User's Manual

2-1
SECTION 2. OPERATION
2-1. GENERAL INFORMATION
This section provides information for operating the URC-200 (V2) Transceiver. It includes a
functional description
of all operating controls, indicators, and connectors and procedures for set-
up and operation.
NOTE
Lithium Battery Pre-Conditioning
When using BA-5590/U lithium batteries, General Dynamics C4
Systems recommends that the user consult MIL-B-49430 (ER),
"MIL-SPEC, Batteries, non-rechargeable, Lithium Sulfur Dioxide",
and MIL-B-49430/3D (ER) "MIL-SPEC, Batteries, non-
rechargeable, Lithium Sulfur Dioxide BA-5590/U." Particular
attention should be paid to the paragraphs relating to voltage
delay of the BA-5590/U.
It is recommended that the batteries be changed in pairs.
New, unconditioned, lithium batteries may not be able to deliver
the current required to allow the transceiver to transmit in high
power. To condition the lithium batteries the user can, after
installing the new batteries, set the transceiver to low power and
key the transmitter for 20 to 30 seconds, then set the transceiver
to medium power and again key the transmitter for 20 to 30
seconds, the batteries should now be conditioned and capable of
supplying sufficient current to allow the transceiver to transmit in
the high power mode.
2-2. CONTROLS, INDICATORS AND CONNECTORS
The URC-200 (V2) uses a microprocessor to control and display all operating functions. A
key-pad with 12 key switches is used with a Li
quid Crystal Display (LCD) to select frequencies
and operating modes for each of the 10 preset channels and to store each channel's operating
parameters. Separate volume and squelch controls are provided to adjust the handset and
loudspeaker audio level and the receiver squelch threshold. The controls, indicators and
connectors shown in Figure 2-1 are explained in Table 2-1. The display and key-pad functions
are shown and explained in Figure 2-2.