Jump to content
  • 0

Business Band Antennas?


PartsMan
 Share

Question

9 answers to this question

Recommended Posts

  • 0

You could possibly use some of those. Many Larson 5/8 wave NMO antennas  were for 450-470 MHz. I would definitely check with a meter and tune as necessary. I have used many commercial UHF antennas for GMRS use myself. If they are 450-470 MHz antennas, then they work great for GMRS with 462-467 MHz, right in the middle "sweet spot" for the antennas. However, there are some that are for lower UHF frequencies, 403-450 MHz, which will look a lot like the higher frequency versions, those will show higher SWR with a meter, and should not be used for GMRS. With the antenna being the most important part of using a radio, you do not want to fry a radio with a mistuned or different band antenna, it is not worth it to save a few dollars. But, that picture looks like they could be 450-470 MHz and great for GMRS.

Link to comment
Share on other sites

  • 0
7 hours ago, PartsMan said:

There model numbers indicate 450-470.

If it were my antennas and radio, I would be fine with using them for GMRS. The GMRS band is right there in the middle of 450-470 MHz, so it would not be a big deal for me to go ahead and use them without a meter. My only concern would be if I could not hear/receive anything on the radio, as that would point toward broken connector, center pin or spring on the antenna to base connection, or some other broken component. While others may state that you must never use a radio and antenna combination without checking SWR, knowing what that antenna was made for, it is probably fine to go ahead and use them for GMRS, at your own risk of course. Those antennas and mounts may look pretty cool on an older car, for that retro look for sure. 

Link to comment
Share on other sites

  • 0

Larsen typically would print a model number on the bottom of their antenna's.  Unscrew the NMO base from the mount and see if the number is there.  Then look up the number and see what frequency band it is.  Don't assume they they are right,  seen the wrong antenna's used with a radio many times

 

Link to comment
Share on other sites

  • 0
On 1/26/2022 at 1:40 PM, PartsMan said:

I tried it for the last two days. Receiving is much better than the rubber duck in the truck.

Glad that is working out for you.

For other possibilities:

For most of my use cases with GMRS, I am running some sort of Motorola radio. So I end up using lip mounts with a NMO (New Motorola) base, and a Laird 1/4 wave 6" long antenna. they are fairly discrete, yet still get out well when mobile. 

Shown in my picture is a magnet mount Laird GB8UM with mini-UHF connector (for mobile Motorola radios), and a Laird QW450 (to 470MHz) antenna that works very well with GMRS in the 462-467 MHz spectrum. 

Laird 450to470.jpg

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use and Guidelines.