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Products - MCC 545B Packet Data Radio

Specifications


I/O Capability:
Inputs:
6 analogs
0-5V
4-20 ma (with external 250 ohms resistor)
10 bit accuracy resolution
4 ON/OFF, optically isolated
1 GPS, NMEA compatible
3 RS-232 Ports
Outputs:
2 Form C SPD T Relays


MCC-545B Packet Data Radio Detailed Specifications

General Specifications
Characteristic Specification
Dimensions 10.6"L X 4.0"W X 2.42"H
Weight 3.5lbs
Temperature Range -30° to 60° C (-22° to 140° F)
Power Requirements 12 VDC Nominal (10-14 VDC)
Standby: 100 ma (Continuous)
Transmit: 20 Amps Nominal (100 msec)

Receiver Specifications
Characteristic Specification
Frequency: 37-50 MHz .0005%
Synthesized 10KHz steps
Modulation:
Type -
Rate -
Format -
BPSK
4 kbps
NRZ
Noise Figure < 7 dB minimum
Sensitivity: Bit Error Rate < 10-3 at 4 kbps -120 dBm
IF Bandwidth (3/80 dB) 13/40 KHz typical
RF Bandwidth (3 dB) 13 MHz typical
Signal Acquisition Time < 5 msec
3rd Order Intercept Point >- 4 dBm
Image Response Attenuation > 70 dB minimum
Spurious Response Attenuation > 70 dB minimum
SP Threshold Adjustable from –115 to –106 dBm
Triggered by DET RF and Demodulator Lock
Noise Blanker > 20 dB Reduction in Impulse Noise
I/O MCC Standard (Refer to Section 3.2)

Transmitter Specifications
Characteristic Specification
Frequency 37-50 MHz .0005% Synthesized 10KHz steps
RF Power Output > 100 Watts at 12 VDC Input
Load VSWR < 2:1 Rated Power
Harmonic Levels 70 dB below Un-modulated Carrier
Modulation:
Type -
Rate -
Format -
BPSK
4 kbps
Diff
Spurious > 70 dB below Un-modulated 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

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:
SW1 -
System Reset, Momentary
Jumper:
JP2 -
JP3 -
JP4 -
Modulation Select (In for BPSK)
DSP Clock Select (pins 1-2)
Mod Filter Select (In for BT=0.5, Out for BT=1.0)