http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=3077597082

This antenna is a mystery. No-one can identify it from the picture. It's
made in Japan and model number is CA-815.

I now have this antenna and can give the dimentions.

|
| A variable appx 17" (43 Cm)
|
| | B 4" (10 Cm)
| |
|
|
| C 59" (150 Cm)
|
|
-------------X--------------
D D 28" (71 Cm)

Tube A is adjustable it's about 17" long when in mid position.

B from the outside looks like a 4" long metal tube. A enters the "tube"
from the top, but is insulated from it. Likewise C enters the "tube" from
below and also insulated from it. I wonder if within B is a coil.

Tube C is 59" long.

Radials D are 28" long, but it looks to me as if they have a loading coil
which is located at the beginning. Coils not equal length for eachground
plane radial.

On the information sheet it shows a picture of a radio set they call "BASE
UNIT" It highlights an antenna select switch and tells you to select
external. So, to me, it looks like this antenna is meant for a receiver.

This antenna is ground plane type, it looks like a ground plane.

Hope it can now be identified. I've no idea what it's for. Is it either an
AM or FM outdoor antennna? Or both?

TIA.

Rich.