ACCEPTANCE TESTING
6-3
Introduction
Test procedures described in this chapter may be simplified and of restricted range compared with
those that relate to the generally more comprehensive factory test facilities which are necessary to
demonstrate complete compliance with the specifications.
Performance limits quoted are for guidance and should not be taken as guaranteed performance
specifications unless they are also quoted under 'Performance Data' in Chapter 1.
When making tests to verify that the instrument meets the stated performance limits, always allow
for the uncertainty of the test equipment.
For those signal generators with options fitted, the appendixes at the end of this Chapter and the
Annexes at the end of this manual must be referred to.
Recommended test equipment
The test equipment recommended for acceptance testing is shown in Table 6-1. Alternative
equipment may be used provided it complies with the stated minimum specification.
Table 6-1 Recommended test equipment
Description Minimum
specification Example
Power meter
±0.1 dB from 10 kHz to 5.4 GHz
Aeroflex 6960B and
6910 or 6912 sensor
Measuring receiver
0 dBm to -127 dBm; 2.5 to 1300 MHz
HP8902A and 11722A
sensor
and 11793A down
converter#
Signal generator
8 dBm from 32.5 MHz to 5.4 GHz
Aeroflex 2032
Frequency counter
10 Hz to 5.4 GHz
ETP 535B or
Aeroflex 2440
Audio analyzer
Capable of measuring THD below 0.03%m from
50 Hz to 20 kHz. Capable of measuring 0.5 mV
±3% and levels at 10 Hz
Rohde & Schwarz
UPA3
Digital multimeter
DC to 500 kHz, 1 mV to 5 V
Datron 1061A
Resistance
measurement capability
Modulation meter
AM, FM and
Φ
M. 1.5 MHz to 1 GHz.
Accuracy better than 1.1%. Modulation
freqs from 30 Hz to 50 kHz. Capable of
measuring Residual FM less than 7 Hz.
Aeroflex 2305 plus
distortion option*
Spectrum analyzer
10 kHz to 16.2 GHz
Dynamic range greater than 80 dB
Capable of measuring less than -70 dBm.
Aeroflex 2386
Break-out box
Aeroflex 44991/144
Function generator
DC to 10 MHz sine ±0.6 dB flatness
HP3325B
*
The distortion option of the 2305 Modulation Meter allows modulation distortion tests to be
carried out with greater ease. If a 2305 with a distortion option is not available, the Audio
Analyzer may be connected to the Modulation Meter LF output and set to measure distortion.
# If receiver and down converter are not available, an alternative procedure to ensure
attenuator pad accuracy using a power meter is given.