Mobile Antenna

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Mark SNE Moderator
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Mobile Antenna

#1 Post by Mark SNE Moderator » 16 Feb 2019 20:22

Anyone have experience with this type of antenna?


https://www.ebay.com/itm/3-NMO-mount-wi ... 2a60b82661

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garys
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Re: Mobile Antenna

#2 Post by garys » 16 Feb 2019 23:22

That will work pretty well for 700/800/900 Mhz, but it's a zero gain quarter wave (more or less). It's not specifically a scanner antenna.

What are you trying to listen to, besides the MSP trunk and 800Mhz police departments on the Cape?

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Mark SNE Moderator
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Re: Mobile Antenna

#3 Post by Mark SNE Moderator » 17 Feb 2019 19:31

That's about it, Gary. Was curious how it can claim to be tuned to multiple bands with such a compact size.

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garys
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Re: Mobile Antenna

#4 Post by garys » 17 Feb 2019 19:41

It's Ebay Mark. Lots of people claim lots of things that aren't even remotely true. That's either through ignorance or dishonesty. It's why you really need to read the listings with care and know what you're looking at or for. If I were trying to listen to the 800 stuff only, I'd look for something more along these lines https://www.ebay.com/itm/Larsen-NMOSPEC ... rk:22:pf:0

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JBP
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Re: Mobile Antenna

#5 Post by JBP » 17 Feb 2019 21:15

My guess is that is the *possible* frequency range of the antenna and you would cut it to the center frequency you want and the *actual* range would be much more limited.

BUT since it states that it's 3" this antenna has already been cut to a 1/4 wave on ~800 MHz. You could cut it again to go higher in frequency but not lower.

Agree it's a case of Ebay seller laziness, probably have a listing for every band and just copy/paste.

Would probably be a good 800 antenna, just need a groundplane under it.

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Mark SNE Moderator
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Re: Mobile Antenna

#6 Post by Mark SNE Moderator » 17 Feb 2019 21:29

Thanks for the replies. I was only curious about this antenna. I currently use a Larsen Tri Band antenna in my car, I also have a Laird 800MHz "stubby" antenna, both work great. While on the subject, how does the Comtelco tri band antenna sold by Scannermaster compare to the Larsen tri band?

MrSvenSven
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Re: Mobile Antenna

#7 Post by MrSvenSven » 18 Feb 2019 08:51

The Comtelco A11331 antenna has a very thick metal rod and a cheap plastic base. They break very easily. The scanner master web site doesn't say what model the comtelco antenna is, but it looks like the A11331. I like the Larsen NMO150/450/758.

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Re: Mobile Antenna

#8 Post by garys » 18 Feb 2019 15:12

I had one of those Comtelco antennas some years back and was not impressed. Overall Larsen has a pretty good reputation. I think they're "Laird" now. If length isn't an issue, the Hustler multiband scanner antennas are very good.

The old RS scanner antennas were pretty good too, although they tended to rust after a couple of years.
MrSvenSven wrote:
18 Feb 2019 08:51
The Comtelco A11331 antenna has a very thick metal rod and a cheap plastic base. They break very easily. The scanner master web site doesn't say what model the comtelco antenna is, but it looks like the A11331. I like the Larsen NMO150/450/758.

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JBP
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Re: Mobile Antenna

#9 Post by JBP » 18 Feb 2019 17:43

garys wrote:
18 Feb 2019 15:12
I think they're "Laird" now.
Antenex -> Laird
Larsen was Radiall/Larsen at some point but is now just Larsen again
and also Maxrad ->PCTel

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garys
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Re: Mobile Antenna

#10 Post by garys » 18 Feb 2019 19:55

It's hard to follow the players without a program. ;)

Thanks.
JBP wrote:
18 Feb 2019 17:43
garys wrote:
18 Feb 2019 15:12
I think they're "Laird" now.
Antenex -> Laird
Larsen was Radiall/Larsen at some point but is now just Larsen again
and also Maxrad ->PCTel

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ScanBoston
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Re: Mobile Antenna

#11 Post by ScanBoston » 19 Feb 2019 12:25

And what happened to Antenna Specialist?

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garys
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Re: Mobile Antenna

#12 Post by garys » 19 Feb 2019 15:56

Sold to PCTel in 2004 from what I can find. I don't think any of their old products are still sold. I think PCTel also owns Maxrad in addition to Antennex.


ScanBoston wrote:
19 Feb 2019 12:25
And what happened to Antenna Specialist?

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