Anritsu Company Site Master S312D, Maintenance Manual, Page: 53 / 62

Test Records
S312D MM PN: 10580-00195 Revision B A-5
Spectrum Analyzer Level Accuracy Verification
Calculations for power loss:
C = A – B
E = A – D
Calculations for Desired Sensor B Reading:
Desired Sensor B Reading = Desired Test Power Level + C – E
where “Desired Test Power Level” is 0 dBm, then –39 dBm.
S312D Firmware Revision: ________________ Operator: ________________ Date: ______________
Serial Number: ________________ Options: ___________________________________________________
Table A-7. Spectrum Analyzer Level Accuracy Verification Output Power Levels
A B C D E
Freq
(MHz)
Sensor A
Reading at
Source Output
Sensor A
Reading at
Attenuator End
Splitter/Attenuator
Combined
Loss
Sensor B
Reading at
Power Splitter
Sensor B Path
Power Splitter
Loss
30 dBm dBm dBm dBm dBm
50 dBm dBm dBm dBm dBm
550 dBm dBm dBm dBm dBm
1000 dBm dBm dBm dBm dBm
1244 dBm dBm dBm dBm dBm
1411 dBm dBm dBm dBm dBm
1580 dBm dBm dBm dBm dBm
Table A-8. Spectrum Analyzer Level Accuracy Verification with Frequency Test Settings
Freq
(MHz)
Desired Sensor B Reading for 0 dBm
at Attenuator Output
Desired Sensor B Reading for –39 dBm
at Attenuator Output
30 dBm dBm
550 dBm dBm
1000 dBm dBm
1244 dBm dBm
1411 dBm dBm
1580 dBm dBm