User's Manual

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
CFR 47 Part 15 and Part 90
FCC ID P5MRFI150H
Industry Canada
RSS-GEN, RSS-102, RSS-119
IC: 10592A-RFI150H
ETSI (Planned)
ETS 300 113
Table 17: Type approvals
A.2 Radio Modem Specifications
RF Switching Bandwidth
148 – 174 MHz
RF Channel Width
Model specific:
 Refer to Table 1 on page 6
RF Frequency Raster
Selectable: Down to 1.25 kHz depending on type approval
RF Output
Selectable Carrier Power (@ 13.8 VDC nominal):
 0, +20, +27, +30, +36, +37 dBm
Continuous duty-cycle rated
Receiver Sensitivity
-104 dBm at a BER of 10
-6
(9600 bps)
-102 dBm at a BER of 10
-6
(19200 bps)
Modulation
Nyquist-shaped 4-level FSK.
RRC filter coefficient 0.2
Modulation deviation (max):
 4.7 kHz (wideband)
 2.35 kHz (narrowband)
Baseband Rate
Model specific:
 19.2 Kbit/s (wideband)
 9.6 Kbit/s (narrowband)
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)