IFR FM/AM-1200A

4-9-2 Spectrum Analyzer Operation
To calibrate analyzer base line, perform the following steps:
STEP PROCEDURE
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1. Place the FM/AM-1200S front panel controls to the settings
listed in Table 4-10.
2. Set HORIZONTAL Sweep Selector Control (26) to any mS/Div
Position.
3. Adjust VERT POS Control (27) to center trace directly over
center horizontal graticule.
4. Set HORIZONTAL Sweep Selector Control (26) to "1 MHz/Div"
Position and MODE Selector Control (39) to ''GEN'' Position.
5. Adjust HORIZ POS Control (30) to center signal directly over
center vertical graticule.
With the spectrum analyzer baseline calibrated, a -30 dBm RF signal
applied to ANT Connector (34) will indicate a full scale display.
4-10 TONE GENERATOR OPERATION
The FM/AM-12005/A has two independently controlled tone generators (one
variable and one fixed). The variable tone generator is capable of
generating modulation sinewave signals wit~in a range of 2 Hz to 30 kHz
(in 0.1 Hz increments). All other waveform modulation signals are
within a range of 2 Hz to 10 kHz (in 0.1 Hz increments). The fixed tone
generator output is a 1 kHz sinewave. The frequency and wave shape of
the variable tone generator is selected by the FM/AM-12005/A Keyboard
(18) and displayed on the VFD (37) when the Keyboard ''TONE" key mode is
selected. The output level of each tone generator can be individually
controlled.
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