Hi Guys,
I'm trying to find out which is the antenna connection for this old Codan 8121 HF radio. I don't have a manual for it and was kind of hoping some one does or has one that is currently operating. There are 2 terminals on the back, one is insulated the other is not.
Thanks LooseChange, I thought the insulated terminal was the antenna too but this radio has had the other terminal labeled as antenna and was wired accordingly. It has an inbuilt antenna tuner and I couldn't seem to get the antenna to tune for transmit but I was able to receive with it to a certain extent.
Seems strange for an early 70's vintage radio to not have an SO-239 socket on the back as a antenna connection. It could be a bit of a dinosaur having only 10 frequencies. Do you know what xtals are in it and do they suit your intended purposes as xtals are now getting to be quite rare to acquire?
The crystals are in place for VMC frequencies where as VMW would be or may be better suited for the west.
It also has 2 voice only 4215 & 6215 distress and the old 2182 international
Plus a commercial fishing frequency and a 8174 bom. Yes a dinosaur but hopefully functional. I'm not sure whether the antenna label is a mistake and the thing was just hooked up incorrectly (antenna-ground mix up ,,,which wouldn't surprise me) . It seems to have played havoc on one of the keel bolts too. I will just swap the antenna and ground and see if it will tune.
Is the ground wire connected to a solid copper or brass finned ground plate under the water line somewhere ?
Select to expand quoteSandS said..
Is the ground wire connected to a solid copper or brass finned ground plate under the water line somewhere ?
Hi SandS,
for a ground plane It has a sheet of copper folded into a strip that runs down the inside of the hull and is fastened to a keel bolt.
Select to expand quoteJolene said..SandS said..
Is the ground wire connected to a solid copper or brass finned ground plate under the water line somewhere ?
Hi SandS,
for a ground plane It has a sheet of copper folded into a strip that runs down the inside of the hull and is fastened to a keel bolt.
Yeah that might do the job , I don't know. I took the plate off the outside of the hull to get a bit better water flow . As I thought I would not need the HF radio ,
It was quite close to the radio , and it had a bolted through hull connection with a heavy copper wire .
