METHODS OF MEASUREMENT FOR EQUIPMENT USED IN TERRESTRIAL RADIO-RELAY SYSTEMS - MEASUREMENTS COMMON TO SUB-SYSTEMS AND SIMULATED RADIO-RELAY SYSTEMS
International Electrotechnical Committee
Contents
Foreword
Preface
Section One - General
Clause
1. Scope
2. Object
3. Terms and definitions
4. Conditions of measurement
5. Standard test conditions
6. Supplementary conditions for the power supply
Section Two - Measurements in the Radio-Frequency Range
8. General
9. Carrier frequency
10. Impedance (or admittance) measurements
11. Level measurement
12. Amplitude/frequency characteristic
13. Group-delay/frequency characteristic
14. Differential gain and phase characteristics
15. Spurious signals (including harmonics)
Section Three - Measurements in the Intermediate-Frequency
Range
16. Return loss
17. Input and output levels
18. Amplitude/frequency characteristic
19. Static a.g.c. characteristic
20. Group-delay/frequency characteristic
21. Differential gain and phase characteristics
22. Carrier frequency
23. Harmonic and spurious signals
Section Four - Measurements in the Baseband
24. Linear input and properties
25. Linear transfer properties
26. Non-linear transfer properties
27. References
Figures
Appendix A - Differential gain and phase characteristics -
Mathematical relationships
Gives standard conditions of measurement and methods of measuring the characteristics common to sub-systems of terrestrial line of sight radio relay systems and to simulated radio relay systems using frequency modulation. The tests described are limited to analogue transmission systems. Standardizes the conditions and methods of measurement to be used to ascertain the performance of terrestrial radio relay systems, and facilitates the comparison of the results of measurements made by different observers. Contains details of selected methods of making measurements to enable the assessment of the essential properties of a terrestrial radio relay system and of the equipment used in such systems.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 12 |
