Specifications
HPT135 VHF Modem Specifications
Transmitter Specifications
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A.1.3. Transmitter Specifications
Table A-3 lists the transmitter specifications.
Table A-3. Transmitter Specifications
A.1.4. Receiver Specifications
Table A-4 lists the receiver specifications.
Table A-4. Receiver Specifications
Parameter
Specification
Output Power USA
EU
25 dBm to 45.44 dB m in 1 dB steps (320 mW to 35W)
25 dBm to 41.76 dBm in 1 dB steps (320 mW to 15W)
Output Power Control Accuracy
±1.5 dB (at normal test conditions)
Carrier Frequency Stability
±1.5 ppm initial stability over temp with ±3.0 ppm aging/year
Max. Frequency Error
±1.0 kHz (at normal test conditions)
±1.5 kHz (under extreme test conditions)
Adjacent Channel Power (Conducted)
25/12.5/6.25 kHz CS USA, Canada
EU
Part §90.210 (C, D, E)
Clause 4.2.4 EN 300 113-2 (60 dBc)
Spurious Emission (Conducted)
-36 dBm (9 kHz – 1GHz)
-30 dBm (1GHz – 4 GHz)
Spurious Emission (Radiated)
-36 dBm (9 kHz to 1 GHz)
-30 dBm (1 GHz to 4 GHz)
Parameter
Specification
Noise Figure
4 dB
Receiver Sensitivity DBPSK
BER 1x10-4, 25 kHz CS DQPSK
D8PSK
D16QAM
GMSK
-116 dBm 25kHz / -117 dBm 12.5kHz
-115 dBm 25kHz / -116 dBm 12.5kHz
-110 dBm 25kHz / -111 dBm 12.5kHz
-106 dBm 25kHz / -107 dBm 12.5kHz
-113 dBm 25kHz / -114 dBm 12.5kHz
Dynamic Range
-115 to –15 dBm
Max. Input Signal Level
-10 dBm
Co-channel Rejection
-8 dB for 25 kHz Channel Spacing
-12 dB for 12.5 kHz Channel Spacing
-16 dB for 6.25 kHz Channel Spacing
Adjacent Channel Selectivity
70 dB for 25 kHz Channel Spacing
60 dB for 12.5 kHz Channel Spacing
50 dB for 6.25 kHz Channel Spacing