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8559A PERFORMANCE TESTS
PERFORMANCE TESTS
4
-
25.
CALIBRATOR OUTPUT ACCURACY
SPECIFICATION:
Amplitude:
-
10 dBm
+
0.3 dB
Frequency:
35 MHz
+
400
kHz
DESCRIPTION:
The frequency of the calibrator output signal is measured with a microwave counter. The calibrator output level
is measured using a power meter.
SPECTRUM
ANALYZER
FREQUENCY
COUNTER
I
INPUT
0
y:;;
@.a@@
0..
0
...
0
I-1
I
OUTPUT
POWER
SENSOR
-
POWER
METER
FIGURE
4-21,
CALIBRATOR ACCURACY TEST SETUP
EQUIPMENT:
..............................................
Frequency Counter
HP
5342A, Opt. 005
Power Meter
...........................................................
HP 435A/B
Power Sensor
...........................................................
HP 8481A
PROCEDURE:
1. Connect spectrum analyzer CAL OUTPUT to frequency counter's 10 Hz
-
500
MHz
(5m) input as shown
in Figure 4
-
20. Measured output frequency should be 35 MHz
k
400
kHz.
2.
Zero and calibrate power meter. Connect power sensor, through adapter, to spectrum analyzer's CAL
OUTPUT and measure power level. Calibrator output level should be
-
10 dBm
+
0.3 dB.