OPERATION MANUAL
IFF-701Ti
1-2-2
Page 4
Jul 1/00
2.1 FRONT PANEL
Refer to 1-2-2, Figure 2.
ITEM DESCRIPTION
1. MONITOR Meter
Provides, according to MONITOR
METER FUNCTION Switch selection,
analog indication of COM Transmitter
RF power, Signal Generator RF level,
Battery voltage, percent modulation of
Signal Generator or VOR bearing
errors at 90
°.
2. MONITOR METER FUNCTION Switch
Selects MONITOR Meter function:
● 10W selects 0 to 10 Watt scale
(bottom scale) to measure COM
Transmitter RF power.
● 100W selects 0 to 100 Watt scale
(bottom scale X 10) to measure
COM Transmitter RF power.
● RF indicates best Signal Generator
RF level by adjusting TUNE
Control with FINE TUNE Switch
pressed to set MONITOR Meter to
center scale.
● BAT selects 0 to 30% scale in
volts to indicate internal Battery
voltage. A
≥15 V reading indicates
a fully charged Battery. A <12 V
reading indicates a discharged
Battery.
● 30% selects 0 to 30% scale to
measure modulation level of Signal
Generator.
● 100% selects 0 to 100% scale to
measure modulation level of Signal
Generator.
● BRG checks VOR Generator at
90
°. Center of the band indicates
0
° bearing error. Left or right
meter scale limit indicates bearing
errors of
±0.5%.
ITEM DESCRIPTION
3. LOC DDM Control
Selects amount of LOC pointer
deviation of an ILS Indicator under
test. Calibrations in DDM represent,
standard deflection (.093), full scale
(.155) and greater than full scale
deflections (.200). Clockwise rotation
provides upward deflection.
The 150 ~ or 90 ~ position deletes the
opposite tone (90 or 150 Hz) and sets
the selected tone (150 or
90 Hz) to the same level as the on
course value (20%) for a flag test.
NOTE: Setting the G/S DDM Control
to the same 150 ~ or 90 ~
position when using the
Localizer function deletes the
selected Localizer tone.
Setting the LOC DDM Control to
150 ~ and the G/S DDM Control to 90
~ or vice versa provides continuous
wave operation.
The
↓ position allows the LOC VAR
DDM/DDM SWEEP AMPLITUDE
Control to set continuously deviated
deflection.
4. DIGITAL Display
Provides digital readout of selected
VOR bearing, internal Signal
Generator frequency, external signal
frequency or COM Transmitter
frequency. The COUNTER MODE
Switch determines displayed function.
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