Saluki S3531 series, Руководство пользователя

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6.7 FREQ
The [Frequency] key on the front panel is used to set parameters related to the signal/spectrum analyzer frequency, including
[Center Frequency], [Start Frequency], [Stop Frequency], [CF Step Auto ON OFF], [Frequency Offset]. User can configure the
frequency measurement scope through the [Start Frequency] and [Stop Frequency], or through the [Center Frequency] and
[Span]. Press the [Frequency] key to enable any soft menu from [Center Frequency], [Start Frequency] and [Stop Frequency],
and corresponding parameter input area will display current parameters.
Following diagram gives a direct view of the menu structure

[Center Freq]
Menu description: to enable the center frequency and set the signal/spectrum analyzer into the center frequency/span mode.
Use number keys, stepping keys or knob to change the center frequency. If the set center frequency is inconsistent with the
current span, the settings will automatically adjusted to the value best suitable for desired frequency

[Start Freq]
Menu description: to enable the start frequency and set the signal/spectrum analyzer into the start frequency/stop frequency
mode. Use number keys, stepping keys or knob to change the start frequency. In changing the start frequency, if the selected
start frequency is larger than the stop frequency, the latter one will automatically increase till equaling to the sum of start
frequency plus minimum span

[Stop Freq]
Menu description: to enable the stop frequency and set the signal/spectrum analyzer into the start frequency/stop frequency
mode. Use number keys, stepping keys or knob to change the stop frequency. In changing stop frequency, if the selected stop
frequency is less than the start frequency, the latter one will automatically decrease till equaling to the difference of stop
frequency minus minimum span.

[CF Step Auto Manual]
Menu description:
to change the steps of center frequency, start frequency or stop frequency.
When the center frequency
is active, press the step key, the frequency step changes 1/10 of the span. When it is under Manual mode, use the number keys,
stepping keys or knob for change. At this time, reactivate the [Center Frequency], and press the step key, the center frequency