bbolander

I used the Arizona Rocky Road mounts that raise the antennas above the spare tire for CB and Ham for years, worked really well. I use a Diamond NR770HB Ham antenna and it's been great. It's a no-ground antenna. I send and receive to a repeater 30 miles away loud and clear. I have a Yaesu FT-8800R.

Recently I changed to an ARB tire carrier that has a single 3rd brake light post with 2 holes for antennas. I decided since I never need to use CB and Ham at the same time, I put the studs for both on the single post. Again, send and receive to a repeater 30 miles away loud and clear.

I also us a Right Channel Radio JK front fender mount for the Ham. Previously I used a Comet fender mount on the hood in that location. Same thing, send and receive to a repeater 30 miles away loud and clear.

arjeeper

Specific to radiation exposure, as noted by others, at that power level and with typical frequency of transmission, there is no cause for concern.

pitbull62

this is the best rear mounting position I've seen yet. I currently have the teraflex CB mount with antenna there. It has two holes side by side, holes are a couple inches apart. If I could mount my ham antenna next to CB antenna it would be great. I thought that was a no no?

bbolander

It means you can only use either CB or Ham, not both at the same time. You only want to have ONE antenna connected to the mount at a time, not both. The problem with the Teraflex mount and others like it that are lower, behind the spare tire, is that the antenna can have interference from the steel belts in the tire, particularly if the antenna touches the tire. It seems to be working for some there though, just a caution.

pitbull62

So your saying keep one disconnected. Meaning unscrew the pl259 etc from CB antenna while using ham antenna? And vice versa. Sorry man little confused. Thanks bro

bbolander

No, you don't have to disconnect the mounts, just don't put the other antenna on the mount. You still have the CB and Ham cables mounted to their own studs. Just put one antenna on, and not the other.

DJ1

I like that rear setup. If I ever decide to set an antenna up in the back, this is the way I would probably go (above the brake light on a raised extension)....


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pitbull62

Thanks bbolander! I think this is the route I will go with. One more question tho. When I ran my CB cabling it was run down the passenger side. Would it hurt anything if I run the ham cabling down the same side right next to the CB cabling? Anyone?

bbolander

No problem in routing the Ham and CB antenna cables next to each others. Both of mine went through the tailgate rubber grommet and behind the black plastic trim on the tailgate, and then along the passenger side to the radios.

OnBelay

How is your simplex range on the fender mount antenna? We just finished our mobile install and were really unimpressed with our simplex range between home and mobile. Looking for some comparisons.

Here is our base station configuration:

1. Icom ID-51A set to 5 watts (base station)
2. 50' of LMR-400 UltraFlex
3. Diamond X200A mounted in the attic of a one-story house (almost 9' tall, 6/8 dB gain on VHF/UHF). It's an absolute beast; other stations are shocked at our signal with only 5W.



We can hit repeaters 30 miles away, full quieting with this configuration, and can barely read repeaters from 50 miles away (with significant static).

Here is our mobile station configuration:

1. Icom ID-5100a transmitting at 50W
2. 11' of LMR-240 UltraFlex
3. Larsen NMO 2/70BK, mounted on the driver-side fender with an Accessories Unlimited AUJ1 mount.



The test:

My husband drove the Jeep, I stayed at the base station and we did radio checks (VHF simplex) every 30 seconds. We noticed significant drop off at 1 mile, and were barely able to read each other at ~3.5 miles. We've been able to hit repeaters on the mobile ~11 miles away so far (have not tried further yet).

Does this range seem a bit limited to you? Seems we're getting about the same range as a CB. The only issue we can think of is that the bond strap that goes between the engine, firewall, and hood is mostly frayed (we are going to bond the hood at both hinges, soon, and this will be a non-issue).

Thanks!