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NMO or SO239 mount

This is the place to post your general tips, or need to have a question on your install here.

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MDYoungblood
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NMO or SO239 mount

Post by MDYoungblood » Monday, 05 June 2017, 15:36 PM

Which through the roof mount would you guys use for a dual band ham antenna? I don't mind drilling holes, I never cared for magnet mounts. The antenna will be in the 36" to 48" range.

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Greg
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443 Arizona
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Re: NMO or SO239 mount

Post by 443 Arizona » Tuesday, 06 June 2017, 0:46 AM

i think the nmo is a tad weak compared to the So. but make sure to add a big(custom) washer to either on the inside for added backing.
i used a big puck , but then i am running a whip.

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MDYoungblood
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Posts: 7088
Joined: Saturday, 12 June 2010, 19:05 PM
Radio: Uniden Washington
Antenna: Avanti Sigma II
Name: Greg
Location: Baltimore, MD

Re: NMO or SO239 mount

Post by MDYoungblood » Sunday, 11 June 2017, 14:25 PM

My plans are for 2 antennas on the roof, one dual band 2m/70cm and one to use for other bands but will probably be capped most of the time. I am kind of leaning toward the Sirio SO239 roof mount. I would like to find a SO239 that will let me use the LMR240 coax I already have. I've seen the **Non Sponsor** mount hefty for sure but pricey too.

3's

Greg
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"321, the Middle of Maryland"

23 AM "WORLD Image WIDE" 38 LSB

Strong Supporter of America's Original Homeland Security Act
The Second Amendment


Base
Uniden Washington
Mobile
Texas Ranger TR-696FD1C
Handheld
Maxon HCB-40WX
Antennas
Avanti Sigma II
Homemade Full Wave Loop
Homemade 1/2 wave Dipole
Hustler 102" SS Whip and Hustler Ball Mount

Official Moderator - CBRT Complaint Department



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Re: NMO or SO239 mount

Post by silvereagle1 » Saturday, 17 June 2017, 5:02 AM

I mounted my Larsen with the NMO mount through the roof of my Suzuki. I put another NMO mount on my Nissans Trunk lid. I only use the UHF mounts for my HF antennas. I don't think you can go wrong with the NMO for the dual band antenna application. The way they are designed you get double weather proof protection when using Larsen antennas. The NMO's are very sturdy for their intended purposes. There's not enough weight in dual band antennas to do any damage to the vehicle. I love the NMO mounting design. It must be pretty good almost all public safety and commercial vehicles use this design. To me it's a no brainer to go NMO but that's just my personal preference.

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Last edited by silvereagle1 on Saturday, 17 June 2017, 7:41 AM, edited 2 times in total.
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silvereagle1
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Re: NMO or SO239 mount

Post by silvereagle1 » Saturday, 17 June 2017, 5:02 AM

Duplicate post...
President Lincoln 2
Sirio Turbo 5000 Roof Mount
567 East Tennessee




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