Quad band ham antenna help.

Check out the Diamond Antenna website. I think they have what you want.

check out cr-8900a.

 

The Diamond/Comet/Maldol multi band antennas don't hold up well on a tractor trailer. I used to run one of the Comet multi-bands that you could put a few HF elements on, and have run diamond/comet 2m/44o antennas for over 20 years on trucks.
They just don't hold up well to occasional whacks from tree limbs. If you mount one, make sure you put it out of the tree limb danger zone, and check the set screws on the antenna sections often. It's no fun looking up and seeng half of your antenna gone, and they're not cheap.
Most of the mounts they sell for them whether PO or NMO, don't work well or hold up well on a truck. The radio store salesman will try to sell you one of the diamond/comet mounts that work ok on cars, usually with the expensive, lossy coax package.
(174?) I gave up on those. I usually make my own, buy a suitable cb mirror mount bracket that will work on your truck, throw away the 3/8x24 crap mountng thing, and drill out that hole and insert a decent quality UHF 'Bulkhead' adapter, with a few added lock nuts. YOu can now thread a PO/UHF mount diamond/comet/maldol antenna onto the mount, and use decent quality coax with a standard PL259.

 

I have a question. Why a quad band? It's a FM radio. You won't find much on 10 & 6 meter FM. Also to get on 10 meter FM you will need a General class license. Because 10 meter FM is above 29.500. And Technicians can only talk on 28.300-28.500Mhz which is USB. I feel Quad bands are a waste of money. A Dual band may be better.

 

I agree with Big_m, if you only have a technician license get a good duel band (2 meter / 70cm) as there is very limited FM traffic on 6 meters and you cannot use 10 meters FM at all.

Even if you have your General or Extra I would not get a quad band as both 6 and 10 meters have very little FM traffic, I would get an all band all mode radio (IC7000, IC-7100, FT-897D, FT-857D) so you could get on HF as well as VHF/UHF and use SSB on 6 and 10 meters as well.

 

I have a KW T-600 and have a Larsen NMO2/70C mounted in the factory right hand mirror position using a thick NMO mount and doing a little work on the bracket hole with a reamer. I doubt a stud mount or homemade adapter (to avoid hacking on the mirror bracket) would be all that much more to rig up. It's taken some pretty solid tree branch strikes and has held up well. The mirror itself tends to protect the mast. Think about it - most branches will get smacked out of the way by the mirror before really hitting the antenna mast on the bracket. The few that are over the mirror will be high enough on the mast for it to spring back. About the only drawback is it's center loaded thus a little top heavy, so leans way back in the wind with any substantial ice buildup. I have it hooked to a Kenwood TM-V71A and the functionality has been excellent.

On the left mirror I put a Wilson 2000 and have it hooked to a RCI 2970n2. To be honest, I have had a lot less free time to explore 10M than I thought I would when I bought the radio and would have been fine with the Cobra 29 it replaced. Having had that experience, I am definitely not in any rush to get upgraded to general class and buy a higher end HF radio and figure out a more complex antenna solution. Someday I will. It's just not high on the priority list at the moment.

 

Drew the FT-7900 does come with a separation cable at HRO. And the SG-7500 antenna is a very good antenna. But you can purchase the Jetstream JTM-7505 it's the very same antenna it's just black and cost $35. I own both of them.

http://www.randl.com/shop/catalog/product_info.php?manufacturers_id=54&products_id=50214

 

I use a simple 1/4 wave 2m whip on my 2m/440 rig. These are what I use:

http://www.batteryclearance.com/motorola-0180352a06-antenna-1-4-wave-144-152-mhz.html

I got mine at the local commercial radio shop. I ordered 3, and get change back from my $20. They're practically indestructible, and work just fine on 440.

My FT-100 has 10m and 6m FM capability. I can't remember the last time I used FM on those bands.