Index-5
Specifications, 6-3
Processor board
Circuit description, 9-1
ALE switch, 9-5
Analog converter system, 9-5
Audio buffers
, 9-5
BITE description
, 9-6
BITE test descriptions, 9-7
operation, 9-6
Block diagram, 9-2
Clock oscillator circuit, 9-3
Control bus, 9-5
Control bus outputs, 9-4
Control outputs, 9-4
EEPROM memory, 9-4
EPROM program storage, 9-3
Input demultiplexer, 9-4
Memory backup circuit, 9-3
Memory dump feature, 9-6
Processor, 9-2
Processor controller, 9-3
Program operation, 9-5
RAM program storage, 9-3
RS-232 I/O circuit, 9-3
Wake-up control, 9-4
Component locations, schematics, and
parts list
, 9-13
Component locations diagram
(738218), 9-14
Parts list (009-10702)
, 9-17
Schematic diagram (994183)
, 9-15
Connector pin assignments
J1 connector
, 9-9
J2 connector, 9-9
J3 connector
, 9-10
J4 connector
, 9-11
J5 connector, 9-11
Specifications
, 9-8
R
Receive path
, 2-3
S
Scan group
, 1-4
see also ALE call setup screen, GROUP
Specifications, 1-2
Squelch, 1-4
see also Radio configuration screen,
Squelch
Synthesizer board
Circuit description
, 8-1
BFO output
, 8-3
Block diagram, 8-1
Direct digital synthesizer (DDS), 8-2
First LO, 8-3
PLL/Tracking filter, 8-2
Reference oscillator, 8-2
Second LO, 8-3
Component locations, schematic and parts
list, 8-5
Component locations diagram
(738025), 8-6
Parts list (009-00606), 8-19
Schematic diagrams (994073), 8-7
Connector pin assignments
J1 connector, 8-4
J2 connector, 8-5
J3 connector, 8-5
System overview
DC power, 2-5
DDS synthesizer, 2-2
Frequency conversion, 2-1
Frequency conversion plan diagram,
2-2
PRC1099A system block diagram, 2-14
PRC1099A wiring diagram
, 2-15
Processor control
, 2-2
Radio menu descriptions
, 2-11
Receive path
1650 kHz IF board, 2-3
Antenna tuner board
, 2-3
Audio outputs
, 2-4
Audio/Filter board-1, 2-3
Audio/Filter board-2
, 2-3
Mixer board
, 2-3
Transmit path
1650 kHz IF board, 2-4
Audio/Filter board-2, 2-5
Audio/Filter-1
, 2-4
Automatic Antenna Tuner
, 2-5
Mixer board, 2-4
Power Amplifier board
, 2-5