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MODEL 8559A
PERFORMANCE
TESTS
PERFORMANCE TESTS
4.1
2.
TUNING
ACCURACY
SPECIFICATION:
0.1
-
3.0 GHz:
-t
(1 MHz
+
0.3% of center frequency)
3.0
-
21.0 GHz:
-t
(5 MHz
+
0.2% of center frequency)
DESCRIPTION:
An
external RF source is used to provide a frequency
-
calibrated input signal to the spectrum analyzer for three
points on each frequency band. The digital FREQUENCY
GHz readout is compared with the known test
frequency to find the amount of readout (or tuning) error. The 10 dB attenuator is necessary to reduce LO
emission from the spectrum analyzer to the frequency counter when using the sweep oscillator.
COMB
GENERATOR
ADAPTER
SPECTRUM
ANALYZER
SWEEP
R
F
FREQUENCY
OSCILLATOR PLUG
-
IN COUVFR
SPLITTER
CABLE ASSY
(Re-214fU)
INPUT
1
!
-
-
POWER
. .
-
-
-
1
ADAPTER
---------
-
f7
!
CABLE ASSY
~~~~~T~~
(Re-91111''
IbVNNCbI
UlnCbILl
I
I
TO
ANALYZER)
ADAPTER
FIGURE
4-4.
TUNING ACCURACY TEST SETUP
NOTE
The
HP
8350A
Sweep Oscillator may be substituted for the
HP
8620C
in this
procedure.
EQUIPMENT
CombGenerator
........................................................
HP8406A
.........................................................
Sweep Oscillator HP 8620C
...................................................
RF Plug
-
In
HP
86290B, Opt. H08
..............................................
Frequency Counter
HP
5342A, Opt. 005
......................................................
Power Splitter HP 1 1667A-C16
................................................
10
-
dB Attenuator
HP
8491B, Opt. 010
...............
Cable Assembly, RG-214/U, with Type N Connectors (2 required)
HP 1
1500A
.............................................
Adapter, Type N
(f)
to N
(f)
HP 1250
-
1472
...............................
Adapter, Type N (m) to BNC
(f)
(2 required)
HP 1250
-
0780