4-13. EXT WATTMETER. When the analyzer DISPLAY is set to the Ext Wattmeter mode and the Motorola
RTL-4055A in-line wattmeter adapter (supplied) is connected to the Ext Wattmeter jack the analyzer measures
both forward and reflected power. The power rating of the wattmeter elements (Motorola ST-1200 series"), to
be used, are displayed on the CRT. The following is an example of a test setup for external wattmeter
operation. Figure 4-7 shows the test set connections and CRT display.
a. Select the EXT Wattmeter function by means of the arrow keys located below the DISPLAY column.
b. Plug the connector of the RTL-4055A In-Line Wattmeter adaptor into the "Ext-Wattmeter" jack located
on the RF SECTION of the front panel.
c. Using the keyboard; enter the single digit which corresponds to the full scale power rating of the ST-
1200 series element you plan to use.
d. Place the ST-1200 element In the In-Line Wattmeter adaptor and install element/adaptor assembly into
transmission line.
NOTE
Arrow on In-Line Wattmeter Adaptor must point in the forward direction of the
desired rf power flow through the adaptor.
e. Key transmitter and observe magnitudes of forward and reflected power as displayed simultaneously
on the 2 analog meter bars and corresponding digital readouts.
POWER
ANii nr,
RFTO
ANTENNA TRANSMITTER
R-2001A
EXT
WATT METER
INDICATION
-— OF REFLECTED
RFFROM
POWER
FUNCTION
ANALOG
INDICATION
OF FORWARD
W
1 )
E
i
a
^
U S T T K E I E t
i . 5 4 )
e
, ^ >
10 E.'
FBI
f.CV
E L E H E M T HO
t5 7 > E50
50 8 > 500
100 9 i 1000
U f l T T S
U B T T 5
B
0 . 0
100
0 . 0
100
8521-12
)-
WATT METER ELEMENTS
TABLE
FORWARD POWER
READING
REFLECTED POWER
READING
Figure 4-7. Wattmeter Test Setup and CRT Display
4-14. SIMULTANEOUS GENERATE AND MEASUREMENT OPERATIONS. The following test setups and
CRT displays are examples of simultaneous generating and measurement operations.
a. FM Mobile radio setup for receiver sensitivity using Generator and SINAD meter.
1. Connect RF In/Out to mobile radio antenna connector and multipurpose measurement (SINAD)
input to receiver audio output.
'Contact your Motorola Parts Source for ordering separately.
4-17
Содержание R-2001A
Страница 1: ... MOTOROLA test equipment oo ro oo w ro ro w oo R 2001AIR 2002A 68P81 069A84 0 Table of contents ...
Страница 11: ...Figure 1 1 Communications System Analyzer 1 0 8521 15 aaaa 2 UDIUI I IDDEI so 11S2 ...
Страница 87: ...SECTION 6 SYSTEM INTERCONNECT AND PARTS LISTS ...
Страница 90: ...Of MOD V CI I Q HT _ 11 0 0 Figure 6 2 Motherboard Assembly Parts Locator RTL 4060A 44 1 44 ...
Страница 97: ... n 0 c co U r 0 l r Q 0 iii a 0 0 ro U 0 c 0 0 ...
Страница 99: ... L I 1 i L i r I 1 Low Voltage Power Supply Control Assy A1A1 ...
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Страница 123: ... C11 IT RF1 RF2 Figure 10 3 Receiver Parts Locator Sheet 1 I L19 l C101 ueoe v C79 v C80 ...
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Страница 134: ... n a c il i JJ 0 n i T t1 3 J c t1 0 0 l i 3 a Cii T 10 t1 1 Q I L 5 H 0 r u l v 1 1 o f IH IH 8 8 z ...
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Страница 158: ... cCi c Cil t m m m ro 4 S 0 CD 3S 0 a c D U S l r 0 0 S Q j I i 0 ...
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Страница 180: ... CR1120 AT2 0 C107 C109D Power Meter Protection A11A1 ...
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Страница 201: ... Figure 20 2 Display Board A14A1 Schematic Diagram 01 80304A43 ...
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