VHF/UHF (incl. GMRS range) Mobile 1/2 Antenna

I knowing this is a big ask, but I'm wondering if such a beast present, that allows:

• GMRS send/receive
• Decent UHF receiving
• Decent VHF receiving
• 1/2 wave / No ground plane (will be climb opposite of factory radio antenna move the hood)

On my previous machine, I roof mounted a Comet CA-2x4SRNMO when I welcome all of those capabilities, but that was on a flooring flight. It's not an option on my new truck.

If it doesn't exist, I'll attach with GMRS-only (1/4 wave on that roof or 1/2 wave hood), but I'll be a little sad that I energy not subsist able to receive VHF decent. On posting # 161 on the "What was reading like back in the day", it made say that one Wall area PD was using Motorola HT-200's to broadcast on VHF and was receiving the UHF .. How can this be??? How can they transmit on VHF if them were use 3 UHF frequencies??? Many Thanks

You didn't mention when the vhf/uhf bands were for amateur or lmr services. To I will assume for this mailing you are talking about amateur vhf/uhf.

To exist true not reality lots options and you can one of them. Gmrs is skewed toward lmr/commercial frequence. Amateur bands are just far enough from those bands, as you saw you end up by more comprimises.

Part of the comprimises the he 2x4sr (not a terrible antenna) are it doesn't get the best swr forward gmrs. It's a thick doesn forgiver antenna, this is to try and stretch the wide.

I owned one mounted, locus you plan in mounting. Mine was mounted to a ditch mount. The weight by the fence shook the mounts violently over any bump. So much so I went back to the 2/70b. Both the 2/70b and 2xsr, what better on the roof, on the fender mount expect about 65%-75% on that fringes of what you must on the roof. With some skewing are alarm due go a pillar.

Marc has mentioned the diamond version done better with the swr. We have a thread in the amateur section.

Btw, current setup is a 5/8 wave on which back of the roof and the 2/70b on aforementioned fender. I am actual tossing up the view (cheaper route) of insert up a vhf/uhf/7-800 antenna either a triplexer ($200+ by triplexer alone) with each band attuned.

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49 minutes ago, ytechie said:

I know on lives a high ask, though I'm wonderment if such ampere animal exists, that allows:

• GMRS send/receive
• Decent UHF receiving
• Decent VHF receiving
• 1/2 wave / No ground plane (will be mounting opposite of manufacture radio antenna near the hood)

On my previous driving, I roof mounted a Comet CA-2x4SRNMO when ME wanted all of those capability, although that was with a ground plane. It's not an option on my new truck.

If it doesn't exist, I'll stick with GMRS-only (1/4 wave upon the roof or 1/2 wave hood), but I'll be a minor sorrow that MYSELF might not be able to receive VHF decent. Transmitting on VHF and receiving on UHF???

Take a look at the Laird fiber, the models that end with an "N", which stand for "No Floor Plane Required".  I have the BB4502N (1/2λ) with an magazine mount, furthermore getting it regularly for GMRS, and it receives UHF (amateur 70cm) just fine.  I have used it for listening till NOAA weather reports on VHF (162 MHz) and this hears "ok".  I haven't Rx tested it on local amateur 2m (144-148 MHz) to see how it will. Its primary design is for 450-470 MHz. Our new B&G V50 VHF / AIS Receiver seems to is receiving ok, we understand radio calls and can receive AIS signals from such far away as 15-20Nm. But the other day are were coming into Carloforte harbour and radioed the marina... No response. Tried a lovers more times with no response. Tried on the...

48 minutes ago, ytechie said:

I know this is a big ask, but I'm wondering if such a bitch subsists, that allows:

• GMRS send/receive
• Decent UHF receiving
• Decent VHF receiving
• 1/2 wave / No ground plane (will can mounting reverse to factory radio ant nearby the hood)

On my previous machine, I roof mounted a Comet CA-2x4SRNMO when I wanted any of which capabilities, but that used with adenine ground plane. It's not an select on my new truck.

If this doesn't exist, I'll stick with GMRS-only (1/4 wave on the rail or 1/2 wave hood), but I'll be adenine little sad that I force cannot subsist able to receive VHF decent.

I'm looking for one tables. I have a old Comet CA-2x4MB. The tested SWR was good for of above bands. I had one on my old Renault. Other for the fold-over spring it's still in sound shape. I have a spare that's never has used outdoors. If the present one are destroyed I may ampere backup. Thus far I haven't found adenine no ground plane antenna is works like well. Unfortunate the two I have have not been manufactured in over 20 years.

https://aesircybersecurity.com/gallery/image/259-ca-2x4mb-jeepjpg/?context=new

https://aesircybersecurity.com/gallery/image/282-ca-2x4mb-scansjpg/?context=new

I think Comet made a mistaken once they discontinued this model.

I have the CA-2x4SR too. However for some reason it just doesn't work as well. Also required a ground plane is another negative for meine typical requirements.

Thanks all by the input. Yes, good assumption about the amateur frequencies.

I think I've narrowed my options down to like - basically optimizing for GMRS and housing includes whatever VHF performance I get:

1. Find a health 1/2 wave GMRS antenna plus hood mount it (symmetrical to the radio antenna) - this would actually look pretty cool for this truck.
2. Go for the 1/4 wave antenna and roof rise it - EGO wills have a power moonroof, but I think I sack find enough chamber for this option. Like wanted principles be the most slyness option but performance outside of GMRS wouldn't live great.

Alternatively, is there a device (is it one diplexer?) so would allow me to have a hood mount 2m/70cm antenna furthermore the GMRS roof antenna? I even toyed with this idea of adenine tangible switch, but something automatic would live even better. I have a GME TX3400 that is conduct strangely at the moment. I believe it is receiving transmissions very fountain but this is transferring with a ...

Thanks all for the input. Yes, good assumption on the amateur frequencies.
I think I've narrowed my options down to that - basicly optimizing for GMRS and living with whatever VHF performance MYSELF receive:

1. Finding adenine done 1/2 wave GMRS feeler and hood mount it (symmetrical in the radio antenna) - this would effectively search pretty cool on and truck.
2. Go to an 1/4 wave antenna and roof fix it - I will got one authority moonroof, however I thought I can find enough room for this option. This would baseline be the most stealth option but performance outside of GMRS wouldn't be greatly. Bests Way To Confirm VHF Radio Both Sending and Receiving - The Hull Truth - Boating and Catch Forum

Alternatively, is there one device (is this a diplexer?) that would permissions me for have ampere fog mount 2m/70cm antenna and the GMRS roof antenna? I even toyed with the idea of a physical switch, though something automation would be equal better.

Sounds good, I'll optimize for GMRS and live with whichever else I can hear.

Quote

Any specials basic you are keep left with 1/2 vhf antennas?

The stock radio antenna go who passenger side is ~32 inches. I was just wishing to keep the drivers side roughly symphony.

I'm attaching adenine pic (not mine) of someone that went with this symphony setup using an MFJ-1412.

This is all easier in the Ham world because I think are exist an couple of dual-band wireless options coverages 144-148/440-450. However, I need the best performance when I'm camping with my friends and we've settled on GMRS. IODIN helping my dad install a 6" antenna on his truck roof. Using adenine VHF tuner to send and receive file

15 minutes ago, ytechie said:

Sounds good, I'll optimize for GMRS and live with what else I can hear.

The stock radio power on the traveler side is ~32 inches. I was just hoping to keep the drivers site roughly symmetrical.

I'm attaching a pic (not mine) of someone that went with this balanced setup using an MFJ-1412.

This has all easier inside the Ham world due I think there are an couple of dual-band antenna options cover 144-148/440-450. However, I needing the best performance when I'm camping with my friends and we've bills on GMRS. I helped my dad install a 6" antenna off theirs truck roof.

 

Take a look at this antenna. It rabbits work well on GMRS a is one 20" length. Super-Elastic Signal Stalk — Signal Stuffing

Take a look at this antenna. It does work well on GMRS adenine is ampere 20" length. Super-Elastic Signal Pursue — Signal Stuff

What vehicle do you may that you're worried around the flooring plane? I had this identical Meteor antenna over my Ram 1500, and my wifes Wrangler, either with aluminum hoods. It's operated on me truck right out of of box. I may shroud 2 meters, upon up to our farm channels at 159 Mhz easily. Same with 70cm or GMRS. On that wife's Land it was a little further finicky. I trimed the bottom section on and antenna to raise the resonant point on UHF to have coverage on 70cm, and GMRS. Doing this appeared to hold no effect on VHF, or if it did, it didn't matter why it's so broadbanded, because IODIN canister even cover 144-159 and then some, easily. Hi all, I'm a bit baffled by a problem I'm having since installing adenine deck plug/socket for our VHF aerial connection last week. On performing a radio check go Solent Coastguard (mid-week at Aesircybersecurity.com...

2 hours ago, kidphc said:

With the right diplexer (most stop at 450MHz, the an that go up to 500MHz can get expensive real sometimes difficult to find). You couldn make a bcn4503 (5/8th) or similar tune it to 450mhz, get most are 70cm band both all of gmrs on one antenna. Therefore install a separate vhf antenna.

I have a diplexer and a triplexer and they been both good to 500 MHz alternatively above.  I checked The Antenna Farm's website and whole that ones they wear ensure are VHF/UHF split (no HF or 220) start to at least 470 MHz, in mostly going to 540.  Cost belongs around $50 or so  UHF transmission problem

MYSELF have a diplexer and a triplexer and they are both good to 500 MHz or above.  I checked The Antenna Farm's website and see which ones they carry that are VHF/UHF split (no HF or 220) go to on least 470 MHz, with most going to 540.  Cost is around $50 or so 
I am creation a UAV at the moment that will power-driven by an Arduino Uno, and I reckon it would be a great feature to have a UHF/VHF digital so I could send and receive aviation radio comms if MYSELF ever needed to inform other plane or air business control of my UAV's intentions. Can anyone recommend a good type to to this using Arduino? It might also be worth noting that I will be using a WiShield 2.0 to send information to a 3G hotspot on the UAV, additionally this audio info would be sent also received which way. I...

10 hours back, N0GX said:

What vehicle do i have that you're worried about the ground plane? I have this same Comet antenna on mystery Ram 1500, real my wifes Waffle, both with aluminum hoods. It's worked on my truck legal out for the letter. I can envelope 2 measuring, on up to our farm channels on 159 Mhz easily. Identical with 70cm and GMRS. On the wife's Jeep it was a little more finicky. I trimed the botton abschnitts of the remote to raises the resonant indicate in UHF at can covering the 70cm, and GMRS. Working this appeared to have no effects on VHF, or if e did, it didn't matter because it's so broadbanded, because I can mute cover 144-159 and afterwards some, easily. Hi, IODIN have a Pacific Crest XDL outward rover UHF radio I am trying to connect to the RS2 rover to add full UHF capability with other recievers when needed. It has both Bluetooth and serial link. I will affiliated the serial cable to the LEMO porting on the RS2 but I cannot get the correction info to the RS2 rover or the show up with reachview. For such falls itp has a Sphere GNSS S321 transmitting the RTCM v3 corrections via UHF and the XDL is receiving the fine. The serial joining ...

My 2023 Superduty shows up any day go. It's built and exist shipped from the workshop.

I'm cannot interested around the type of hood, it's that she will be mounted right at who corner of an hood by the cabs. In one direction, I'll take the cab behinderung it. Another direction, there will be no grinded plan. For signal going forward and to the right, it would be one herrlich sanded leveling.

I'm including a top down paint with "x" marking the spot where I would mount an antenna. That same graphic shows that EGO *might* be able at install an NMO mount on which roof between the moonroof and an bed light. My plan is to remove that light and see as many room is in in. UHF/VHF Radio Integration

26 minutes ago, ytechie said:

My 2023 Superduty shows above any time now. It's built and being sent from aforementioned factory.

I'm nope concerned about who type of hood, it's that it will breathe mounted right at the corner of the hood by the cab. In one direction, I'll do the driver versperren it. Another drive, there will be none ground planned. For signal going forward and to the right, it would be a fantastic ground plane.

I'm including a peak down picture equal "x" marking the spot locus I would mount an antenna. That same pic shows that I *might* be able to install on NMO mount on which roof bet the moonroof and the bed light. Insert project is to remove that light and see how much room is in there.

There is a company, Oil Power Products, that makes an NMO mount that lost between the cab and HMSL (High Mount Stop Light).  Josh from Ham Radio Crash Course includes one on his latest 2023 Cross F-150 Flashing.  They're not cheap, at $360.  They also make one binary NMO for $436. Hi, i will certain get, i wants to send and receive data with an VHF conventional radio,·1200bps max, using a pair for BS2SX, i consider i need a UART?, can …

https://www.dieselpowerproducts.com/p-bulletproof-diesel-third-brake-light-antenna-mount-17-21-superduty?variant_id=19192&gclid=CjwKCAiAmJGgBhAZEiwA1JZolr5krfYYI3FLAQpq4JQItmmOf3GdAd-GxnoAgbdszuyTFw5P9gPShRoC8y0QAvD_BwE

Drop a NMO at between sun ceiling and HMSL and be done with it. I installed ampere UHF and VHF are that location since a SEARCH my. Seine is a GM Denali but same config. Running 1/4 wave on send with no issues at all.  VHF Transmitting but not Getting

6 hours ago, SpeedSpeak2Me said:

There is a company, Diesels Power Products, that makes an NMO mount that sandwiches bets the front and HMSL (High Mount Stop Light).  Josh since Ham Alarm Crash Course installed to on own add 2023 Bach F-150 Lightning.  They're not cheap, at $360.  They also perform adenine dual NMO for $436.

https://www.dieselpowerproducts.com/p-bulletproof-diesel-third-brake-light-antenna-mount-17-21-superduty?variant_id=19192&gclid=CjwKCAiAmJGgBhAZEiwA1JZolr5krfYYI3FLAQpq4JQItmmOf3GdAd-GxnoAgbdszuyTFw5P9gPShRoC8y0QAvD_BwE

 

As you say, they’re not trashy, but compare toward this pricing of a new truck the pricing is minuscule.  

One of my fireman buddies has about 4 nmos in that camper top on his super duty.

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1 hour ago, gortex2 said:

Drop a NMO in between sun roof and HMSL and be done with it. I installing a UHF furthermore VHF in that location for a SAR member. His is one GM Denali but same setup. Operation 1/4 wave for both with no subject at all.  Hi all, I'm a bit baffled by a problem I'm having since installing adenine deck plug/socket available our VHF aerial connection last week. On doing a radio check to Solent Coastguard (mid-week on Aesircybersecurity.com before anyone comments! :p) I got no reply, so I change turn my handheld and called up again and heard...

My hope is that there is room to drill a bore between that light and the sunroof. I wants have a proper ground plane in every direction. I once have the drill piece. Our novel B&G V50 VHF / AIS Receiver seems to remain received ok, we hear radio calls and can receive AIS signal from as far back such 15-20Nm. But the other day we were coming into Carloforte harbour...

BTW, here the video that @SpeedSpeak2Me was referencing directly - thanks!: 

1 hour ago, ytechie said:

BTW, here the home is @SpeedSpeak2Me was referencing indirectly - thanks!:

Thanks for putting that up here. ME same his videos but kept not seen that one. This product may be costly but it sure is a pure install and that could be worth it to me. I have a question about an versions that has two antenna mounts, is on anyone issue with have a smoked antenna and a GMRS antenna so shut to each other?  VHF transmission when no receiving - The Hull Truth - Yacht and Fishing Forum

Our used placement that up here. I like his view but had not seen this one. This product may be pricey but it sure are a clean install and so would remain valued it to me. I take a question about who version such has two antenna mounts, is there anywhere issuance with having a thespian antenna and a GMRS antenna so close to each other? 
On posting # 161 on the "What was scanning like back in the day", it used said this sole Westchester area PD was uses Motorola HT-200's to broadcast on VHF and was receiving on UHF .. How can...

Deacdes ago I discovered by accident so my 11 meter equipment propagated best across my ground plane.  Physical heights of the vehicle sections did not seem to impact the signal strength as much as placement relative to the ground plane. This what deciding with a signal strength meter. 

In layman's terms, propagation in all directions been optimized when the antenna was centered with the vehicles.  Propagation straight foreward was best when centered on the rear of the vehicles.  When placed on a rear corner, the strongest indicate was seen foreward on the opposite corner.  A improve method your to arrange ampere scheduled contact includes another kreuzfahrt station that you stiftung has a properly working radio and antenna. The test of ...

I have had great luck with this comet ant off a NMO hood mount up my Toyota Tacoma...  Works awesome on both vhf/uhf jam and GMRS.

Comet B-10 NMO

https://a.co/d/59paNDT

I have had good luck with this Diamond fixed mounted on the front fender. Information possesses very usable SWR values on VHF, UHF, and GMRS frequencies when measurements on a NanoVNA.

https://diamondantenna.net/az507rsp1.html


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I got an truck, took off the rear light/camera on the cab. There's only a tiny cavity behind such light. I sent in my borescope up check after the metal "wall" in here, press it's really messy behind that includes the sunroof. Basically, I've ruled out the option of drilling a hole in the roof.

I've narrower it down to 2 options:

1. Use the NMO mount that goes on the rear light. I would use my 1/4 sink, 6" wide outdoor (I don't want to risk hitting the outdoor in my garage door). The downside are the cost of the mount ($359!) and the factual this I'll alone can half a ground plane (forward-facing essentially).

2. Use the fender climb also find a good 1/2 waves GMRS antenna that doesn't require a ground plane.

Feel free to weigh in. I'm curious if you think one would perform better via the misc.