I recently installed a Predator 10-K (K-1-22 Competition Plus-BB) - Bad-To-The-Bone, on my pick-up truck. I tuned it using my Dosy TR1000 meter that is installed in the truck and the SWR is 1.3-1 the meter on my Galaxy DX959 is 1.5-1 ( I know CB radio meters are not the best, but use it for quick reference) I recently purchased a MFJ-870 meter just for double checking my Dosy meter. The MJF is reading 3.0-1. Not sure why the big difference.
I disconnected the Dosy TR1000 I have on my base station cb and checked the truck antenna SWR, same reading as the other Dosy meter.
I tried both Dosy TR 1000 meters and the MJF on my base cb and they all read the same 1.1-1
I then tried all three meters on my Jeep which has a Uniden Radio and all three read the same 1.1-1
Not sure why the MJF is reading so different on the truck. I have multiple grounds from frame to body and antenna mount is grounded. All coax is Astatic and in good shape. The antenna is mounted on the rear wall of the truck bed and the coils are about 6" above the cab roof. I know this is not the ideal location but prefer to have it in this position. The antenna that the Predator replaced was in same location and evrything else the same. It also had an SWR of 1.3-1 with the Dosy meter. Not sure whats up with the MJF meter. Any suggestions appreciated. Thanks
I disconnected the Dosy TR1000 I have on my base station cb and checked the truck antenna SWR, same reading as the other Dosy meter.
I tried both Dosy TR 1000 meters and the MJF on my base cb and they all read the same 1.1-1
I then tried all three meters on my Jeep which has a Uniden Radio and all three read the same 1.1-1
Not sure why the MJF is reading so different on the truck. I have multiple grounds from frame to body and antenna mount is grounded. All coax is Astatic and in good shape. The antenna is mounted on the rear wall of the truck bed and the coils are about 6" above the cab roof. I know this is not the ideal location but prefer to have it in this position. The antenna that the Predator replaced was in same location and evrything else the same. It also had an SWR of 1.3-1 with the Dosy meter. Not sure whats up with the MJF meter. Any suggestions appreciated. Thanks