Service manual

OPERATION
3-2
April 2001
Part No. 001-9800-203
Table 3-1 Low and High Tier Features
Feature Low Tier High Tier
General Features
Up to 16 system/group combinations programmable X
Up to approximately 40 16-group systems or 100 1-group systems programmable X
Up to 126 different channels programmable X
Up to 378 different channels programmable X
Each system programmable for LTR or conventional operation X X
1.5-digit LED display X
Large 2-line x 8-character liquid crystal display (LCD) with backlight X
Unique 8-character group alpha tags X
Numeric system/group display mode X
Alpha tag system/group display mode and display mode user selectable X
System Scan X X
Group Scan X
User programmable scan list(s) X X
Bank Select (up to 16 banks of systems programmable) X
Two programmable option switches (AUX1/AUX2) X
All five option switches programmable X
Menu mode X
Emergency switch X
Stealth mode to disable LED, tones, and backlight X
Proceed (clear-to-talk) tone X X
Time-out timer with penalty timer X X
Call indicator X X
Receive-only channels X X
Horn alert with fixed on-off times and cycles X
Horn alert with programmable on-off times and cycles X
Companding (optional) X X
Encryption (optional) X X
Two accessory option slots X X
One of two power output levels programmable for each system X
One of five power output levels programmable for each system X
Limited I/O line programmability; external serial transceiver control not available X
Complete I/O line programmability; external serial transceiver control standard X
LTR Features
Busy queuing (telephone calls only) X X
System search (telephone calls only) X X
Transpond X X
Transmit inhibit X X
Receive priority ID codes X X
Conventional Features
Each group selects a radio channel X X
Each channel programmable for tone (CTCSS) or digital (CDCSS) Call Guard, car-
rier, or “ANDed” external squelch control
XX
First and second priority channel sampling with Call Guard squelch detect X X
User-adjustable squelch level X X
Busy indicator X
Transmit disable on busy X X
Monitor mode X X
Repeater talk-around X X