help with mobile cb please

[mackinaw156]

hi i have just installed a cb in landrover with antenna on gutter mount and when i press mic reading is swr maximum , i have also conected wire from antenna to battery neg to ground it ,i this ok
i am very confused what to do next and am thinking of buying swr meter ?

please help lol

[mackinaw156]

1 day later , 8 views and no replies ?
comon guys have a heart lol

[stampman]

sorry been distracted by a small problem swr = maxim do you mean its reading in the RED all the way through

[kester58]

you need to SWR always, get one asap, but that doesn't sound like your problem

the aerial needs to make good contact with a "ground plane", think of it as a metal mirror to reflect the waves up & outwards - aluminium body work doesn't do this

the aerial negative/coax shield needs to be "earthed" to negative, which the neg power lead to the radio should achieve, but another wire to a good earth will help.

make sure your extra neg wire is not touching the aerial or centre wire, but just the outer sheath

[stampman]

no need for wire from base of antenna to neg on battery in fact it complicates it just go basic gutter mount in to roof and then check swr

[kester58]

1 month later and no update........did you sort it Mac?