IFR FM/AM-1200A

ITEM NAME DESCRIPTION
25. ~~llQ~I~h_2~~~Q-~~~~l~~-f~~!~~l
Divides horizontal sweep rate by a factor of from 1 to 10. In
the "CAL" position (fully cw), the factor is 1 and the sweep rate
is as selected by the HORIZONTAL Sweep Selector Control (26). In
the fully ccw position, the factor is 10. In any intermediate
position, the factor is between 1 and 10.
26. ~~llQ~I~~-2~~~Q_2~l~~!~~-f~~!~~l
FM/AM-1200A Only- Selects horizontal sweep rate of the oscillo-
scope. This control functions as follows:
TONE position - Oscilloscope horizontal sweep is driven by
waveform output of tone generators.
mS/DIV positions - Represent oscilloscope sweep rate in milli-
seconds per division, when Scope Horizontal
Sweep Vernier Control (25) is in CAL position
(fully clockwise).
S/DIV positions - Represent oscilloscope sweep rate in micro-
seconds per division, when Scope HORIZONTAL
Sweep Vernier Control (25), is in the CAL
position (fully cw).
FM/AM-1200S Only- Selects horizontal sweep rate of the oscillo-
scope or dispersion of Spectrum Analyzer.
Dispersion Control functions as follows:
TONE position - Oscilloscope horizontal sweep is driven by
waveform output of tone generators.
mS/DIV positions - Represent oscilloscope sweep rate in milli-
seconds per division, when Scope Horizontal
Sweep Vernier Control (25) is in CAL position
(fully clockwise).
[NOTE\
The Spectrum Analyzer operates in the following
positions:
MHz/DIV positions
kHz/DIV positions
3-7
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