quired; refer to paragraph 5f. Figure 10 (page 11)
describes the procedure for installing these washers.
The directivity measurement procedures described
in the following paragraphs use a Model 562 Scalar
Network Analyzer (SNA) in conjunction with an ap-
propriate 68XXXA/B Synthesizer. The setup for this
equipment configuration is described below in para-
graph a. These procedures can also be performed
using an appropriate model 54XXX Scalar Measure-
ment System (SMS); the setup for this configuration
is described in paragraph b. The actual measure-
ment procedures are described in paragraph c (>2
GHz) and paragraph d (<2 GHz).
a. Equipment Setup — Using 562 SNA
1. Connect test setup as shown in Figure 5.
2. Press the
LINE
key on the 68XXXA/B signal
source to
OPERATE
.
3. Press the
POWER
key on the 562 network
analyzer to
ON
.
4. Press the
SYSTEM
key on the signal source,
then select the Reset key, from the displayed
menu.
5. Set the signal source for frequency range of
the SWR Autotester under test and for maxi-
mum possible power, as described below.
(a) Press
CW/SWEEP SELECT
key.
(b) Select the Analog softkey from the dis-
played menu.
(c) Select the Edit F1 softkey from the dis-
played menu.
(d) Using the Cursor Control Key or Rotary
Data Knob, edit the F1 parameter to
equal the low-end frequency of the SWR
Autotester under test.
(e) Select the Edit F2 softkey and repeat
step (d) for the high-end frequency.
(f) Select the Edit L1 softkey and repeat
step (d) for the source’s maximum power
level.
6. Press
SYSTEM FUNCTION MENU
key on the
network analyzer.
7. Using
MENU
up-down keys, highlight
RESET
,
then press
SELECT
key.
8. Press
GRATICULE ON/OFF
key to
ON.
9. Proceed to paragraph c.
b. Equipment Setup — Using 54XXX SMS
1. Connect test setup as shown in Figure 6.
2. Press the
POWER
key on the 54XXX to
ON
.
3. Press
SYSTEM MENU
key .
4. Using
MENU
up-down keys: Highlight
RESET
, then press the
SELECT
key.
AIR LINE
OPEN/SHORT
34-SERIES
ADAPTER
562 SCALAR NETWORK ANALYZER
20 dB OFFSET
CONNECT DASHED LINE CONNECTIONS
WHEN DIRECTED BY PROCEDURE
SWR AUTOTESTER UNDER TEST
REFERENCE TERMINATION
(<2 GHz MEASUREMEN TS)
A
68XXXA/B SYNTHESIZER
Figure 5. Test Equipment Setup for Directivity Measurement Using 562 Scalar Network Analyzer
SWR OMM
5
