JVC VN-T216U Instructions Manual page 31

Bit Rate
GOP
Profile
256K
512K
1M
2M
3M
4M
6M
8M
1-30
Baseline
High Profile
It's optional only when constant bit
rate is chosen. Select the desired bit
rate including 256K, 512K, 1M, 2M,
3M, 4M, 6M and 8M b/s.
When resolution is not 1080P or
720P, 4M is the maximum.
Select the GOP (Group of pictures)
number from 1 to 30.If the number
is bigger, recovery of the lost frames
will be more difficult; If the number is
smaller, it will increase the bite rate
obviously and aggravate the network
loading.
The default value is 30. GOP will be
differed by fps setting.
The maximum GOP is differed by Bit
Rate setting.
Selectable (H.264 only)
30