This standard specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of broadband amplifiers, broadband antenna amplifiers, channel antenna amplifiers and channel amplifiers (hereinafter referred to as equipment) in cable distribution systems for television and sound signals from 5MHZ to 1750MHz. This standard applies to broadband amplifiers, broadband antenna amplifiers, channel antenna amplifiers and channel amplifiers in cable distribution systems for television and sound signals from 5MHZ to 1750MHz. GB/T 11318.7-1996 Cable distribution system equipment and components for television and sound signals Part 7: General specifications for amplifiers GB/T11318.7-1996 Standard download decompression password: www.bzxz.net

1 Scope
National Standard of the People's Republic of China
Equipment and components used in cabled distribution systems primarily intended for television and sound signals
Part 7: Generic specifications for amplifiers
Equipments and components used in cabled distribution systems primarily intended for television and sound signals Part 7: Generic specifications for amplifiers GB/T 11318.7—1996
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of broadband amplifiers, broadband antenna amplifiers, channel antenna amplifiers and channel amplifiers (hereinafter referred to as equipment) in cabled distribution systems for television and sound signals of 5MHz~~1750MHz.
This standard applies to broadband amplifiers, broadband antenna amplifiers, channel antenna amplifiers and channel amplifiers in cabled distribution systems for television and sound signals of 5MHz~1750MHz. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When this standard was published, the versions shown were all valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T6510-1996 Cable distribution systems for television and sound signals GB/T11318.1-1996 Cable distribution systems for television and sound signals Equipment and components Part 1: General specifications 3 Definitions
This standard adopts the following definitions. Other definitions and symbols should comply with the relevant provisions in GB/T6510 and GB/T11318.1. 3.1 Wideband amplifier widebandamplifier An amplifier used to increase the signal level within a certain bandwidth and compensate for the attenuation of the transmission system. 3.2 Channel amplifier channel amplifier An amplifier used to increase the signal level of a single channel. 4 Product classification
4.1 Wideband amplifier.
4.2 Broadband antenna amplifier.
4.3 Channel amplifier.
4.4 Channel antenna amplifier.
Approved by the State Administration of Technical Supervision on September 9, 1996 362
Implemented on May 1, 1997
5 Requirements
5.1 General requirements
GB/T11318.7-1996
General requirements for equipment shall comply with the provisions of 4.1.1 of GB/T11318.1-1996. 5.2 Performance parameters
Performance parameter requirements are shown in Tables 1 to 4.
Broadband amplifier (including band amplifier) ​​serial number
Nominal value
Allowable deviation
In-band flatness
Maximum output level
Carrier second-order intermodulation ratio
Performance parameters
Specified by product standards
105,110,115,120
≥42, ≥52
Note: The nominal gain and maximum output level should be reasonably combined to avoid the input level being too high or too low. Table 2
Nominal value
Allowable deviation
Maximum output level
In-band flatness
Noise figure
Broadband antenna amplifierbzxZ.net
Performance parameters
Specified by product standards
≥90.≥95
A35８7
dc:≤24ja.c. :36
Channel type antenna amplifier
Nominal value
Allowable deviation
Maximum output level
Performance parameters
Specified by product standards
≥90≥95
Measurement method
GB/T11318.1--1996
4.2.2.2.1
4.2.2.2.1
4. 2.2.2.2
4.2.2.2.3
4. 2.2. 2. 4
4.2.2.2.5
Measurement method
GB/T11318.1--1996
4.2.2.2.1
4. 2.2.2.2
4.2.2.2.1
4.2.2.2.4
4.2.2.2.5
Measurement method
GB/T 11318. 1-: 1996
4. 2. 2. 2. 1
4.2.2.2.2
Same as the note in Table 1.
Out-of-band attenuation
Noise figure
Nominal value
Allowable deviation
Out-of-band attenuation
Maximum output level
Working output level
AGC characteristics
GB/T11318.7—1996
Table 3 (end)
Performance parameters
dc +≤24sa.c. :≤36
Table 4 Channel amplifier
2 Items 5 and 8 are only applicable to components with AGC function. 5.3 Environmental adaptability
Performance parameters
Specified by product standards
≥110
≥115
≥120
≥105
≥110
≥115
When the input level changes by 10, the output change is within ±1.
Measurement method
GB/T 11318.1 1996
4.2.2.2.1
4.2.2.2.1
4.2.2.2.4
4.2.2.2.5
Measurement method
GB/T 11318. 1---1996
4.2.2.2.1
1.2.2.2.1
4.2.2.2.1
4.2.2.2.2
4.2.2.2.2
4.2.2.2.4
4.2.2.2.5
4.2.2.2.6
The environmental adaptability requirements of the equipment shall comply with the relevant provisions of 4.3 of GB/T11318.1-1996. The test items after high temperature, constant humidity and heat, low temperature (outdoor type), sweep frequency vibration, sealing (outdoor type) and collision tests are gain, and the qualified criterion is that the change is within ±3dB compared with the initial value. After the low temperature or salt spray (outdoor type) test and free fall test, the performance test shall be carried out according to the items specified in Tables 1 to 4. The test results shall comply with the relevant provisions of Tables 1 to 4. 5.4 Reliability
The lower limit value of the reliability index of the equipment, the mean time between failures (MTBF), shall not be less than 20,000 hours. The failure criterion is that the gain changes by more than 3 dB compared with that before the test. 5.5 Safety
GB/T11318.7—1996
The safety requirements of the equipment shall comply with the relevant provisions of 4.5 of GB/T11318.1—1996. 5.6 Electromagnetic compatibility
The electromagnetic compatibility requirements of the equipment shall comply with the relevant provisions of 4.6 of GB/T11318.1--1996. 6 Test methods
6.1 General requirements
The test methods for general requirements of the equipment shall be carried out in accordance with the provisions of 4.1.2 of GB/T11318.1-1996. 6.2 Performance parameters
The measurement of the electrical performance parameters of the equipment shall be carried out in accordance with the relevant provisions of 4.2.2 of GB/T11318.1-1996. 6.3 Environmental adaptability
The test methods for environmental adaptability of the equipment shall be carried out in accordance with the relevant provisions of 4.3 of GB/T11318.1-1996. The test temperature group is 1.
6.4 Reliability
The reliability test methods of the equipment shall be carried out in accordance with the provisions of 4.4 of GB/T11318.1-1996. 6.5 Safety
The safety test methods of the equipment shall be carried out in accordance with the provisions of 4.5 of GB/T11318.1-1996. 6.6 Electromagnetic compatibility
The electromagnetic compatibility test method of the equipment shall be carried out in accordance with the relevant provisions of 4.6 of GB/T11318.1-1996. 7 Inspection rules
The inspection rules of the equipment shall comply with GB/T11318.1-1996 Chapter 5. The electrical performance items for delivery inspection are the relevant provisions of Tables 1 to 4.
8 Marking, packaging, transportation and storage
The marking, packaging, transportation and storage of equipment shall comply with the relevant provisions of Chapter 6 of GB/T11318.1-1996. 365
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