I have a company 2010 volvo with the antenna mount in the mirror. Does that type mount typically have a good ground?
How do I test how good it is?
Thanks,
Mikeeee
Does the Volvo "in the mirror" antenna mount typically have a good ground?
Discussion in 'CB Radio Forum' started by Pmracing, Mar 27, 2013.
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Get an swr meter to check it. Best bet on a volvo is to get what they call a bird perch mount. Take out the top screw on your mirror mount and screw in the bird perch in that hole, then put the antenna mounting bracket on the perch. Thats the best and most inexpensive way to get the best ground on a Volvo. Perch mount costs about 10 bucks in the truckstop. It's a stainless steel rod about 5 or 6 inches long with threads on one end to screw into mirror mount screw hole.
Pmracing Thanks this. -
Mikeeee -
yes swr means standing wave ratio if its over 1.5 -1.8 then its mostly ground problem unless ur 3.5 then mostly its coax you gotta have a good swr and ground will help on that
Pmracing Thanks this. -
Yes the lower the swr's, the better the ground.
Pmracing Thanks this. -
Apparently there was something wrong with the RF gain pot. The shop (I'm guessing here) Oiled it and blew some crud out and it receiving seems much more powerful. But all speech I hear is crackly.
I looked into using a perch mount, but I don't think it is possible with my mirror support configuration. I will take a photo of the mounting issue and post it, after I get back to the truck.
Mikeeee -
Mikeeee -
rf pots do not have nething on them from factory and shouldnt ever have solder joints checkd on it bad recieve is ur antenna .your antenna makes up 90 percent of your system no one said chop it but sometimes you have to clip a 1/4 of it check this out for more info
http://cbradiomagazine.com/April 2007/SWR.htmPmracing Thanks this. -
A resonant 1/4 wave antenna on a perfect ground has an impedance of 37Ω, which is a 1.5:1 SWR. Add a dozen ohms of ground loss, and it'll show a 1:1 SWR, but be less efficient.Pmracing Thanks this. -
you just have to play with ur location and grounding but of all the times ive used radio ive yet to have a groundloss or a swr of 1.1 and have bad recieve i have always tuned mine by grounding and swr of 1.1 and recieve up to 15 miles without skip on a clear night just my opinion a good extrnal meter doesnt lie
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