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04-29-2003, 02:34 AM
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Join Date: Apr 2003
Location: Anthem, AZ USA
Posts: 5
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For those who have installed a CB w/ antenna, where did you mount them? I was thinking about going with the all-in-one mic made by Cobra. Nothing showing or taking up room except the cord and mic. For the antenna, I am thinking 4' black fiberglass whip mounted on the right rear bumper. Any suggestions? Thanks.
'03 White Lux H2
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\'03 White Lux H2
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04-30-2003, 11:57 PM
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Join Date: Feb 2003
Location: Northern California, USA
Posts: 159
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For PhilD and those with roof mount antennas... how did you run the wires from the antenna into your truck and get them to the CB unit ??? Did you bring them in through the opening in one of the roof lights, the opening where you can run the wires for the roof lights ?
Michael
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Pewter Hummer H2
Northern California
www.zootsuitstore.com
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Michael
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Pewter Hummer H2
Northern California
www.zootsuitstore.com
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04-29-2003, 07:51 PM
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Join Date: Nov 2002
Location: Northern California
Posts: 403
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Phil & YellowH2:
You both did clean installs. I'll be taking a few notes from your pages and going to work. I'm still shopping for a base unit, but I've used a Cobra in the past with good results.
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04-29-2003, 03:24 AM
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Hummer Veteran
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Join Date: Nov 2002
Location: OCEANSIDE, CALIFORNIA,USA
Posts: 156
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![](http://www.elcova.com/infopop/emoticons/icon_cool.gif) I INSTALLED MY COBRA 75 PER "GLENN" ON POST DATED JANUARY 29,2003. WENT VERY SMOOTH. WILL TRY TO POST PICTURES.[IMG]CB INSTALL[/IMG]
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04-30-2003, 10:33 AM
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![Jason's Avatar](image.php?s=92048fd5f498c24c06d06089cc262e66&u=3773&dateline=1147439002) |
Site Admin
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Join Date: Oct 2002
Location: Deerfield Beach, FL
Posts: 1,011
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Manny's install ...
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www.somo.com - Custom. Accessories. Home of the H2 Source and the H3 Source.
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04-29-2003, 11:45 PM
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Hummer Expert
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Join Date: Nov 2002
Location: Longwood, Florida USA
Posts: 547
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I want to install a dipole for some skip on USB from Germany. Has anone hooked up any shortwave connections.
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05-03-2003, 01:49 AM
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Join Date: Mar 2003
Location: Santa Clarita, CA, U.S.A.
Posts: 3
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Hi guys,
For those of you who are thinking about installing a CB antenna system, there are some considerations which you may want to look into. To begin, a radio station (whether it is mobile or fixed base) is only as good as the antenna system it is connected to and the antenna system is dependent upon the frequency of operation. CB is located in the HF (high frequency) spectrum and has a wavelength of about 11 meters. Most antennas are cut to 1/4 wavelength, which is about 108" for 11 meters. That is the size you want to be at for a effecient antenna system. Now, the physical size of the antenna can be shortened by coiling the wire either in the base or somewhere along the mast. That's how manufacurers make smaller antennas, not necessarily the best for efficiency, but they work. I know, those big long ones look a bit "country" but that's the price we pay. Another issue when installing your antenna system is SWR (signal-to-wavelength ratio). This is very critical in all antenna systems and you must get and keep this ratio at a minimum throughout your installation and operating frequencies (the band or range of frequencies which you will be operating). SWR is affected by the surrounding materials around the antenna and you have to experiment to achieve the best radiated signal. Get or loan a good SWR analyzer for this job. MFJ Enterprises makes a very good unit and it is easy to operate. It's called the MFJ-259B. If you guys would like more info on antennas, drop me a line and I'll be glad to help.
The Rev
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04-30-2003, 02:40 AM
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Hummer Veteran
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Join Date: Nov 2002
Location: OCEANSIDE, CALIFORNIA,USA
Posts: 156
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TRYING TO SHOW WHERE COBRA 75 WAS INSTALLED UNDER DASH.
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04-30-2003, 12:37 AM
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Hummer Veteran
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Join Date: Jan 2003
Location: Toronto, ON CANADA
Posts: 151
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I too have the same install as Phil. It works great even with the antenna folded down. Everybody who sees the Cobra75 mounted like in Phil's pic thinks its OEM.
==================================
'03 Hummer H2 Adv./Lux. Pkgs. Sunset Orange W/Sunroof
Air Spring Susp. Pkg. + 3rd. row seat & DVD System.
CompuStar Auto Security/Remote Starter.
http://www.haugens.com
__________________
==================================
\'03 Hummer H2 Adv./Lux. Pkgs. Sunset Orange W/Sunroof
Air Spring Susp. Pkg. + 3rd. row seat & DVD System.
CompuStar Auto Security/Remote Starter.
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04-29-2003, 11:46 PM
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Hummer Expert
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Join Date: Nov 2002
Location: Longwood, Florida USA
Posts: 547
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What about AMPS???
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05-01-2003, 12:45 AM
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Hummer Veteran
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Join Date: Nov 2002
Location: OCEANSIDE, CALIFORNIA,USA
Posts: 156
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YOU REMOVE THE FRONT LEFT RUNNING LIGHT, IT HAS A RUBBER GASKET THAT YOU CAN RUN YOUR COAX THROUGH. FISH IT THROUGH THE FRONT PILLAR INSIDE AND IT WILL END UP UNDER YOUR DASH. ![](http://www.elcova.com/infopop/emoticons/icon_cool.gif) FOR ENTIRE INSTALL INSTRUCTIONS SEE GLENN'S POST ON JAN 29,2003
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05-04-2003, 06:22 PM
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Join Date: Mar 2003
Location: Santa Clarita, CA, U.S.A.
Posts: 3
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Righton JB,
That's good Johnny. The "standard" or I should say the benckmark for antenna tuning is a SWR below 1.5. Now there was another thing which I failed to mention before and that was the SWR changes along the band of frequencies that you operate on. When you tune your antenna, be sure to tune it for the middle of the band. That way the antenna will work best there and only be about 1.5 at the upeer and lower ends. If you tune it to a minimum SWR at lets say CH1, then tune to CH40, the antenna will be operating with the maximum SWR on CH40 which may be 2.0 or greater. That means a lot of power will be reflected back into the radio and not radiated into the atomshpere. Since CB is regulated to only 4 watts into the antenna system, your low power output will be eaten up by the mismatched antenna. This means you may be damaging the radio and at some point down the road, you may have to replace it. Low SWR makes all the difference in the world and will give a "booming" signal even to a cheap low power radio. Also, remember that HF radio transmission is greatly affected by the ionoshpere which does most of the work for us in long distance communication. Sometimes when conditions are right, a low power mobile raio will be able to communicate with guys half a world away. Now that's cool too!
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04-30-2003, 02:41 AM
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Hummer Veteran
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Join Date: Nov 2002
Location: OCEANSIDE, CALIFORNIA,USA
Posts: 156
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[img]CBINST~2.JPG[/img] HOPE THIS SHOWS WHERE I INSTALLED COBRA 75 UNDERDASH.
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04-30-2003, 07:27 PM
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Join Date: Apr 2003
Location: Anthem, AZ USA
Posts: 5
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Thanks for all of the feedback. I really like the roof rack mount idea. PhilD's and others have very clean installations. I had wanted the bumper mount similar to YellowH2, but, I would not be able to clear the garage. I only have a quarter inch clearance as it is now. I will refer to the past post as guidance.
'03 White Lux H2
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\'03 White Lux H2
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04-29-2003, 03:33 AM
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Hummer Veteran
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Join Date: Nov 2002
Location: OCEANSIDE, CALIFORNIA,USA
Posts: 156
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<LI>[img]CBINST~1.JPG[/img]
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04-29-2003, 04:55 AM
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Hummer Novice
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Join Date: Feb 2003
Posts: 10
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I also have the Cobra. I really like it. I have dual 4ft fiberglass antennas mounted on my rear bumper just like you were asking about. They really flopped around allot so I had to brace them to my tail light guards. (pictures below)
Inside the bumper is a thick metal plate that will need a very big hole drilled through it to run the antenna cable. It is allot of work but I think the outcome is well worth it.
Regards,
Jerry
Yellowh2.com
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05-03-2003, 07:04 PM
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Hummer Veteran
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Join Date: Jan 2003
Location: Toronto, ON CANADA
Posts: 151
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I got an SWR around 1.5. The dealer that sold me the radio and antenna did the match for me at no charge. Apparently an SWR of 1.0 is the best. Mine was originaly 1.7 - 1.8, the dealer tuned my tip and played around abit and got 1.5. Good enough for me and for what I use it for. It took him about 5 minutes.
==================================
'03 Hummer H2 Adv./Lux. Pkgs. Sunset Orange W/Sunroof
Air Spring Susp. Pkg. + 3rd. row seat & DVD System.
CompuStar Auto Security/Remote Starter.
http://www.haugens.com
__________________
==================================
\'03 Hummer H2 Adv./Lux. Pkgs. Sunset Orange W/Sunroof
Air Spring Susp. Pkg. + 3rd. row seat & DVD System.
CompuStar Auto Security/Remote Starter.
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![Old](images/statusicon/post_old.gif)
04-29-2003, 02:34 AM
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Join Date: Apr 2003
Location: Anthem, AZ USA
Posts: 5
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For those who have installed a CB w/ antenna, where did you mount them? I was thinking about going with the all-in-one mic made by Cobra. Nothing showing or taking up room except the cord and mic. For the antenna, I am thinking 4' black fiberglass whip mounted on the right rear bumper. Any suggestions? Thanks.
'03 White Lux H2
__________________
\'03 White Lux H2
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![Old](images/statusicon/post_old.gif)
04-30-2003, 02:43 AM
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Hummer Veteran
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Join Date: Nov 2002
Location: OCEANSIDE, CALIFORNIA,USA
Posts: 156
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CAN'T GET PICTURE TO COME UP!!!!! WILL E-MAIL TO JASON.
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04-29-2003, 03:35 AM
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Hummer Veteran
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Join Date: Nov 2002
Location: OCEANSIDE, CALIFORNIA,USA
Posts: 156
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[img]CBINST~2.JPG[/img]
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