Good day,

I have a Kenwood TS-480HT with a Wolfriver coil and a stainless steel whip in my car.

I find that on 40 meters I can get the SWR at around 1.4 (using an MFJ 269) at 7.1000 MHz. But the SWR goes high (2.5 to 3.0) very quickly if I go closer to 7.0000 and even higher if I go closer to 7.2000 (past 6.0).

This also happens on 80 meters.

Is there a way I can increase the SWR bandwidth?