GB/T 6163-2011Methods of measurement on radio receivers for FM broadcast transmissions (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

This standard and IEC 60315-4:1997 "Methods of measurement on radio receivers for various classes of emission - Part 4. FM sound broadcasting Transmitter-receiver "of non-equivalent.

This standard replaces GB/T 6163-1985 "FM radio receiver measurements." this standard and GB/T 6163-1985 compared to the main changes are as follows.

--- Added "Preface."

--- Added "normative references."

--- Added "terminology and provisions" in each of the English name.

--- Original standard 2.8 "standard modulation" in standard tuning system requires 30 percent to 3.8 standard is defined as 100% modulation.

100% (± 75kHz deviation) --- original standard 2.8.2 "standard stereo modulation ', is amended as. 100% (± 74.25kHz Deviation). The pilot signals account for 10% (± 7.5kHz deviation), revised as follows. 10%. The main composite signal, a signal representing the Deputy 90% (± 67.5kHz deviation), revised as follows. 90%. The spectrum stereo composite signal stereo modulation 100% (± 75kHz deviation), is amended as. 100% (± 74.25kHz deviation). Frequency and 1 "stereo composite signal of FIG.

100% (± 75kHz deviation) spectra "in the standard stereo modulation, modified to 100% (± 74.25kHz deviation) (see 3.8.2).

--- Original standard 2.8.2 Table 3 "offset assignment stereo modulation signal" modulation perch 100% and 30% of no. 7.5kHz amended as. 6.75kHz (see 3.8.2).

--- Increased Chapter 10, "Automatic search system characteristics."

--- Original standard Chapter 9, "two-signal selectivity" of 9.1 measuring method of frequency deviation ± 22.5kHz revised as. ± 75kHz; increase Added, "If necessary, the modulation deviation of the interference signal receiver may be ± 40kHz"; the 21 "two-signal selectivity" Frequency Partial ± 22.5kHz revised as. ± 75kHz (see Chapter 11).

--- Original standard Chapter 10, "IF rejection" in the measurement method of deviation 10.1 ± 22.5kHz revised as. ± 75kHz; the original standard Registration 22 adds "input signal level - less than the slice level 3dB", deviation ± 22.5kHz revised as. ± 75kHz (See Chapter 12).

--- Original standard Chapter 11, "Image Rejection" in the measurement methods 11.1.1 adds "In the tuning frequency of the input signal should be less than the limit Slice level 3dB "; the original standard 24 adds" Test Frequency -88,108MHz; the input signal level - less than limiter Level 3dB; deviation - ± 75kHz. "(See Chapter 13).

--- Original standard Chapter 12, "spurious response suppression" in the frequency deviation ± 22.5kHz revised as. ± 75kHz; increase the "Input Signal Level - less than the slice level 3dB "(see Chapter 14).

--- Original standard Chapter 13, "capture ratio" in the frequency deviation ± 22.5kHz revised as. ± 75kHz (see Chapter 15).

--- Original standard Chapter 15, "Tuning Features" deviation ± 22.5kHz revised as. ± 75kHz (see Chapter 17).

--- Original standard Chapter 16, "RF intermodulation" the deviation ± 22.5kHz revised as. ± 75kHz; will be "used for the measurement frequency interval deltaf should not be less than 300kHz, and has been measured to ± 2.2MHz ", changed to" used for the measurement frequency interval deltaf from ± 400kHz ~ ± 2.2MHz "(see Chapter 18).

--- Original standard Chapter 17, "Machine voltage harmonic distortion" in the frequency deviation ± 22.5kHz revised as. ± 75kHz; adds new standard 19.6 "distortion of the supply voltage is changed" and 19.7 "distortion caused by the ambient temperature."

--- Increased Chapter 22, "step-down feature."

--- Original standard Chapter 20, "Machine voltage frequency characteristics" in the frequency deviation ± 22.5kHz revised as. ± 75kHz (see Chapter 23).

--- Original standard Chapter 22, "hum" in the frequency deviation ± 22.5kHz revised as. ± 75kHz (see Chapter 25).

--- Original standard Chapter 23 "single whistle signal called" the deviation ± 22.5kHz revised as. ± 75kHz (see Chapter 26).

--- Original standard Chapter 25, "Audio camera shake" the deviation ± 22.5kHz revised as. ± 75kHz (see Chapter 28).

--- Original standard Chapter 26, "high-frequency camera shake" the deviation ± 22.5kHz revised as. ± 75kHz (see Chapter 29).

--- Original standard Chapter 27, "Frequency Range" Frequency Offset ± 22.5kHz revised as. ± 75kHz (see Chapter 30).

--- Original standard Chapter 28, "intermediate frequency" Frequency Offset ± 22.5kHz revised as. ± 75kHz (see Chapter 31).

--- Original standard Chapter 31, "change the tuning frequency" Frequency Offset ± 22.5kHz revised as. ± 75kHz (see Chapter 34).

--- Chapter 33 of the original standard local oscillator radiation in the electromagnetic compatibility GB 6114-1985 "broadcast receiver interference characteristic measurement method" Standard, instead. GB 13837-2003 "Sound and television broadcast receivers and associated equipment - Radio disturbance characteristics - Limits and measurement the method "(see Chapter 36).

--- Original standard Chapter 36, "separation" in the frequency deviation ± 20.25 revised as follows. ± 67.5kHz (see Chapter 39).

--- Original standard Chapter 37 "non-linear crosstalk" in the frequency deviation ± 20.25 revised as follows. ± 67.5kHz (see Chapter 40).

--- Original standard Chapter 38, "balance" in the frequency deviation ± 20.25 revised as follows. ± 67.5kHz (see Chapter 41).

--- Original standard Chapter 39, "Stereo identity" in the frequency deviation ± 20.25 revised as follows. ± 67.5kHz (see Chapter 42).

--- Increase in Chapter 45, "causing interference measurements RDS", was added to this standard.

--- Increased measurement items.

--- Basic parameters have been modified.

The standard proposed by the Ministry of Industry and Information Technology of the People's Republic of China.

This standard by the national audio, video and multimedia systems and equipment Standardization Technical Committee (SAC/TC242) centralized.

This standard drafting units. China Electronics Technology Group Corporation Institute, the National Radio and Television Product Quality Supervision and Inspection Center, Guangdong Supervision, Inspection and electrical and electronic products, Dongguan Desheng General Electric Manufacturing Co., Ltd., Guangzhou Rui Feng audio company, Sony (China) Ltd., the Ministry of Information Industry Institute of the fifth, Foshan Sanshui good helper Electronic Technology Co., Ltd.

1 Scope

This standard specifies the method for measuring FM radio receiver.

This standard applies to the frequency of 87MHz ~ 108MHz mono and stereo FM radio receiver (includes a tuner, car Radio, FM radio combination machine part; and a dedicated FM radio receiver --- collectively, receivers) were electro-acoustic performance measurement the standard measurement method.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

IEC 60315-1. 1988 Methods of measurement on radio receivers for a variety of classes of emission - Part 1. General considerations and measurements (including Audio measurement) method (Methodsofmeasurementonradioreceiversforvariousclassesofemission-Part 1.

Generalconsiderationsandmethodsofmeasurement, includingaudio-frequencymeasurements) IEC 60315-4:1997 Methods of measurement on radio receivers for various classes of emission - Part 4. FM sound broadcasting transmitter connection Receiver (Methodsofmeasurementonradioreceiversforvariousclassesofemission-Part 4. Receiversfor frequency-modulatedsoundbroadcastingemissions)

3 Terms and Definitions

The following terms and definitions apply to this document.

Voltage and current values voltageandcurrentquantities in addition to special stated otherwise, are expressed in RMS.

Level representation presentationoflevel Power, voltage and field strength level values expressed in decibels, as shown in Table 1.

Table 1 level representation

Category 0dB level value symbol Power 1fW = 1 × 10-15W dB (fW) (abbreviated as dBf) Voltage 1µV = 1 × 10-6V dB (µV) Field 1µV/m = 1 × 10-6V/m dB (µV/m) 3.3 Carrier frequency Average or unmodulated frequency of the instantaneous frequency. For an ideal (contains neither DC component, there is no non-linear distortion) of Modulation system, these two values are the same.