AT-N2RS NMO Antenna

[jbecraft]

i already have one of these, how do they perform... i'll have further questions but i wanna start here...

 

https://www.ebay.com/itm/AT-N2RS-NMO-Antenna-144-430MHz-VHF-UHF-Mobile-Car-Ham-Two-way-Radios-transceiver/122850528998?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

[berkinet]

I know nothing about that antenna. However, I can tell you two things for certain.

 

#1. Antenna gain (the apparent strength of your signal at some arbitrary point) will almost always be a function of the antenna length. Shorter antennas generally give less perceived gain.

#2. The antenna you linked to is a dual-band antenna with a broad UHF coverage and is not specifically designed for GMRS. So, performance, especially on repeaters, may be less than perfect.

 

Based on the 2 points above I would not expect great GMRS performance from this antenna. However, if you are only working a local, well situated, repeater and want an unobtrusive antenna, this might work well for you. Especially if you think you might run a VHF radio at some point.

[Lscott]

I have a buddy who got one like this, not your exact model because his had a PL-259 type base, to use on his Jeep. I ran an SWR scan test on it using a RigExpert AA-1000 antenna analyzer.

 

https://pncengineering.com/rigexpert/328-aa-1000.html

 

Looking back over the test results I got the following SWR measurements:

 

VHF

 

144 MHz - 1.52:1

145.5 MHz - 2.10:1

 

UHF

 

430 MHz to 456 MHz - under 1.6:1

462 MHz - 2.3:

467 MHz - 1.8:1

 

The last two cover the GMRS band. As you can see the measurements are not that good. On VHF, well unless you're operating on a fixed frequency in the range above, forget it.

 

The antenna he got was most likely some Chinese design he purchased from an Amazon source. So from a quality point who knows.

 

Yours might work better. I would most definitely test it before running any significant power out of a connected radio. 

[Jones]

It is the same thing as the Wishring HH-N2RS that sells on Amazon.  It has a 3 out of 5 stars rating.

 

Reviews:

www.amazon.com/Wishring-HH-N2RS-Antenna-400-470-136-174MHZ/dp/B019C2GWX0#customerReviews

[wayoverthere]

as mentioned, what you want will depend on what you want it to cover; a quick search of "450-470mhz antenna found these...

 

similar form factor, probably better tuning::

https://www.ebay.com/itm/Larsen-LPT450NMO-450-470MHz-Shadow-Covert-Phantom-Disguise-Antenna/223179704173?epid=9024582415&hash=item33f68c076d:g:fz4AAOSw5SpbukVQ

 

https://www.ebay.com/itm/Laird-Technologies-TRAB4503-450-470-MHz-UHF-Two-Way-Radio-Phantom-Antenna/224007233881?hash=item3427df2159:g:p~YAAOSwkpxeuZiI

 

for still having some gain these are fairly small (12"):

https://www.ebay.com/itm/Laird-Technologies-B4503-UHF-450-470-MHz-3dB-5-8-Wave-Mobile-Antenna/223126659697?hash=item33f362a271:g:~N0AAOSw8FtbisVO

 

https://www.ebay.com/itm/Larsen-LPT450NMO-450-470MHz-Shadow-Covert-Phantom-Disguise-Antenna/223179704173?epid=9024582415&hash=item33f68c076d:g:fz4AAOSw5SpbukVQ

 

and this one is no gain, but about as unobtrusive as they get (6"): https://www.ebay.com/itm/Laird-Technologies-QWB450-UHF-450-470-MHz-Mobile-Antenna-NMO-6/222917653624?epid=668989645&hash=item33e6ed7478:g:Yn8AAOSw-SBay~9m

[jbecraft]

what about the original post type ant. only in a single uhf band how would it perform compared to the 6" ...i ask cause i get spare radio parts from my work, i can get either in single uhf band, which would be better...

[berkinet]

The standard 1/4 wave will out perform any stubby antenna.