They do make a right angle adaptor for installations where you have
no room behind the radio,

Ken (KP)



Ken Ward wrote:
Well, I figured it out this evening. The antenna cable, right where it
goes into the BNC connector that then attaches to the tray, is
intermittent. If the cable is bent at a right angle to attach to the
tray, it becomes 'open'. If the cable is lying flat on the floor
attached to the tray, it's good.

How do you remove the BNC connector, strip and prepare the coaxial
cable, then put a new BNC connector back on? Is this a mechanical
connection or does it require soldering/crimping?

As an aside, since the problem is that the cable is being bent 90
degrees to attach to the tray, can I replace the 'straight' BNC
connector with a 90 degree connector, and eliminate this issue in the
future?

Ken

PS: I'm a ham, and I've used an SWR meter on my glider antenna also. I
guess the cable was in it's 'good' position when I did that test, as the
results were acceptable.


In article ,
"Mark Lenox" wrote:

Even better, try an antenna analyzer like an MFJ-269. It can measure the
impedence of the antenna system, including the coaxial lead from the radio.
If there is a problem with the lead, it can determine the distance to fault.
It can also measure the loss in a given piece of coax.

If you're anywhere near Knoxville, TN (Chilhowee Gliderport), I have one and
would be happy to hook it up and check it out for you. Otherwise, most
avionics shops have this kind of gear.


Mark


"Heinz Gehlhaar" wrote in message
...
Ken,
I would carefully trace the "goodness" of the antenna lead from the tray
to
the ship. A short or on open would get your symptoms.
I think a simple Ohm-meter would work. With the radio-to-tray connection
disconnected, you should see almost an open-ckt (meg-ohms) from the ship's
antenna to cable shield/ground. And you should see a closed circuit from
the
antenna to the coax center-conductor.
Good luck.

Heinz