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GMRS / FRS - Discussions related to GMRS (General Mobile Radio Service) and FRS (Family Radio Service) communications

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Old 05-16-2018, 1:39 PM
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Default Antenna

OK,I have done a search of the GMRS forums to no avail,so I'll ask here. I need a good mag mount antenna for GMRS to attach to a hand held. I plan on switching between multiple vehicles hence the need for a mag mount. So let's hear y'all's suggestions.
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Old 05-16-2018, 2:00 PM
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Well, if you're strictly doing GMRS, a UHF 450-470 quarter wave whip is probably quite sufficient. You can easily find NMO magnet mounts for under $30, and the whips are frequently sub-$10 (Larsen, I expect other brands are similarly priced). The advantage to an NMO mount is that if you expand your frequencies, you only need a corresponding whip.
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Old 05-16-2018, 2:35 PM
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https://www.arcantenna.com/nmoqw144-...-nmo-base.html

Mag mounts available from similar sites, HRO, etc. You can be up and running under $50.
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Old 05-16-2018, 2:49 PM
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Quote:
Originally Posted by K5BBC View Post
https://www.arcantenna.com/nmoqw144-...-nmo-base.html

Mag mounts available from similar sites, HRO, etc. You can be up and running under $50.
Thanks
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Old 05-16-2018, 4:39 PM
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After 30 years of being in this line of work, I can confidently recommend the Larsen brand products. While you can find less expensive antennas and mounts, you will not beat the quality and value. I'm running 20+ year old Larsen antennas, I use them almost exclusively for personal and work use. I've never had one let me down.
There are also other really good brands, Laird, MaxRad, etc.

Different radios have different antenna connectors, so you'll need to pick a radio to know which one you need.

I'd recommend this mount:
https://www.theantennafarm.com/catal...nmommrfme-4523 $29.95

I'd recommend this antenna:
https://www.theantennafarm.com/catal...gies-qw450-797 $6.95
It's already tuned for the GMRS frequencies, so all you need to do is install it. No cutting or tuning required.

You'll need one of these adapters to go between the magnetic mount cable and your radio:
https://www.theantennafarm.com/catal...-adapters-320/

A quarter wave antenna, like I linked to above, will give you good all around performance. There are other higher gain antennas you can use, but higher gain antennas come at a trade off. Try the $6.95 quarter wave antenna first and see how it works. You'll always have a use for it, so it won't be lost money if you decide to go with something else later on.

I'd also recommend steering clear of the Chinese knock off antennas. Tram, Browning, and a few others are lower cost, lower quality replicas.
Also, stay away from the amateur/consumer grade antennas. Most of them are not designed for GMRS frequencies, and no matter what they claim, they have no magic to them that makes them work better than the commercial antennas.

A good basic antenna and mount will provide a lot of options at a low cost. Sticking with the NMO mounts will let you choose from the widest selection of antennas down the road.
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Old 05-16-2018, 4:43 PM
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Quote:
Originally Posted by K5BBC View Post
I think you mistakenly provided a link to a VHF quarter wave antenna. While it could be trimmed down to work on UHF, the OP would be better off with a 1/4 wave whip already set for the 450-470MHz range.
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Old 05-16-2018, 6:38 PM
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Give me a 5/8 wave ground plane over a 1/4 wave any day. Features better suit my needs.

Sent from my SM-G965U using Tapatalk
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Old 05-17-2018, 1:39 PM
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I have been having good luck with this antenna. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Old 05-21-2018, 1:23 PM
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Quote:
Originally Posted by DennisKink View Post
Thanks
https://www.arcantenna.com/nmoqw144-...-nmo-base.html
I found what I wanted on this site,but shipping time was 6-8 weeks.WOW!!!
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Old 05-30-2018, 11:05 AM
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Quote:
Originally Posted by mmckenna View Post
After 30 years of being in this line of work, I can confidently recommend the Larsen brand products. While you can find less expensive antennas and mounts, you will not beat the quality and value. I'm running 20+ year old Larsen antennas, I use them almost exclusively for personal and work use. I've never had one let me down.
There are also other really good brands, Laird, MaxRad, etc.

Different radios have different antenna connectors, so you'll need to pick a radio to know which one you need.

I'd recommend this mount:
https://www.theantennafarm.com/catal...nmommrfme-4523 $29.95

I'd recommend this antenna:
https://www.theantennafarm.com/catal...gies-qw450-797 $6.95
It's already tuned for the GMRS frequencies, so all you need to do is install it. No cutting or tuning required.

You'll need one of these adapters to go between the magnetic mount cable and your radio:
https://www.theantennafarm.com/catal...-adapters-320/

A quarter wave antenna, like I linked to above, will give you good all around performance. There are other higher gain antennas you can use, but higher gain antennas come at a trade off. Try the $6.95 quarter wave antenna first and see how it works. You'll always have a use for it, so it won't be lost money if you decide to go with something else later on.

I'd also recommend steering clear of the Chinese knock off antennas. Tram, Browning, and a few others are lower cost, lower quality replicas.
Also, stay away from the amateur/consumer grade antennas. Most of them are not designed for GMRS frequencies, and no matter what they claim, they have no magic to them that makes them work better than the commercial antennas.

A good basic antenna and mount will provide a lot of options at a low cost. Sticking with the NMO mounts will let you choose from the widest selection of antennas down the road.
I have bookmarked my shopping cart on all of your recommendations,but they are closed until June 1st,which is Friday.
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Old 05-30-2018, 12:02 PM
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Quote:
Originally Posted by DennisKink View Post
I have bookmarked my shopping cart on all of your recommendations,but they are closed until June 1st,which is Friday.
They usually ship pretty quick, so that will be in your benefit.
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Old 06-02-2018, 9:59 AM
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Quote:
Originally Posted by mmckenna View Post
They usually ship pretty quick, so that will be in your benefit.
Got everything ordered.Thanks for your help and recommendations.
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