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JK CB & HAM Radios Bulletin board forum regarding all topics concerning CB and HAM radios, the installation of them in your Jeep JK Wrangler. This would include antenna mounts, wiring, tuning and usage.

Installation of a Midland 75-822 CB

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Old 10-27-2008 | 10:33 PM
  #1  
joe002's Avatar
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From: Phoenix, AZ
Default Installation of a Midland 75-822 CB

Many still exclusively use CBs to communicate on the trails. The CB along with an external antenna (I have a FireStick Firefly installed antenna installed with the CB: https://www.jk-forum.com/forums/jk-cb-ham-radios-128/installation-firestick-firefly-antenna-spare-tire-mount-59752/) permits us to join in on the conversations.

This is what you get. It's a pretty flexible CB. You can use the power from the Jeep, or outside of the Jeep with the small supplied antenna and rechargeable or non-rechargeable batteries:


Plastic furniture leg caps can be placed on the CB ends to keep the dirt out:


The antenna and CB must be tuned using a SWR meter and cable:


With everything connected, set the CB to Channel 1, key the mic, and with the meter set to FWD calibrate the meter:


With the mic still keyed, switch the meter to REF and check the SWR reading:


Repeat this procedure for Channel 40. If the SWR doesn't match, then adjust the antenna until Channel 1 and 40 are the same. Once they are the same check Channel 19 (Channel 19 is the center frequency and should be the "best"). You want your SWR to read 2 or below on all channels. For more detailed information check out the FireStick Library.

Here's the CB "installed":


I got a bracket from Toad to hold the mic:


I’ve used the CB on one run and was told my transmission was clear. I could also receive the transmission from others on the run with no problems.

I recently decided it would be nice to have more volume on the speaker, so I made a cable to plug the output of the CB into my radio. Here are the parts (stereo on one side mono the other - right angle connectors):


Assembled and tied into the radio:


In the Jeep:

Last edited by joe002; 03-26-2011 at 08:57 PM. Reason: Add info speaker cable.
Old 10-27-2008 | 10:48 PM
  #2  
joe002's Avatar
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From: Phoenix, AZ
Default

Originally Posted by SONIC
Nice! i always liked that one.
But I find it better to set your SWR ont he frequency you wil be using the most (i usually use 12-16 the most) so i set mine to 1.000000somethingorother on channel 14.
Thanks, I really like the portability and packaging of the CB.

When you "center" the SWR using Channels 1 and 40 you get a curve like a smile (the highest SWR is on channels 1 and 40), and you know that all channels will be below your reading on Channel 1 and 40. With this set-up I'm not really tuning it for a particular Channel - especially since different groups around here used different channels.

For this setup I'm using the CB in my Jeep exclusively for talking to others on the same run that I am on - not for random people that be many miles away. I decided to not get the top-of-the-line CB, antenna, etc. I just wanted a good solid setup that would work easily for all channels, would permit me to completely remove the CB when I wasn't on a group run, and permitted me to use the power adapter.

Many years ago (you can probably tell from by SWR meter), I exclusively used Channel 2. You can bet I had my CB and antenna "tuned" to Channel 2!




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