Antenna Issues

[scottfab]

Originally Posted by Z51JEFF

I just replaced the mast in my 91,the odd thing here is that reception isn't as good as it was with the original antenna mast yet the 2 masts look the same.

How was the replacement mast connected to the coax?
If a socket was used, good.
Then the issue may be impedance mismatch or a tuning issue.
If it's tuning there will be a "tweaking" cap to use that would be
factory set for the antenna they used. It's on the receiver side right
where the coax plugs in.
If it's an impedance mismatch your probably SOL.
The most common one is a 50ohm antenna on a 75ohm system. Car parts houses look at and antenna like a lot of things. It looks like an antenna so it must be one and they're all a like right? Nope.
For more info look at page 2 here:
http://www1.electusdistribution.com....d/impmatch.pdf