5 FUNCTIONS FOR RECEIVE

DRoofing filter selection

The IC-7700 has 3, 6 and 15 kHz roofing filters at the 1st IF frequency. The roofing filter provides interference reduction from nearby strong signals.

qPush and hold FILTER for 1 sec. to enter filter set screen.

w Select any mode except FM.

ePush [F-6•ROOFING] to select the desired filter width from 15 kHz (default), 6 kHz and 3 kHz.

• Push and hold [F-4•DEF] for 1 sec. to select a default value.

r Push EXIT/SET to exit filter set screen.

DDSP filter shape

The type of DSP filter shape for each SSB, SSB data and CW can be selected independently from soft and sharp.

qPush and hold FILTER for 1 sec. to enter filter set screen.

w Select SSB, SSB data or CW mode.

ePush [F-7•SHAPE] to select the desired filter shape from soft and sharp.

r Push EXIT/SET to exit filter set screen.

The filter shape can be set for each band (HF and 50 MHz bands), mode, as well as the passband width setting (CW only) independently from your default setting in filter shape set mode.

DFilter shape set mode

The type of DSP filter shape for SSB, SSB data and CW can be selected independently from soft and sharp.

qPush and hold FILTER for 1 sec. to enter filter set screen.

wPush and hold [F-7•SHAPE] for 1 sec. to enter filter shape set mode.

e Push [F-1•Y] or [F-2•Z] to select the desired item. rRotate the main dial to select the filter shape from

soft and sharp.

t Push EXIT/SET to exit filter shape set mode.

HF SSB (600Hz – )

SHARP

Select the filter shape for SSB mode in HF bands.

The set filter shape is automatically used only when the IF filter is set to 600 Hz or wider.

SSB–D (600Hz – )

SHARP

Select the filter shape for SSB data mode in HF bands.

The set filter shape is automatically used only when the IF filter is set to 600 Hz or wider.

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