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 Motorcycle Installation

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Secretelephant
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Posts : 8
Times Thanked : 0
Join date : 2020-05-20
QTH or Location : Uk
Equipment Used : Alberict

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PostSubject: Motorcycle Installation   Motorcycle Installation Icon_minitimeWed May 20, 2020 9:11 pm

I am currently trying to instal a CB onto my motorbike.

I have done the easy bit of installing the rig, but I am having problem with the attenna, or getting a decent SWR anyway.

The attenna I have is a PNI S75 Mag mount. Now a mag mount aint much use on a bike, so I have removed the aerial & coax from the magnet & attached to a home made bracket, whic from what I can see is no different to mounting using a gutter or mirror bracket on a car.

However the SWR readings wont come doen an stay in the red. I have checked for coax shorts etc, no probs there.

However if I reassenble the antenna into its orignal magmount & place on a metal table the SWR is fine.

Any ideas where I am going wrong ?
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Alan - Mirror Man
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Alan - Mirror Man

Call Sign : 108CT233
Posts : 101
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Join date : 2019-12-01
QTH or Location : Central Scotland
Equipment Used : CRT SS9900 Beofeng UV5R Yaesu FTDX1200 CRT Micron CRT FP00 Sattelite 2000 antenna G5RV X30 co-linear

Motorcycle Installation Empty
PostSubject: Re: Motorcycle Installation   Motorcycle Installation Icon_minitimeWed May 20, 2020 9:39 pm

You need to get an antenna that doesn't need a ground plane, a quick search on DuckDuckgo will tell you your options and go into more detail about the no ground plane issue.
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