Microwave Data Systems MDS 4310 Installation, Operation & Field Maintenance page 52

• Time-Out Timer length = 30 sec
• Soft Carrier Dekey = 0 ms
• Squelch Tail Eliminator = On
The transceiver is to be programmed to operate in a system requiring the following
parameters:
• Transmit frequency = 428.8375 MHz
• Receive frequency = 438.8375 MHz
• Time-Out Timer length = 94 sec
• Soft Carrier Dekey = 4 ms
• Squelch Tail Eliminator = off
• Loopback Code = 1234
The list of steps and commands below will program the MDS 4310 with the required values.
1. Connect the HHT to the transceiver as previously outlined, and open the diagnostics
channel if necessary.
2. Verify the current frequencies by typing
TX FRQ = 428.01250
RX FRQ = 438.01250
3. Program the new transmit frequency by typing
+
428.83750
SHIFT
The display will read
correctly and accepted by the microcontroller.
4. Program the new receive frequency by typing
+
438.83750 SHIFT
If the information was entered properly, and accepted by the microcontroller, the
display will read
5. Program the time-out timer length by entering
+ + +
94
SHIFT
6. Program the soft carrier time by entering
+ SHIFT + ENTER
7. Disable the STE by typing
ELIMINATOR OFF
8. The information entered in can now be reviewed by using the
commands to review each setting.
9. Enter the loopback code by typing
+ . The display will change and read
ENTER
10. Close the diagnostics channel by typing
This completes the programming sequence.
MDS 05-2415A01, Rev. A
+ . Be sure to include the decimal point and all trailing zeros.
ENTER
TX FRQ PRGMD TO 428.83750 MHZ
+ , again taking care to enter in all characters.
ENTER
RX FRQ PRGMD TO 438.83750 MHZ
. The display will read
ENTER
Display will read
. SOFT CARR. DEKEY SET TO 004 MS
DSTE +
ENTER
.
PLBC
PROGRAMMING AND DIAGNOSTICS
+ . Display will read:
FRQ ENTER
+ +
PTX
SPACE
if the information was entered
+ +
PRX SPACE
.
+ +
PTOT
SPACE
TIME-OUT TIMER SET TO 094 SECS
PSCD +
SPACE + SHIFT
. The display will read
+ + +
1234
SPACE SHIFT
LOOPBACK CODE = 1234
+ before unplugging the HHT.
CLOS
ENTER
+
SHIFT
SHIFT
SHIFT
.
+ 4
.
SQUELCH TAIL
and
FRQ, TOT, SCD STE
+
SHIFT
.
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