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FLEX-6000 Signature Series – Maestro User Guide

11.4 HOW TO CHANGE THE DEMODULATION MODE

When a Slice Receiver is active, the Slice Receiver

Flag shows the mode and receive filter width in use.

To change the mode, tap the frequency display or

depress the slice receiver’s tuning knob for two

seconds or more. The Slice Receiver Menu will be

displayed. Tap on the desired mode in the mode

sub-menu. The Slice Receiver will change to that

mode and values in the Slice Flag will change accordingly. To close the pop-up menu, tap on the

Slice Receiver’s frequency display or anywhere outside of the pop-up menu or depress the slice

receiver’s tuning knob for two or more seconds.

The position of the Receive Filter relative to the Carrier Frequency will correspond to the

conventions of the current mode. A Receive Filter to the right of the Carrier indicates Upper

Sideband mode. A Receive Filter to the left indicates Lower Sideband mode. A Receive Filter that

spans both the left and right of the Carrier will indicate a double sideband mode.

11.5 HOW TO ADJUST THE SPEAKER AND HEADPHONE VOLUME OF A SLICE

RECEIVER

Speaker and headphone audio levels are controlled by the AF/AGCT/SQL multi-function controls on

the Maestro front panel. The speaker and headphone audio level is controlled with the inner knob.

The Automatic Gain Control Threshold is adjusted with the outer knob. When the Slice is operating

in an FM mode, the outer knob controls the audio squelch level. A short press of the inner knob

mutes the other Slice, placing the audio in Solo mode (and making the Slice the Active Slice). A long

press of the inner knob mutes or unmutes the corresponding Slice. When a Slice is muted, a mute

indicator appears superimposed on the Slice Flag.

Controls for left-to-right audio balance and AGC decay rate can be found in the Slice Receiver

Menu. Tap the Slice Receiver’s frequency display to bring up this menu. See section 14.1, AGC

Threshold for detailed information about the use of the AGC.

11.6 HOW TO CHANGE THE RX FILTER OF A SLICE RECEIVER

Surrounding the Carrier Frequency bar in a Slice Receiver is a blue Receive Filter bar which

represents the filtered receive audio. The portion of the RF spectrum that is highlighted by the

Receive Filter bar will be output as audio.

The Receive Filter width can be adjusted manually with the RX filter multi-function control. The

control has two modes. In the High/Low mode, the inner knob controls the position of the lower

frequency edge of the RX filter and the outer knob controls the position of the higher frequency

edge. In the Center/Width mode, the inner knob controls the frequency of the center of the RX

filter and the outer knob controls the width of the filter. A pop-up display shows the frequency of

the filter parameter, relative to the Slice Receiver’s tuned frequency as the filter is adjusted.

FlexRadio Signature FLEX-6000 Series User Manual

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