Spectrum Analyzer Performance Verification 3-7 Input Related Spurious (IRS) Signals
MS20xxC MM PN: 10580-00307 Rev. D 3-17
82. Calculated the input related spurious level using the following formula:
Input Related Spurious dBc =
Marker M1 Amplitude Reading – Amplitude Reading of 8000 MHz
83. Record the calculated value into the Calculated IRS column for 7719 MHz to 7721 MHz in Table A-16 for
MS2036C, in Table A-37 for MS2037C or in Table A-61 for MS2038C and verify that it is ≤ –60 dBc.
14000 MHz Input Related Spurious Check (For MS2037C Only)
84. Set the MG3692X output to 14000 MHz CW, with an RF output level of –30 dBm.
85. On the MS203xC VNA Master, press the Freq hard key and then the Center Freq soft key.
86. Enter 14000 and then press the MHz soft key to set Center Freq to 14000 MHz.
87. Wait until the Trace Count displays 5/5.
88. Press the Marker hard key and then the Peak Search soft key.
89. Record the Marker amplitude reading of 14000 MHz in Table A-37, “Spectrum Analyzer Input Related
Spurious (IRS) Signals” on page A-19.
90. Press the Freq hard key and then the Start Freq soft key.
91. Enter 13719 and the press the MHz soft key to set Start Freq to 13719 MHz.
92. Press the Stop Freq soft key.
93. Enter 13721 and press the MHz soft key to set Stop Freq to 13721 MHz.
94. Wait until Trace Count displays 5/5.
95. Press the Marker hard key and then the Peak Search soft key.
96. Record the Marker M1 amplitude reading into the Measured Value column for 13719 MHz to 13721 MHz
in Table A-37.
97. Calculated the input related spurious level using the following formula:
Input Related Spurious dBc =
Marker M1 Amplitude Reading – Amplitude Reading of 15000 MHz
98. Record the calculated value into the Calculated IRS column for 13719 MHz to 13721 MHz in Table A-37
and verify that it is ≤ –60 dBc.
15000 MHz Input Related Spurious Check (For MS2038C Only)
99. Set the MG3692X output to 15000 MHz CW, with an RF output level of –30 dBm.
100. On the MS203xC VNA Master, press the Freq hard key and then the Center Freq soft key.
101. Enter 15000 and then press the MHz soft key to set Center Freq to 15000 MHz.
102. Wait until the Trace Count displays 5/5.
103. Press the Marker hard key and then the Peak Search soft key.
104. Record the Marker amplitude reading of 15000 MHz in Table A-61, “Spectrum Analyzer Input Related
Spurious (IRS) Signals” on page A-32.
105. Press the Freq hard key and then the Start Freq soft key.
106. Enter 14719 and the press the MHz soft key to set Start Freq to 14719 MHz.
107. Press the Stop Freq soft key.
108. Enter 14721 and press the MHz soft key to set Stop Freq to 14721 MHz.
109. Wait until Trace Count displays 5/5.
110. Press the Marker hard key and then the Peak Search soft key.
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