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Old 06-16-2013, 05:41 AM   #91
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Congratulations Zed!

I'm not a ham but I use a company VHF radio in the 153 MHz range which I believe is called the 2 meter band. The antenna we use is too short to mount from the tire rack unless you put an extension to get it up over the top. I don't think it would be too difficult to do though with a piece of aluminium stock. The antenna you posted is only 37" and would be about a foot shorter than your firestik. I'm sure one of the more experienced ham's will have a better suggestion for you than I do but I thought I'd just throw that out there.

This is off topic but did you take a class or just study by yourself for the exam? I'd like to get my license and have recently been looking into it. Thanks.

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Old 06-16-2013, 06:47 AM   #92
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Thanks Landman! Good point about the antenna.

Didn't take a class. Just bought this book from amazon: http://www.amazon.com/gp/aw/d/087259...sr=8-1&pi=SL75

Then... And this was a HUGE help, went to eham.net and kept taking the practice exams over and over. They give you the correct answers at the end. On the left side of the site click "new to ham radio" then scroll down a little and click take practice test and select technician.

There are a set number of questions they can ask you. They pull 35 from that set of questions for every test.

I studied for a little under two weeks. ;-)

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Old 06-16-2013, 07:37 AM   #93
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Zed, I bought that book the other day but haven't even look at it yet. I will now though. I was just curious if there was a better option before I started. Thanks for your help.
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Old 06-16-2013, 05:50 PM   #94
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Congratulations on passing your Technician test.
Nothing wrong with putting another antenna in the same general area. Everything is a compromise in radio. You'll be blasting a lot of your signal in to the back of your Jeep. Ideally the antenna should be on highest location on your vehicle (roof). And in off-roading we know that's not very practical.
I have my 2m stick mounted on a hood lip mount. And the CB mounted on a license plate bracket.
KG6JRO

[QUOTE="Zed;3864144"]So i just passed my tech exam today! This is a great thread but I still need some advice. I'm running a 4 foot firestik for my CB off a rugged ridge spare tire mount. I was thinking of putting my ham antenna on the same mount attached to the hole on the opposite side of where I have my first antenna. Is this too close? It would allow me to route both coax wires and ground straps through the same entry points so would be convenient.
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Old 06-20-2013, 10:09 PM   #95
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I ALWAYS connect direcly to the battery. Always. Also, fuse both the POS and NEG wires AT the battery. You should use 10G wire whenever possible for 10' or longer runs. You can probably get away with 12G, but use 10G if you have it. You end up loosing too much power in 12G and smaller dia wires. Your rig wants 13.8 VDC for optimum output and operation. Although it will operate down to 11.8 VDC (13.8 V +/- 15%), you won't have MAX power out and you'll be stressing the rest of the components.

By going directly to the battery, you don't have to worry about finding a usable power tap, won't have to mess with the JK's BUS system, and, the battery acts as a sort of filter, keeping a lot of alternator/generator whine and other extraneous noises off of your signal.

Good info.

I'm wondering though, if you connect directly to the battery, should you forget to turn your radio off, dont you run the risk of a dead battery in the morning?

Is it possible to run it through an add-a-circuit fuse, and a switched source at the fuse panel?
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Old 06-20-2013, 10:12 PM   #96
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Zed, I bought that book the other day but haven't even look at it yet. I will now though. I was just curious if there was a better option before I started. Thanks for your help.
Check with a few of our local radio clubs. Some of them may offer a "Ham Cram" class. Its an 8 hour day of intense 'cramming' with the exam at 4pm.

I had studied since November, but the woman sitting next to me had never seen the manual, or taken a practice test, and she passed the exam after only 8 hours of study.

Of course its best to study and LEARN the material you'll be using, but the Ham Crams are designed to at least get you in the door and on the air so you can learn as you go.
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Old 06-21-2013, 01:59 AM   #97
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Good info.

I'm wondering though, if you connect directly to the battery, should you forget to turn your radio off, dont you run the risk of a dead battery in the morning?

Is it possible to run it through an add-a-circuit fuse, and a switched source at the fuse panel?
You could add a low voltage disconnect to prevent accidental discharge. PowerWerx has a unit at $89. See it here: http://www.powerwerx.com/fuses-circu...nnect-lvd.html
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Old 06-21-2013, 10:25 PM   #98
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I was actually thinking of wiring mine like I did my off road lights. Straight to the battery with a rocker switch on my APod in the cabin. That way I can leave the radio on under the seat, just cover the face plate when I get out (I work in the city and the druggies will smash and grab anything shiny) and just flip power on and off from the rocker.
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Old 06-21-2013, 11:37 PM   #99
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I was actually thinking of wiring mine like I did my off road lights. Straight to the battery with a rocker switch on my APod in the cabin. That way I can leave the radio on under the seat, just cover the face plate when I get out (I work in the city and the druggies will smash and grab anything shiny) and just flip power on and off from the rocker.
Ooohhhhh... That sounds nice.

What's an APod?
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Old 06-22-2013, 06:17 AM   #100
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Thanks for the info on the ham test. Out of curiousity, I took a few of the practice tests online. In my line of work I've been around commercial radios some and know a little bit about radios (probably just enough to be dangerous!) but I actually passed a couple of the exams without studying yet. So I think I'm just going to read the book and then study the question pool.

One thing you might want to keep in mind when you wire your radio directly to the battery is that you want to make sure the radio is off when you start your vehicle. I had an installation tech at a local commercial radio company tell me that the power surge when you start the vehicle is bad for the radio. I don't know if that is true but it certainly makes sense. My commercial radio is wired directly to the battery but is located where I can see the face so I know whether it is off or on. I also have Anderson Power Poles on it so I can easily remove it. However, I usually just throw a towel over it when I get out of the vehicle to prevent it from being so visible to thieves.

Anderson Power Poles are great. I like to use them on all my vehicles and radios along with an NMO antenna mount. If I want to I can easily switch out my commercial radio for a CB. Here is a link to the Power Poles and a link to a good NMO CB antenna. The antenna is a Tram 1140 and can probably be found cheaper somewhere but I just posted that auction link so you can see a picture of it.

Anderson Power Poles, Connectors & Housings - Powerpoles for Sale | Powerwerx

Tram 1140 NMO Mount CB Antenna 26 8 31 MHz High Proformance 1 4 Wave Loaded | eBay
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Old 06-22-2013, 05:10 PM   #101
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Good info.

I'm wondering though, if you connect directly to the battery, should you forget to turn your radio off, dont you run the risk of a dead battery in the morning?

Is it possible to run it through an add-a-circuit fuse, and a switched source at the fuse panel?
Many newer radios have a setting where you can set the radio to turn off automatically after a certain length of time. That way if you forget to turn it off it will do it for you. My Yaesu is set for 30 minutes. It beeps for a few seconds to warn you it's about to "Auto Off" then you can press any button to reset the timer.
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Old 06-22-2013, 08:26 PM   #102
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Ooohhhhh... That sounds nice.

What's an APod?
Right here:
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Old 06-22-2013, 10:21 PM   #103
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Oooohhhhh nice! Might have to think about one of those.
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Old 06-22-2013, 10:26 PM   #104
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I'm sure it's already been asked but do any of yall have a link for the practice exams?
Hopefully I'll be taking the test soon
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Old 06-22-2013, 10:58 PM   #105
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Old 06-23-2013, 11:46 AM   #106
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I used eham.net A LOT studying for mine. Go to the right column and click on "new to ham radio" then on the next page scroll down a bit and select practice test. Then select Technician. Good luck!
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Old 06-23-2013, 10:34 PM   #107
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I'm sure it's already been asked but do any of yall have a link for the practice exams?
Hopefully I'll be taking the test soon

This is what I used: AA9PW FCC Exam Practice » Amateur Radio Exam Practice



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Old 06-27-2013, 06:19 PM   #108
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Thanks. The antenna mount is a Diamond K400SNMO and the antenna is a Larson NMO-2/70B. I have been very pleased with the results.

I'm buying a used K400S for $50.

Are the differences in the S and SNMO just the connectors?
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Old 09-29-2013, 10:09 PM   #109
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Hi!

Just got my first Jeep Wrangler. 2013 Freedom Edition. Love it!

Great thread too, thank you to everyone that has contributed.

My issue and question is, I was hoping to place 2 NMO mount antennas, 1 on each of the Tail Lights. Problem is, I see no one is making anything like the TeraFlex solution for the JK models.

I have the stock cages around my real tail lights, from the Jeep factory.

Has anyone here run across individuals or a company making/fabricating these from scratch and selling them to the willing? Anyone have experience or luck with the TeraFlex 1912001 & 1912002 being modified to fit, if possible?

I'm not keen on the hood or cowl mount and keying up 50 watts of RF on VHF or UHF into me or my passenger. The spare tire mount isn't a great location for an NMO antenna. The Cooltech Ultramount license plate solution, for that price and I am not even sure if it is modifiable for NMO (I researched, but didn't stumble on it), is an option but one of the last ones.

Thanks!

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Old 09-30-2013, 09:09 AM   #110
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Old 10-03-2013, 01:49 PM   #111
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Hi!

Has anyone here run across individuals or a company making/fabricating these from scratch and selling them to the willing? Anyone have experience or luck with the TeraFlex 1912001 & 1912002 being modified to fit, if possible?
Wow, 4 days have passed and no replies. I guess chances are slim for a solution to the rear taillight mounting on the JK model Wrangler, that earlier Wranglers enjoyed using the TeraFlex brackets.

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Old 04-21-2014, 05:21 PM   #112
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Bump... I'm looking into the same thing.

Thanks,
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Old 04-22-2014, 11:26 AM   #113
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KC3AUV,

No one makes that type of mount for the JK.

There is another solution on Ebay which uses the 3rd brake light. Good if you are using an NMO type base mount and antenna is shorter not hitting branches. It isn't a solution for me, so I am still working on other solutions. PM me if you want the link for this item.

For now, I settled on a Comet RS-720 NMO adjustable lip mount. I mounted it on the left side of the back door as high as possible, scraping the paint off the surface where the 4 hex screws make contact to the metal. The ground doesn't need bonding and the SWR is almost flat using a Larsen 2/70 NMO. A great antenna as it is collinear on 440 and acts as a 1/2 wave on 2 meters if there is no or a weak is ground present. Using 5/8 or 6/8 or strange other wave gain type of antennas will prove to be tricky or just not work at all.

73

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Old 04-22-2014, 08:10 PM   #114
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KC3AUV, No one makes that type of mount for the JK. There is another solution on Ebay which uses the 3rd brake light. Good if you are using an NMO type base mount and antenna is shorter not hitting branches. It isn't a solution for me, so I am still working on other solutions. PM me if you want the link for this item. For now, I settled on a Comet RS-720 NMO adjustable lip mount. I mounted it on the left side of the back door as high as possible, scraping the paint off the surface where the 4 hex screws make contact to the metal. The ground doesn't need bonding and the SWR is almost flat using a Larsen 2/70 NMO. A great antenna as it is collinear on 440 and acts as a 1/2 wave on 2 meters if there is no or a weak is ground present. Using 5/8 or 6/8 or strange other wave gain type of antennas will prove to be tricky or just not work at all. 73 N9SSU
Interesting. Do you have any pics of how you're mounted? Can you still use the door?
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Old 06-18-2014, 05:56 PM   #115
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Has anyone tried a glass mount antenna such as the multiband Larsen KG2/70CXPL ??
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Old 06-19-2014, 03:24 AM   #116
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Has anyone tried a glass mount antenna such as the multiband Larsen KG2/70CXPL ??
73
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Terrible receive and usually high SWR due to no ground plane at all.

Read up a few posts of mine using a Larsen NMO mount and a trunk lip on the back gate.

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Old 06-20-2014, 12:55 PM   #117
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Howdy,

Can you post a photo of your setup? Really interested!


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KC3AUV,

No one makes that type of mount for the JK.

There is another solution on Ebay which uses the 3rd brake light. Good if you are using an NMO type base mount and antenna is shorter not hitting branches. It isn't a solution for me, so I am still working on other solutions. PM me if you want the link for this item.

For now, I settled on a Comet RS-720 NMO adjustable lip mount. I mounted it on the left side of the back door as high as possible, scraping the paint off the surface where the 4 hex screws make contact to the metal. The ground doesn't need bonding and the SWR is almost flat using a Larsen 2/70 NMO. A great antenna as it is collinear on 440 and acts as a 1/2 wave on 2 meters if there is no or a weak is ground present. Using 5/8 or 6/8 or strange other wave gain type of antennas will prove to be tricky or just not work at all.

73

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Old 07-13-2014, 08:15 PM   #118
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I went with the Diamond K400S and a Jetstream dual band 40". Took it to Dallas last weekend and hit a repeater 59 miles away using a 5w Baofeng HT. Just hooked up an FT2800M today.




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Old 08-10-2014, 01:23 PM   #119
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I took a little different approach with my ham rig.

I mounted a Comet SBB2 dual band antenna on the INSIDE of our 2012 Wrangler Sport where it can not be seen nor knocked off by tree limbs. It is mounted using the right rear allen attach bolt for the hard top. I made a small mild steel flat "tab" for the mounting surface which is held in place by the hard top bolt. It extends inboard about 2 inches and the antenna is mounted to it. Ground is good (I scratched the paint off the under side of the tub rail) and swr/power output is very good (1.1-1). The radio signal does not see the fiberglass hard top so it thinks it is out in the open with the exception of the right rear roll bar down tube. Put a small piece of foam on the tip of the antenna to buffer it from the inside of the top on rough roads.

I use this set up with a Yaesu VX 8GR handheld at around 4 watts and it works very well. Yesterday I was talking through a repeater at 35 miles with a reported 90% full quieting.

Hope this helps,

Cheers,

db

ps. Spent many years in SAT--pretty place--just a little hot and humid for us in the summer.
Thanks a lot for the idea, got a SBB2 too and attached it with a mild steel bracked home made style too.

Reception/transmission is good, nobody can see it from the outside and/or break it, and it's protected from the elements (salt in winter here in Canada).

Thanks!
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Old 11-09-2014, 12:19 AM   #120
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I went with the Diamond K400S and a Jetstream dual band 40". Took it to Dallas last weekend and hit a repeater 59 miles away using a 5w Baofeng HT. Just hooked up an FT2800M today.




Thanks for this post! I just ordered my brake light antenna mount and was trying to choose an antenna, glad I found this thread! I'm going to order that antenna and use my Baofeng UV5RE for now until I can buy a new more permanent vehicle mounted radio.

-KG7IFL

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