ACCEPTANCE TESTING
5-1-28
SSB phase noise
SPECIFICATION
SSB phase noise : Less than −116 dBc /Hz (typically -122 dBc/Hz) at an offset of 20 kHz from
a carrier frequency
TEST EQUIPMENT
Description Minimum specification Example
Phase noise measuring
device
Capable of measuring phase noise of
−116 dBc
IFR L262
Signal generator SSB phase noise at least −116 dBc at
20 kHz offset from a 470 MHz carrier
signal
IFR 2040
Spectrum analyzer Capable of measuring 100 Hz to 100 kHz IFR 2382
TEST PROCEDURES
Fig. 5-1-14 SSB phase noise test set-up
(1) Connect the test equipment as shown in Fig. 5-1-14.
(2) Set the UUT to [Carrier Freq.] 470 MHz [RF Level] 7 dBm, modulation to OFF.
(3) Using the phase noise measuring device, measure SSB phase noise at a 20 kHz
offset which should be less than −116 dBc.
LAST COMPLETE CHECK DATE
On completion of the adjustment routine or of a calibration check, the date can be
recorded. To do this, unlock the instrument to level 2, select the Calibration Utilities Menu, then
press the [Checks Complete] key. This will result in the Last Complete Check date being
updated to the current date.
C0320
RF OUTPUT
RF OUTPUT
UUT
2040 Signal Generator
Mixer
Phase Noise
Measuring
Device
RF
RF
OUTPUT
TUNE
INPUT
EXT
MOD 1
2382/2380
Spectrum Analyzer and Display