Table of Contents 1 Research Methodology and Statistical Scope 1.1 Market Definition and Statistical Scope of TDR Impedance Test System 1.2 Key Market Segments 1.2.1 TDR Impedance Test System Segment by Type 1.2.2 TDR Impedance Test System Segment by Application 1.3 Methodology & Sources of Information 1.3.1 Research Methodology 1.3.2 Research Process 1.3.3 Market Breakdown and Data Triangulation 1.3.4 Base Year 1.3.5 Report Assumptions & Caveats 2 TDR Impedance Test System Market Overview 2.1 Global Market Overview 2.1.1 Global TDR Impedance Test System Market Size (M USD) Estimates and Forecasts (2019-2030) 2.1.2 Global TDR Impedance Test System Sales Estimates and Forecasts (2019-2030) 2.2 Market Segment Executive Summary 2.3 Global Market Size by Region 3 TDR Impedance Test System Market Competitive Landscape 3.1 Global TDR Impedance Test System Sales by Manufacturers (2019-2024) 3.2 Global TDR Impedance Test System Revenue Market Share by Manufacturers (2019-2024) 3.3 TDR Impedance Test System Market Share by Company Type (Tier 1, Tier 2, and Tier 3) 3.4 Global TDR Impedance Test System Average Price by Manufacturers (2019-2024) 3.5 Manufacturers TDR Impedance Test System Sales Sites, Area Served, Product Type 3.6 TDR Impedance Test System Market Competitive Situation and Trends 3.6.1 TDR Impedance Test System Market Concentration Rate 3.6.2 Global 5 and 10 Largest TDR Impedance Test System Players Market Share by Revenue 3.6.3 Mergers & Acquisitions, Expansion 4 TDR Impedance Test System Industry Chain Analysis 4.1 TDR Impedance Test System Industry Chain Analysis 4.2 Market Overview of Key Raw Materials 4.3 Midstream Market Analysis 4.4 Downstream Customer Analysis 5 The Development and Dynamics of TDR Impedance Test System Market 5.1 Key Development Trends 5.2 Driving Factors 5.3 Market Challenges 5.4 Market Restraints 5.5 Industry News 5.5.1 New Product Developments 5.5.2 Mergers & Acquisitions 5.5.3 Expansions 5.5.4 Collaboration/Supply Contracts 5.6 Industry Policies 6 TDR Impedance Test System Market Segmentation by Type 6.1 Evaluation Matrix of Segment Market Development Potential (Type) 6.2 Global TDR Impedance Test System Sales Market Share by Type (2019-2024) 6.3 Global TDR Impedance Test System Market Size Market Share by Type (2019-2024) 6.4 Global TDR Impedance Test System Price by Type (2019-2024) 7 TDR Impedance Test System Market Segmentation by Application 7.1 Evaluation Matrix of Segment Market Development Potential (Application) 7.2 Global TDR Impedance Test System Market Sales by Application (2019-2024) 7.3 Global TDR Impedance Test System Market Size (M USD) by Application (2019-2024) 7.4 Global TDR Impedance Test System Sales Growth Rate by Application (2019-2024) 8 TDR Impedance Test System Market Segmentation by Region 8.1 Global TDR Impedance Test System Sales by Region 8.1.1 Global TDR Impedance Test System Sales by Region 8.1.2 Global TDR Impedance Test System Sales Market Share by Region 8.2 North America 8.2.1 North America TDR Impedance Test System Sales by Country 8.2.2 U.S. 8.2.3 Canada 8.2.4 Mexico 8.3 Europe 8.3.1 Europe TDR Impedance Test System Sales by Country 8.3.2 Germany 8.3.3 France 8.3.4 U.K. 8.3.5 Italy 8.3.6 Russia 8.4 Asia Pacific 8.4.1 Asia Pacific TDR Impedance Test System Sales by Region 8.4.2 China 8.4.3 Japan 8.4.4 South Korea 8.4.5 India 8.4.6 Southeast Asia 8.5 South America 8.5.1 South America TDR Impedance Test System Sales by Country 8.5.2 Brazil 8.5.3 Argentina 8.5.4 Columbia 8.6 Middle East and Africa 8.6.1 Middle East and Africa TDR Impedance Test System Sales by Region 8.6.2 Saudi Arabia 8.6.3 UAE 8.6.4 Egypt 8.6.5 Nigeria 8.6.6 South Africa 9 Key Companies Profile 9.1 Polar Instruments 9.1.1 Polar Instruments TDR Impedance Test System Basic Information 9.1.2 Polar Instruments TDR Impedance Test System Product Overview 9.1.3 Polar Instruments TDR Impedance Test System Product Market Performance 9.1.4 Polar Instruments Business Overview 9.1.5 Polar Instruments TDR Impedance Test System SWOT Analysis 9.1.6 Polar Instruments Recent Developments 9.2 MicroCraft 9.2.1 MicroCraft TDR Impedance Test System Basic Information 9.2.2 MicroCraft TDR Impedance Test System Product Overview 9.2.3 MicroCraft TDR Impedance Test System Product Market Performance 9.2.4 MicroCraft Business Overview 9.2.5 MicroCraft TDR Impedance Test System SWOT Analysis 9.2.6 MicroCraft Recent Developments 9.3 Saluki Technology 9.3.1 Saluki Technology TDR Impedance Test System Basic Information 9.3.2 Saluki Technology TDR Impedance Test System Product Overview 9.3.3 Saluki Technology TDR Impedance Test System Product Market Performance 9.3.4 Saluki Technology TDR Impedance Test System SWOT Analysis 9.3.5 Saluki Technology Business Overview 9.3.6 Saluki Technology Recent Developments 9.4 Keysight 9.4.1 Keysight TDR Impedance Test System Basic Information 9.4.2 Keysight TDR Impedance Test System Product Overview 9.4.3 Keysight TDR Impedance Test System Product Market Performance 9.4.4 Keysight Business Overview 9.4.5 Keysight Recent Developments 9.5 Zmetrix 9.5.1 Zmetrix TDR Impedance Test System Basic Information 9.5.2 Zmetrix TDR Impedance Test System Product Overview 9.5.3 Zmetrix TDR Impedance Test System Product Market Performance 9.5.4 Zmetrix Business Overview 9.5.5 Zmetrix Recent Developments 9.6 Viavi Solutions 9.6.1 Viavi Solutions TDR Impedance Test System Basic Information 9.6.2 Viavi Solutions TDR Impedance Test System Product Overview 9.6.3 Viavi Solutions TDR Impedance Test System Product Market Performance 9.6.4 Viavi Solutions Business Overview 9.6.5 Viavi Solutions Recent Developments 9.7 Southwest Microwave 9.7.1 Southwest Microwave TDR Impedance Test System Basic Information 9.7.2 Southwest Microwave TDR Impedance Test System Product Overview 9.7.3 Southwest Microwave TDR Impedance Test System Product Market Performance 9.7.4 Southwest Microwave Business Overview 9.7.5 Southwest Microwave Recent Developments 9.8 MOHR Test and Measurement 9.8.1 MOHR Test and Measurement TDR Impedance Test System Basic Information 9.8.2 MOHR Test and Measurement TDR Impedance Test System Product Overview 9.8.3 MOHR Test and Measurement TDR Impedance Test System Product Market Performance 9.8.4 MOHR Test and Measurement Business Overview 9.8.5 MOHR Test and Measurement Recent Developments 9.9 Teledyne LeCroy 9.9.1 Teledyne LeCroy TDR Impedance Test System Basic Information 9.9.2 Teledyne LeCroy TDR Impedance Test System Product Overview 9.9.3 Teledyne LeCroy TDR Impedance Test System Product Market Performance 9.9.4 Teledyne LeCroy Business Overview 9.9.5 Teledyne LeCroy Recent Developments 9.10 Guangdong Zhengye Technology 9.10.1 Guangdong Zhengye Technology TDR Impedance Test System Basic Information 9.10.2 Guangdong Zhengye Technology TDR Impedance Test System Product Overview 9.10.3 Guangdong Zhengye Technology TDR Impedance Test System Product Market Performance 9.10.4 Guangdong Zhengye Technology Business Overview 9.10.5 Guangdong Zhengye Technology Recent Developments 9.11 Rohde and Schwarz 9.11.1 Rohde and Schwarz TDR Impedance Test System Basic Information 9.11.2 Rohde and Schwarz TDR Impedance Test System Product Overview 9.11.3 Rohde and Schwarz TDR Impedance Test System Product Market Performance 9.11.4 Rohde and Schwarz Business Overview 9.11.5 Rohde and Schwarz Recent Developments 10 TDR Impedance Test System Market Forecast by Region 10.1 Global TDR Impedance Test System Market Size Forecast 10.2 Global TDR Impedance Test System Market Forecast by Region 10.2.1 North America Market Size Forecast by Country 10.2.2 Europe TDR Impedance Test System Market Size Forecast by Country 10.2.3 Asia Pacific TDR Impedance Test System Market Size Forecast by Region 10.2.4 South America TDR Impedance Test System Market Size Forecast by Country 10.2.5 Middle East and Africa Forecasted Consumption of TDR Impedance Test System by Country 11 Forecast Market by Type and by Application (2025-2030) 11.1 Global TDR Impedance Test System Market Forecast by Type (2025-2030) 11.1.1 Global Forecasted Sales of TDR Impedance Test System by Type (2025-2030) 11.1.2 Global TDR Impedance Test System Market Size Forecast by Type (2025-2030) 11.1.3 Global Forecasted Price of TDR Impedance Test System by Type (2025-2030) 11.2 Global TDR Impedance Test System Market Forecast by Application (2025-2030) 11.2.1 Global TDR Impedance Test System Sales (K Units) Forecast by Application 11.2.2 Global TDR Impedance Test System Market Size (M USD) Forecast by Application (2025-2030) 12 Conclusion and Key Findings

List of Tables Table 1. Introduction of the Type Table 2. Introduction of the Application Table 3. Market Size (M USD) Segment Executive Summary Table 4. TDR Impedance Test System Market Size Comparison by Region (M USD) Table 5. Global TDR Impedance Test System Sales (K Units) by Manufacturers (2019-2024) Table 6. Global TDR Impedance Test System Sales Market Share by Manufacturers (2019-2024) Table 7. Global TDR Impedance Test System Revenue (M USD) by Manufacturers (2019-2024) Table 8. Global TDR Impedance Test System Revenue Share by Manufacturers (2019-2024) Table 9. Company Type (Tier 1, Tier 2, and Tier 3) & (based on the Revenue in TDR Impedance Test System as of 2022) Table 10. Global Market TDR Impedance Test System Average Price (USD/Unit) of Key Manufacturers (2019-2024) Table 11. Manufacturers TDR Impedance Test System Sales Sites and Area Served Table 12. Manufacturers TDR Impedance Test System Product Type Table 13. Global TDR Impedance Test System Manufacturers Market Concentration Ratio (CR5 and HHI) Table 14. Mergers & Acquisitions, Expansion Plans Table 15. Industry Chain Map of TDR Impedance Test System Table 16. Market Overview of Key Raw Materials Table 17. Midstream Market Analysis Table 18. Downstream Customer Analysis Table 19. Key Development Trends Table 20. Driving Factors Table 21. TDR Impedance Test System Market Challenges Table 22. Global TDR Impedance Test System Sales by Type (K Units) Table 23. Global TDR Impedance Test System Market Size by Type (M USD) Table 24. Global TDR Impedance Test System Sales (K Units) by Type (2019-2024) Table 25. Global TDR Impedance Test System Sales Market Share by Type (2019-2024) Table 26. Global TDR Impedance Test System Market Size (M USD) by Type (2019-2024) Table 27. Global TDR Impedance Test System Market Size Share by Type (2019-2024) Table 28. Global TDR Impedance Test System Price (USD/Unit) by Type (2019-2024) Table 29. Global TDR Impedance Test System Sales (K Units) by Application Table 30. Global TDR Impedance Test System Market Size by Application Table 31. Global TDR Impedance Test System Sales by Application (2019-2024) & (K Units) Table 32. Global TDR Impedance Test System Sales Market Share by Application (2019-2024) Table 33. Global TDR Impedance Test System Sales by Application (2019-2024) & (M USD) Table 34. Global TDR Impedance Test System Market Share by Application (2019-2024) Table 35. Global TDR Impedance Test System Sales Growth Rate by Application (2019-2024) Table 36. Global TDR Impedance Test System Sales by Region (2019-2024) & (K Units) Table 37. Global TDR Impedance Test System Sales Market Share by Region (2019-2024) Table 38. North America TDR Impedance Test System Sales by Country (2019-2024) & (K Units) Table 39. Europe TDR Impedance Test System Sales by Country (2019-2024) & (K Units) Table 40. Asia Pacific TDR Impedance Test System Sales by Region (2019-2024) & (K Units) Table 41. South America TDR Impedance Test System Sales by Country (2019-2024) & (K Units) Table 42. Middle East and Africa TDR Impedance Test System Sales by Region (2019-2024) & (K Units) Table 43. Polar Instruments TDR Impedance Test System Basic Information Table 44. Polar Instruments TDR Impedance Test System Product Overview Table 45. Polar Instruments TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 46. Polar Instruments Business Overview Table 47. Polar Instruments TDR Impedance Test System SWOT Analysis Table 48. Polar Instruments Recent Developments Table 49. MicroCraft TDR Impedance Test System Basic Information Table 50. MicroCraft TDR Impedance Test System Product Overview Table 51. MicroCraft TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 52. MicroCraft Business Overview Table 53. MicroCraft TDR Impedance Test System SWOT Analysis Table 54. MicroCraft Recent Developments Table 55. Saluki Technology TDR Impedance Test System Basic Information Table 56. Saluki Technology TDR Impedance Test System Product Overview Table 57. Saluki Technology TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 58. Saluki Technology TDR Impedance Test System SWOT Analysis Table 59. Saluki Technology Business Overview Table 60. Saluki Technology Recent Developments Table 61. Keysight TDR Impedance Test System Basic Information Table 62. Keysight TDR Impedance Test System Product Overview Table 63. Keysight TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 64. Keysight Business Overview Table 65. Keysight Recent Developments Table 66. Zmetrix TDR Impedance Test System Basic Information Table 67. Zmetrix TDR Impedance Test System Product Overview Table 68. Zmetrix TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 69. Zmetrix Business Overview Table 70. Zmetrix Recent Developments Table 71. Viavi Solutions TDR Impedance Test System Basic Information Table 72. Viavi Solutions TDR Impedance Test System Product Overview Table 73. Viavi Solutions TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 74. Viavi Solutions Business Overview Table 75. Viavi Solutions Recent Developments Table 76. Southwest Microwave TDR Impedance Test System Basic Information Table 77. Southwest Microwave TDR Impedance Test System Product Overview Table 78. Southwest Microwave TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 79. Southwest Microwave Business Overview Table 80. Southwest Microwave Recent Developments Table 81. MOHR Test and Measurement TDR Impedance Test System Basic Information Table 82. MOHR Test and Measurement TDR Impedance Test System Product Overview Table 83. MOHR Test and Measurement TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 84. MOHR Test and Measurement Business Overview Table 85. MOHR Test and Measurement Recent Developments Table 86. Teledyne LeCroy TDR Impedance Test System Basic Information Table 87. Teledyne LeCroy TDR Impedance Test System Product Overview Table 88. Teledyne LeCroy TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 89. Teledyne LeCroy Business Overview Table 90. Teledyne LeCroy Recent Developments Table 91. Guangdong Zhengye Technology TDR Impedance Test System Basic Information Table 92. Guangdong Zhengye Technology TDR Impedance Test System Product Overview Table 93. Guangdong Zhengye Technology TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 94. Guangdong Zhengye Technology Business Overview Table 95. Guangdong Zhengye Technology Recent Developments Table 96. Rohde and Schwarz TDR Impedance Test System Basic Information Table 97. Rohde and Schwarz TDR Impedance Test System Product Overview Table 98. Rohde and Schwarz TDR Impedance Test System Sales (K Units), Revenue (M USD), Price (USD/Unit) and Gross Margin (2019-2024) Table 99. Rohde and Schwarz Business Overview Table 100. Rohde and Schwarz Recent Developments Table 101. Global TDR Impedance Test System Sales Forecast by Region (2025-2030) & (K Units) Table 102. Global TDR Impedance Test System Market Size Forecast by Region (2025-2030) & (M USD) Table 103. North America TDR Impedance Test System Sales Forecast by Country (2025-2030) & (K Units) Table 104. North America TDR Impedance Test System Market Size Forecast by Country (2025-2030) & (M USD) Table 105. Europe TDR Impedance Test System Sales Forecast by Country (2025-2030) & (K Units) Table 106. Europe TDR Impedance Test System Market Size Forecast by Country (2025-2030) & (M USD) Table 107. Asia Pacific TDR Impedance Test System Sales Forecast by Region (2025-2030) & (K Units) Table 108. Asia Pacific TDR Impedance Test System Market Size Forecast by Region (2025-2030) & (M USD) Table 109. South America TDR Impedance Test System Sales Forecast by Country (2025-2030) & (K Units) Table 110. South America TDR Impedance Test System Market Size Forecast by Country (2025-2030) & (M USD) Table 111. Middle East and Africa TDR Impedance Test System Consumption Forecast by Country (2025-2030) & (Units) Table 112. Middle East and Africa TDR Impedance Test System Market Size Forecast by Country (2025-2030) & (M USD) Table 113. Global TDR Impedance Test System Sales Forecast by Type (2025-2030) & (K Units) Table 114. Global TDR Impedance Test System Market Size Forecast by Type (2025-2030) & (M USD) Table 115. Global TDR Impedance Test System Price Forecast by Type (2025-2030) & (USD/Unit) Table 116. Global TDR Impedance Test System Sales (K Units) Forecast by Application (2025-2030) Table 117. Global TDR Impedance Test System Market Size Forecast by Application (2025-2030) & (M USD) List of Figures Figure 1. Product Picture of TDR Impedance Test System Figure 2. Data Triangulation Figure 3. Key Caveats Figure 4. Global TDR Impedance Test System Market Size (M USD), 2019-2030 Figure 5. Global TDR Impedance Test System Market Size (M USD) (2019-2030) Figure 6. Global TDR Impedance Test System Sales (K Units) & (2019-2030) Figure 7. Evaluation Matrix of Segment Market Development Potential (Type) Figure 8. Evaluation Matrix of Segment Market Development Potential (Application) Figure 9. Evaluation Matrix of Regional Market Development Potential Figure 10. TDR Impedance Test System Market Size by Country (M USD) Figure 11. TDR Impedance Test System Sales Share by Manufacturers in 2023 Figure 12. Global TDR Impedance Test System Revenue Share by Manufacturers in 2023 Figure 13. TDR Impedance Test System Market Share by Company Type (Tier 1, Tier 2 and Tier 3): 2023 Figure 14. Global Market TDR Impedance Test System Average Price (USD/Unit) of Key Manufacturers in 2023 Figure 15. The Global 5 and 10 Largest Players: Market Share by TDR Impedance Test System Revenue in 2023 Figure 16. Evaluation Matrix of Segment Market Development Potential (Type) Figure 17. Global TDR Impedance Test System Market Share by Type Figure 18. Sales Market Share of TDR Impedance Test System by Type (2019-2024) Figure 19. Sales Market Share of TDR Impedance Test System by Type in 2023 Figure 20. Market Size Share of TDR Impedance Test System by Type (2019-2024) Figure 21. Market Size Market Share of TDR Impedance Test System by Type in 2023 Figure 22. Evaluation Matrix of Segment Market Development Potential (Application) Figure 23. Global TDR Impedance Test System Market Share by Application Figure 24. Global TDR Impedance Test System Sales Market Share by Application (2019-2024) Figure 25. Global TDR Impedance Test System Sales Market Share by Application in 2023 Figure 26. Global TDR Impedance Test System Market Share by Application (2019-2024) Figure 27. Global TDR Impedance Test System Market Share by Application in 2023 Figure 28. Global TDR Impedance Test System Sales Growth Rate by Application (2019-2024) Figure 29. Global TDR Impedance Test System Sales Market Share by Region (2019-2024) Figure 30. North America TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 31. North America TDR Impedance Test System Sales Market Share by Country in 2023 Figure 32. U.S. TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 33. Canada TDR Impedance Test System Sales (K Units) and Growth Rate (2019-2024) Figure 34. Mexico TDR Impedance Test System Sales (Units) and Growth Rate (2019-2024) Figure 35. Europe TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 36. Europe TDR Impedance Test System Sales Market Share by Country in 2023 Figure 37. Germany TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 38. France TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 39. U.K. TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 40. Italy TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 41. Russia TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 42. Asia Pacific TDR Impedance Test System Sales and Growth Rate (K Units) Figure 43. Asia Pacific TDR Impedance Test System Sales Market Share by Region in 2023 Figure 44. China TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 45. Japan TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 46. South Korea TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 47. India TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 48. Southeast Asia TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 49. South America TDR Impedance Test System Sales and Growth Rate (K Units) Figure 50. South America TDR Impedance Test System Sales Market Share by Country in 2023 Figure 51. Brazil TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 52. Argentina TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 53. Columbia TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 54. Middle East and Africa TDR Impedance Test System Sales and Growth Rate (K Units) Figure 55. Middle East and Africa TDR Impedance Test System Sales Market Share by Region in 2023 Figure 56. Saudi Arabia TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 57. UAE TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 58. Egypt TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 59. Nigeria TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 60. South Africa TDR Impedance Test System Sales and Growth Rate (2019-2024) & (K Units) Figure 61. Global TDR Impedance Test System Sales Forecast by Volume (2019-2030) & (K Units) Figure 62. Global TDR Impedance Test System Market Size Forecast by Value (2019-2030) & (M USD) Figure 63. Global TDR Impedance Test System Sales Market Share Forecast by Type (2025-2030) Figure 64. Global TDR Impedance Test System Market Share Forecast by Type (2025-2030) Figure 65. Global TDR Impedance Test System Sales Forecast by Application (2025-2030) Figure 66. Global TDR Impedance Test System Market Share Forecast by Application (2025-2030)

Polar Instruments MicroCraft Saluki Technology Keysight Zmetrix Viavi Solutions Southwest Microwave MOHR Test and Measurement Teledyne LeCroy Guangdong Zhengye Technology Rohde & Schwarz