MITSUBISHI ELECTRONICS AMERICA, INC.
ST200 Series Technical Support Manual
15
January 2000
In most cases, the customer will prefer the external speaker for dispatch and hands-free
operation. To activate hands-free mode, the handset must be connected to the TU and securely
latched into the handset cradle. The handset cradle contains a magnet that deactivates the
handset speaker and activates the external speaker when connected to the Junction Box.
4.7.7
OmniQuest
®
Fixed Dish Antenna
OmniQuest
®
is capable of being operated with an external Fixed Dish Antenna (OQFAU50)
connected to the RFU through the external antenna port (located on the back of the OmniQuest
®
base unit). The Fixed Dish Antenna is 18” in diameter and comes with mounting hardware and
50 feet of cable (LMR240). A 100’ cable may also be used and is commercially available. The
cable type needed is LMR400 and requires SMA straight connectors. The OQFAU50 is fully
weatherproof and “marinized” for use in harsh or salt water environments. For temporary fixed-
site applications, use of a tripod is desirable, however, the OQFAU50’s mounting bracket will
also accommodate a 2” diameter mounting pole.
4.8 Basic Handset
The standard handset (SZ100A) operates as a control panel for dialing and storing phone
numbers and accessing built-in functions. The handset has a two line, seven character liquid
crystal display (LCD) and a 23 button keypad (illuminated). The keypad control panel has a
standard 12 button alpha-numeric telephone keypad (most with multiple functions), 3 speed
External antenna
(OQFAU) shown with
100’ cable (Type
LMR400) and
optional tripod.
Weight of antenna
and mounting
hardware is
less than 5 lbs.
See Appendix C for
detailed installation
instructions.
18”
