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Author Topic: Which UHF CB antennas?  (Read 1319 times)
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number7
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« on: November 07, 2016, 10:14:44 AM »

standby standby its simplex time       Number 7


Im hoping this one will do the job      Australia Flag

It has the best truck picture on the ad.......

http://www.ebay.com.au/itm/AXIS-CH5T-WHITE-UHF-5DB-FIBREGLASS-CB-ANTENNA-720MM-HEIGHT-FOR-GME-UNIDEN-ORICOM-/291545533994?hash=item43e177ce2a:g:CggAAOSwHMJYHqtA
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« Reply #1 on: November 07, 2016, 11:52:02 AM »

Same brand and DB as the one I have.

Mine's a 6 foot pole mounted (no base coil) one though.

For the price that ebay one should boom with your GME

 Cool Chicken
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Reply #1 on: November 07, 2016, 11:52:02 AM

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number7
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« Reply #2 on: November 07, 2016, 11:55:41 AM »

This is the one I have been using hooked up to my gao

Works pretty good for $6


http://www.ebay.com.au/itm/Magnetic-Vehicle-mounted-Antenna-SMA-F-UHF-VHF-for-Kenwood-BAOFENG-UV5R-HYT-TYT-/171555120784?hash=item27f17b6690:g:lLsAAOSwAL9Ucv2h
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Thunderbird
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« Reply #3 on: November 07, 2016, 12:31:35 PM »

Did yours come with the "magnet sucker" as well?  Number 7  Tears

Check Gumtree, there is one on there right now.

 Grandpa Wood Chopping

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Reply #3 on: November 07, 2016, 12:31:35 PM

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Thunderbird
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« Reply #4 on: November 07, 2016, 12:35:18 PM »

You could always try building a collinear coax antenna, bung it in a length of old conduit seal it with silicone and she's good to go.

Ive built a few, they work well.

http://www.rason.org/Projects/collant/collant.htm

 Grandpa Wood Chopping

Oh and in that article where it goes on about such and such torroids, just rip a couple out of an old switching PSU like an old computer one, they'll work fine.
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"If a clutered desk is a sign of a cluttered mind, of what, then, is an empty desk a sign."  Albert Einstein

Well, I have the cluttered desk, I guess that's a start!
number7
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« Reply #5 on: November 07, 2016, 01:55:32 PM »

yer magnetic base on the little $6 twanga but no base on the new one - I will have to build something to hold it up

My current antenna is ok, my problem is in the coax or connections but I cant work out why - should all be ok

So a pre-made, pre-tuned set up is going to be the easiest way to make sure I have good connections

and with 5m of coax I should be able to get it nice and high (not the   Smoking   kind) and should work ok
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Thunderbird
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« Reply #6 on: November 07, 2016, 02:08:54 PM »

No worries there  Number 7

Get yourself set up and working first, then you can experiment and make stuff later.

 Grandpa Wood Chopping
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"If a clutered desk is a sign of a cluttered mind, of what, then, is an empty desk a sign."  Albert Einstein

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« Reply #7 on: November 08, 2016, 10:57:10 AM »

I just updated the old Moxon page with some close up's of how the coax joins. (aka terminates)

I'm gonna dig out my old Moxon later and add some plastic cutting board strips
and such to harden my wobbly one up.

http://www.goldcoastcb.com/forum/index.php?topic=49.msg3228;topicseen#msg3228

The vertical you're getting Number 7 will still be better as they are 360 degree's (good for simplex)
where as the Moxon's are slightly directional.

 Russell Coight
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number7
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« Reply #8 on: November 21, 2016, 11:42:41 AM »

Here is the base I made out of a bolt and some tape - looks beautiful doesnt it.... Guitar


Seems it does work after all but I want to get it a bit higher when I can be bothered


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« Reply #9 on: November 21, 2016, 01:05:01 PM »

Bloody hell, that home made thing look whacked out.  confused2

eBay is cheaper, but it even Supercheap have the proper thing.

http://www.supercheapauto.com.au/Product/Aepro-UHF-Base-477MHZ-5m-CBBL2/291830
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number7
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« Reply #10 on: November 21, 2016, 02:27:15 PM »

Yer I was going to buy one but wanted more length of coax - thought my bolt and tape base would be the cheapest way

I will probably buy a pre-built base from ebay when I sort out another radio and put that antenna on my vehicle.

I am going to make a mast and put my bolt base up high as I can - I have another antenna to put on it just as a receiver  Smoking
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« Reply #11 on: November 21, 2016, 04:53:06 PM »

I am going to make a mast and put my bolt base up high

From what I can see, the best place for it is the junk box.

It's a water trap - water / moisture fucks things up and makes for inconstancy. (which explains a lot my end)

I'd say the swr is off the scale, as the total length has been increased anywhere from 10mm to 40mm depending
on where you terminated (connected) the coax under all that chewy and sticky tape.

Good RG58-U coax at Jaycar is about $1.50 a meter.

A proper mobile base is $12
https://www.jaycar.com.au/uhf-antenna-base/p/DC3062

I have spare plugs.

Then again for a few dollars more there's a 4db aerial, 5 meters coax, magnetic base and Gayofag connector for $25
https://www.jaycar.com.au/cb-radio-antenna-with-base-and-5m-cable/p/DC1064

Looks like that's a normal base mounted through a metal plate that could be
 removed and mounted in a hole in ya tin roof (best ground plane) or on an L bracket on a pole.

 icon_jokercolor
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number7
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« Reply #12 on: November 23, 2016, 10:29:51 AM »

A water trap?....... Guitar

I had best get some chewy and more tape to protect it Number 7
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