Viavi IFR 4000 User manual

T.O. 33K3-4-3457-1
30 APRIL 2006
TECHNICAL MANUAL
CALIBRATION PROCEDURE
FOR
NAV/COMM TEST SET
IFR4000
(IFR AMERICAS INC)
This publication replaces T.O. 33K3-4-3457-1 dated 30 March 2005 and all subsequent changes.
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official use or for administrative or operational purposes only, 30 March 2005. Requests for this
document shall be referred to 562 CBSG/MLLW, 813 Irving-Wick Dr W, Heath, OH 43056-1199.
Destruction Notice - For unclassified, limited documents, destroy by any method that will prevent
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Published under Authority of the Secretary of the Air Force

T.O. 33K3-4-3457-1
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T.O. 33K3-4-3457-1
NAV/COMM TEST SET
IFR4000
(IFR AMERICAS INC)
1 CALIBRATION DESCRIPTION:
Table 1.
Test Instrument (TI) Performance Test
Characteristics Specifications Method
RF Signal Generator
Output Frequency Range: Compared to a
VOR: Frequency Standard
107 to 118 MHz;
LOC:
107 to 113 MHz;
Marker Beacon:
72 to 78 MHz;
Comm VHF AM:
117 to 157 MHz;
G/S:
327 to 337 MHz;
Comm VHF FM:
155 to 175 MHz;
Comm UHF:
224 to 401 MHz;
SELCAL:
117 to 157 MHz
Accuracy: time base
±1 ppm when Autocal is performed
Output Level Measured with a
Power Meter, Power
ANT Connector Sensor and Microwave
Measurement System
Single Carrier Range: -67 to +13 dBm
Accuracy: ±3 dB
1

T.O. 33K3-4-3457-1
Table 1. (Cont.)
Test Instrument (TI) Performance Test
Characteristics Specifications Method
RF Signal Generator (Cont.)
Output Level (Cont.) Measured with a
Power Meter, Power
RF I/O Connector Sensor and Microwave
Measurement System
Single Carrier Range: -130 to -12 dBm
Accuracy:
-120 to -95 dBm, ±3 dB;
-94.5 to -40 dBm, ±2 dB;
-39.5 to -12 dBm, ±2.5 dB
Spectral Purity Measured with a
Spectrum Analyzer
Harmonics Range: 72 to 401 MHz
Accuracy: <-20 dBc
Non-Harmonics Range: 75 to 400 MHz
Accuracy: <-35 dBc
VOR Mode Measured with ILS/VOR
Signal Calibrator,
Tone Frequency Range: 30 Hz Ref, 30 Hz Var, Universal Counter and
1020 and 9960 Hz Audio Analyzer
Accuracy: ±0.02% of setting
AM Modulation Range: 30%,
30, 1020 and 9960 Hz;
10%, 1020 Hz Morse Code
Accuracy: In CAL position:
Modulation: ±2% AM;
Distortion: <2.5% THD *1
FM Modulation Range: 30 Hz Ref @ ±480 Hz
Peak Deviation on 9960 Hz sub-carrier
Accuracy: ±25 Hz peak deviation
See footnote at end of Table.
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T.O. 33K3-4-3457-1
Table 1. (Cont.)
Test Instrument (TI) Performance Test
Characteristics Specifications Method
VOR Mode (Cont.) Measured with ILS/VOR
Signal Calibrator,
Bearing Range: 0.0°to 359.9°Universal Counter and
Audio Analyzer
Accuracy: ±0.1°
LOC Mode
Tone Frequency Range: 90, 150 and 1020 Hz
Accuracy: ±0.02% of setting
Modulation Range:
20% AM, 90 and 150 Hz;
30% AM, 1020 audio tone;
10% AM, 1020 Morse Code
Accuracy: In CAL position:
Modulation: ±2% AM;
Distortion: <2.5% THD
DDM
Fixed Range: ±0, 0.093, 0.155 or
0.200 DDM and Tone Delete
Accuracy: ≤+10 dBm output level,
±(0.0015 DDM +3% of setting)
Variable Range: ±0.4 DDM
Accuracy: ≤+10 dBm output level,
±(0.0025 DDM +3% of setting)
G/S Mode
Tone Frequency Range: 90 and 150 Hz
Accuracy: ±0.02% of setting
3