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Old 09-11-2013, 08:48 AM   #1
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FireStik II Antenna Build - Seeking Feedback

Looking to install a Firestik II utilizing *No ground plane* on my 2014 JKUR with the following breakdown:

Firestik II 3' (FS3-B)
Firestik Quick Disconnect (K-1A)
Firestik Spring (SS-3H)
Cooltech, LLC Gatemount (JK09CTGBKT) Firestik NGP Coax (K-8NGP)

Any advice? It may just be cheaper to order FG3-648-B and toss the mount... Will be used with Midland 75-822. Was suggested to take the NGP route by my resident HAM expert.

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Old 09-11-2013, 09:39 AM   #2
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I'm not an antenna expert, but I think you're going to hear that NGP is NOT the way to go. There is enough surface on a Jeep for a ground plane. I think that most Firesticks on Jeeps are ground plane antennas. I have a 2' Firestick GP on mine.

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Old 09-11-2013, 03:38 PM   #3
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I'm not an antenna expert, but I think you're going to hear that NGP is NOT the way to go. There is enough surface on a Jeep for a ground plane. I think that most Firesticks on Jeeps are ground plane antennas. I have a 2' Firestick GP on mine.
Good info! Let me state that I have NO CLUE what I am doing. Too lazy to read all the technical docs. What is the full model number of the antenna you use? I thought the antenna had to be mounted in the center of the roof for "counter poise" ????
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Old 09-11-2013, 04:38 PM   #4
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Originally Posted by mikebot View Post
Good info! Let me state that I have NO CLUE what I am doing. Too lazy to read all the technical docs. What is the full model number of the antenna you use? I thought the antenna had to be mounted in the center of the roof for "counter poise" ????
I'm using THIS FIRESTICK II on a TERAFLEX mount on a TJ. I decided to go with the 2' antenna since I keep the TJ in the garage and didn't want it hitting the door.

Take a look at these threads:

Help with antenna
Antenna height
Any knowledgeable hams?

I think that the short answer re counter poise and Jeeps is that it may not be perfect, but it's good enough.
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Old 09-12-2013, 12:40 AM   #5
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X2 on the NGP style of antenna NOT being the right kind of antenna for a Jeep, NGP antennas are poor performers at best and were designed for use on all fiberglass installations like boats that don't have a ground plane for an antenna to take advantage of. The Jeep has a superb ground plane so use a traditional antenna like a Firestick FS-2, FS-3, or FS-4 and the correct mount so the Jeep's natural ground plane (its massive steel frame & steel body) can be taken advantage of.
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Old 09-12-2013, 02:37 PM   #6
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Copy that--abandon NGP idea. Here's my new build list. I am worried about the coax being 18'. Install will be on my 2014 JK Unlimited Rubicon. Antenna location will be on the tire carrier. Is 18' long enough with the routing?

Top to bottom:
  • FireStik II 3' Antenna (FS3-?)
  • FireStik Heavy Duty Spring (SS-3H)
  • FireStik Internal Locking Quick Disconnect (K-1A)
  • FireStik Antenna Stud Mount (K-4R)
  • FireStik 2-Piece, "EZ-Install" Coaxial Cable Assembly, 18' (MU-8R18)
  • CoolTech, LLC - Stainless Steel GateMount (JK09CTGBKT)

Total build is around $120. The only thing I am on the fence about is which coax to get.

THANK YOU ALL FOR SO MUCH HELP!!!
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Old 09-12-2013, 03:58 PM   #7
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There is no magic in the 18 foot length. You may need longer.

Take a piece of twine and route it as if it is the coax to determine the length you need.
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Old 09-16-2013, 07:33 PM   #8
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Has anyone installed in a JK Unlimited? What were your mounting locations for the CB and antenna and how much coax did you need?
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Old 09-17-2013, 12:48 AM   #9
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Quote:
Originally Posted by mikebot View Post
... and how much coax did you need?
Read the post immediately above yours where you asked that.
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Old 10-02-2013, 11:00 PM   #10
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Copy that--abandon NGP idea. Here's my new build list. I am worried about the coax being 18'. Install will be on my 2014 JK Unlimited Rubicon. Antenna location will be on the tire carrier. Is 18' long enough with the routing? Top to bottom:[*]FireStik II 3' Antenna (FS3-?)[*]FireStik Heavy Duty Spring (SS-3H)[*]FireStik Internal Locking Quick Disconnect (K-1A)[*]FireStik Antenna Stud Mount (K-4R)[*]FireStik 2-Piece, "EZ-Install" Coaxial Cable Assembly, 18' (MU-8R18)[*]CoolTech, LLC - Stainless Steel GateMount (JK09CTGBKT) Total build is around $120. The only thing I am on the fence about is which coax to get. THANK YOU ALL FOR SO MUCH HELP!!!
Went with this setup but got the 4' Firestik II. Screwed the tip down all of the way and got an SWR reading of 1.0 on channel 1, 1.5 on channel 40, and about 1.2 on channel 19. Awesome! Also grounded the mount to the tailgate hinge, although the multimeter continuity was showing that the tailgate shared a common ground with the tub already....just in case! Attachment 399601


Attachment 399609



Attachment 399617
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Old 10-07-2013, 06:09 PM   #11
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I went with the same set up. I started with a 3 footer and no matter what I did, I couldn't get a usable SWR reading. I ended up with a 4 footer minus the spring.
Now it works great!

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