Inline SWR for Mobile

This is the place to post your general tips or ask questions about your installation, whether it's for mobile or base stations.
Post Reply
User avatar
Mbertwell
Donor
Donor
Posts: 1
Joined: December 28th, 2024, 1:01 pm
Handle: Copperhead
Real Name: Michael
Antenna: Stryker Sr-a 10
Radio: Uniden Pc78ltx
Contact:

Inline SWR for Mobile

#412379

Post by Mbertwell »

Would mounting a permanent SWR meter in my vehicle be a good idea, if so which one? Does it go between the antenna and the amp or the amp and the radio (I'm assuming the second one)?
User avatar
Windwalker
Verified
Moderator
Moderator
Posts: 442
Joined: February 19th, 2011, 9:03 pm
Handle: Windwalker
Real Name: Clifford Stewart
Call Sign: KD8QHS
Antenna: K-40// Hustler MagMnt
Radio: Cherida S890
Contact:

Re: Inline SWR for Mobile

#412380

Post by Windwalker »

Im sure you can search herre at CBRT and find lots of info on this topic.
The 11 meter band works well using 3 foot jumper sections. I would put a 3 foot between the radio and amplifier and put the swr meter between the amp and antenna.
This is just a quick reply but search and you will find more info here on CBRT !

WW
User avatar
KOA4705
Duckplucker
Duckplucker
Posts: 119
Joined: December 31st, 2009, 5:13 pm
Handle: 555
Real Name: Joe
Radio: tram titan
Contact:

Re: Inline SWR for Mobile

#412407

Post by KOA4705 »

"The 11 meter band works well using 3 foot jumper sections" What the reason for this?
User avatar
De_Wildfire
Donor
Donor
Posts: 953
Joined: June 14th, 2009, 7:46 pm
Handle: De_Wildfire
Real Name: Greg
Antenna: Imax 2000. Hex Beam, G5RV dipole, Jpole(UHF/VHF) Austin Suburban Tri Band (UHF/VHF)
Radio: Washington, Tram D201, Tram D64, Robyn 520D, Cobra 139XLR, Elecraft K3S, Kenwood 590S, Yaesu FTM 400DR, Alinco DR-235, ADI-146
Contact:

Re: Inline SWR for Mobile

#412440

Post by De_Wildfire »

A permanent SWR meter would be a very good idea between the antenna and the amp. In the past I tested my SWR;'s in the mobile with an analyzer/meter. It read 1.1. Everyone was complaining that I was breaking up on the move. When the antenna moved around, the SWR's went way up. It was a bad lip mount. When I hooked the meter up when I was parked, it was fine but when I flicked the antenna, it jumped way up until it settled down. You need the SWR meter in line at all times in case something goes wrong to warn you to stop transmitting especially with an amp in line.
User avatar
MDYoungblood
Verified
Site Admin
Site Admin
Posts: 10,817
Joined: June 12th, 2010, 8:05 pm
Handle: MDYoungblood
Real Name: Gregory
Antenna: HyGain AV-6160
Radio: Icom IC-746 (non pro)
Contact:

Re: Inline SWR for Mobile

#412456

Post by MDYoungblood »

I like the small digital meters they have out now.

3's

Greg
"321, West Manchester Township, PA"

Official Moderator - CBRT Complaint Department
Post Reply