Page 3-28
Vector-LP Radio Beacon Transmitter Technical Instruction Manual
Issue 1.1
Section 3 Operating Instructions
Set Thresholds
Refl. Power Shutback:
38
Main Menu
Modify
Back
12:43:16 Power: 0W Side A Bypass
Set Thresholds
Refl. Power Shutback:
38
Main Menu
Modify
Back
12:43:16 Power: 0W Side A Bypass
12:43:16 Power: 0W Side A Bypass
3.6.12.1 CALIBRATING DIAGNOSTIC
DISPLAY METERS
Re-align an out-of-tolerance meter reading for
a displayed parameter as follows:
NOTE
All meter readings displayed on the meters
screen can be adjusted. It is imperative that
reliable, calibrated test equipment be used
to verify the actual value of the out-of-
tolerance parameter.
(a) Press
f
or
g
until the desired out-of-
tolerance parameter and its current
metered level is displayed.
(b) To calibrate a meter, press
Modify
and
then
f
or
g
to adjust the level of the out-
of-tolerance parameter. When complete,
press
Done
.
(c) Continue calibration of other metered
parameters or return to previous menu by
pressing
Back
. A message prompt
appears to confirm saving all
modifications to the EEPROM. Press
Yes
or
No
.
3.6.12.2 SETTING PROTECTION
THRESHOLD LEVELS
Adjustments can be made to the critical
transmitter shutback thresholds, such as RF
current, low ac voltage, and high reflected
power cutback levels. Less critical settings,
such as diagnostic display contrast and
speaker volume (audio) can also be adjusted.
Set these thresholds as follows:
CAUTION
Protection threshold levels are factory set
and do not normally require adjustment.
Contact Nautel prior to attempting to alter
these settings. Failure to comply could result
in equipment damage.
(a) Press
f
or
g
until the desired threshold
and its current value is displayed. The
following thresholds may be displayed
and edited:
x
Refl. Power Shutback
x
Low AC Voltage
x
RF Current Shutback
x
Audio
x
LCD Contrast
x
Slowback Pwr (Per Block)
x
Max. PS Temperature (°C)
x
Max. ATU Temperature (°C)
x
Minimum Logged Cutback
x
Ac Meter Zero Offset
(b) To edit a threshold value, press
Modify
and then
f
or
g
to adjust the value.
When complete, press
Done
. Press
Reset
to restore the value to its pre-
modified setting.
NOTE
The Minimum Logged Cutback threshold
can be set between 1 (least severe) and 18
(most severe). Only cutback occurrences of
the set value and higher (more severe) will
be logged.
(c) When complete, return to previous menu
by pressing
Back
. A prompt appears to
confirm saving modifications to the
EEPROM. Press
Yes
or
No
.
Calibrate Meters
PDM B: 0.00
0
50
100
Main Menu
Modify
Back
12:43:16 Power: 0W Side A Bypass
Calibrate Meters
PDM B: 0.00
0
50
100
Main Menu
Modify
Back
12:43:16 Power: 0W Side A Bypass
12:43:16 Power: 0W Side A Bypass
