CB radio mount - where?

treestump · Apr 20, 2009

jai_landrover said:
CB performance what matters is the ground plane. The ground plane is the flat, metal surface needed to reflect your antenna's signal out. Essentially, the antenna transmits the signal downward, it strikes the ground plane, and is reflected out. The bigger your ground plane is, the better. Consequentially, the best place for your antenna is the center of the roof of your vehicle, IF it is metal and there is no sun roof. Some newer vehicles have fiberglass bodies that will not reflect the signal as metal would. The front or back fenders will give you good results as well. You must remember, though, that the signal will be weaker in the direction with no ground plane. For instance, if you mount your antenna on the front drivers side fender, you will have a weaker signal to the front-left of the vehicle.

Extract from google.

Mine is in the centre of my roof have recieved from over 20 miles

Thats why you should mount your aeriel on the landy roof. But nobody does do they? well ClassicKev has with great results. Mine is mounted on my front bumper but it is most certainly directional but will have a decent ground plane soon. I bet yours is too Boydy and many others but somtimes practicality comes before performance. I think if you add another seperate ground plane I was told that you can get some serious range but its been so long since I studied Radio. Jai

Mine is in the centre of my roof have recieved from over 20 miles

boydy1989 · Apr 20, 2009

mine is on the flat back bit, but high up on it. Have got about 15 miles with spot on quality, never had occasion to try further yet.

That said though, i need a new aerial.

What do you recommend? I had a Dial-a-match before, and thought it was pretty good, how do they compare to the springer ones, etc?

Depending on the advice given, ill go for another dial-a-match, but if someone rekons something else is much better ill get one of them.

I agree btw, ally does oxidise, but if you use a toothed washer etc to mount it, it shouldn't oxidise under it too much. I mean, i pull 70 watts through an ally body panel, where the lights screw on!

jai_landrover · Apr 20, 2009

Boydy you havent got an earth for your spots? Really I even wired an earth for my interior lamp well its a stop off point that continues to the where the rear worklamps will be located. I added a seperate earth from the chassis cos I made the wiring beefy enough wiring to take 480 Watts or 40 amps cos I can't stand re wiring for the sake of newer higher wattage bulbs. I think there is more wire money in my mota in wiring than its value. Jai

boydy1989 · Apr 20, 2009

each spot is earthed directly to the chassis, through a loop connector hooked over its mounting bolt. The battery to chassis connection is kept clean and is heavier than standard i think anyway. The bodyshell mounts provide a huge current carrying capacity, as there are so many of them. I do agree though, that for audio things extra clean earths mke it so much better, same for CB - my CB radio has its own earth to reduce induced interference from other things.

treestump · Apr 20, 2009

boydy1989 said:
mine is on the flat back bit, but high up on it. Have got about 15 miles with spot on quality, never had occasion to try further yet.

That said though, i need a new aerial.

What do you recommend? I had a Dial-a-match before, and thought it was pretty good, how do they compare to the springer ones, etc?

Depending on the advice given, ill go for another dial-a-match, but if someone rekons something else is much better ill get one of them.

I agree btw, ally does oxidise, but if you use a toothed washer etc to mount it, it shouldn't oxidise under it too much. I mean, i pull 70 watts through an ally body panel, where the lights screw on!

Me and my mates use springers usually spot on for swr straight from packet. Tough as old boots never had one broken offroading and at £6 a pop not bad value

boydy1989 · Apr 20, 2009

what length, you usin, and what kinda range they give you?

treestump · Apr 20, 2009

boydy1989 said:
what length, you usin, and what kinda range they give you?

Five foot. Realistically no false claims, 1 -2 miles in deep Cornish valleys. Up to 5 miles around dartmoor and 10 - 15 from hills.

CB radio mount - where?

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