Series 8650A Universal Power Meters - Giga-tronics

Adjustments & Performance Tests2.3.2.2 Maximum Output PowerConnect the test setup as shown in Figure 2-2. Start the HyperTerminal program and connect to the8650A using the serial communications port. The Comm Port set up should include the Append LineFeeds to incoming Line Ends. When communications are established, enter the command “XCTESTCAL”. The 8650A will output data as shown in Figure 2-3. Set the Step Attenuator so that theAttenuator is at 20 dB attenuation.Figure 2-2: Calibrator Maximum Output Test SetupGIGA-TRONICS MODEL 8650 CALIBRATOR SERVICE---- ------- ----- ---- ---------- -------Calibrator S/N 001835111 ... Password XXXXXXXX ... High Band EnabledCF(50M) -307 @ 52.4 C, SC_50: 0 ..... CF(1G) 264 @ 52.4 C, SC_1G: 0Temperature : 49.4 C ... Oven Control : 3.860 VoltsMAX335 register = 5e1c ATTN 0007 MODE 5e00 ... CAL_OFFAttenuation = 0 Frequency 50 MHz LOCKED LEVELLEDAmbient Voltage 2.0797 Volts (27033)Reference Voltage 2.2040 Volts (28649)Difference Voltage 0.3769 Volts (04940)Power 0.000 dBm Spigot -0.005 dBm Diode 3.1603e-01 CH: 050 MHz Cal Factor Setting CF (50)Enter one of the following numbers (any other number to exit)A = Set RF Attenuation F = Set Frequency L=LEVEL MODEO = Calibrator Off P = Set Power M=DifferenceD = Set DAC C = Cal Freq. Response G=Temp Comp AS = Set Calibrator SN R = Set HiBand Password X=Set 50M SCT = Set 50M Cal Factor U = Set 1G Cal Factor Y=Set 1G SCQ=QUITAmb : 2.079655 Ref : 2.203974 DAC : 0.395279Figure 2-3: HyperTerminal TM DisplayManual 32089, Rev. A, December 2000 2-7