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Reviews Categories | Antennas: VHF/UHF+ Omnidirectional: verticals, mobile, etc | Larsen NMO 2/70 Help

Reviews Summary for Larsen NMO 2/70
Larsen NMO 2/70 Reviews: 57 Average rating: 4.6/5 MSRP: $54.00 @ HRO
Description: dual-band 2m/440 nmo mount mobile
Product is in production.
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KK9H Rating: 5/5 Apr 22, 2019 14:40 Send this review to a friend
Long time owner  Time owned: more than 12 months
I bought my first Larsen NMO 2/70 back in the mid-1980s to use with a Larsen magnet mount. It had a gray plastic coil on the bottom and an enclosed coil on the whip. That antenna lasted for over 25 years being shifted from car to car, taken on trips and used for too many volunteer events to count. It was also frequently used with the Larsen base station antenna kit for temporary base station setups. After all that time I replaced it with the current version and gave my original one to a friend who installed it on top of the mast on his sailboat. The NMO 2/70 works as described by others as a 1/2 wave on 2M and a double 5/8 wave collinear on 440. For me its performance has been solid and reliable. SWR measurements have always been perfectly acceptable in both mobile and temporary base configurations. I consider it to be the standard in durable and reliable long lasting dual band mobile antennas.
W5EJ Rating: 5/5 Aug 20, 2017 11:51 Send this review to a friend
Simply works and built tuff  Time owned: more than 12 months
I own 3 of these and have used the on two vehicles for APRS, ARES and RACES in all sorts of Texas weather. Never an issue, I tune mine with an good SWR when I get them and then I never have to touch them again. I use them both with an UHF and an NMO adapter and with an NMO adapter and all works without an issue. I like their ruggedness and build quality mine have been abused yet continue to work.
KC9BUH Rating: 2/5 Aug 20, 2017 05:40 Send this review to a friend
not so great  Time owned: more than 12 months
I've had a couple of the base coils crack. Won't buy any more larson products.
K4KXX Rating: 5/5 Aug 19, 2017 10:53 Send this review to a friend
The very best  Time owned: more than 12 months
After having a larson on my patrol car for many years, then putting one on my patrol boat, now having one on my personal car, there is only one thing I can say. ARE YOU KIDDING ME? Nothing, absolutely NOTHING is better. Buy one, you won't be disappointed
KJ4PR Rating: 5/5 Aug 8, 2017 08:42 Send this review to a friend
Long Life  Time owned: more than 12 months
I have had this antenna on all my vehicles starting with my Volvo back in 1982. It has hundreds of thousands of road miles on it. Still works great and in use now on a 2010 Ford Escape. 35years and still working great under the hot Key West sun for 35 years!
ZS1SA Rating: 5/5 Oct 18, 2016 12:07 Send this review to a friend
Built to last  Time owned: more than 12 months
I purchased my Larsen antenna in 1989. It has been mounted at the top of my tower with the optional radial kit ever since and still working 100 percent today, 27 years later. I am still working the same repeaters 40 miles away that I worked when I first installed it. Well built product.
K5ACL Rating: 5/5 Jul 22, 2016 12:26 Send this review to a friend
Larsen kicks the Diamonds butt!  Time owned: 6 to 12 months
So over the last 9 months, I've been testing out a Larsen 2/70 nmo antenna against a Diamond NR770HNMO.

I have a little write up that you can follow along here:

The Larsen just wins in every category IMHO, ruggedness, ease of install, parts replacement, looks, reliability, you name it. It was also a few dollars cheaper than the Diamond.

I do miss the ability to fold the antenna over, but I keep a crescent wrench in my truck, and it takes me two seconds to remove the whip if needed.

The base of the unit is just so much more stable than these other antennas on the market today. The SWR was also slightly better on UHF on the Larsen, not sure if it's due to the additional coil & shortening of the whip? SWR was the same on VHF.

The Diamond would occasionally gather moisture on the nmo contact point, the Larsen seals against the sheet metal preventing this.

It's a no brainer...
VE6BGM Rating: 1/5 Jun 12, 2016 20:24 Send this review to a friend
Bingo  Time owned: 0 to 3 months
Having heard all the great things about this Larsen antenna, I bit the bullet and bought one. Did not check SWR. Changed mounting position and thought I better check SWR. Way out of wack. I thought it was just the position of where it was mounted. Thought I would put a couple of other manufacturers antenna on the same mount and Bingo, no SWR problems. Tried 3 different antennas from different manufacturers and SWR on 2 and 70 were right on without any adjustments. Will try the Larsen again when I have time to play with it but my first impression is why spend all that money.
N8DJR Rating: 4/5 Jun 12, 2016 08:42 Send this review to a friend
Great until the wee little capacitor blows  Time owned: more than 12 months
Larsen was acquired by Pulse Electronics in 2006, Larsen becomes a Pulse brand with factories in of all places CHINA. Until recently I have noticed a few quality control issues with the loading coils specifically with the capacitor soldered to the copper coil winding inside the loaded base. Don't get me wrong these are still one of the top dual band hi gain mobile antennas out there but beware of some duds, if you find yourself with high SWR and can't understand why, now you know!
KC7YRA Rating: 5/5 Jun 11, 2016 16:42 Send this review to a friend
Simply unbeatable service life  Time owned: more than 12 months
I own several of these critters, one of them has a couple hundred thousand miles on multiple different vehicles. This is through driving -40 degree blizzards, to +110 degree summer heat waves, high in the Wyoming mountains. Through it all, they just keep working.

I've tried every kind of mobile VHF/UHF antenna on the market. most will only last a year or two here. Hit a tree branch at 35mph when it's -40 degrees outside . . . . The cheap brands will shatter like ice.

If you are contemplating a mobile antenna, I'll give you some advice. Look at all of the critical duty vehicles in your area (police, fire,EMS). What antennas are they using? I can guarantee they are not some amateur off brand from across the ocean. If you want reliability look at the Larsens.
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