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need some CB antenna advice

WB9YBM

Active Member
Joined
May 6, 2019
Messages
859
Location
Niles, IL
One small nit to pick: 108" is actually 1/4 wave on 11m not 102".
Using a 102" whip alone won't work well because it's too short.
If you look at it with an SWR meter. you'll see that--especially with 1/4 wavelength antennas--the antenna has the bandwidth to be acceptable at either length (6" vs. total length is a very small percentage). I've had flat SWR both with and without the spring, no tuning needed on the length of the radiator.
 

slowmover

Member
Premium Subscriber
Joined
Aug 4, 2020
Messages
148
Location
Fort Worth
102 is a mobile antenna that uses the counterpoise of a metal vehicle.

As a base antenna it will need radials to achieve the same effect of “counterpoise”.

There are low cost antennas used successfully for CB base stations (didn’t say “best”) and one way to get a start is in seeing what the following CB shops sell.

Clays
Bobs
Bells

They don’t want headaches or returns.

Step 2 is in researching where & how to mount with what success others have had.

One of the popular recommendations for DIY is an in-attic dipole built using hardware store supply.

“A stealthy homebrew vertical dipole”, at cbradiomagazine.com is an example of this.

An outdoor household antenna requires grounding from lightning.
 

Ravenkeeper

Member
Joined
Sep 26, 2016
Messages
196
Location
Antelope Valley, CA
Spend an evening or two on each of the lower or upper channels, and just listen. Around here, there's use to be activity on 36 & 38, haven't listened in, since my head-on collision 2 1/2 years ago, haven't installed my radio into my new truck, yet. Antenna is up, but no radio, yet.
 

prcguy

Member
Joined
Jun 30, 2006
Messages
10,263
Location
So Cal - Richardson, TX - Tewksbury, MA
Were you and Golddigger in the same accident or what???

Spend an evening or two on each of the lower or upper channels, and just listen. Around here, there's use to be activity on 36 & 38, haven't listened in, since my head-on collision 2 1/2 years ago, haven't installed my radio into my new truck, yet. Antenna is up, but no radio, yet.
 
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