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UHF Laird Phanton elite shark fin antenna bad tune

This forum is dedicated to helping people with questions about installing radio equipment in vehicles. This can include antenna installs, electrical wiring questions/problems, and mounting systems. Pictures of installs are welcome.

Note: Discussions regarding lighting, sirens, and other equipment now has its own forum in the 'off-topic' section below.

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KitN1MCC
Posts: 1874
Joined: Wed Jan 16, 2002 4:00 pm
What radios do you own?: ht1550 XLS,6 MT-1000,

UHF Laird Phanton elite shark fin antenna bad tune

Postby KitN1MCC » Tue Jul 29, 2014 4:19 pm

I picked up a set back in 2012 and had them on the Shelf. I installed one on my new truck today and i could not get better than an swr of 2.0 tried the other one same thing. has any one else had issue with these

Jim202
Posts: 3483
Joined: Sun Sep 09, 2001 4:00 pm

Re: UHF Laird Phanton elite shark fin antenna bad tune

Postby Jim202 » Tue Jul 29, 2014 5:19 pm

KitN1MCC wrote:I picked up a set back in 2012 and had them on the Shelf. I installed one on my new truck today and i could not get better than an swr of 2.0 tried the other one same thing. has any one else had issue with these



Have you tried different lengths of feedline going to them?

Jim

KitN1MCC
Posts: 1874
Joined: Wed Jan 16, 2002 4:00 pm
What radios do you own?: ht1550 XLS,6 MT-1000,

Re: UHF Laird Phanton elite shark fin antenna bad tune

Postby KitN1MCC » Tue Jul 29, 2014 6:45 pm

its a mobile install i will see if that works

User avatar
FireCpt809
Posts: 1807
Joined: Sat Jan 19, 2002 4:00 pm
What radios do you own?: Alot..

Re: UHF Laird Phanton elite shark fin antenna bad tune

Postby FireCpt809 » Wed Jul 30, 2014 6:10 am

The UHF are non-tuneable so the only option you have is to keep the feed line as short a possible with a small loop for service on the radio. We have a few departments that use them on their low profile and detective cars. Never had an issue.

fineshot1
Posts: 910
Joined: Wed Oct 12, 2005 5:13 am

Re: UHF Laird Phanton elite shark fin antenna bad tune

Postby fineshot1 » Wed Jul 30, 2014 12:02 pm

FireCpt809 wrote:The UHF are non-tuneable so the only option you have is to keep the feed line as short a possible with a small loop for service on the radio. We have a few departments that use them on their low profile and detective cars. Never had an issue.


+1 - same situation for us and we have no problems with any of them
fineshot1
NJ USA

VE3HKB
New User
Posts: 53
Joined: Fri Aug 07, 2009 11:11 am

Re: UHF Laird Phanton elite shark fin antenna bad tune

Postby VE3HKB » Wed Jul 30, 2014 4:33 pm

Is there any chance that they are the wrong band for the your frequency?
If you have more than one transmit frequency is there any difference in the reflected power?
Howard

KitN1MCC
Posts: 1874
Joined: Wed Jan 16, 2002 4:00 pm
What radios do you own?: ht1550 XLS,6 MT-1000,

Re: UHF Laird Phanton elite shark fin antenna bad tune

Postby KitN1MCC » Thu Jul 31, 2014 5:00 pm

they are the 430-450 ones and i tried Several i think i am gonna go with the maxrad ones instead


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