FUNCTIONS FOR RECEIVE

5

■IF filter selection

FILTER

The transceiver has 3 passband width IF filters for each mode.

For SSB, CW and PSK modes, the passband width can be set within 50 to 3600 Hz in 50 or 100 Hz steps. A total of 41 passband widths are available.

For RTTY mode, the passband width can be set within 50 to 2700 Hz in 50 or 100 Hz steps. A total of 32 pass- band widths are available.

For AM mode, the passband width can be set within 200 Hz to 10 kHz in 200 Hz steps. A total of 50 pass- band widths are available.

For FM mode, the passband width is fixed and 3 pass- band widths are available.

The filter selection is automatically memorized in

each mode.

The PBT shift frequencies are automatically memo- rized in each filter.

DIF filter selection

q Select the desired mode.

wPush FILTER several times to select the IF filter 1, 2 or 3.

• The selected passband width and filter number is displayed in the LCD.

DFilter passband width setting (except FM mode)

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

w Select any mode except FM.

• Passband widths for FM modes are fixed and cannot be set.

ePush FILTER several times to select the desired

IF filter.

rWhile pushing [F-1•BW], rotate the main dial to set the desired passband width.

• In SSB, CW and PSK modes, the passband width can be set within the following range.

50 to 500 Hz

50 Hz steps

600 to 3600 Hz

100 Hz steps

• In RTTY mode, the passband width can be set within the

following range.

 

50 to 500 Hz

50 Hz steps

600 to 2700 Hz

100 Hz steps

• In AM mode, the passband width can be set within the following range.

200 Hz to 10 kHz 200 Hz steps

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

t Repeat steps w to r if desired for other modes. y Push EXIT/SET to exit filter set screen.

The PBT shift frequencies are cleared when the passband width is changed.

This filter set screen graphically displays the PBT shift frequencies and CW pitch operations.

5-13