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Mobile Coax


What type of coax for the mobile would the member's recommend that would be shielded and keep out noises such as remote arrows const. road signs ???

Noise in a radio is a common problem due to the band CBs operate in, the lower you go in frequency the more noise you receive. Your problem maybe coming in through the antenna or simply coming in through the receiver frontend. These can be over come by crystal filters but that can get expensive. If the noise is being receive directly by the IF stage in your radio then there isn't a whole lot you can do about it. Just make sure you have good grounds and all connection are tight. You can check on which area of your radio is receive the interferance by disconnecting your antenna and see if the noise goes away.
 
As others have pointed out, it's an antenna issue, not a coax issue.

You can SOMETIMES mitigate the noise pickup on the antenna by using a choke across the coax terminals, BUT a lot of radios already have that put in. EVERY amp or radio I work on, I put a 10 mH choke across the antenna terminals. Helps reduce static pickup, precipitation static, etc....

That being said, you asked about coax. Pick yourself up some Times Microwave LMR series. The LMR-400 is the big stuff, as it's known on the CB band. The 240 is probably as good in the mobile, and it's much thinner, easier to route.

Hope that helps.

--Toll_Free
 

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