Tait International Limited TBCK4B Manual Do Utilizador

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DRAFT 4 
TB9400 Installation and Operation Manual
Description
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© Tait Electronics Limited September 2011
1.4
Frequency Bands and Sub-bands
The first release of the 
base station
 operates only on K band. Later releases 
will support operation on other frequency bands.
1.5
Applications
The TB9400 is designed for operation in a TaitNet P25 trunked radio 
network. It can operate as a single base station or as part of a channel group 
or simulcast channel group, and as a traffic channel or control channel. 
In a trunked simulcast network, the transmitters in the channel group are 
synchronized and transmit simultaneously on the same frequency. Each 
transmitter needs a highly accurate 1 PPS pulse and an external frequency 
reference, so that it can time transmissions with the required accuracy. We 
also recommend using an NTP server at each site, as this will ensure a 
common timestamp in logs across all units in the system.
For more information, refer to the TaitNet P25 System Manual.
Frequency 
Identification
Frequency Band and Sub-band
K band
K4 = 762 MHz to 870 MHz
a
a. The actual frequency coverage in this band is:
Transmit: 762 MHz to 776 MHz, and 850 MHz to 870 MHz
 
Receive: 792 MHz to 824 MHz