Operations Manual

DESCRIPTION 2-5
O&M of the MCC-545B PACKET DATA RADIO
12/2000
MCC 545B BLOCK DIAGRAM
FIGURE 2.2
OPTION
GPS
4.192
PROCESSOR
NB ENABLE
ANT
54505304-01
MHZ
BPSK TRANSCEIVER
OSC
GPS
PIC
54506303-01
NOISE BLANKER
PCI BUS
MICRO
CONTROL
CONTROL
TO SYNTH
2ND IF 14.2 MHZ
RS 232
CERAMIC
LOG
ONE
COMP
PROCESSOR
VCXO
2 ND IF TPFILTER AMP
SHOT
4 OPER
CTL
0
LPFLBPF
DATA
QUADGATE
4.2 MHZ
FC=50 MHZ 10.7 MHZ
139-50 MHZ
USART
AUX
A1
LIMITED COSTAS
2
RX DATA
A1BPF1 BPF2
CERAMIC
FIRST IF 10.7 MHZ
USARTFILTER
RX CLK
CERAMICLO1
I&D DATA
RXLOCK
FILTER
FILTER
FILTER
SWITCH
CRYSTAL
COSTAS
CRYSTAL BPSK BASEBAND
16 DB 16 DB
A2 A2 A2
PLL
FLASH
BRATE
DET RF
VCOFr+10.7 MHZ
16 DB
MAINRSSI
AD607
LOCK
MEMORY
DUAL
DC CTRL
PHASE LOCKED
1MEG X 16
PROCESSOR
DET RF
DC CTRL
IF AMP/DETECTOR
LOOP
I/O
68332VCO TCXO
PHASE
DC CTRL
VCO
LOCKED
REF OSC
Ft
LO2 114.9 MHZ
SP
LOOP
FREQ DEV = +/- 2400 HZ
COMPARE
CONN
RAM
12.8/10.0 MHZ
GMSK MODULATION 0 DBM
512K X 16
RX ENABLE
PIC CONTROL
DATA RATE = 9600 BAUD
/2
44 PIN
SYNTH LOCKSYNTH LOCK
BT = .5
IMEG (OPTIONAL)
I II
COMPLEX
(3)
DISCRETE
Q
Q
D/A
PHASE
Q
OUTPUTS
DUAL
MODULATOR
TXKEY
MODULATOR OUT
(2)
RELAY
A1
OUTPUTS
+13 DBM
ERA-5SM
RX INPUT
(4)
OPTO
INPUTSDATA+12BATT
5.7VRX
CO-AX
SYNC
CO-AX
ANALOG INPUTS (6)
TX DATA
TX KEY
V_R
TXLIMITEMI
DET RF
I/O7
A/D
V_F
TEMP
EMI
10 BIT
VF
POWER
11 CHVRVCC3
CONTROL & SWITCH
EMI
+12VBATT
TX CLK
VCC2
EMI
I DATAVCC1
BRATE
9600 BAUD
5.7V
VR
VF
5.7VPR
SWITCH DSP
LPF
.020W
REGULATOR
2W
100W
DIR
20W
T/R
.1W
G=7DB G=13DB G=10DBG=10DB
FC = 60 MHZ
COUPLER
SWITCH
PROCESSOR
VHB121-12T
54505305-01
19.6608 MHZ
Q DATA
VLB1-12
FINAL POWER AMP 54505306-01
FRONT END PA & POWER CONTROL
VLB100-12 MRF 455
CLK
COUNTER
F1/16
F1
CO-AX
+12 VOLT POWER
12 V BATT
PROCESSOR RUN (ON) LED (FLASH)
LED
TX POWER OK = AMBER LED VSWR = RED LED
LED
ANTENNA BNC