APPLICATIONS
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displayed. The screen is split horizontally in two, with the upper part displaying the
application mode and the lower part displaying the application cancellation selection.
B3403
Fig. 4-19 Setup menu in application mode
(18) To choose another application press [Appl’n Menu] which returns you to the Applications
Selection Menu.
(19) To cancel the current operation but retain the combiner and coupling setups, press [No
Appl’n (mode 1)]. To cancel the current operation but restore to the previous combiner and
coupling setups press [No Appl’n (mode 2)]. Pressing either key returns you to the Setup
Menu with no application selected as confirmed by the screen.
Receiver selectivity application
The receiver selectivity test enables you to generate a modulated low-level RF signal to open a
receiver and a second, much higher-level signal (with or without modulation) to interfere with the
received signal. A facility is provided for you to increment, at a specified channel spacing,
through the channels.
Procedure
(1) Press [Receiver Select.] which displays the Receiver Selectivity block diagram as shown in
Fig. 4-20 below.
B3404
Fig. 4-20 Receiver selectivity block diagram
(2) Connect the receiver under test to the COMBINED RF OUTPUT socket as shown by the
block diagram.
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