MEASUREMENT OF SPURIOUS EMISSION FROM LAND-MOBILE COMMUNICATION TRANSMITTERS, RECOMMENDED PRACTICE FOR
Institute of Electrical & Electronics Engineers
1 Scope
1.1 Subsystems
1.2 Limitations
1.3 Supplementary testing
2 Definition of terms
2.1 General
2.2 Standard reference terms
2.3 Performance characteristics
3 References
4 Test conditions, apparatus and assembly
4.1 Test conditions
4.1.1 Environmental
4.1.2 Standard electrical test conditions
4.2 Test apparatus
4.2.1 Frequency selective voltmeter
4.2.2 Modulation sideband receiver
4.2.3 Modulation monitor receiver
4.2.4 Measurement probes
4.2.5 Signal generator
4.2.6 Noise generator
4.2.7 Deviation monitor
4.2.8 Voice modulation simulator (VOSIM)
4.2.9 Noise and distortion meter
4.2.10 Test adapters
4.2.11 General measuring instrument requirements
4.3 Test assembly
5 Test procedures and presentation of data
5.1 Conducted spurious emission
5.1.1 Introduction
5.1.2 Modulation sideband spectrum
5.1.3 Presentations of data
5.2 Modulation sidebands and broadband noise
spurious emission
5.2.1 Introduction
5.2.2 Method of measurement
5.2.3 Presentation of data
5.3 Narrowband spurious emission
5.3.1 Introduction
5.3.2 Method of measurement
5.3.3 Presentation of data
5.4 Intermodulation spurious emission
5.4.1 Introduction
5.4.2 Method of measurement
5.4.3 Presentation of data
5.5 Conducted spurious emission on power, ground
return and control lines
5.5.1 Introduction
5.5.2 Method of measurement
5.5.3 Presentation of data
5.6 Radiated spurious emission from cabinet
5.6.1 Narrowband spurious emission
5.6.1.1 Introduction
5.6.1.2 Method of measurement
5.6.1.3 Near field radiation power
5.6.1.4 Presentation of data
Figures
1 Open field measurement system
2 Selectivity of modulation sideband receiver
3 Typical powerline stabilization network
4 Input impedance of stabilization network
5 Narrowband spurious emission at transmitter
output
6 Narrowband power and control cable spurious
radiation measurement
7 Conducted spurious test apparatus
8 Transmitter audio characteristic
9 Adjacent channel modulation interference
10 Adjacent channel worst case modulation
interference
11 System interference protection ratio test
apparatus
12 Conducted noise and modulation sideband
spurious emission
13 Narrowband spurious emission
14 Intermodulation spurious emission test
apparatus
15 Intermodulation spurious conversion attenuation
16 Power, ground and control line spurious output
Table
1 Tabulation of values
Establishes energy levels of spurious emissions of mobile communication transmitters which generate (FM) signals of 25 to 1000 MHz. Measures broad and narrow-band spectra for conducted and radiated emissions.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
