Start-Up And Operation; Initial Startup; Normal Indications; Maximizing Rssi - GE MDS 4790M Installation And Operation Manual

MDS 05-3628A01, Rev. B

5.0 START-UP AND OPERATION

The radio is designed for continuous, unattended operation. Under normal
conditions, the only time operator intervention is required is to power the unit
up or down, or to change an operating parameter. This section explains the use
of the radio's indicators and provides steps for initial startup of the equipment.

5.1 Initial Startup

NOTE:
The radio is normally continuously keyed, and transmits when the
power is switched on. Ensure there is a suitable load on the antenna
connector before switching the power on.
Operation of the radio can be started by simply connecting primary power to
the unit and setting the rear panel

Normal Indications

When power is first applied, the following events occur in a normally working unit:
• All indicators light briefly and a beep is emitted
• The front panel display shows the start-up screen, similar to Figure 19
• The LED for the selected transceiver board lights. (In a
ACTIVE
master station configured for redundant operation, the
also lights for the stand-by unit.)

Maximizing RSSI

Since the master station almost always uses an omni-directional antenna,
maximizing signal strength is done at the remote sites where directional
antennas are typically used. An RSSI greater than -90 dBm is desirable.

5.2 Front Panel Indicators

Refer to Figure 17 and the following text for an explanation of the front panel
indicators. The control buttons are described in Section 6.4, Configuration and
Programming using the Front Panel, beginning on page 44.
Figure 17. Front Panel Controls and Indicators
MDS 4790M (MPT 1411) I/O Guide
switch to .
POWER
ON
Invisible place holder
LED
STBY
21