Comanche Scott
Expedition Leader
Wanted to check SWR, and output after installing the tire carrier with basket (a lot of metal near the antenna). Had a really weird issue that I've not seen before.
Was able to tune antenna to about 1.3 SWR, but as soon as I put the antenna tip cap back on it would jump up to almost 2.0.
Tried with the cap barely on, and then with it pushed down. Shortened the cap about 1/4", but made no difference.
Used some Plasti-Dip over the tip adjustment, which raised the SWR to 1.5, but better than the cap.
Antenna is a 2' Firestick-II with adjustable tip.
I'm thinking there is something conductive on the inside surface of the cap. I've got a megohmmeter I can check it with. Just thought it was weird, as when new, the cap made no significant ,difference to SWR.
The 4' Firefly made no difference cap on or off. It's a smaller diameter cap, or I'd have tried it on the Firestick.
Any body ever seen this before?
I really like this antenna when on the trail, as it has great output, and sits about even with the top of the Jeep.
Was able to tune antenna to about 1.3 SWR, but as soon as I put the antenna tip cap back on it would jump up to almost 2.0.
Tried with the cap barely on, and then with it pushed down. Shortened the cap about 1/4", but made no difference.
Used some Plasti-Dip over the tip adjustment, which raised the SWR to 1.5, but better than the cap.
Antenna is a 2' Firestick-II with adjustable tip.
I'm thinking there is something conductive on the inside surface of the cap. I've got a megohmmeter I can check it with. Just thought it was weird, as when new, the cap made no significant ,difference to SWR.
The 4' Firefly made no difference cap on or off. It's a smaller diameter cap, or I'd have tried it on the Firestick.
Any body ever seen this before?
I really like this antenna when on the trail, as it has great output, and sits about even with the top of the Jeep.