I recently tried to instal a president walker on my car (a land rover defender 110).
I svewed a steel plate on the soare tire holder that is mounted on the rear door. On that plate I installed a president antenna that was originaly on a magnetic pod on a sirio base.
The antenna is linked to the radio with a 5mm cable (4 meters long).
When I checked the SWR it was 5 ! And all I have done on the antenna lenth didn't change anything.
Does anybody know what is happening ?