3-8 PROGRAMMING AND DIAGNOSTICS MDS 05-2415A01, Rev. A
PROGRAMMING OWNER’S INFORMATION
The information accessible by the OWM and OWN commands can be programmed by the user
to allow information unique to the radio transceiver or its location to be stored in the
EEPROM. Normally, this field is left blank on units as shipped from MDS.
To program these fields, proceed according to the following directions:
1. Open the diagnostics channel.
2. Type in
POWN +
SPACE
, followed by the owners’ name, etc. This is limited to a
maximum of 20 characters. When the desired information has been entered, press
ENTER
. The display will read INFORMATION PROGRAMMED.
3. Type POWM +
SPACE
, followed by the desired message, not to exceed the maximum
of 27 characters. When the desired information has been entered, press
ENTER
. The
display will read INFORMATION PROGRAMMED.
4. Review the information by typing
OWN or OWM to verify that the desired message has
been entered. If either message has an error in it, the information will have to be re-
entered using the above steps.
5. Close the diagnostics channel.
PASSWORD PROTECTION
If password protection of programmed information (frequency, owner’s name and message,
etc.) is used, the PASS command followed by the correct four-character password must be
entered before the transceiver programming can be changed. Without the proper password,
the programmed information and diagnostic data can only be reviewed, and no access to the
programming commands is possible.
For more information on password protection, contact the MDS Systems Engineering.
DIAGNOSTIC EVALUATION
Using the diagnostic commands, a technician can read important voltages and levels with the
HHT. These values are updated once every second, allowing adjustment of the levels without
the need for invoking the command each time a control is moved. Below is a list of the
commands, with the display to be expected after typing the command followed by an
ENTER
keystroke.
SV ------------- Supply voltage supplied to transceiver.
Display will read SUPPLY VOLTAGE = xx.x VOLTS.
VR ------------- Main regulator voltage.
Display will read +8V = xx.x VOLTS.
RSSI ---------- Received signal strength at ANTENNA connector.
Display will read RSSI = –xxx DBM.
LV ------------- PLL VCO lock voltage.
Display will read LOCK VOLTAGE = xx.x VOLTS IL.
NOTE
The
IL is an in-lock indicator; if the PLL is
out-of-lock, the display will show OL.
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