AOR SDU5600 Specifications download pdf (Page 25)

5-4-3 Channel scope mode

Example of the screen is shown here, the parameters are:

Start frequency = 118.0MHz

Step frequency = 25kHz

End frequency = 122.00MHz

Frequency span = 4MHz

Marker frequency = 121.8MHz

Receive marker = 119.7MHz

Unlike the spectrum analyser mode or step resolution

mode there is no centre frequency (CF) in the channel

scope mode.

Start frequency (Ch.START)

Press the Ch.START key to make the start frequency

read-out display appear in reverse contrast. Enter a

desired frequency using the ten-keys, which is the

lowest of the frequency spread you wish to monitor

(start frequency), followed by ENT to confirm.

Step frequency (Ch. STEP)

Press the Ch.STEP key to make the step frequency

display red-out appear in reverse contrast. Enter the

desired step frequency of your choice using the ten-

keys followed by ENT to confirm.

End frequency (Ch.END)

Press the Ch.END key to make the end frequency display read-out appear in reverse contrast. Enter a frequency, using the ten-keys,

which is the highest of the frequency spread you wish to monitor (end frequency), followed by ENT to confirm.

Receive frequency (RX.FREQ)

When the channel scope mode is activated, monitoring begins on the start frequency. Rotate the main dial of the SDU5600 to move

the marker onto the signal of your interest, and press the MK.F key. The yellow receive marker moves to the nominated position and

the companion receiver monitors the wanted frequency. As the main dial of the SDU5600 is rotated, the white marker moves and the

yellow receive marker is left in position to signify the current active receive frequency. To select a new frequency to monitor, simply

press the MK.F key.

Note: The end frequency (Ch.END) is confined by the formulae:

(CH.START) + [ (Ch.STEP) x 160 ]

(CH.START) + 5MHz

For this reason, if you do not enter an END frequency, the SDU5600 will automatically select an appropriate end point.

Invalid entry for the end frequency will be alerted with a beep (if the feature is enabled), and the closest possible valid

frequency will be automatically chosen by the SDU5600. Similarly, any invalid entry of frequency will be alerted with the

beep (if the feature is enabled), and will be automatically adjusted to the nearest possible frequency by the SDU5600.

Section 5-4-3

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AOR SDU5600 Specifications Page 25