What kind of antenna is this???

Status
Not open for further replies.

kruser

Active Member
Premium Subscriber
Joined
Nov 25, 2007
Messages
4,987
Location
West St Louis County, MO
If you still have one in good condition, I'd just clean it up and put it in the air. They were decent antennas.
Check the base and make sure nothing is cracked of course. It's basically an NMO base.
 

N9JIG

Sheriff
Moderator
Joined
Dec 14, 2001
Messages
5,581
Location
Far NW Valley
That antenna was the Antenna Specialists MONR31 (see attached picture) and here's the link to it at Universal Radio: Antenna Specialists MON-R31 Base Scanner Antenna
View attachment 82403
Yep, that is the correct model! I checked with the friend who had one and he confirmed it.

I checked my garage and it turns out I have 5 of the whips (2 MON-52 and 3 MON-51) as well as 4 of the base "Coils" and one of the MON-58 base station mounts. I was wrong when I said the base had threaded holes for the groundplane radials, the radials came with 2 nuts and the holes were smooth-bores. I have a couple of these antennas in the attic, one for sure has the A/S mount as shown in the picture and another has a Tram NMO base. I might also have another A/S base up there with a Comtelco whip on it, I can't recall and it is buried way back in the attic so I am not gonna venture back there.

82404

82405


82406
 

N9JIG

Sheriff
Moderator
Joined
Dec 14, 2001
Messages
5,581
Location
Far NW Valley
You guys have a wealth of information! So, the bottom line would be: Is this ancient antenna every good as something I would buy (or build) today, for VHF High and UHF? Should I just put it up again with all new fittings/coax and be done with it? I have no antenna analyzing equipment.
That is a fantastic antenna and it should work great. Be sure to use lockwashers on the nuts and properly weatherproof the connections and it will surpass almost anything out there. If you have a ohmmeter check the mount for continuity and inspect it for corrosion.
 

kruser

Active Member
Premium Subscriber
Joined
Nov 25, 2007
Messages
4,987
Location
West St Louis County, MO
That is a fantastic antenna and it should work great. Be sure to use lockwashers on the nuts and properly weatherproof the connections and it will surpass almost anything out there. If you have a ohmmeter check the mount for continuity and inspect it for corrosion.
I agree. I still use one to this day as a primary antenna for several of my radios via multicoupler(s).
 

N9JIG

Sheriff
Moderator
Joined
Dec 14, 2001
Messages
5,581
Location
Far NW Valley
My friend Matt (K9EMF) found this catalog page in his collection and sent it to me. It shows some of the several related antennas based on the MON-33. He and I had always been big fans of these antennas and we each had several versions.

83848
 
Status
Not open for further replies.
Top