Specifications

MDS 05-3438A01, Rev. E MDS 4790/9790 Series I/O Guide 73

Set Time This screen is used to set or display the time set in the radio. The accuracy of the

date and time are important, because event codes are “stamped” with the date and

time.

To change the time, press ENTER, then use the left/right arrow buttons to select

the hour, minute, second, or AM/PM. Then use the up/down arrow buttons to

increase or decrease the digit, or toggle between AM and PM. Repeat for other

characters if necessary. Press ENTER again to make the change.

Set Date This screen is used to set or display the date set in the radio. The accuracy of the

date and time are important because event codes are “stamped” with the date and

time.

To change the date, press ENTER, then use the left/right arrow buttons to select

the month, day, or year. Then use the up/down arrow buttons to increase or

decrease the day or year, or set the month. Repeat for other characters if

necessary. Press ENTER again to make the change.

GROUP 3—DIAGNOSTICS

Operating Status

This screen displays three key operating conditions of the radio; TX key status,

Received Signal Strength Indication (RSSI), and Signal-to-Noise (S/N) ratio. Unlike

other screens, the information shown on the Operating Status screen is preserved

across power outages and radio switchovers. This screen has no timeout and will

remain displayed until changed by an operator.

Active Radio

Status

This screen is used to display alarm conditions, if any. A list of major and minor

alarm events can be found in Table 12 on Page 53.

If alarms are indicated, press ENTER to display the ﬁrst alarm. To scroll through

the list of alarms, press the right or down arrow button. Press ESCAPE to

return to the Active Radio Status screen.

Receive Signal

Strength

This screen displays the received signal strength in dBm.

In a typical master station conﬁguration, the received signal strength is read from

each of the remote radios that transmit to the master station in turn.

TIME [hh:mm:ss] command,

Page 54

DATE [mmm dd yyyy]

command, Page 41

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STAT command, Page 52

RSSI, RSSI! command,

Page 48