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
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