3" ground plain kit for mobile antennas

[TowerRigger]

Do these little 6 dollar units actually work. Correct me if I'm wrong but these are supposed to bring the curve of the signal closer to the earth. There in widening it? Flatter?

[Red Ranger]

Key part of that phrase is supposed to work. They are not worth wasting your money on.

[TowerRigger]

All I needed to know. Thanks
I guess if it were so great the manufacturers would include it on the product to begin with.

[bookie]

some do include them. i bought to 20m antenna's years ago made by some ham in japan and both had them. the swr jumped .1 with out them. i run them on my wilson silver load. not much difference though. just wish they were about 12 inches or longer o see a real notice.

nate

[rev ike]

never owned one didn't think it was worth foolin with

[cajun406]

I run ground plane kits on my pickup and my big truck, so I can say from experience. I like them.

[Thisdude08]

I have tried in in my truck & can't say as I notice any difference
with it on or off.

[THUMPER]

work good for tracking your dogs while hunting

[TowerRigger]

"works good for tracking your dogs while hunting"
Huh?

[djrebel236]

from my experience, they are good for recieve(RX) no diffrence on transmit(TX) or i should say it wont get ya out any better but it may help in your recieve...Dj

[rev ike]

they look kinda cool

[Spitfire 441]

In a word(or two). SNAKE OIL! In order for a ground plane to work it needs to be at least 1/4 wave length long @ the frequency of operation.
468 divide by frequency in Mhz equals half wavelength. Divide that by 2 for 1/4 wave.
therefore a quarter wave for 27 Mhz is a little over8 1/2 ft.
So what is 6" gonna do??????

[Spitfire 441]

I forgot to add, that if its on your vehicle, the vehicle body IS the ground plane. All ( most I should say) Mobile antennas for CB are based on a quarter wave antenna. You need a half wave of antenna for it to work.(the minimum electrical size for an antenna). The body of the vehicle being the other half.

[jessejamesdallas]

If you have allot of cat's or squirrels hanging around your yard...I suggest buying about a dozen of these things! They make great throwing star's! And after a while, you'll be able to pick-off a squirrel @ 50' running across the yard!

As for as CB use go's.....Snake-Oil is right!

[chrisbama351]

It is called a ground plane but isn't on the ground side. That isn't the side of the antenna I want grounded. as for a counterpoise Like was said the length is wrong. There are ones with about 12" radials but is still too short and on the wrong side of the system.
ala"Bama" 351 Colorado