OS GSO IEC 60487-2-7:2015
Omani Standard
Current Edition
·
Approved on
03 September 2015
·
Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Seven: Radio transmitters
OS GSO IEC 60487-2-7:2015 Files
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OS GSO IEC 60487-2-7:2015 Scope
In this section selected methods of measurement are described which are applicable to the electrical characteristics of terrestrial radio-relay system transmitters of the heterodyne type excluding any r.f. branching and switching networks. The block diagram of Figure 1, page 18, is a functional representation of such a transmitter but in practice the actual diagram may differ in detail.
Local oscillator noise, although an important parameter of a transmitter, is not usually measured on the transmitter itself, but rather between baseband terminals in the radio-relay system.
This parameter, which results in path-loss-independent baseband noise, is not therefore considered in this section
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