Tait TB9300 - Miscellaneous; Channel Details; Duplexer Attenuation Requirements; Operating Temperature Range

TB9300 Specifications Manual Base Station Specifications 43
© Tait International Limited August 2022
1.9 Miscellaneous
1.9.1 Channel Details
1.9.2 Duplexer Attenuation Requirements
The following graph shows the attenuation requirements for duplexers
used with the base station. The dotted plot represents the attenuation
required in the Rx path at the Tx frequency, while the continuous plot
shows the attenuation required in the Tx path at the Rx frequency.
A 100
W transmitter is assumed. The quoted attenuation will ensure no
more than 1 dB of receiver desensitization (from the specified sensitivity),
with a 5
dB margin built in.
1.9.3 Operating Temperature Range
Number of channels 4000
Channel change time 300 ms
60
65
70
75
0 5 10 15 20
Rx path attenuation
at Tx frequency
Tx path attenuation
at Rx frequency
dB attenuation
offset frequency in MHz
Operating temperature range -30 °C to +60 °C (-22 °F to + 140 °F) ambient
temperature
a
a. Ambient temperature is defined as the temperature of the air at the intake to the cooling fans.