SJ 20801-2001 General specification for instantaneous frequency measurement receiver module
Some standard content:
Military standard of the electronics industry of the People's Republic of China FL5963
SJ20801—2001
General specification for
instantaneous frequency measurement receiver Published on 2001-12-27
Implementation on 2002-01-01
Approved by the Ministry of Information Industry of the People's Republic of China 2
Scope.
Referenced Documents
3 Requirements
4 Quality Assurance Provisions
5 Delivery Preparation..
Notes
Appendix A Defect Classification (Supplement)
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1 Scope
General Specification for
instantaneous forequency measurement receiver module, military standard of the People's Republic of China Electronic Industry
General specification for
instantaneous forequency measurement receiver1.1 Subject Content
SJ2080t—2001
This specification specifies the classification, requirements, quality assurance provisions and delivery preparation of digital instantaneous frequency measurement receiver modules (hereinafter referred to as receiver modules).
1.2 Scope of Application
This specification applies to the development, production and acceptance of instantaneous frequency measurement receiver modules. 2 References
GJB150.1-86 General Principles of Environmental Test Methods for Military Equipment GJB150.10-86 Environmental Test Methods for Military Equipment Fungal Test GJB151A-97 Requirements for Electromagnetic Emission and Sensitivity of Military Equipment and Subsystems GJB152A-97 Measurement of Electromagnetic Emission and Sensitivity of Military Equipment and Subsystems GJB179A-96 Procedures and Tables for Counting Sampling Inspection GJB899-90 Reliability Appraisal and Acceptance Test GJB1448-92 Ship Electrical Equipment General Specifications for Electronic Countermeasure Equipment GJB2087-94 Technical Parameters Test Methods for Digital Instantaneous Frequency Measurement Receivers GJB2225.2-94 General Technical Requirements for Ground Electronic Countermeasure Equipment Environmental Requirements GJB2396-95 General Specifications for Airborne Electronic Countermeasure Equipment GJBz20464-97 General Requirements for Marking, Packaging, Transportation and Storage of Electronic Countermeasure Equipment 3 Requirements
3.1 Qualification Appraisal
Products submitted in accordance with this specification shall be products that have passed appraisal or final approval. 3.2 Composition and Function
The receiver module consists of three basic functional units: the RF front end, the correlator component and the signal processing circuit. 3.2.1 RF front end
The function of the RF front end is to filter the input signal to ensure that only signals within the operating frequency range enter the receiver module and amplify these signals for back-end processing.
The Ministry of Information Industry of the People's Republic of China issued on December 27, 2001 and implemented on January 1, 2002
3.2.2 Correlator Component
SJ20801--2001
The function of the correlator component is to convert the frequency information of the signal into the amplitude information representing the frequency. 3.2.3 Signal Processing Circuit
The function of the signal processing circuit is to quantize and encode the amplitude information sent by the correlator component, and finally obtain the required frequency code.
Performance Parameters (See 4.6.1 to 4.6.9) 3.3
The main performance parameters of the receiver module are shown in Table 1. Table 1
Performance parameters
DIFM005010
DIFM010020
DIFM020040
DIFM040080
DIFM080120
DIFM120180
DIFM005020
DIFM020080
DIFM075180
DIFM020180
3.4 Dimensions
Operating frequency
12. 0~18.0
Unambiguous
Performance parameter requirements
Average frequency
Resolution
100~cw
100~cw
100~cw
100~cw
100~cw
100~cw
Working flexibility
The overall dimensions and installation dimensions of the receiver module for the working frequency band below 8GHz are shown in Figure 1, and the overall dimensions and installation dimensions of the receiver module for the working frequency band above 8GHz are shown in Figure 2.
3.5 Reliability
The lower limit value (e) of the mean time between failures MTBF of the receiver module shall not be less than 4000h. 3.6 Maintainability
The receiver modules included in this specification are field replaceable units, and their field replacement time shall not exceed 15 minutes. 3.7 Electromagnetic compatibility
3.7.1 The receiver module shall have good shielding, filtering and grounding. 3.7.2 RE102 and RS103 in GJB151A are applicable to this specification, and the limit values shall be taken according to Figures RE102-1~REI02-3 and Table 5 in GJB151A respectively.
3.8 Environmental adaptability
3.8.1 High temperature
The receiver modules for ground and ship use shall be able to operate normally after being subjected to the high temperature tests specified in Article 5.1.2 of GJB2225.2 and Article 3.10.1 of GJB1448 respectively.
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SJ20801--2001
By the mother of energy
Figure 1 Dimensions and installation dimensions of receiver modules in the working frequency band below 8 GHzUnit: mm
SJ20801-2001
Figure 2 Dimensions and installation dimensions of receiver modules in the working frequency band above 8 GHzikAoNiKAca
Unit, mm
3.8.2 Low temperature
SJ 20801--2001
Receiver modules for ground and ship use should be able to work normally after undergoing the low temperature tests specified in Article 5.2.2 of GJB2225.2 and Article 3.10.1 of GJB1448 respectively.
3.8.3 Vibration
After the ground, ship and airborne receiver modules are subjected to vibration according to the requirements of 5.6.2 of GJB2225.2, 3.10.6 of GJB1448 and 3.10.11 of GJB2396, they should be able to work normally. 3.8.4 Damp Heat
After the ground, ship and airborne receiver modules are subjected to the requirements of 5.3.2 of GJB2225.2, 3.10.8 of GJB1448 and 3.10.3 of GJB2396, there should be no obvious damage to the appearance quality and they should be able to work normally after natural recovery. 3.8.5 Temperature shock
The ground and airborne receiver modules shall be able to work normally after being tested in accordance with the requirements of Article 5.16.2 of GJB2225.2 and Article 3.10.2 of GJB2396 respectively.
3.8.6 Low pressure
The ground receiver module shall be able to work normally after being tested in accordance with the requirements of Article 5.8.2 of GJB2225.2. 3.8.7 Temperature-altitude
The airborne receiver module shall be able to work normally after being tested in accordance with the requirements of Article 3.10.1 of GJB2396. 3.8.8 Impact
After the ground, ship and airborne receiver modules have been subjected to the test requirements of 5.4.2 of GJB2225.2, 3.10.5 of GJB1448 and 3.10.12 of GJB2396, they should be able to work normally. When the test is over, the parts should not be broken, loose or fall off.
3.8.9 Salt spray
After the ground, ship and airborne receiver modules have been subjected to the test requirements of 5.12.2 of GJB2225.2, 3.10.9 of GJB1448 and 3.10.5 of GJB2396, there should be no obvious excessive corrosion that will hinder the electrical and mechanical performance, and they can work normally.
3.8.10 Mold
After ground, ship and airborne receiver modules have been subjected to the requirements of 5.11.2 of GJB2225.2, 3.10.8 of GJB1448 and 3.1043 of GJB2396 respectively, those with mold growth level 1 are qualified. 3.9 Interface requirements
3.9.1 The RF input interface of the receiver module adopts SMA-50KKF. 3.9.2 The power input interface of the receiver module adopts DB-9 rectangular socket. 3.9.3 The data output interface of the receiver module adopts DB-25 rectangular socket. 3.10 Interchangeability requirements
The receiver module should be able to work normally after the basic functional units with the same code are interchanged (fine-tuning is allowed). 3.11 Power adaptability
The voltage of the power supply of the receiver module changes by ±10%, and the module should be able to work normally. 3.12 Marking and code
3.12.1 Marking
The receiver module should be marked with the following:
a) Code or model, name:
b) Trademark or name of the manufacturing unit;
c) Output and input terminals should be marked: d) Production batch number or factory date.
3.12.2 Code
The code of the receiver module shall be as follows: DIFM
XXXXXX
SJ20801—2001
Upper frequency limit (expressed in 100 MHz)
Lower frequency limit (expressed in 100 MHz)
Instantaneous frequency measurement receiver module
Example: 2~4GHz instantaneous frequency measurement receiver module is expressed as: DIFM0200403.13 Appearance quality
The surface shall be free of cracks, bubbles, burrs and other defects that affect service life, usability or appearance. 4 Quality assurance provisions
4.1 Inspection responsibility
Unless otherwise specified in the product specification or contract, the contractor shall be responsible for completing all inspections specified in this specification. If necessary, the ordering party or the superior appraisal agency has the right to inspect any inspection item described in this specification. 4.1.1 Responsibility for Conformity
All products must meet all requirements of Chapter 3 and Chapter 5 of the specification. The inspections specified in this specification shall become an integral part of the contractor's overall inspection system or quality program. If the contract includes inspection requirements not specified in this specification, the contractor shall also ensure that the products submitted for acceptance meet the contract requirements. Quality consistency sampling does not allow the submission of products that are known to be defective, nor can the ordering party be required to accept defective products.
4.2 Inspection Classification
The inspection classification specified in this specification is as follows:
a) Authentication inspection;
b) Quality consistency inspection.
4.3 Inspection Conditions
Unless otherwise specified, all inspections shall be carried out under the conditions specified in Articles 3.1 to 3.4 of GJB150.1. 4.4 Authentication Inspection
Authentication inspection shall be carried out in a laboratory approved by the relevant competent authorities, and all sample units shall be products produced using equipment and processes commonly used in production.
4.4.1 Inspection Items
The receiver sample unit shall be subjected to the identification inspection specified in Table 2. 4.4.2 Qualification Criteria
When all inspection items meet the requirements of Chapter 3 and Chapter 5, the identification inspection is considered to be qualified. If any inspection item does not meet the specified requirements, the inspection shall be suspended. The contractor shall analyze the unqualified items, find out the causes of the defects and take corrective measures. The unqualified items and related items may be inspected. If all inspection items meet the specified requirements, the identification inspection is still considered to be qualified; if there is still an item that does not meet the specified requirements after the inspection is continued, the identification inspection is considered to be unqualified. 4.5 Quality Consistency Inspection
The quality consistency inspection consists of group A, C, and D inspections. 4.5.1 Inspection lot
An inspection lot shall consist of all receivers of the same type and structure produced under basically the same conditions and submitted for inspection at the same time. 4.5.2 Group A inspection
Group A inspection shall consist of the inspections specified in Table 2. 4.5.2.1 Sampling plan
The inspection level of Group A inspection shall be selected according to the general inspection level II specified in GJB179A. The acceptable quality level (AQL) shall be determined by negotiation between the contractor and the ordering party and specified in the product specification or contract. The provisions of major defects and minor defects shall comply with Appendix A (Supplement).
4.5.2.2 Qualification criteria
According to the inspection results, if the number of defects found is not greater than the qualified judgment number, the group A inspection of the batch is judged to be qualified: otherwise, the group A inspection of the batch is judged to be unqualified.
4.5.2.3 Handling of Nonconforming Products
For products that fail the Group A test, the contractor may return the batch to correct its defects or remove the defective products and resubmit for re-inspection. The resubmitted batch shall be inspected by stricter inspection. Such batches shall be separated from the newly inspected batches and clearly marked as "re-inspection batches".
4.5.3 Group C Test
Group C test shall consist of the test items specified in Table 2. 4.5.3.1 Sampling Plan
The sampling plan shall comply with the provisions of General Inspection Level 1I of GJB179A. The sample size shall be drawn from the inspection batch that has passed the Group A test according to the inspection batch size. The AQL value shall be determined by negotiation between the contractor and the ordering party and shall be specified in the product specification or contract. 4.5.3.2 Qualification Criteria
According to the inspection results, if the number of unqualified products found is not greater than the qualified judgment number, the batch of Group C inspection is judged to be qualified, otherwise the batch of Group C inspection is judged to be unqualified.
4.5.4 Group D Inspection
Group D inspection is only for reliability test. The test samples should be randomly selected from the samples that have passed the Group A and Group C inspections. The number of samples should be determined by the test plan.
4.5.4.1 Handling of sample units
Sample units that have been inspected by Group D are generally not delivered according to the contract or order. 4.5.5 Unqualified
If the sample fails the Group C or Group D inspection, the acceptance and delivery of the product should be stopped. The contractor should notify the qualified appraisal unit of the unqualified situation. After taking corrective measures, all tests or inspections should be carried out again according to the opinions of the qualified appraisal unit, or only the unqualified items should be tested or inspected. If the test is still unqualified, the unqualified situation should be notified to the qualified appraisal unit. 4.6 Inspection method
4.6.1 Operating frequency range
The test method of operating frequency range shall be carried out in accordance with the provisions of Article 5.10 of GJB2087. 4.6.2 Unambiguous bandwidth
SJ20801—2001
The test method of unambiguous bandwidth shall be carried out in accordance with the provisions of Article 5.1 of GJB2087. 4.6.3 Average frequency resolution
The test method of average frequency resolution shall be carried out in accordance with the provisions of Article 5.2 of GJB2087. 4.6.4 Frequency measurement error
The test method of frequency measurement error shall be carried out in accordance with the provisions of Article 5.3 of GJB2087. Table 2
Inspection items
Working frequency range
Unambiguous bandwidth
Average frequency resolution
Frequency measurement error
Working sensitivity
Dynamic range
Passing time
Recovery time
Working pulse width
Reliability
Maintainability
Electromagnetic compatibility
Temperature shock
Low pressure
Temperature-altitude
Interchangeability||tt ||Power adaptability
Sign and code
Appearance quality
29|Packaging
Identification inspection
Quality consistency inspection
Required
Chapter number
Inspection method
Chapter number
4.6.14.10
Indicates mandatory items, "○" indicates items that are required according to product specifications or contracts and different use platforms of modules Note: The symbol "" in the table
Optional items, "" indicates items that are not required. 8
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4.6.5Working sensitivity
SJ20801—2001
The working sensitivity test method shall be carried out in accordance with the provisions of Article 5.4 of GJB2087. 4.6.6 Dynamic range
The dynamic range test method shall be carried out in accordance with the provisions of Article 5.5 of GJB2087. 4.6.7 Passing time
The passing time test method shall be carried out in accordance with the provisions of Article 5.6 of GJB2087. 4.6.8 Recovery time
The recovery time test method shall be carried out in accordance with the provisions of Article 5.7 of GJB2087. 4.6.9 Working pulse width
The working pulse width test method shall be carried out in accordance with the provisions of Article 5.8 of GJB2087. 4.6.10 Dimensions and installation
Use measuring tools to measure the dimensions and installation dimensions of the receiver. 4.6.11 Reliability
The reliability test procedure shall be selected in accordance with the relevant provisions of GJB899. 4.6.12 Maintainability
When replacing on site, the time from the removal of the faulty receiver to the installation of the new receiver should not exceed 15 minutes.
4.6.13 Electromagnetic compatibility
The receiver module shall be tested in accordance with "Method RE102" and "Method RS103" in Chapter 5 of GJB152A. 4.6.14 Environmental test
The sequence of environmental tests shall generally be determined in accordance with Chapter 4 and Appendix A of GJB150.1 or the actual use requirements of the receiver module. 4.6.14.1 High temperature
The commercial temperature test of ground and ship receiver modules shall be carried out in accordance with Article 5.1.5 of GJB2225.2 and Article 4.7.8.2 of GJB1448. The initial test, intermediate test and final test of the receiver module shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.2 Low temperature
The low temperature test of ground and ship receiver modules shall be carried out in accordance with Article 5.2.5 of GJB2225.2 and Article 4.7.8.1 of GJB1448. The initial test, intermediate test and final test of the receiver module shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.3 Vibration
The vibration test of ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.6.5 of GJB2225.2, Article 4.7.8.7 of GJB1448 and Article 4.6.4.11 of GJB2396. The vibration condition is generally selected as random vibration. The final test shall check whether the parts are broken, loose or falling off, and test them in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.4 Damp Heat
The vibration test of ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.3.4 of GJB2225.2, Article 4.7.8.9 of GJB1448 and Article 4.6.4.3 of GJB2396. The final inspection shall check whether there is obvious damage on the appearance of the receiver module, and test in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.5 Temperature Shock
The vibration test of ground and airborne receiver modules shall be carried out in accordance with Article 5.16.4 of GJB2225.2 and Article 4.6.4.3 of GJB2396. The initial inspection and final inspection shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.6 Low pressure
SJ20801—2001
The low pressure test of ground receiver modules shall be carried out in accordance with Article 5.8.4 of GJB2225.2. The initial test and final test shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.7 Temperature-altitude
The temperature-altitude test is a comprehensive test under the actual use environment conditions of the airborne receiver module. If the test environment and equipment are limited, the corresponding high temperature, low temperature and low pressure single tests may be used. The temperature-altitude test of the airborne receiver module shall be carried out in accordance with Article 4.6.4.1 of GJB2396. The initial test and final test shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.8 Impact
The impact test of ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.4.5 of GJB2225.2, Article 4.7.8.6 of GJB1448 and Article 4.6.4.12 of GJB2396. The final test shall check whether the parts of the receiver module are broken, loose or falling off, and test them in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.9 Salt spray
The salt spray test of ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.12.4 of GJB2225.2, Article 4.7.8.11 of GJB1448 and Article 4.6.4.5 of GJB2396. The initial test and final test shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.10 Bacteria
Bacteria tests for ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.11.4 of GJB2225.2, Article 4.7.8.10 of GJB1448 and Article 4.6.4.4 of GJB2396. The final test shall be carried out in accordance with Article 4.3 of GJB150.10. 4.6.15 Interface requirements
Inspect the interfaces of the receiver module in accordance with the relevant product specifications or design documents. 4.6.16 Interchangeability
Randomly select 2 to 3 basic functional units in the receiver module and replace them one by one in the receiver module. Only minor adjustments are required, and the receiver module should be able to meet the performance index requirements. 4.6.17 Power adaptability
After changing the voltage value of the power supply output of the receiver module by ±10%, test the receiver module according to 4.6.4, 4.6.5 and 4.6.6. It should meet the index requirements.
4.6.18 Marking and code
Inspect by visual inspection according to 3.9.
4.6.19 Appearance qualitywww.bzxz.net
Inspect the appearance quality of the receiver module by visual inspection to see if it meets the requirements of 3.10. 4.6.20 Packaging inspection
The inspection method of the receiver module packaging can refer to Appendix B of GJBz20464 and shall be stipulated by the product specifications. .5 Delivery preparation
5.1 Packaging
The packaging of the receiver module shall meet the requirements of Chapter 5 of GJBz20464. 5.2 Marking
The marking of the receiver module shall comply with the requirements of Chapter 4 of GJBz20464. 5.3 Transportation and Storage
The transportation and storage of the receiver module shall comply with the requirements of Chapter 6 and Chapter 7 of GJBz20464 respectively. 10
HITKAONiKAca-7 Temperature-Altitude
The temperature-altitude test is a comprehensive test under the actual use environment conditions of the airborne receiver module. If the test environment equipment is limited, the corresponding high temperature, low temperature and low pressure single tests can be used. The temperature-altitude test of the airborne receiver module shall be carried out in accordance with Article 4.6.4.1 of GJB2396. The initial test and final test shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.8 Shock
The shock test of the ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.4.5 of GJB2225.2, Article 4.7.8.6 of GJB1448 and Article 4.6.4.12 of GJB2396 respectively. The final test shall check whether the parts of the receiver module are broken, loose or falling off, and shall be tested in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.9 Salt spray
The salt spray test of ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.12.4 of GJB2225.2, Article 4.7.8.11 of GJB1448 and Article 4.6.4.5 of GJB2396. The initial test and final test shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.10 Bacteria
The bacteria test of ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.11.4 of GJB2225.2, Article 4.7.8.10 of GJB1448 and Article 4.6.4.4 of GJB2396. The final test shall be carried out in accordance with Article 4.3 of GJB150.10. 4.6.15 Interface requirements
Check the interfaces of the receiver module against the relevant product specifications or design documents. 4.6.16 Interchangeability
Randomly select 2 to 3 basic functional units in the receiver module and replace them one by one into the receiver module. Only fine-tuning is required. The receiver module should be able to meet the performance index requirements. 4.6.17 Power adaptability
After changing the voltage value output by the power supply of the receiver module by ±10%, test the receiver module according to 4.6.4, 4.6.5, and 4.6.6. It should be able to meet the index requirements.
4.6.18 Marking and code
Use visual inspection to check according to 3.9.
4.6.19 Appearance quality
Use visual inspection to check whether the appearance quality of the receiver module meets the requirements of 3.10. 4.6.20 Packaging Inspection
The inspection method for the receiver module packaging can refer to Appendix B of GJBz20464 and is specified by the product specifications. .5 Delivery Preparation
5.1 Packaging
The packaging of the receiver module shall comply with the requirements of Chapter 5 of GJBz20464. 5.2 Marking
The marking of the receiver module shall comply with the requirements of Chapter 4 of GJBz20464. 5.3 Transportation and Storage
The transportation and storage of the receiver module shall comply with the requirements of Chapter 6 and Chapter 7 of GJBz20464 respectively. 10
HITKAONiKAca-7 Temperature-Altitude
The temperature-altitude test is a comprehensive test under the actual use environment conditions of the airborne receiver module. If the test environment equipment is limited, the corresponding high temperature, low temperature and low pressure single tests can be used. The temperature-altitude test of the airborne receiver module shall be carried out in accordance with Article 4.6.4.1 of GJB2396. The initial test and final test shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.8 Shock
The shock test of the ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.4.5 of GJB2225.2, Article 4.7.8.6 of GJB1448 and Article 4.6.4.12 of GJB2396 respectively. The final test shall check whether the parts of the receiver module are broken, loose or falling off, and shall be tested in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.9 Salt spray
The salt spray test of ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.12.4 of GJB2225.2, Article 4.7.8.11 of GJB1448 and Article 4.6.4.5 of GJB2396. The initial test and final test shall be carried out in accordance with Articles 4.6.4, 4.6.5 and 4.6.6. 4.6.14.10 Bacteria
The bacteria test of ground, ship and airborne receiver modules shall be carried out in accordance with Article 5.11.4 of GJB2225.2, Article 4.7.8.10 of GJB1448 and Article 4.6.4.4 of GJB2396. The final test shall be carried out in accordance with Article 4.3 of GJB150.10. 4.6.15 Interface requirements
Check the interfaces of the receiver module against the relevant product specifications or design documents. 4.6.16 Interchangeability
Randomly select 2 to 3 basic functional units in the receiver module and replace them one by one into the receiver module. Only fine-tuning is required. The receiver module should be able to meet the performance index requirements. 4.6.17 Power adaptability
After changing the voltage value output by the power supply of the receiver module by ±10%, test the receiver module according to 4.6.4, 4.6.5, and 4.6.6. It should be able to meet the index requirements.
4.6.18 Marking and code
Use visual inspection to check according to 3.9.
4.6.19 Appearance quality
Use visual inspection to check whether the appearance quality of the receiver module meets the requirements of 3.10. 4.6.20 Packaging Inspection
The inspection method for the receiver module packaging can refer to Appendix B of GJBz20464 and is specified by the product specifications. .5 Delivery Preparation
5.1 Packaging
The packaging of the receiver module shall comply with the requirements of Chapter 5 of GJBz20464. 5.2 Marking
The marking of the receiver module shall comply with the requirements of Chapter 4 of GJBz20464. 5.3 Transportation and Storage
The transportation and storage of the receiver module shall comply with the requirements of Chapter 6 and Chapter 7 of GJBz20464 respectively. 10
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