EM-2115 APPENDIX A DESCRIPTION FRONT PANEL CONTROLS
(EM2115A-3)
Indicator:
LED, integrated into switch.
Color:
Red.
Function:
Turns the AFC circuitry ON or OFF. The integral LED indicator is ac-
tivated whenever the AFC is turned ON.
A-5.0 Sweep Function Controls
These controls are utilized whenever an optional external X-Y recorder or oscilloscope is
being used to record or present the data obtained by the EM-2115.
A-5.1 Scan Mode Switch
Type:
Momentary pushbutton switch.
Indicator:
None.
Function:
To select one of three modes of frequency tuning: Manual, Continuous,
or Single.
a. Manual
Frequency tuning is controlled by the front panel tuning controls.
b. Continuous
Used in conjunction with an external oscilloscope, the sweep is automati-
cally started and continuously repeated. Sweep speed is determined by the
setting of the Rate Switch in conjunction with the IF Bandwidth selected.
c. Single
Used in conjunction with an external X-Y plotter, sweep is initiated using
the Start Switch. Sweep speed is determined by the setting of the Rate
Switch in conjunction with the IF Bandwidth selected.
A-5.1.1 Scan Mode Indicators
Type:
LED.
Color:
Red.
Function:
To indicate the active mode of operation.
A-5.2 Start Switch
Type:
Momentary pushbutton switch.
Indicator:
None.
Function:
Used to start the sweep cycle in the Single Mode of operation. The end
of the sweep cycle automatically resets the sweep circuit.
Содержание EM-2115
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