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Procomm PAT12 base antenna

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  #1  
Old 12-21-2010, 04:05 AM
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Default Procomm PAT12 base antenna


Hi guys.

I have a Cobra 148F-gtl DX+ that I am going to use as a base. It's in my truck now but I'm going to replace that mobile with a galaxy 979 in the spring, for something a little smaller but more importantly with more features that I want in a mobile.

I live in a ground floor apartment.

The top of the roof gutter is about 8 feet from the ground. I was thinking of getting a PAT12 since it's only 12 feet tall. Antron 99 or whatever they're calling them nowadays and especially the IMAX are way too tall, as this is going to be something I throw up at night, talk on for a while and take it down quick like when I'm done for the night, as I doubt the landloard or Manager would like seeing it up in the air. Only way I could use an Antron is if the base of the antenna and coax was just above the ground but the 5 foot tall fence would most likely hurt the signal.

With the PAT12 I want to make a mast that is about 9 feet long, so I would have about 12" of antenna/mast overlap to bolt the antenna to the mast and still have the base of the antenna clear the gutter height wise.

That would put the tip of the antenna about 6 feet or so above the highest part of the roof.

The idea is to have the antenna attached to the mast so I can take it apart, uncrew the coax in a minute or so and lay the mast and antenna in two seperate pieces in the backyard. The backyard is only 18 feet long, so it needs to come apart. I plan on just leaning the mast against the corner of the gutter as long as it's not windy.

I don't know a lot about base antennas, just mobiles but does the PAT 12 require a ground plane? I'm guessing it's like an Antron and does not need one? Is the only reason for grounding the antenna (not a groundplane but to the actual ground) is in case of lightning only? I won't use it in rain, so don't think I should have to worry about that?

If anybody has any other antenna options I would like to hear them. Just keep in mind I can not go any higher than what I mentioned and really I shouldn't even be going that high (20 feet total).

Read someplace where somebody said using things like a frying pan, cookie sheets etc and running a magmount. I hooked up a walkie talkie to my Wilson mag mount and and a cookie sheet LOL and it actually works, at least recieve was ok. Definatly not something I would want to hook my Cobra up to though, unless the SWR's were fair but I'd rather have something that gets out as well as just recieve.

Thanks...


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Old 12-21-2010, 05:36 PM
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well i never used that antenna. but judging from the mounting height
and lenth of antenna. id say mount a 102 inch whip on roof.
it will probly do about just as good.with antenna mounted low
like that you.ll most likely have alot of tv interference. i know i did
when i tried that with an a99.
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Old 12-22-2010, 02:29 AM
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Another thing I was thinking of would be a Workman B100 (aka Saturn) base antnenna. It's kind of like a large diameter Firestik (about 36" long), that supposidly doesn't require a ground. Was thinking of putting that on about a 12 foot pole but hear they don't work to well.

I will just mess around with stuff I have laying around and just try a few different things and see what happens.

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Old 12-22-2010, 02:51 AM
BOOTY MONSTER
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you could make a dipole using cheap electrical conduit . use a piece of pressure treated lumber or a thick old kitchen cutting board for mounting . start with about 9 foot on each end and tune/cut as needed . stand it up when you wanna talk and lay it down when you're done .

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Old 12-22-2010, 07:46 AM
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Your idea ought to work. It may not be the 'best' way, but it should certainly be possible. You're right about that 'grounding', it's mostly for safety, lightning and so on. Another thought is how close to a window/door can you park your truck? Using your antenna on the truck is a possibility?
- 'Doc

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Old 12-22-2010, 01:34 PM
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Quote:
Originally Posted by W5LZ View Post
Your idea ought to work. It may not be the 'best' way, but it should certainly be possible. You're right about that 'grounding', it's mostly for safety, lightning and so on. Another thought is how close to a window/door can you park your truck? Using your antenna on the truck is a possibility?
- 'Doc
Naw my truck is parked in the garage. I could throw the Wilson mag mount on somebody elses car though.. kidding.

Think this is what I'm going to try as a setup. IMO I think it's a pretty good idea for my situation. At least should work lots better than a dipole or mag mount on a cookie sheet. Believe me if I had the option I would put something up 50 feet.

I need a patio table and a couple chairs for the back yard anyway. I'm going to buy one of those umbrella tables, you know the ones with the hole in the center for a shade umbrella. I'm going to use (guessing) 2-3" outside diameter PVC pipe about 8 feet long as the mast, since it's fairly light and I can throw it around without making a lot of noise. Could use metal pole just the same.

An 8 foot mast would be about perfect height, since the base of the antenna would be at gutter height. But with the table I could move it to the middle of the tiny yard, so not so much signal bounces back, like I was thinking of before.

Thinking of replacing the mast/antenna bracket clamp nuts with wing nuts, so I can take it apart at the mast without fumbling around with wrenches at 2 AM LOL. Since it's not going to be up for more than a few hours a week, it doesn't need to be real sturdy, just needs to stay in place a couple hours here an there.

Now I just need to find out if those PAT 12 antennas suck and if so how bad.

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Old 12-22-2010, 01:58 PM
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when i was initially working on my 5/8 home-brew i dug a hole about 22 inches deep and put a 2 ft piece of 1 3/4 or 2 inch (i forget which) pvc pipe in it and stuck my 10 ft 1 1/2 inch piece in it and used the level to pack the dirt around the 2 ft piece and keep it vertical . concrete and metal conduit would be much more sturdy and durable though , i just needed something temporary .

anyhow , thought id mention it as another option .




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Old 12-22-2010, 07:02 PM
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Quote:
Originally Posted by chad68 View Post
Another thing I was thinking of would be a Workman B100 (aka Saturn) base antnenna. It's kind of like a large diameter Firestik (about 36" long), that supposidly doesn't require a ground. Was thinking of putting that on about a 12 foot pole but hear they don't work to well.

I will just mess around with stuff I have laying around and just try a few different things and see what happens.
i tried that anenna dont waste your money. i tried one i did better with a
wilson 1000 mounted on the roof of house....lol
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