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Discussion Starter · #1 ·
I am transitioning from a KJ Liberty to a new JL. On the Lib the antenna was mounted on a bracket secured to the inside of the back leg of the roof rack. As the this JL has not roof rack to do the same, I am looking for suggestions and pictures of how you mounted your antenna.

Does the fiberglass roof become a poor ground plane for the antenna? Or does the steel structure of the vehicle still do the job?

Pics, comments, suggestions welcome.

HT
 
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Just did this today. Terraflex tailgate hinge mount. Diamond NR73BNMO antenna only sticks up about 4" above the roof line.

It's a "No Ground Plane" antenna. Acceptable SWR (2/1 or less on my truck) throughout the VHF and UHF bands, including GMRS.
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Discussion Starter · #3 ·
Just did this today. Terraflex tailgate hinge mount. Diamond NR73BNMO antenna only sticks up about 4" above the roof line.
Thanks. That's the kind of idea I am looking for.
 

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I am transitioning from a KJ Liberty to a new JL. On the Lib the antenna was mounted on a bracket secured to the inside of the back leg of the roof rack. As the this JL has not roof rack to do the same, I am looking for suggestions and pictures of how you mounted your antenna.

Does the fiberglass roof become a poor ground plane for the antenna? Or does the steel structure of the vehicle still do the job?

Pics, comments, suggestions welcome.

HT

The fiberglass roof isn't a groundplane, a ground plane needs to be some form of metal, like your hood.

I've currently running 5 antennas on my Jeep, yep I'm a Ham Radio idiot. The one that I like the best is in the URL below, I have 3 on my roof rack, and another screwed into the side of the Jeep, yep I drilled a hole in it, however, it's the one that I have mounted on the hood that seems to be the best so far.
The comet allows you to install it at just about any angle, this you to mount it in a manner prevents interference from the metal in the jeep.




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I have been running this one for a while now. Does a great job with a 2m/70cm Icom 2730a radio. If you put a thin piece of rubber or velcro between the mount and the body it will leave no marks if you ever remove it. It is a NMO mount if that matters to you.

This mounting position definitely does better than mounting behind and against the tailgate for obvious reasons.


And you didn't ask ... but I'm using this mount. Great for the JL and gets the radio out of the way.

 

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I can understand 3 ...... HF, 2m, and 70cm. But educate a newby on why you need 5 .?

I am running a VHF/UHF dual-band single at this time


Great question

1 - APRS 2/440
1 - 2/440 for the Yaesu 857
1 - 20 meters for the Yaesu 857
1 - 40 meters for the Yaesu 857
1 - 2/440 for the ICOM ID-5100 - D-Star; for D-Star I carry a dongle that links to my cell phone, using it's data plan, for when a local D-Sart repeater is not reachable around.

The HF antennas used by 857 are on a coax switch, allowing me to switch the antenna I'm using. I also have a bit of PVC pipe with screw caps that have a bulkhead mounted SO-259 connector on each end on the pipe, allows me to carry other antennas, or store the ones mounted when I'm bashing through low hanging branches; normally carry a 10mtr antenna when traveling with my club for CB - They don't see the value of GMRS, or a Tech License, sort of funny, since most people spend thousands of dollars and hundreads of hours on their Jeeps, yet wont spend $70 to get a GMRS, or a few hours to get their Tech License.

If you have any other questions, feel free to ask, doing Ham Radio in the Jeep is fun, however, the install and power are painful at times.
 

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Just about to take my Technician exam. Fairly simple as I knew most of it anyway from past electronics experience. Already have a GMRS license just for use on trails when required. Looking forward to taking a trip to Moab /Colo Sprs next Spring and thought the GMRS would be good. Have HT for both GMRS and CB, but the CB never gets any usage otherwise.

I wired mine up easily to the aux switch pigtails under the dash. Easy if you only have one radio to deal with, lol.
 

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Just about to take my Technician exam. Fairly simple as I knew most of it anyway from past electronics experience. Already have a GMRS license just for use on trails when required. Looking forward to taking a trip to Moab /Colo Sprs next Spring and thought the GMRS would be good. Have HT for both GMRS and CB, but the CB never gets any usage otherwise.

I wired mine up easily to the aux switch pigtails under the dash. Easy if you only have one radio to deal with, lol.
I've an Extra Class, if I could do it, anyone can, flashcards are you friend. Good luck on your test(s), you can take multiable tests on the same day, so study for your General as well.
Mainly got it so I could do HF, since there's very little VHF/UHF repeater activity here in NM. I just bought my GMRS license, never needed it in the past, however, just about every radio I own has been modded to allow it's usage.
 

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Hah this thread brings back memories from 30+ years ago. I used to have an old Teaberry tube radio with a linier on it. Saved my butt one cold night when stuck.
 

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Discussion Starter · #13 ·
Finished the installation today of my Yaesu FT-7900 dual band mobile ham radio. I ran the power cable by the book (the radio book, not the Jeep manual). Tapped at the battery terminals with fuses on both pos and neg wires right hear the battery.

Taking power directly at the battery helps eliminate issues with the vehicle electronics and provides better grounding.

The wire I used was 12/2 underground rated DC landscape lighting wire. Beefy with very sturdy insulation.

I routed it across the top of the engine bay tucking it between the painted cowl extension the plastic structure right below it.

Passing through the firewall was easy. There is an unused plastic plug on the firewall to the outside of the brake master cyl vacuum booster. I used a long knife to reach in and cut a hole in it and easily fed the wire right through. From there I tucked it behind the "scuffs" at the carpet. It is all concealed until behind the seat belt anchor. From there the wire goes to the radio in the cargo area. (2 Door, back seat removed).

The radio head is mounted on a holder that secures in the cup holder by the hand brake. Clean, convenient, easy installation.

Really happy with the result of the effort.
 
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Finished the installation today of my Yaesu FT-7900 dual band mobile ham radio. I ran the power cable by the book (the radio book, not the Jeep manual). Tapped at the battery terminals with fuses on both pos and neg wires right hear the battery.

Taking power directly at the battery helps eliminate issues with the vehicle electronics and provides better grounding.

The wire I used was 12/2 underground rated DC landscape lighting wire. Beefy with very sturdy insulation.

I routed it across the top of the engine bay tucking it between the painted cowl extension the plastic structure right below it.

Passing through the firewall was easy. There is an unused plastic plug on the firewall to the outside of the brake master cyl vacuum booster. I used a long knife to reach in and cut a hole in it and easily fed the wire right through. From there I tucked it behind the "scuffs" at the carpet. It is all concealed until behind the seat belt anchor. From there the wire goes to the radio in the cargo area. (2 Door, back seat removed).

The radio head is mounted on a holder that secures in the cup holder by the hand brake. Clean, convenient, easy installation.

Really happy with the result of the effort.
There's a nice hole in the firewall if you take off the side passenger dash cover. YouTube should have a video of it
 

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I have many wires going through both sides. - Very convenient.
I have all my extra wires going to the rear of the jeep into a electrical junction box, (6x4x3 I think), then they feed out to things like lights, radios, and what not. EVERYTHING has an Anderson connector on it, I call it my "Fire Hazard". - It's all fused and the relays I need live in it as well.
 

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Discussion Starter · #19 ·
Thanks to RickC137 for the Terraflex hinge mount antenna bracket suggestion. I ordered one up and installed it today. Came out real nice. Great sturdy product. Out of the way. Does the job.

Wheel Tire Automotive parking light Automotive side marker light Land vehicle


Automotive parking light Tire Automotive side marker light Automotive tail & brake light Vehicle


Comet CA 2X4 SR
 

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Taking power directly at the battery helps eliminate issues with the vehicle electronics and provides better grounding.
Yes, that can be an issue at times. Mine is wired to the AUX wiring under the dash and I get zero interference on TX and RX and there are no issues with any of the electronics so far. Lots of folks have used the AUX wiring with no issues.

Of course ...... you did it "by the book" and that's never a bad thing.
 
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