[1000mp] field users??

[NOEL POULIN]

Hello to all
I just got my new fields radios .
I have one question....
Can somebody tell me why the display indicates SUB BUSY when I transmit with the main VFO....I am not using the sub at all....and in TX position sometimes the display says SUB BUSy..... of course all is normal I see the TRANSMIT.Light etc.....
But why do I see the SUB busy light when I am not using it
What Am I missing .....
The fileds (2 of them) are new....
Thanks
NOEL