User's Manual

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Appendix A Technical Specifications

Crescendo UHF Half-Duplex User Manual Page 56 of 78

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: P5MRFI450H

Industry Canada

RSS-GEN, RSS-102, RSS-119

IC: 10592A-RFI450H

ETSI (planned)

ETS 300 113

Table 18: Type approvals

A.2 Radio Modem Specifications

RF Operating Bandwidth

390 MHz – 500 MHz

RF Switching Bandwidth

Appoximately 20 MHz (model dependent, 16 selectable channel pairs)

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 (@ 12.5VDC nominal):

 0, +20, +27, +30, +36, +37 dBm

Continuous duty-cycle rated

Receiver Sensitivity

Approximately -108 dBm (model dependent, BER of 10

-6

, 9600 bps)

Approximately -106 dBm (model dependent, BER of 10

-6

, 19200 bps)

Modulation

Nyquist-shaped 4-level FSK.

RRC filter coefficient 0.2

Modulation deviation (max):

 3.8 kHz (wideband)

 1.9 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)