Motorola DIMETRA MTS 2, Installation, Configuration And Basic Service Manual

Page: 421 / 517

MTS 2 and MTS 4 Installation, Con
fi
guration and Basic Service Manual Receiver
Table 14-8 Transmit Specifications – TEDS (Continued)
Transmitter Specification Value or Range
Tx Conducted Emission (25kHz TEDS) 100 - 250 kHz
250 - 500 kHz
500 - 2500 kHz
2500 - frb kHz
>frb -70 dBc
-80 dBc
-80 dBc
-90 dBc
-95 dBc
Tx Conducted Emission (50kHz TEDS) 112.5 - 262.5 kHz
262.5 - 500 kHz
500 - frb kHz
>frb -70 dBc
-75 dBc
-80 dBc
-95 dBc
Intermodulation Attenuation 70 dB
RF Input Impedance 50 Ω (nom.)
Receiver
The receiver speci
fi
cations are listed in Table 14-9 and Table 14-10 .
In Table 14-9 and Table 14-10 , all speci
fi
cations are through the RF Distribution System, unless otherwise stated.
Table 14-9 Receiver Specifications – TETRA
Receiver Specification Value or Range
Sensitivity (normal conditions, unprotected T1, static, 4% BER):
population mean:
spec limit:
-120.0 dBm (-119.5
dBm 800 MHz)
-117.5 dBm
Sensitivity (normal conditions, faded, TU50, 4% BER):
population mean :
spec limit:
-113.5 dBm (-113.5
dBm 800 MHz)
-111.0 dBm
Degradation (extreme conditions, static and faded) 3 dB
Nominal Error Rate (unprotected T1):
Static, -85 to -40 dBm:
Static -40 to -20 dBm
TU50, -84 to -40 dBm
<0.01%
<0.1%
<0.4%
Maximum On-channel Desired Power Level -20 dBm
Co-channel Interference (19 dB C/I, faded, unprotected T1): TU50 2.0%
Adjacent Channel Interference (faded, unprotected T1, normal conditions, 45
dB C/I (40 dB C/I for 800 MHz), at -103 dBm): TU50 2.0%
Adjacent Channel Interference (faded, unprotected T1, extreme conditions, 35
dB C/I (30 dB C/I for 800 MHz)), at -97 dBm): TU50 2.0%
6802800U74-N September 2009
14-9