Power handling question on 1/2 wave ground plane.

[TalkingTall]

I just picked up a N.O.S. Antenna Specialist Model-81 "Super Magnum" 1/2 wave ground plane.
Anybody know what they are capable of handling power wise?
All the paperwork that came with it didnt mention it either.
This is most likely a temporary set up but I doint want to fry it either...Thanks

 

[Marconi]

I know of a Mighty Magnum III by ASC, but I'm not sure it is the same or not. I never saw one up close, but it looks very similar to the old CLR design with a raised ground plane and some of those used a disk like coil in the base at the feed point to provide the match. It depends of if that is an actual coil in there doing the work or a disk with foil doing the work. A best guess it maybe 500 watts an the thing has a nice wire coil in the base to match it out.

Does the antenna have loaded GP radials on it that are shorter that normal for a GP of those days with 9' radials?

Later edit:
After seeing Cheech's production, thanks Cheech, scratch my 500 watt idea. That antenna was way before maybe even 23 channels and for sure will porbably never hold any watts over the legal CB limit of the times. They even harp on this fact in the literature. If the antenna is in good shape maybe try to sell it on ebay for an old relic or just save it back for the day it might bring a much better price by some collector, but don't put much RF into that one.

 

[Master Chief]

The 1/2 antennas, even back in the day, had real short radials. A 1/2 wave antenna does not require a ground plane like the 1/4 and 5/8 antennas do. I believe the short radials had more to do with feedline isolation than providing a ground plane for the 1/2 wave radiator.

 

[TalkingTall]

ant

The four radials are 4 1/2 feet each and feel like they are solid aluminum instead of hollow tubular.

 

[Thestonerguy]

I just picked up a N.O.S. Antenna Specialist Model-81 "Super Magnum" 1/2 wave ground plane.
Anybody know what they are capable of handling power wise?
All the paperwork that came with it didnt mention it either.
This is most likely a temporary set up but I doint want to fry it either...Thanks

I thought it was around 100 watts but I could be wrong.

 

[bob85]

never seen a supermagnum but i owned the mighty magnum 111, they had 4 solid radials with wire tips abour 4.5 feet and a copper wire transformer at the base inside the red plastic cover, i only ever ran a couple of hundred watts through mine with no problems, i bent my radials down at 45 degrees and locals said it was better but i aint so sure it was, they were prone to getting water inside the cover and upsetting the vswr.

 

[TalkingTall]

ans

Thanks guys...I guess I'll go easy on it. Might be this is the predecessor to the Mighty Magnum III...
Paperwork says 1961

 

[Cheech]

Cant read much of it but its cool!!

 

[TalkingTall]

reply

Thanks Cheech.....

I made a mistake when I posted the question and called it a "Super Magnum"
Mine is not that model, that is a 112 and I have a Model-81 and it is just called a "Magnum 27" and does not have the static ball.

 

[TalkingTall]

radio

I know of a Mighty Magnum III by ASC, but I'm not sure it is the same or not. I never saw one up close, but it looks very similar to the old CLR design with a raised ground plane and some of those used a disk like coil in the base at the feed point to provide the match. It depends of if that is an actual coil in there doing the work or a disk with foil doing the work. A best guess it maybe 500 watts an the thing has a nice wire coil in the base to match it out.

Does the antenna have loaded GP radials on it that are shorter that normal for a GP of those days with 9' radials?

Later edit:
After seeing Cheech's production, thanks Cheech, scratch my 500 watt idea. That antenna was way before maybe even 23 channels and for sure will porbably never hold any watts over the legal CB limit of the times. They even harp on this fact in the literature. If the antenna is in good shape maybe try to sell it on ebay for an old relic or just save it back for the day it might bring a much better price by some collector, but don't put much RF into that one.

Marconi..Sorry. When I posted that question I made a mistake. I have no idea why I called it a "Super Magnum"
The antenna that I have is called a "Magnum 27" and is an M-81.
Antenna is similar but no static ball.
If I can dig out my scanner a copy the paper work and post it.