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Kenwood digital signal processing (DSP) technology is adapted to this transceiver. Using DSP filtering (AF), you can control the bandwidth, cancel the multiple jamming beat, and reduce the noise level.

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For improving interference reduction capability, this transceiver also provides IF filters designed using DSP technology. When in SSB, FM, or AM mode, you can change the filter bandwidth by altering its low and/ or high cut-off frequency. For CW, FSK, and DATA modes, you can change the filter bandwidth by directly specifying a bandwidth. Changing the filter bandwidth does not affect the current receive frequency.

•The meter display changes, based on the bandwidth you are setting up.

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1Select SSB, FM, or AM mode.

2Turn the LO/WIDTH control clockwise to raise the low cut-off frequency, or counterclockwise to lower the low cut-off frequency.

Mode

Low cut Frequency (Hz)

Default

SSB/

0, 50, 100, 200, 300, 400,

300 Hz

FM

500, 600, 700, 800, 900, 1000

 

AM

0, 100, 200, 300

100 Hz

 

 

 

Turn the HI/SHIFT control clockwise to raise the high cut-off frequency, or counterclockwise to lower the high cut-off frequency.

Mode High cut Frequency (Hz)

Default

1000, 1200, 1400, 1600,

 

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1Select CW or FSK mode.

2Turn the LO/WIDTH control clockwise to increase the bandwidth (wide), or counterclockwise to decrease the bandwidth (narrow).

Desired signal

Interfering signal

Interfering signal

 

Before

After

 

 

 

 

 

Mode

Bandwidth Selection (Hz)

 

Default

CW

50, 80, 100, 150, 200, 250,

 

 

 

300, 400, 500, 600, 1000,

 

 

500 Hz

 

1500, 2000, 2500

 

 

 

FSK

250, 500, 1000, 1500

 

 

500 Hz

3As for CW, you can further adjust the shift frequency for the pass band. Turn the HI/SHIFT control clockwise to increase the shift frequency (high), or counterclockwise to decrease the shift frequency (low).

Shift Frequency (Hz)

Default

300, 350, 400, 450, 500, 550, 600,

650, 700, 750, 800, 850, 900, 950, 800 Hz 1000

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1Select Data mode (USB-DATA/LSB-DATA).

2Turn the LO/WIDTH control clockwise to increase the bandwidth (wide), or counterclockwise to decrease the bandwidth (narrow).

Bandwidth Selection (Hz)

Default

50, 80, 100, 150, 200, 250, 300, 400,

SSB/

1800, 2000, 2200, 2400,

2600 Hz

FM

2600, 2800, 3000, 3400,

 

500, 600, 1000, 1500, 2000, 2500

2500 Hz

 

4000, 5000

 

AM

2500, 3000, 4000, 5000

5000 Hz

Low cut-off frequency

 

 

High cut-off frequency

 

Desired signal

Interfering

 

Interfering

signal

 

signal

0 Hz

1 KHz

5 KHz

Note: The cut-off frequencies can be adjusted independently for each operating mode. When you change the operating mode, the previous setting is recalled for each operating mode.

3Turn the HI/SHIFT control clockwise to increase the shift frequency (high), or counterclockwise to decrease the shift frequency (low).

Shift Frequency (Hz)

Default

1000, 1100, 1200, 1300, 1400, 1500,

1600, 1700, 1800, 1900, 2000, 2100, 1500 Hz 2210

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This transceiver has 2 built-in IF filters: A and

B.The IF Filter settings are stored with the last settings of the LO/WIDTH and HI/SHIFT controls.

Press [IF FIL] to toggle between IF Filter setting A and B.

•“” appears when IF filter setting A is selected and “” appears when IF filter setting B is selected.

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