Transmitter Level Accuracy - HP 4934A Operating And Calibration Manual

Transmitter Level Accuracy
SPECIFICATION
Level Accuracy (at 1004 Hz): -19 dBm to 0 dBm ±0.1 dB (typical)
DESCRIPTION
An AC Voltmeter and 600Q resistor are used to check the HP 4934A trans¬
mitter output level accuracy at 1004 Hz.
EQUIPMENT
AC Voltmeter : HP 3456A
6000±0.01% Resistor ; HP0811-3502
PROCEDURE
1
Connect the 6000 resistor across the AC Voltmeter input.
2
Connect the HP 4934A TRMT port to the AC Voltmeter input.
3
Set the HP 4934A as follows:
Measurement
Transmitter (TRMT) Impedance
Display Mode
Transmitter Level/Frequency
LEVEL FREQ
6000
TRMT
0 dBmyi004 Hz
4
Check the reading on the AC Voltmeter is between 0.7657 and 0.7836 V.
5
Set the HP 4934A transmitter output level to each of the values in the following
table and check the AC Voltmeter readings.
HP 4934A Output Level AC Voltmeter Reading
-5 dBm 0.4306 to 0.4406V
-10 dBm 0.2421 to 0.2478V
-19 dBm 0.0859 to 0.0879V
Performance Tests 5-21