
Chapter 2 Controls and Connections
Receiver
FREQUENCY – F.DIGIT – The frequency select knob operates in
conjunction with the F.DIGIT button. Pressing the F.DIGIT
button toggles the step size between 10 kHz, 100 kHz, and 1
MHz. The current step size is displayed on the FRQ ADJ line of
the display. Turning the knob clockwise increases the frequency
by the selected step size. Counter-clockwise rotation decreases
the frequency by the selected step size.
MODE – The Mode button toggles the receiver between Signal
Strength, Spectrum Monitor, Path Loss and Shield Level. The
current mode is always displayed on the LCD screen. Press the
Mode button until the desired mode of operation is displayed.
CAL – When setting up the unit for Path Loss or Shield Level
measurements, pressing this button initiates the internal System
Calibration sequence. (See OPERATION section for details)
THOLD – These two buttons increment the threshold value up or
down. The value is displayed on the LCD. This is the signal level
at which the audible alarm is triggered.
LIGHT – This button activates the backlighting for the LCD display.
LOCK - The lock button toggles on and off to lock the control panel,
in order to guard against accidental changes during a
measurement. The status of the lock function is displayed on the
LCD screen.
POWER ON/OFF/VOLUME – Turn the control clockwise to power ON
the unit and counter-clockwise to turn it off. The volume control
changes the audio level for the alarm output.
PHONES – This is the audio jack for the threshold tone output. The
supplied headphones can be plugged into this output jack.
INPUT – RF Input connector (50 OHM)
REMOTE – This is the USB connection port. (See the section on
remote operation for details on this connection.)
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PRAXSYM