Section 4. Programming
4-8
DIAGNOSTIC PROGRAMMING COMMANDS
The following commands will be used during the initial installation to set levels and verify
correct operation. They can also be used at any time to assist in trouble-shooting any
problems with the normal operation of the repeater.
Repeater Knockdown and Setup
The Model 37-MAX can be disabled and then enabled again (without losing any of its
programming) by using the Disable button on its front panel. These commands allow the
technician to do the same thing remotely using DTMF commands. Once the Repeater
Knockdown command has been used, the 37-MAX will remain idle until the Program Mode
is entered again, or the Disable button on the front panel is used. The panel can be re-enabled
during the same programming session by using the Repeater Setup command.
300#
Repeater Knockdown
301#
Repeater Setup
Reset Programming to Factory Default
This command will erase the programmable parameters held in non-volatile memory and
then write in the factory default values. This command can be used to “zero-out” a unit that is
in some unknown condition, so that programming it can proceed from a known, defined state.
391#
Reset all Programming to Factory Default Values
TX Audio Test
This command is used to set the transmit deviation for audible tones and voice coming from
the Model 37-MAX. When this command is entered, the panel will key the transmitter and
put out a 1 kHz sine wave. The technician should adjust the transmit level control in the 37-
MAX (R3) until the transmitter is modulated at 60% of full channel deviation (e.g. for 3 kHz
deviation on a channel licensed for 5 kHz maximum deviation). To terminate the test, send a
“#” to the panel. This test is
not
used to set the repeat audio level.
392#
Transmit Audio Test
TX Audio Pre-Emphasis Test
This test is used to determine the pre-emphasis slope of the repeater transmitter. When this
command is entered, the 37-MAX will key the transmitter and generate a sine wave. The
frequency of the sine wave will change every time a DTMF digit is received by the panel,
cycling through 400 Hz, 1000 Hz, 2000 Hz, and then starting over again. The test is
terminated by sending a “#” to the panel.
393#
Transmit Audio Pre-Emphasis Test
Repeat Audio Test
Summary of Contents for 37-MAX
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