) is completely RS for reception.

The guy at the shop is head scratching, I'm doing somewhat similar and we are both wondering where to go. I mean it's only a lump of steel that picks
up RF, isn't it?

It's an Aerpro model AP4 BTW.

Any ideas.........Thanks Don  

Answer
HI Don.
The antenna is just a steel rod that picks up RF, or as we call it in the trade, "a twig", sticking 6 feet of cable in the RF socket of the head unit and chucking it across the roof will pick up most stations, it's that technical and a trick I suggest if the antenna is suspect as it takes the possibilty of a duff head unit out of the equation.
Common faults with "twigs" are, in-line connector under the trim undone, (3 cases this year), No earth on antenna, broken inner wire on coax. (two cases) and trim bolted or screwed down through or cutting cable.
A few things to check between head scratching.
Buy an extension cable, say 5 meters, and run it from antenna to radio outside trim/car so if that sorts it out.
Good luck , Peter

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Peter G. Lee

Expertise

Accessory installations including audio, security and lighting, general wiring and fault finding. Nothing specific to US car electrics such as ECUs or engine management systems please i.e. how do I get the radio out of a Saturn, we don't have Saturns in Europe so I wouldn't know.

Experience

11 years as a security and audio installer in the U.K. 9 years own company in South West of U.K. installing for a number of high street retailers incluing Trinity in-car centre, Road User, Halfords and A.1. Past advisor to and chairman of Sold Secure initative gloucestershire police. member PACT (partnership against car theft)U.K. police, Kit car builder VW air coole

Organizations
Member of the institute of diagnostic engineers M.I.Diag.E

Education/Credentials
Certified by Clifford, Cobra (U.K.) Serpi Star-Gamel, Moss, Philips, Tracker (Lowjack), Pioneer blue chip installer, Kenwood installer. City and Guilds, A.R.E

Past/Present clients
Over 2,000 between 1988 and 2000

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