Instruction Manual

DESCRIPTION 2-16
MCC-545C PACKET DATA RADIO
12/2000
MCC-545C TRANSMITTER SPECIFICATIONS
CHARACTERISTIC SPECIFICATION
Frequency 37-50 MHz .0005% Synthesized 10KHz
steps
RF Power Output > 100 Watts at 12 V
DC
Input
Load VSWR < 2:1 Rated Power
Harmonic Levels 70 db below Unmodulated Carrier
Modulation: Type
Rate
Format
GMSK
9.6 kbps and 19.2 kbps
NRZ
Spurious > 70 db below Unmodulated Carrier
Transmit Modulation Spectrum 10 KHz offset – 40 db
25 KHz offset – 70 db
Tx Duty Cycle 16% Max without shutting down transmitter
20% will shut down the transmitter
T/R Switch Solid-State
Switching Time < 100 microseconds
I/O MCC Standard (Refer to Section 3.2)
High VSWR Protection Withstands Infinite VSWR
TABLE 2.3
MCC-545C MICROPROCESSOR SPECIFICATIONS
CHARACTERISTIC SPECIFICATION
Main Processor Motorola MC68332FC 32-bit Embedded
Controller
Memory: Program Storage
Data Storage
Parameter Storage
512K x 16 non-volatile Flash memory
1024K x 8 static RAM (optional 2048K x 8)
512K x 16 non-volatile Flash memory
Switches: S1 System Reset, Momentary
Jumper: JP2
JP3
JP4
Modulation Select (In for GMSK, Out for
BPSK)
DSP Clock Select (pins 1-2)
Mod Filter Select (In for BT=0.5, Out for
BT=1.0)
TABLE 2.4