Appendix A Technical Specifications
Crescendo VHF Half-Duplex User Manual
Page 54 of 74
Appendix A Technical Specifications
A.1 Type Approvals
Australia/ New Zealand
AS 4295 -1995
Australian Supplier ID: N161
FCC (planned)
CFR 47 Part 15 and Part 90
FCC ID P5MRFI150H
Industry Canada (planned) RSS-GEN, RSS-102, RSS-119
IC: XXXXXX-RFI150H
ETSI (planned)
ETS 300 113
Table 16: Type approvals
A.2 Radio Modem Specifications
RF Switching Bandwidth
148 – 174 MHz
RF Channel Bandwidth
Model specific:
12.5kHz
25kHz
RF Frequency Raster
Selectable: 25kHz, 12.5kHz, 6.25kHz
RF Output
Selectable Carrier Power (@ 13.8VDC nominal):
0, +20, +27, +30, +36, +37dBm
Continuous duty-cycle rated
Receiver Sensitivity
-104dBm at a BER of 10
-6
(9600 bps)
-102dBm at a BER of 10
-6
(19200 bps)
Modulation
Nyquist-shaped 4-level FSK.
RRC filter coefficient 0.2
Modulation deviation (max):
4.7kHz (25kHz channel)
2.35kHz (12.5kHz channel)
Baseband Rate
Model specific:
19.2Kbit/s (25kHz channel)
9.6Kbit/s (12.5kHz channel)
Serial Ports
Dual asynchronous full duplex RS-232
Data Rates: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600,
115200
Data Bits: 7 or 8
Parity: None, Odd, or Even
Stop Bits: 1 or 2
Flow Control (Main Port only): None, Hardware (RTS/CTS)