Anritsu 682XXB - Manual (Page 74)

3-8
SPURIOUS SIGNALS
TEST: RF OUTPUT
SIGNALS
£
2 GHz
(
£
2.2 GHz for 68XX5B
MODELS)
The following test can be used to verify that the signal generator
meets its spurious signals specifications for RF output signals from
0.01 to 2 GHz (0.5 to 2.2 GHz for 682X5B/683X5B Models). This test is
applicable only to instruments which cover the frequency range 10
MHz to 2 GHz (500 MHz to 2.2 GHz for 682X5B/683X5B models). The
0.01 to 2 GHz test procedure begins on this page; the 0.5 to 2.2 GHz
test procedure begins on page 3-17.
Test Setup Connect the equipment, shown in Figure 3-3, as fol-
lows:
1. Connect the 682XXB/683XXB rear panel 10 MHz
REF OUT to the Spectrum Analyzer External Ref-
erence Input.
2. Connect the 682XXB/683XXB RF OUTPUT to the
Spectrum Analyzer RF Input.
0.01 - 2 GHz
Test
Procedure The following procedure lets you measure the worst
case spurious signals (harmonic and non-harmonic)
of the 0.01 to 2 GHz RF output to verify that they
meet specifications.
1. Set up the Spectrum Analyzer as follows:
a. Span: 10 MHz/div
b. CF: 50 MHz
c. RBW: 1 MHz
d. Sweep Time/Div: Auto (to resolve signal peaks
clearly)
3-14 682XXB/683XXB MM
PERFORMANCE SPURIOUS SIGNALS TEST: RF OUTPUT SIGNALS
VERIFICATION
£2 GHz (£2.2 GHz for 68XX5B MODELS)
10 MHz
REF OUT
682XXB / 683XXB
EXT REF
INPUT
RF OUT
Spectrum Analyzer
RF IN
Figure 3-3. Equipment Setup for Spurious Signals Test: RF Output Signals £2 GHz