2 Meter Radio and NMO Mount Antenna Installation - Chevy Tahoe Z71 (Part 1)
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- Опубликовано: 13 сен 2024
- I show how I installed an NMO mount and 2 meter antenna in a 2004 Chevy Tahoe. This is part 1 of a 2 part video series showing installation of a 2 meter NMO style 5/8 antenna and Icom IC-2100 2 meter transceiver in a 2004 Chevy Tahoe Z71.
Link to part 2:
• 2 Meter Radio and NMO ...
Good job. I found this looking for an install for a pick up but it was fun to watch. On to part 2.
Good install, planning on doing this for my VHF/UHF radio for Fire/EMS. Had no idea how to do it until watching. Thanks for the very detailed video!
Great Job!
Just what I needed for my install in my 2005 Tahoe!
Thank you!
I've never been brave enough to drill a hole in the roof of a car. Maybe someday? Nice install so far. Looking forward to part two.
Thanks RG! I'm a little hesitant to drill holes too but since this truck is a "beater" and I plan to keep it until it rusts out or has some other catastrophic mechanical failure I figured I didn't have anything to loose.
The NMO mount is the ONLY mount that will not leak. Even better is the Breedlove NMP mount.
Breedlove NMO not NMP. Sorry bout that.
The true NMO is 3/4 inch-that one is 3/8 inch hole
The true NMO - NEW MOTOROLLA MOUNT is 3/4 inch hole mounted.Designed to be able to feed the PL 259 and coax thru from the outside with the mount too big to fall thru. Pull down the headliner from one side,slide a roll of duct tape to keep down and use the titanium unibit from Harbor Freight as it de burrs.Then reach in ,pull the coax and tape out and put the weatherstrip back into place.
We used to use these on the roof of school busses when we used 5/8 wave antennas. They stood less of a chance of ripping out of the roof verses the 3/4 inch mount when they hit really low hanging stuff. Even with springs drivers were rough on em.
Very solid video. Liked and subbed. Cheers.
Very nice neat installation
Thanks!
NOT HATING ON YOUR VIDEO, ITS GREAT WHEN PEOPLE SHARE INFO. BUT A FEW CONSTRUCTIVELY CRITICAL POINTS...1ST, WRONG MOUNT, THE 3/8 TYPE ARE FOR THICK MOUNTING LOCATIONS IE: FIRE TRUCK, DOZER, ARMORED CARS, MOTORCYCLE RADIO BOXES, SHIPS, ETC. YOUR CENTER CONDUCTOR IS SO HIGH, THE ANTENNA CANT PROPERLY MATE ALL THE WAY DOWN TO THE ROOF. 2ND. STANDARD NMO KIT HAS FACTORY ATTACHED RG58 COAX PROPERLY SOLDERED TO PREVENT MELTING THE DIELECTRIC BETWEEN CENTER AND SHIELD. 3RD. RG58 VS MINI 8 VS LMR400 UNDER 20FT IN LENGTH MAKES A NOMINAL DIFFERENCE .01% . P.S. LMR400 WONT FIT A NMO MOUNT. MAYBE LMR200 OK. 4TH FISHING COAX THROUGH A VEHICLE IS MUCH EASIER WITHOUT THE CONNECTOR INSTALLED (USE A FISHING POLE TIP, OR FIBERGLASS FISH RODS.) 5TH. CONNECTORS, (SOLDER OR CRIMP TYPE) ARE MUCH EASIER TO DO ON THE BARE CABLE ON THE FRONT FLOORBOARD NEAR THE RADIO. 6TH USE SILICONE LUBE ON O RING AND INNER AND OUTER THREADS OF MOUNT TO PREVENT SEIZING. 7TH YOU MENTIONED THE GROMMET FOR THE POWER LEADS, MAKE SURE YOU FOLLOW THROUGH. AND LASTLY....LOL. YOU SHOULDNT DISGRACE THAT POOR YAESU SPEAKER, WITH PLAYING ICOM AUDIO......LOL P.S.S. ALWAYS SCRAPE GROUNDING POINTS TO BARE METAL, AND USE A STAR WASHER TO ADD BITE FOR GOOD SOLID GROUNDING.
Hmm with all that coax coiled up for later use aren't you worried about creating a choke? Just asking.
I'm sure there is some extra loss due to the longer coax but there doesn't seem to be any negative effects to coiling it up like I did.
In high school we had a much different use for them hemostats.
What kind of cable is the rg58mi cable you are using?
It's rg8x that I got at a hamfest or maybe Amazon...I don't recall exactly now
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55 W RF and a OBD2 port...not a great idea. I'd have gone down the passenger side. That being said, hope it all works great for you.
No issues...it works fine
Isn't one of the most major rules of thumb regarding vehicle antenna mounting to have NO COILED UP antenna cable when you're done? Isn't it better to run it somewhere and back track the cable than coiled up? Other than that this looks grrrreat! Love that NMO mount. Nice a small 3/8" hole makes for a very nice install. :)
I've heard that too but never had any problems with coiling excess coax in a car or elsewhere for that matter. In fact, as you may know an intentional coil of coax can be placed near the antenna to help decouple the feed line and prevent RF on the coax shield.
Right on.... I'll be honest, up untill recently I always had about 6 feet neatly coiled extra cable in my trunk and never noticed any issues either from 25W right on up to 60W with a dual band 3.1/3.5 gain antenna. some ham friends of mine went mental when they saw it and blabbed on and on about how badly it negatively impacts signals. Well I said have at it and they neatly cut down my cable length for me and I too have found no discernable difference in any way shape or form using VHF and UHF... thanks for your reply and taking the time to add your two cents of real life experience to my question.
Indiscriminate coiling has no effect, unless it perferfectly coiled. If each coil is the same diameter and next to each other, like wrapping the coax on a pipe, then yes, it can have a choke effect.
your wrong about the rg8x. for vhf/uhf use lmr400, for ease of mobile use the flexible lmr400
rg8x way to lossy for these frequencies, all my radios run lmr-400 flexible in the car
A 20-25 feet run like I have here of 8x has about 1db loss. LMR400 flex is less lossy at about .375 db for 20 feet. Even at UHF frequencies the difference between the two isn't all that much: ~2db for the 8x and ~.7db for the LMR400. Considering 1 S-unit is roughly 6db the difference between the two on VHF and UHF for a mobile install is kind of negligible. In other words, I don't think the extra cost of the LMR400 is worthwhile for a mobile installation. For a longer run on a base station I'd go for the LMR400 but not for a short run in a mobile "beater" that is used for repeater and close simplex work.