
TB9300 Specifications Manual
Base Station Specifications
37
© Tait International Limited August 2022
1.7.2
Channel Group Size
The table below defines vote contributors and channel group size for each
channel type:
‘Channel group size’ is the number of receivers and transceivers in a
channel group.
‘Vote contributors’ are the number of active receivers that will contribute
to a voted output.
In systems with a mixture of Series 1 and Series 2 base stations, the
channel group sizes in the above table will depend on whether the chan-
nel group master is a Series 1 or Series 2 base station.
1.7.3
Digital Air Interface
Series 1
Series 2
Channel Type
Vote Contributors
Channel Group Size
Channel Group Size
All DMR (trunked and
conventional)
all base stations
10
28
Vocoder
AMBE+2
Digital Protocol
DMR ETSI-TS102 361 -1, -2, -3, -4