What is BS EN 60510-2-5 - Frequency modulators about?
BS EN 60510 is a series on methods of measurement for radio equipment used in satellite earth stations. Radio equipment is an electrical or electronic product, which intentionally emits and/or receives radio waves for the purpose of radio communication and/or radio determination.
Methods are given in BS EN 60510-2-5 for the measurement of the electrical characteristics of frequency modulators. Furthermore, where possible, only measurements involving the basic modulator are considered, that is excluding the baseband section comprising the pre-emphasis network and the networks associated with sound sub-carrier signals, pilot signals and auxiliary signals.
Who is BS EN 60510-2-5 - Frequency modulators for?
BS EN 60510-2-5 on frequency modulators is useful for:
- Telecommunication component manufacturers
- Telecommunication equipment manufacturers
- Design engineers
- Quality control personnel
Why should you use BS EN 60510-2-5 - Frequency modulators?
Radio equipment is a set of equipment necessary to carry on communication via radio waves. Methods of measurement for frequency demodulators are given in BS EN 60510-2-5. Measurements between baseband terminals of modulator/demodulator assemblies are covered by BS EN 60510-2-5. A block diagram for a typical modulator sub-system is shown in BS EN 60510-2-5. The characteristics to be measured can be divided into three principal which are non-transfer characteristics, baseband to I.F. characteristics, and certain baseband-to-baseband transmission characteristics in conjunction with a measurement demodulator.
The first category concerns measurements at the baseband port only or at the I.F. port only including frequency and spurious/harmonic signal measurements at the I.F. output. These measurements are described elsewhere in BS EN 60510-2-5. The second category of measurements forms an essential part of this section because of the nature of the device under test — transfer from baseband to I.F. The third category of measurements includes those to be carried out on a complete modulator/demodulator (modem) assembly except that the actual or system demodulator is replaced by a measurement demodulator. It is very important to know the separate contribution of a modulator to the total permitted tolerances of performance characteristics because, in an operational situation, modulators of one design or manufacturer may have to work with demodulators of another design or manufacturer. Compensation effects between modulators and demodulators are therefore undesirable and each modulator should fulfil the BS EN 60510-2-5 in association with a measurement demodulator. This procedure requires the measurement demodulator to have a better performance than that specified for the modulator under test. Using BS EN 60510-2-5 you can specify the measurement of the electrical characteristics of frequency modulators.
