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RC4600 ACU Board Set
2.1.2.1.4.2.1 Frequency Controls
2.1.2.1.4.2.2 Amplitude Controls
2.1.2.1.4.2.3 Bandwidth Controls
Chapter 1
The Frequency control allows the Center Frequency and Span to
be controlled. Both parameters may be incremented by using the +
- keys. The Increment for Center frequency is 1/5th of one division.
Additionally, the center frequency may be adjusted by direct entry
in the numeric window. Center Frequency can be adjusted to be
anywhere within the range of 950 to 2150MHz. The allowable
spans are:
0.000 MHz, 0.010 MHz, 0.020 MHz, 0.050 MHz, 0.100 MHz, 0.200
MHz, 0.500 MHz, 1.000 MHz, 2.000 MHz, 5.000 MHz, 10.000 MHz,
20.000 MHz, 50.000 MHz, 100.000 MHz, 200.000 MHz, 500.000
MHz, 1000.000 MHz, and 1100, MHz.
Span is sometimes adjusted automatically based on changed in
center frequency.
The Amplitude control allows the Reference Level and Vertical
Scale (dB/division) to be adjusted. Again, both controls are
incremented/ decremented via the + - buttons. The allowable
values for Scale are 1, 2, 5, and 10 dB per division. The Reference
Level increments by the amount a dB currently used in the dB/div
field. For example, if the scale is set to 5 dB/div, the reference level
will be incremented in 5 dB steps and can also be directly entered.
The allowable Reference Level range is -70 to 0dB.
The Bandwidth Controls allows the Resolution Bandwidth (RBW)
and Video Bandwidth (VBW) to be seen. The Resolution
Bandwidth can be adjusted to:
30 KHz, 10 KHz, 30 KHz, 100 KHz, 300 KHz, and 1000 KHz.
The Video Bandwidth can be adjusted to:
300 Hz, 3 KHz, 30 KHz, and 300 KHz.
54
Introduction
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