A test stand for simultaneously measuring a plurality of anti-jamming satellite positioning devices

Abstract

This invention provides a test bracket for simultaneously measuring multiple anti-interference satellite positioning devices, including an adjustment base, a distance adjustment seat, and an interference source adjustment frame. The adjustment base includes an equipment mounting plate, a crossbeam mounting plate, and an adjustment seat. The distance adjustment seat includes a crossbeam and a first handwheel mounted on the crossbeam. The angle adjustment frame includes a column, a column fixing seat, an interference source antenna assembly for fixing the interference antenna, a second handwheel, a connector frame for inserting the crossbeam, and a motor for driving the interference source antenna assembly to move up and down along the column. This invention enables multi-scenario testing of anti-interference satellite positioning devices within a single device, eliminating the need for environmental setup for testing. This solution can perform up to six interference tests, with the interference antenna azimuth adjustable 360°, the interference antenna azimuth range adjustable from 5 to 10 meters, and the interference antenna elevation angle adjustable by ±40°, significantly reducing testing time and improving testing accuracy.

Description

Technical Field

[0001] This invention relates to the field of satellite communications, and in particular to a test stand capable of simultaneously measuring multiple anti-interference satellite positioning devices and with adjustable test angles. Background Technology

[0002] In the field of communications, satellite communications have unparalleled advantages over other existing communication methods, possessing the characteristic of full airspace coverage, and can achieve real-time communication, especially in areas such as deserts, oceans, and skies where base stations cannot be established.

[0003] However, ground-to-satellite communication is subject to numerous interferences, including natural and man-made interference. Therefore, when receiving satellite signals, it is crucial to avoid interference sources and determine the optimal signal reception angle. Existing ground-based satellite signal receiving and transmitting devices are mostly mounted on an adjustable-elevation bracket. In the military field, the anti-jamming capability of this bracket directly affects key operational indicators such as guidance accuracy, target acquisition and tracking capabilities, ballistic stability, and resistance to jamming. Therefore, anti-jamming testing of the bracket needs to be conducted from various angles, including different numbers of interference sources, their azimuth angles, elevation angles, and radiation ranges, to assess and verify whether the anti-jamming satellite positioning device can meet the technical specifications.

[0004] Existing support systems typically only allow for the installation of one ground satellite signal receiving device, resulting in slow testing progress and limiting measurements to one interference source at a time. Furthermore, they lack flexibility in terms of automation and angle adjustment. Summary of the Invention

[0005] The purpose of this invention is to provide a test stand that can simultaneously measure multiple anti-interference satellite positioning devices and has an adjustable test angle, so as to better test the anti-interference capability of anti-interference satellite positioning devices, reduce the test personnel's burden of setting up the test scene, and enhance the accuracy of the test scene and improve the efficiency of the test work.

[0006] Specifically, the present invention provides a test bracket for simultaneously measuring multiple anti-interference satellite positioning devices, including an adjustment base, a distance adjustment base, and an interference source adjustment bracket.

[0007] The adjustable base includes an equipment mounting plate, a crossbeam mounting plate, and an adjusting seat, which are installed sequentially from top to bottom. The equipment mounting plate is connected to the crossbeam mounting plate via an adjustable height lifting seat. The adjusting seat is fixedly connected to the crossbeam mounting plate. An adjusting angle for adjusting the level relative to the supporting surface is installed on the lower surface of the adjusting seat.

[0008] The distance adjustment seat includes a crossbeam fixed at one end to the crossbeam mounting plate, a first handwheel installed on the crossbeam for support and adjustment of the relative level of the support surface, and the axis of the crossbeam after installation is perpendicular to the axis of the crossbeam mounting plate.

[0009] The angle adjustment frame includes a column, a column mounting base for inserting the column, an interference source antenna assembly that is slidably fitted on the outer surface of the column for fixing the interference antenna, a second handwheel mounted on the column mounting base to support and adjust the horizontality relative to the support surface, a plug-in frame mounted on the lower surface of the column mounting base for inserting the crossbeam, and a motor for driving the interference source antenna assembly to move up and down along the column.

[0010] In one embodiment, handwheel positioning holes are uniformly arranged along the axial direction on the crossbeam.

[0011] In one embodiment, the lifting seat includes a disc for fixing the equipment mounting plate, an azimuth turntable for fixing the disc and being rotatable horizontally, and a first plug-in cylinder installed below the azimuth turntable.

[0012] The bracket fixing plate has a through hole at its center, and a second plug-in tube is installed in the through hole. The second plug-in tube is fixedly connected to the bracket fixing plate through a bottom sealing plate. The first plug-in tube and the second plug-in tube are plugged into each other and fixed in the installation position by locking bolts on the side of the second plug-in tube.

[0013] In one embodiment, the bracket fixing plate has a positioning hole for fixing the end of the crossbeam near the second plug-in cylinder, and adjustment holes corresponding to the positioning hole and evenly distributed within a defined range are formed on the bracket fixing plate away from the second plug-in cylinder.

[0014] In one embodiment, the first handwheel and the second handwheel each include a turntable, a caster wheel, and a screw connecting the two, and the second handwheel is symmetrically distributed on both sides of the column mounting base and forms a symmetrical arrangement with the first handwheel.

[0015] In one embodiment, the interference source antenna assembly includes a rectangular enclosure housing, a motor module mounted on one of the inner sides of the enclosure housing, two spring limiting modules mounted on the other three inner sides, and baffles extending toward the column provided at both ends of the opening of the enclosure housing.

[0016] In one embodiment, the motor module includes a motor, a friction wheel, and a motor mounting plate fixed to the inner surface of the enclosure housing. The motor is connected to the motor mounting plate via a first vertical plate, and the friction wheel is clamped and mounted on the motor mounting plate via two parallel second vertical plates. The motor is connected to one end of the friction wheel via a coupling.

[0017] In one embodiment, the spring limiting module includes a spring seat fixed to the enclosure housing, a U-shaped bearing seat connected to the spring seat by an adjusting bolt, a spring mounted on the adjusting bolt rod between the spring seat and the U-shaped bearing seat, and a bearing mounted in the opening of the U-shaped bearing seat by a pin, wherein the outer ring of the bearing protrudes from the surface of the U-shaped bearing seat after installation.

[0018] In one embodiment, the interference antenna is connected to the enclosure housing via an antenna adjustment module. The antenna adjustment module includes an antenna fixing plate that is vertically fixed to the outer surface of the enclosure housing and has a fan-shaped groove, an antenna rotating plate that is connected to the antenna fixing plate by passing through the fan-shaped groove with quick-tight screws, and an antenna connector that is connected to the antenna rotating plate. The interference antenna is fixed on the antenna connector.

[0019] In one embodiment, a sealing plate is provided at the top of the column.

[0020] This invention enables multi-scenario testing of anti-interference satellite positioning devices within a single device, eliminating the need for environmental setup. This solution can perform up to six interference tests, with 360° adjustment of the interference antenna's azimuth, a range of 5-10 meters, and ±40° adjustment of its elevation angle. For the frequently adjusted elevation angles of the interference antenna and the anti-interference satellite positioning device, automated adjustment is achieved, allowing for adjustments across the entire working angle from -20° to +60°, significantly reducing testing time and improving testing accuracy.

[0021] This solution facilitates the leveling and movement of the entire device by adjusting the ground angle and handwheel, reducing dependence on the external ground environment and improving the accuracy of the test scenario. By adjusting various angles at any time, the anti-interference performance of the anti-interference satellite positioning device can be tested more accurately, thereby ensuring a high degree of consistency in product performance during the large-scale production of the anti-interference satellite positioning device and greatly improving production efficiency.

[0022] By using a motor to drive the interference antenna to automatically descend, the consistency of the lifting and lowering height of multiple interference antennas can be ensured, thereby guaranteeing the elevation angle between the interference antenna and the anti-interference satellite positioning device, making the test environment conditions more accurate and the test more convenient and simple.

[0023] By adjusting the spring clamping force using the spring limit module, the friction of the polyurethane friction wheel is increased while ensuring that there is no gap between the wheel and the column. Without affecting the thrust of the friction wheel, the displacement of the entire interference source antenna assembly is constrained, preventing swaying during movement. This enhances the ability to resist environmental interference and prevents swaying caused by external wind, which would reduce the test accuracy.

[0024] Using handwheels as support components, the point-support method reduces dependence on the usage environment. The height can be adjusted to adapt to different ground shapes, while the casters at the bottom facilitate the movement and adjustment of the entire device, meeting the diverse needs of the usage environment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the test bracket structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the adjusting base structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure after the crossbeam is installed on the adjustable base;

[0028] Figure 4 This is a schematic diagram of the distance adjustment seat structure of the present invention;

[0029] Figure 5 Schematic diagram of the interference source adjustment seat structure of the present invention;

[0030] Figure 6 yes Figure 5 Schematic diagram of the central column fixing base;

[0031] Figure 7 This is a schematic diagram of the interference source antenna assembly structure of the present invention;

[0032] Figure 8 yes Figure 7 Top view;

[0033] Figure 9 This is a schematic diagram of the working status of the column on the antenna assembly of the interference source;

[0034] Figure 10 This is a schematic diagram of the motor module structure of the present invention;

[0035] Figure 11 This is a schematic diagram of the spring limiting module of the present invention. Detailed Implementation

[0036] The structure and working process of this solution will be further explained below through specific implementation methods and accompanying drawings.

[0037] like Figure 1 As shown, this solution discloses a test bracket for simultaneously measuring multiple anti-interference satellite positioning devices. The test bracket includes an adjustment base 1, a distance adjustment base 2, and an interference source adjustment frame 3, wherein:

[0038] like Figure 2 , 3As shown, the adjustment base 1 is the base of the entire test bracket. Various measuring components are installed on the adjustment base 1. The adjustment base 1 can also be moved arbitrarily to find a suitable test position. The adjustment base 1 specifically includes, from top to bottom, an equipment mounting plate 11, a crossbeam mounting plate 12, and an adjustment seat 13. The equipment mounting plate 11 is used to install corresponding receiving devices, such as antenna dishes, on its upper surface. The equipment mounting plate 11 is in a state where its height and angle are adjustable. It is connected to the crossbeam mounting plate 12 through a lifting seat 14 that can move in height and rotate within a 360° circumference. The adjustment seat 13 is fixedly installed on the lower surface of the crossbeam mounting plate 12 to provide stable support. It is also spaced a certain distance from the crossbeam mounting plate 12 to facilitate the operation of the crossbeam mounting plate 12. The adjustment seat 13 is a support platform with an area larger than the crossbeam mounting plate 12. An adjustment angle 15 relative to the ground is installed on its lower surface to adjust the levelness.

[0039] like Figure 4 As shown, the distance adjustment seat 2 is used to adjust the distance between the interference source adjustment frame 3 and the adjustment base (i.e., the equipment) 1. Specifically, it includes: a first handwheel 22 installed on the crossbeam 21, which is fixed at one end to the crossbeam mounting plate 12, to support and adjust the horizontality of the crossbeam 21 relative to the support surface. After installation, the axis of the crossbeam 21 is aligned with and perpendicular to the axis of the adjustment base 1. The length of the crossbeam 21 determines the farthest test distance of the interference source adjustment frame 3.

[0040] like Figure 5 , 6As shown, the interference source adjustment frame 3 is used to install the interference antenna 37 described below. The interference antenna 37 can be adjusted in height relative to the ground under motor control, and the pitch angle and orientation of the interference antenna 37 can be adjusted manually. Specifically, the interference source adjustment frame 3 includes a column 31, a column fixing seat 32 for inserting the column 31, an interference source antenna assembly 33 that is slidably fitted on the outer surface of the column 31 and has a motor 34 and interference antenna 37, a second handwheel 35 that is installed on the column fixing seat 32 to support it and adjust its level relative to the ground, and a plug-in frame 36 that is installed on the lower surface of the column fixing seat 32 to plug into the crossbeam 21. The column 31 is made of fiberglass square tubing, which is transparent and corrosion-resistant. The column mounting base 32 is also a rectangular square tubing, and the inserted column 31 is fixed to the side with bolts. A base plate 321 with an area larger than the column mounting base 32 is installed at the bottom of the column mounting base 32. Two second handwheels 35 are symmetrically installed on the base plate 321 to support the column mounting base 32, providing support while leveling it. When the crossbeam 21 is inserted into the insertion frame 36, the two second handwheels 35 and the crossbeam 21 form a triangle to limit and maintain the balance of the column mounting base 32. Furthermore, a protective cover 311 is installed at the top of the column 31 to close the opening at the top of the column 31. The protective cover 311 is not only waterproof and dustproof, but also prevents the antenna interference component 33 from detaching from the column 31 during lifting and lowering.

[0041] The specific work process is as follows:

[0042] The adjustment seat 13 is placed in the test position, the crossbeam mounting plate 12 is fixed on its upper surface, and the equipment mounting plate 11 is installed on the crossbeam mounting plate 12 through the lifting device 14. One end (fixed end) of the crossbeam 21 is fixed on the crossbeam mounting plate 12, and the other end (free end) of the crossbeam 21 extends away from the adjustment seat 13. The interference source adjustment frame 3 is inserted into the free end of the crossbeam 21 through the plug frame 36.

[0043] The horizontality of the adjustment seat 13 is adjusted by adjusting the ground angle 15, and the height and orientation angle of the equipment mounting plate 11 are adjusted by adjusting the lifting seat 14. The test distance of the interference source adjustment frame 3 on the crossbeam 21 is determined. The interference source antenna assembly 33 is moved on the column 31 by adjusting the motor to determine the dwell height. During the test, the pitch angle and orientation of the interference antenna 37 are manually adjusted. Thus, the installation of the entire test bracket is completed.

[0044] In this scheme, the number of crossbeams 21 can be 1 to 6, that is, a maximum of six interference antennas 37 can be tested. The position and measurement direction of each interference antenna 37 do not interfere with each other. In this scheme, the cross-sectional shape of the crossbeam 21 is rectangular and the length is 5 to 10 meters. In other embodiments, it can be set to a circular, elliptical, triangular or other cross-sectional shape as needed, and the length can also be adjusted.

[0045] Eight adjustable bases 15 are arranged symmetrically on the adjusting base 13. Each adjustable base 15 includes a support plate 151 in contact with the ground and a first adjusting bolt 152 connecting the support plate 151 and the adjusting base 13. The height at that point can be adjusted by the screwing length of the first adjusting bolt 152 relative to the adjusting base 13. After adjustment, the first adjusting bolt 152 is fixed by bolts located at both ends of the adjusting base 13 to prevent the first adjusting bolt 152 from loosening during the measurement process.

[0046] The crossbeam mounting plate 12 is fixedly mounted on the upper surface of the adjusting seat 13 by a plurality of symmetrically distributed support columns 121, and is at a certain distance from the adjusting seat 13. This distance facilitates the installation and adjustment of the position of the crossbeam 21. In this design, both the adjusting seat 13 and the crossbeam mounting plate 12 adopt a circular structure, and the diameter of the crossbeam mounting plate 12 is smaller than the diameter of the adjusting seat 13.

[0047] To facilitate the fixing of the crossbeam 21, multiple symmetrically distributed positioning holes 122 are provided on the crossbeam mounting plate 12 near the center. The number of positioning holes 122 is determined according to the maximum number of crossbeams 21 to be installed. In this scheme, the relative angle between the crossbeam 21 and the crossbeam mounting plate 12 is adjustable. Specifically, multiple angle swing holes 123 are provided on the side of each positioning hole 122 away from the center. For example, in this scheme, seven angle swing holes 123 are symmetrically distributed in a fan shape for each positioning hole 122, with a deviation of 10° between each angle swing hole 123. This structure allows the fixed end of the crossbeam 21 to be fixed to the positioning hole 122, and the free end can be arbitrarily selected from the seven angle swing holes 123 for fixing. This allows the angle of the interference antenna 37 installed on it to be adjusted within a range of ±30°, improving the range and flexibility during testing.

[0048] The lifting seat 14 in this solution includes three components, from top to bottom: a horizontally rotatable orientation turntable 141, a first insertion tube 142, and a second insertion tube 144. The first insertion tube 142 has a first sealing plate 143 installed at its upper opening and an opening at its lower end. The second insertion tube 144 has an opening at its upper end and a second sealing plate (not shown in the figure) installed at its lower opening. Three tightening bolts 145 are symmetrically installed on the upper side surface of the second insertion tube 144.

[0049] During installation, the upper surface of the azimuth turntable 141 is fixed to the equipment mounting frame 11 by eight hexagonal copper columns, and the lower surface is fixed to the first sealing plate 143 of the first plug-in cylinder 142 by bolts. The lower end of the first plug-in cylinder 142 is inserted into the upper opening of the second plug-in cylinder 144. A hole is made at the center of the crossbeam mounting plate 12. After the upper end of the second plug-in cylinder 144 passes through the hole at the center of the crossbeam mounting plate 12, its bottom second sealing plate is attached to the lower surface of the crossbeam mounting plate 12 and is simultaneously connected to the crossbeam mounting plate 12 and the support column 121 by bolts to improve stability.

[0050] The first connector 142 can be raised and lowered relative to the second connector 144 to adjust its height. After adjustment, the first connector 142 is fixed in place by three tightening bolts 145 on the side surface of the second connector 144. The azimuth turntable 141 can rotate horizontally relative to the first connector 142 and the equipment mounting plate 11 within a 360° range under the drive of the motor to adjust the orientation of the equipment.

[0051] To facilitate the installation of the first handwheel 22, multiple handwheel positioning holes 23 with internal threads are evenly arranged along the axial direction on the crossbeam 21. The first handwheel 22 can be inserted into the handwheel positioning hole 23 that best improves the support effect according to the position of the interference source adjustment frame 3 relative to the crossbeam 21.

[0052] The first handwheel 22 and the second handwheel 35 in this design have the same structure, each including a turntable 221, a caster wheel 222, and a screw 223 connecting the turntable 221 and the caster wheel 222. During adjustment, the turntable 221 rotates circumferentially to control the rotation of the adjusting screw 223 relative to the positioning hole 23, thereby controlling the raising and lowering of the adjusting screw 223. This allows the caster wheel 222 at the bottom to level the crossbeam 21 or the column fixing seat 32. The caster wheel 222 serves both as a support and provides movement support when the entire test bracket moves.

[0053] Furthermore, in other embodiments, to improve the support strength of the crossbeam 21, a third handwheel 24 can be provided at the end of the crossbeam 21 where the column fixing seat 32 is inserted. The third handwheel 24, in conjunction with the first handwheel 22, can better keep the crossbeam 21 horizontal and improve its support strength. When in conjunction with the second handwheel 35, it can provide a more stable support foundation for the column fixing seat 32.

[0054] like Figure 7 , 8 As shown in Figure 9, in one embodiment, the interference source antenna assembly 33 includes a rectangular enclosure housing 331, and a motor module 332 mounted on one of the inner sides of the enclosure housing 331, and two spring limiting modules 333 mounted on the other three inner sides respectively. The structure of each component is described in detail below:

[0055] The enclosure shell 331 is a rectangular structure with openings at the top and bottom. In each of the two openings, there are horizontally extending baffles 3311. The outer edge of the baffles 3311 is close to or near the outer surface of the column 31. The baffles 3311 can form a relatively closed space between the enclosure shell 331 and the column 31 to prevent external debris from entering the interior and affecting the sliding effect.

[0056] like Figure 10 As shown, the motor module 332 includes a motor 3321, a friction wheel 3322, and a motor mounting plate 3323. The motor 3321 is connected to the motor mounting plate 3323 via a first vertical plate 3324. The friction wheel 3322 is clamped on the motor mounting plate 3323 via two parallel second vertical plates 3325. The motor 3321 is connected to one end of the friction wheel 3322 via a coupling 3326.

[0057] like Figure 11 As shown, the spring limiting module 333 includes a spring seat 3331, a U-shaped bearing seat 3333 connected to the spring seat 3332 via a second adjusting bolt 3332, a spring 3334 mounted on the rod of the second adjusting bolt 3332 between the spring seat 3332 and the U-shaped bearing seat 3333, and a bearing 3336 mounted in the opening of the U-shaped bearing seat 3333 via a pin 3335. After installation, the outer ring of the bearing 3336 protrudes from the surface of the U-shaped bearing seat 3333.

[0058] The motor module 332 and the spring limiting module 333 are respectively mounted on the inner surface of the enclosure shell 331 via the motor fixing plate 3323 and the spring seat 3331. In this solution, six spring limiting modules 333 are provided and are respectively mounted on three inner sides of the enclosure shell 331 via the spring seat 3331. One motor module 332 is provided and is mounted on the inner side of the enclosure shell 331 via the motor fixing plate 3323. The horizontal positions of the motor module 332 and the spring limiting module 333 are kept consistent after installation, and the friction wheel 3322 and the bearing 3336 are respectively in contact with the column 31 to ensure that they can affect the column 31 at the same time.

[0059] During operation, the motor 3321 drives the friction wheel 3322 to rotate relative to the column 31, thereby causing the enclosure shell 331 to rise and fall relative to the column 31. The bearings 3336 of the spring limit module 333 contact the column 31 under the compression of the spring 3334, which improves the stability of movement and reduces the resistance relative to the column 31, ensuring the output accuracy of the motor 3321.

[0060] In one embodiment, the interference antenna 37 is connected to the enclosure housing 331 via the antenna adjustment module 4:

[0061] An antenna mounting plate 41 is vertically fixed to the outer surface of the enclosure shell 331. An antenna rotating plate 42 is connected to the antenna mounting plate 41 by quick-tight screws 43. An antenna connector 44 is connected to the antenna rotating plate 42. An interfering antenna 37 is fixed on the antenna connector 44.

[0062] The antenna mounting plate 41 is provided with a sector-shaped slot 45 through which quick-tightening screws 43 pass. The antenna rotating plate 42 can adjust the pitch angle within the sector-shaped slot 45 by using quick-tightening screws 43, thereby adjusting the pitch angle of the connected interference antenna 37. In this solution, the adjustable pitch angle is ±40°. The above structure not only facilitates installation but also allows for quick adjustment of the angle of the interference antenna 37.

[0063] In the aforementioned embodiments, the horizontal adjustment of the interference antenna 37 can be achieved by adjusting the installation position of the crossbeam 21, the vertical height is achieved by the enclosure housing 331 driven by the motor 3321, and the pitch angle is achieved by the antenna rotating plate 42. Therefore, the interference antenna 37 of this solution can be adjusted in three-dimensional space.

[0064] Through the aforementioned components and installation structure, this solution enables multi-scenario testing of the anti-interference satellite positioning device within a single device, eliminating the need for environmental setup for testing. This solution can perform up to six interference tests, with 360° adjustment of the interference antenna's azimuth, a range of 5-10 meters, and ±40° adjustment of its elevation angle. For the interference antenna and the elevation angle of the anti-interference satellite positioning device, which require frequent adjustments, automated adjustment is implemented, allowing for adjustments across the entire working angle from -20° to +60°, significantly reducing testing time and improving testing accuracy.

[0065] This solution facilitates the leveling and movement of the entire device by adjusting the ground angle and handwheel, reducing dependence on the external ground environment and improving the accuracy of the test scenario. By adjusting various angles at any time, the anti-interference performance of the anti-interference satellite positioning device can be tested more accurately, thereby ensuring a high degree of consistency in product performance during the large-scale production of the anti-interference satellite positioning device and greatly improving production efficiency.

[0066] By using a motor to drive the interference antenna to automatically descend, the consistency of the lifting and lowering height of multiple interference antennas can be ensured, thereby guaranteeing the elevation angle between the interference antenna and the anti-interference satellite positioning device, making the test environment conditions more accurate and the test more convenient and simple.

[0067] By adjusting the spring clamping force using the spring limit module, the friction of the polyurethane friction wheel is increased while ensuring that there is no gap between the wheel and the column. Without affecting the thrust of the friction wheel, the displacement of the entire interference source antenna assembly is constrained, preventing swaying during movement. This enhances the ability to resist environmental interference and prevents swaying caused by external wind, which would reduce the test accuracy.

[0068] Using handwheels as support components, the point-support method reduces dependence on the usage environment. The height can be adjusted to adapt to different ground shapes, while the casters at the bottom facilitate the movement and adjustment of the entire device, meeting the diverse needs of the usage environment.

[0069] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A test bracket for simultaneously measuring multiple anti-interference satellite positioning devices, comprising an adjustment base, a distance adjustment base, and an interference source adjustment bracket, characterized in that, The adjustable base includes an equipment mounting plate, a crossbeam mounting plate, and an adjusting seat, which are installed sequentially from top to bottom. The equipment mounting plate is connected to the crossbeam mounting plate via an adjustable height lifting seat. The adjusting seat is fixedly connected to the crossbeam mounting plate. An adjusting angle for adjusting the level relative to the supporting surface is installed on the lower surface of the adjusting seat. The distance adjustment seat includes a crossbeam fixed at one end to the crossbeam mounting plate, a first handwheel installed on the crossbeam for support and adjustment of the relative level of the support surface, and the axis of the crossbeam after installation is perpendicular to the axis of the crossbeam mounting plate. The angle adjustment frame includes a column, a column mounting base for inserting the column, an interference source antenna assembly that is slidably fitted on the outer surface of the column for fixing the interference antenna, a second handwheel mounted on the column mounting base to support and adjust the horizontality relative to the support surface, a plug-in frame mounted on the lower surface of the column mounting base for inserting the crossbeam, and a motor for driving the interference source antenna assembly to move up and down along the column.

2. The test bracket according to claim 1, characterized in that, Handwheel positioning holes are evenly arranged along the axial direction on the crossbeam.

3. The test bracket according to claim 1, characterized in that, The lifting seat includes a disc for fixing the equipment mounting plate, an azimuth turntable for fixing the disc and being able to rotate horizontally, and a first plug-in cylinder installed below the azimuth turntable. The bracket fixing plate has a through hole at its center, and a second plug-in tube is installed in the through hole. The second plug-in tube is fixedly connected to the bracket fixing plate through a bottom sealing plate. The first plug-in tube and the second plug-in tube are plugged into each other and fixed in the installation position by locking bolts on the side of the second plug-in tube.

4. The test bracket according to claim 3, characterized in that, The bracket fixing plate has a positioning hole for fixing the end of the crossbeam near the second plug-in cylinder, and adjustment holes corresponding to the positioning hole and evenly distributed within a limited range are opened on the bracket fixing plate away from the second plug-in cylinder.

5. The test bracket according to claim 1, characterized in that, The first handwheel and the second handwheel each include a turntable, a universal wheel and a screw connecting the two, and the second handwheel is symmetrically distributed on both sides of the column mounting base, forming a symmetrical arrangement with the first handwheel.

6. The test bracket according to claim 1, characterized in that, The interference source antenna assembly includes a rectangular enclosure shell, a motor module mounted on one of the inner sides of the enclosure shell, two spring limiting modules mounted on the other three inner sides, and baffles extending toward the column at both ends of the opening of the enclosure shell.

7. The test bracket according to claim 6, characterized in that, The motor module includes a motor, a friction wheel, and a motor mounting plate fixed to the inner surface of the enclosure shell. The motor is connected to the motor mounting plate via a first vertical plate, and the friction wheel is clamped and mounted on the motor mounting plate via two parallel second vertical plates. The motor is connected to one end of the friction wheel via a coupling.

8. The test bracket according to claim 6, characterized in that, The spring limiting module includes a spring seat fixed to the enclosure shell, a U-shaped bearing seat connected to the spring seat by an adjusting bolt, a spring mounted on the adjusting bolt rod between the spring seat and the U-shaped bearing seat, and a bearing mounted in the opening of the U-shaped bearing seat by a pin. After installation, the outer ring of the bearing protrudes from the surface of the U-shaped bearing seat.

9. The test bracket according to claim 6, characterized in that, The interference antenna is connected to the enclosure shell via an antenna adjustment module. The antenna adjustment module includes an antenna fixing plate that is vertically fixed to the outer surface of the enclosure shell and has a fan-shaped groove, an antenna rotating plate that is connected to the antenna fixing plate by passing through the fan-shaped groove with quick-tight screws, and an antenna connector that is connected to the antenna rotating plate. The interference antenna is fixed on the antenna connector.

10. The test bracket according to claim 1, characterized in that, A sealing plate is provided at the top of the column.

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