[1000mp] field swr meter accurate???/

[NOEL POULIN]

Hello 
I am just trying a new MARK V field here, and I noticed that the swr between the amplifier and the mark v is high....compare with another known swr meter (birds) .
Did somebody notice the same thing with the MARK V field swr meter....
Is it accurate ....
Is there a way to adjust this meter if it is not precise compare with a well calibrated swr meter????
I was using a Kenwood before this MARK V Filed, and the swr between the radio and the amp, was not that high....
Thanks
NOEL