S900 series commercial DMR digital car station

S900 series could be set to work under a group of repeaters , each repeater could provide 2 logical channels. When S900 was set in Easy Trunking mode , it will listen to all the logical channels preset by an advance scan algorithm , or if PTT pressed , it will find a free logical channel to transmit. In order to get a short delay on TX/ RX , it is better to use no more than 4 repeaters , i .e . 8 logical channels . There is no special requirement or settings for the repeaters used.
Roaming
S900 series could be used under multi-sites which could cover a large range . The radio will find a best or better site preset to use automatically, this feature is useful for IPSC application .
TDMA Direct Mode
S900 series could support two kings of TDMA Direct Mode:
1 ) Free mode , 2 )Alignment mode
Free Mode:S900 will detect the synchronization signaling and TX freely, this could ensure 2-slot communication anytime . Alignment Mode: S900 working in this mode , will need a strict synchronization signaling before realizing a real 2-slot direct Mode .
Transmit Interrupt
S900 series in TX state could be stopped by a Transmit Interrupt command from another terminal or a dispatch . This feature is useful when an urgent call needing a free logical channel to use .
Mixed Channel
S900 series working in Mixed Channel , could recognize the incoming analog carrier or digital carrier automatically and reply in the same way, or a default analog/digital way to set up a
new call .
Voice Record
S900 series could record the TX/ RX voice about 2 hours .
Voice Status
S900 series could send a voice status to for the RX radios to playback the corresponding voice message pre- record.
Wide Band
Allows the radio to be programmed in a wide frequency range. VHF:136- 174MHz and UHF:400-470MHz .