CALIBRATION PROCEDURE FOR RADIO TEST SET, IFR SYSTEMS INC., MODELS 2947 AND 2947A AND MARCONI, MODEL 2947
SECTION I. IDENTIFICATION AND DESCRIPTION
Table 1. Calibration Description.
SECTION II. EQUIPMENT REQUIREMENTS
Table 2. Minimum Specifications of Equipment Required.
SECTION III. CALIBRATION PROCESS
Frequency
Table 3. Frequency Accuracy.
Table 4. Output Level.
Table 4. Output Level Continued.
Output Level
Residual FM and AM
Harmonics and Spurious Signals
Single Sideband Phase Noise
Amplitude Modulation
Amplitude Modulation - Continued
Frequency Modulation
Table 11. Frequency Modulation @ 100 Hz.
Table 12. Frequency Modulation @ 10 kHz.
Audio Voltmeter
Audio Generator Output Level
Table 15. Audio Generator 1 Output Level.
Table 17. Audio Generator 1 Distortion
Audio Frequency Meter
AF Distortion and Sinad Meter
AF Distortion and Sinad Meter - Continued
AM Modulation Analyzer
Figure 3. AM Modulation Analyzer Connection.
Table 21. AM Modulation Analyzer 1 kHz Rate.
Table 22. FM Modulation Analyzer 1 kHz Modulation Rate.
Table 23. FM Modulation Analyzer 100 Hz Modulation Rate.
Table 25. RF Spectrum Analyzer.
Figure 4. A 10/1 Board.
RF Spectrum Analyzer
Figure 5. A3/1 Board.
Figure 6. A4/1 Board.
RF Spectrum Analyzer - Continued
RF Spectrum Analyzer - Continued
RF Spectrum Analyzer - Continued
Figure 7. A15 SSB Board.
Figure 8. Power Meter Connection.
Table 26. RF Power Meter.
Figure 9. Power Meter Adjustment.
RF Power Meter
RF Power Meter - Continued
RF Power Meter - Continued
SECTION IV. ADJUSTMENT PROCESS
Preliminary Instructions
Figure 10. TI Board Placement.
Figure 11. B1/2 Board.
Voltmeter DC Offsets and Sensitivity
Microphone Amplifier Level Gain
Modulation Meter FM
SECTION I. IDENTIFICATION AND DESCRIPTION
Table 1. Calibration Description.
SECTION II. EQUIPMENT REQUIREMENTS
Table 2. Minimum Specifications of Equipment Required.
SECTION III. CALIBRATION PROCESS
Frequency
Table 3. Frequency Accuracy.
Table 4. Output Level.
Table 4. Output Level Continued.
Output Level
Residual FM and AM
Harmonics and Spurious Signals
Single Sideband Phase Noise
Amplitude Modulation
Amplitude Modulation - Continued
Frequency Modulation
Table 11. Frequency Modulation @ 100 Hz.
Table 12. Frequency Modulation @ 10 kHz.
Audio Voltmeter
Audio Generator Output Level
Table 15. Audio Generator 1 Output Level.
Table 17. Audio Generator 1 Distortion
Audio Frequency Meter
AF Distortion and Sinad Meter
AF Distortion and Sinad Meter - Continued
AM Modulation Analyzer
Figure 3. AM Modulation Analyzer Connection.
Table 21. AM Modulation Analyzer 1 kHz Rate.
Table 22. FM Modulation Analyzer 1 kHz Modulation Rate.
Table 23. FM Modulation Analyzer 100 Hz Modulation Rate.
Table 25. RF Spectrum Analyzer.
Figure 4. A 10/1 Board.
RF Spectrum Analyzer
Figure 5. A3/1 Board.
Figure 6. A4/1 Board.
RF Spectrum Analyzer - Continued
RF Spectrum Analyzer - Continued
RF Spectrum Analyzer - Continued
Figure 7. A15 SSB Board.
Figure 8. Power Meter Connection.
Table 26. RF Power Meter.
Figure 9. Power Meter Adjustment.
RF Power Meter
RF Power Meter - Continued
RF Power Meter - Continued
SECTION IV. ADJUSTMENT PROCESS
Preliminary Instructions
Figure 10. TI Board Placement.
Figure 11. B1/2 Board.
Voltmeter DC Offsets and Sensitivity
Microphone Amplifier Level Gain
Modulation Meter FM
