14. Reference Level Accuracy, HP 8591EM
Procedure
Log Scale
1. Set the synthesizer/level generator controls as follows:
FREQUENCY :: :: :: :: ::: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: : 50 MHz
AMPLITUDE : :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: :: : 010 dBm
AMPTD INCR :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: 10 dB
OUTPUT :: :: ::: :: :: :: :: ::: :: :: :: ::: :: :: :: ::: :: :: :: :: ::: :: :: :: ::: 50
2.Connect the equipment as shown in Figure
3.Press 4PRESET5 on the EMC analyzer, then wait for the preset routine to nish. Set the EMC analyzer by pressing the following keys:
4FREQUENCY5 50 4MHz5
4SPAN5 10 4MHz5
4MKR !5 MARKER ! HIGH
4 | MKR | 5 More | 1 of 3 MK TRACK | ON | OFF | (ON) | |||||||||||||
4 |
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| 5 50 4 |
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| 5 |
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SPAN | kHz |
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4 |
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| 5 | 87 4 |
| 5 SCALE | LOG | LIN | (LOG) 1 4 |
| 5 | ||||||
AMPLITUDE | +dBV | dB | |||||||||||||||||
4 |
| 5 3 4 |
| 5 | AVG BW AUTO MAN | (MAN) 30 4 |
| 5 | |||||||||||
BW | kHz | Hz |
4.Set the 1 dB step attenuator to place the signal peak one to two dB (one to two divisions) below the reference level.
5.On the EMC analyzer, press the following keys:
4SGL SWP5
4MKR !5 MARKER ! HIGH More 1 of 3 More 2 of 3 MARKER 1
6.Set the synthesizer/level generator amplitude and EMC analyzer reference level according to Table
7.Record the MKR 1 amplitude reading in the performance verication test record as indicated in Table
Performance Verication Tests