Tait T855 - RF Section

M850-00 T856/857 General Information C1.9
Copyright TEL 31/09/98
Dimensions:
Height .. 183mm
Width .. 60mm
Length .. 320mm
Weight .. 2.1kg
Time-Out Timer (optional) .. 0 to 5 minutes adjustable in 10 second
steps
Tail Timer .. 0 to 5 seconds adjustable in 100ms
steps
Transmit Key Time .. <30ms
Transmit Lockout Timer .. 0 to 1 minute adjustable in 10 second
steps
1.2.3 RF Section
Frequency Range .. 400-520MHz (refer to Section 1.4 and
Section 1.5)
Modulation Type .. FM
Frequency Increment .. 5 or 6.25kHz
Switching Range .. 8MHz (i.e. ±4MHz from the centre
frequency)
Load Impedance .. 50 ohms
Frequency Stability .. ±1ppm, -20°C to +60°C
(see also Section 1.4 and Section 1.5)
Adjacent Channel Power (full deviation):
Wide Bandwidth (WB) .. -75dBc
(±25kHz/15kHz B/W)
Mid Bandwidth (MB) .. -70dBc
(±20kHz/12kHz B/W)
Narrow Bandwidth (NB) .. -65dBc
(±12.5kHz/7.5kHz B/W)
(Transmitter switching must comply with ETS 300 113)
Transmitter Side Band Noise:
(no modulation, 15kHz bandwidth)
At ±25kHz .. -95dBc
At ±1MHz .. -105dBc