Review on FireStik FS-4BK 4' (R) II FS Series: Tunable Tip CB Antenna - 900 Watts Black by Leslie Smith

Installed. Turned without a red cap and with a set screw. 1.2 - 1.3 over the entire range. Not bad. I then put on the red plastic end and tested again. Ha, the SWR values were 0.4-0.6 higher over the whole range. So I did everything all over again, adjusted and put the cap on. Got it back to the original 1.2 - 1.3 across the range. This is a real miracle! If you lose the cap, turn the antenna! Note: This antenna is on my Wrst75 Cobra Jeep. On my Dodge 3500 I drive a Stryker A10 and a President McKinley 1.0 around the track.