1 Or 2 Antenna's?

[reddemon71]

I'm going to be using the bird perch on my volvo, Just wondering if it makes a differnce if I run a single or a dual

[wc5b]

There is another thread covering this, but figured I would shoot this at you also. I personally think one antenna is better. (One Good One) But two also looks cool IMOP and does have forward and rear gain over the more Omni-direction of a single. Check this sight out. Its a good quick overview.

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[mwild69]

2 antennas would make it derectional forward and backwards 1 is the best bet its radius on transmit but if your useing factory coax then its set up for 2 so if you onley use one then you have to get your own coax if you want a suggestion if you ant having a shop tune it and your not familar with tunning process then get 18ft of coax and a Frances ant is shoud match in no higher than 1.5

[reddemon71]

I just left the factory one and used that bird perch mount with a 5'5ft francis and ran it on a seperate coax. Seems to work great so far, Just worried that the antenna may hit a few bridge overpasses since it's a tad bit over 14ft

[squirrellsgnwild]

Originally Posted by reddemon71

I just left the factory one and used that bird perch mount with a 5'5ft francis and ran it on a seperate coax. Seems to work great so far, Just worried that the antenna may hit a few bridge overpasses since it's a tad bit over 14ft

Put a spring on the bottom of the antennas.

[danc694u]

Originally Posted by squirrellsgnwild

Put a spring on the bottom of the antennas.

Won't work with a Francis, it will hit the bridge and splinter.

Back to the original poster.

1 or 2 will be fine. I prefer 2 myself. And I prefer they be metal, not fiberglass and coiled wire.

2 has the benefit of no directional dead/weak spots. And reception is much better IMO

[squirrellsgnwild]

Originally Posted by danc694u

Back to the original poster.

1 or 2 will be fine. I prefer 2 myself. And I prefer they be metal, not fiberglass and coiled wire.

2 has the benefit of no directional dead/weak spots. And reception is much better IMO

Two would work great, but they have to be tuned the same

[AB8RU]

I know some of you are interested but there is a history to that Yes it does perform better in a correct settings in actuallity each antenna must be tuned to a SWR of 1:1 at least for optimum performance.

I know some sites offer the sugguestions but I'll save you the search.

1. install antennas if not already installed.
2. have a SWR meter and the jumper the jumper goes to what ( I hope the maker labeled it right ) Transmitter other side to radio antenna jack.
3. other side of meter should be marked Antenna put antenna called a PL 259.
4. remove one antenna.
5. key transmitter around ch 23 is approximate center ( which includes the R/C channels ).
6. tune antenna until a SWR of 1:1 to 1:2 is attained.
7. replace removed antenna.
8. remove tuned antenna example you removed drivers side and tuned passenger side, tuned and replaced drivers side, now remove passenger side and tune drivers side.
9. tune antenna and reinstall removed antenna.
10. if you wish you can remeasure which wil be in the ball park.
11. remove SWR box and jumper reinsert antenna coax back to radio.

I did alot of CB antennas during the 1970's and learned the ones that perform well and then there is some so so antennas that you wonder why they sell em !

the Big Names were Antenna Specialists, Hustler- Newtronics, Hy-Gain, Avanti, Firestick, Francis, Wilson, and I seen some that were in the Craze Days that faded away.

some were merged into bigger companies.

later