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In the Spectrum Analyzer mode or the Step Resolution mode, pressing the [MK.F]
key on the numeric keypad will set the marker frequency to the receive frequency.
[MK
RF]
In the Channel Scope mode, the receiver connected to the SDU5600 receives the signal
on the marker frequency. This will not affect the start frequency, end (stop) frequency,
frequency channel step settings of the SDU5600.
6-8 Calculation Function
6-8-1 Maximum Trace (MAX)
Press the [FUNC] key and press the [7] key to select the Maximum Trace.
When the Maximum Trace is selected, the traces on the LCD are frozen to indicate the
strongest signals. This is a useful function to 'trap' occasional transmissions over a long
time-scale and to check on band allocation for transmission license issuers.
Press the [CLR] to exit from this function.
6-8-2 Average Trace (AVR)
Press the [FUNC] key and press the [8] key to select the Average Trace.
The average height of traces are calculated and displayed on the LCD. The effect is a
'wave' of activity, and is useful for accessing band activity over a relatively short period of
time.
Once activated, the buffer size must be allocated between 2 and 31 frames. The number
of frames can be entered by the numeric keypad followed by the [ENT] key.
While the buffer is loading, the number of frames is indicated until the programmed
number has been sampled. After this point, the specified number of frames will be
averaged on an on-going basis.
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