Kenwood TS-480SAT User Manual Page 53
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45
REJECTING INTERFERENCE
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■ FM
In FM mode, you cannot change the reception IF filter
bandwidth. The bandwidth is fixed at 12 kHz.
IF SHIFT (SSB/ CW/ FSK)
Shifting the center frequency of the filter pass band is
an additional method of removing adjacent frequency
interference. Shifting this center frequency does not
change the current reception frequency.
To remove interference that is higher in frequency
than the desired signal, turn the IF SHIFT control
counterclockwise. To remove interference that is
lower in frequency than the desired signal, turn the IF
SHIFT control clockwise.
MULTI
IF
SHIFT
Desired
signal
Interfering
signal
IF pass band
IF FILTER
The IF filters are designed for selecting the exact
range of intermediate frequencies that are sent to the
next stage in the receive circuit. Interference
adjacent to the desired signal can be reduced by
selecting a narrow bandwidth filter and/ or shifting the
center frequency of the filter.
To more effectively remove interference, combine the
IF filtering and the DSP filtering (AF) described on
pages 46 and 47.
CHANGING THE IF FILTER BANDWIDTH
When adjacent frequency interference is present at
both sides of the desired signal, narrowing IF filter
bandwidth may be the best way to remove the
interference. Changing the filter bandwidth will not
effect the current reception frequency.
You can install 2 optional IF filters for SSB, CW, and
FSK modes. After installing the optional filters
{page 81}, the transceiver automatically recognizes
what type of optional filters are installed.
■ SSB/ AM
When you operate the transceiver in SSB or AM
mode, you can manually select the wide or narrow
filter.
Press [FIL/ NAR] (1 s) to select another IF filter.
• Each press of [FIL/ NAR] (1 s) changes “ ”
(Normal) / “NAR”, then back to “ ” (Normal).
• If Menu No. 17 is ON (default is OFF) and 2 IF
filters have been installed, you can select
secondary IF filter. In this case, each press of
[FIL/ NAR] (1 s) changes “ ” (Normal) / “NAR”
/ “NAR 2”, then back to “ ” (Normal).
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Optional YF-107SN filter must be installed.
2
Optional YF-107C filter must be installed and Menu No. 17 must
be set to ON.
3
Optional YF-107CN filter must be installed and Menu No. 17
must be set to ON.
■ CW/ FSK
When you operate in CW or FSK mode, the wide filter
or narrow filter is automatically selected according to
the DSP filter bandwidth that you select.
The following table describes how the optional filter is
selected as you change the bandwidth of DSP filter.
You cannot manually select the IF filter. To change
the DSP filter bandwidth, refer to “CHANGING THE
DSP FILTER BANDWIDTH” {page 46}.
- TS-480HX 1
- TS-480SAT 1
- FCC WARNING 2
- BY THE FCC 2
- THANK YOU 3
- PRECAUTIONS 5
- CONTENTS 6
- INSTALLATION 9
- 1 INSTALLATION 10
- ANTENNA CONNECTION 10
- GROUND CONNECTION 10
- IGNITION NOISE 10
- DC POWER CABLE CONNECTION 10
- )renutannetnalanretxenaroF( 13
- TX/ RX UNIT 15
- REMOTE CONTROL PANEL 15
- YOUR FIRST QSO 16
- 2 YOUR FIRST QSO 17
- TRANSMISSION 17
- GETTING ACQUAINTED 18
- 3 GETTING ACQUAINTED 19
- LCD DISPLAY 21
- REMOTE CONTROL PANEL (REAR) 25
- MICROPHONE 25
- OPERATING BASICS 26
- 4 OPERATING BASICS 27
- SELECTING A BAND 27
- SELECTING A MODE 27
- ADJUSTING SQUELCH 27
- SELECTING A FREQUENCY 27
- SELECTING TRANSMISSION POWER 28
- MICROPHONE GAIN 29
- MENU SETUP 30
- 5 MENU SETUP 31
- MENU CONFIGURATION 31
- )1ECIOV( 33
- )INOMXR( 33
- ALPHABETICAL FUNCTION LIST 34
- BASIC COMMUNICATIONS 35
- 6 BASIC COMMUNICATIONS 36
- AUTO ZERO-BEAT 37
- ENHANCED COMMUNICATIONS 38
- 7 ENHANCED COMMUNICATIONS 39
- TRANSMITTING A TONE 40
- TONE FREQ. ID SCAN 40
- CTCSS FREQ. ID SCAN 41
- COMMUNICATING AIDS 42
- 8 COMMUNICATING AIDS 43
- AGC (AUTOMATIC GAIN CONTROL) 43
- VOX (VOICE-OPERATED TRANSMIT) 44
- SPEECH PROCESSOR 45
- TX Filter Bandwidth (SSB/ AM) 46
- TX Equalizer (SSB/ FM/ AM) 46
- Frequency Response Curves 46
- CHANGING KEYING SPEED 47
- AUTO WEIGHTING 47
- BUG KEY FUNCTION 48
- CW MESSAGE MEMORY 48
- FREQUENCY CORRECTION FOR CW 49
- AUTO CW TX IN SSB MODE 49
- MIC UP/ DWN KEY PADDLE MODE 49
- SPECIALIZED COMMUNICATIONS 50
- 9 SPECIALIZED COMMUNICATIONS 51
- SLOW SCAN TV/ FACSIMILE 52
- REJECTING INTERFERENCE 53
- 10 REJECTING INTERFERENCE 54
- BEAT CANCEL (SSB/ FM/ AM) 55
- NOISE REDUCTION (ALL MODES) 55
- PRE-AMPLIFIER 57
- ATTENUATOR 57
- CW REVERSE (RECEPTION) 57
- MEMORY FEATURES 58
- 11 MEMORY FEATURES 59
- MEMORY RECALL AND SCROLL 59
- MEMORY TRANSFER 60
- STORING FREQUENCY RANGES 61
- MEMORY CHANNEL LOCKOUT 62
- ERASING MEMORY CHANNELS 62
- MEMORY CHANNEL NAME 62
- STORING INTO QUICK MEMORY 63
- TEMPORARY FREQUENCY CHANGES 63
- QUICK MEMORY ➡ VFO TRANSFER 63
- VFO SCAN 64
- PROGRAM SCAN 64
- 12 SCAN 65
- PROGRAM SCAN PARTIALLY SLOWED 65
- SCAN HOLD 65
- SCAN RESUME METHOD 66
- ALL-CHANNEL SCAN 66
- GROUP SCAN 67
- OPERATOR CONVENIENCES 68
- 13 OPERATOR CONVENIENCES 69
- BEEP FUNCTION 70
- BRIGHTNESS 71
- KEY ILLUMINATION 71
- FREQUENCY LOCK FUNCTION 71
- TUNING CONTROL LOCK FUNCTION 71
- EQUALIZING RECEIVING AUDIO 72
- SETTING UP 74
- USING QUICK TRANSFER 74
- COMMUNICATION PARAMETERS 75
- RECORDING MESSAGES 76
- MESSAGE PLAYBACK 77
- CONSTANT RECORDING 77
- VOICE GUIDE 78
- CROSSBAND REPTEATER 79
- DX PACKETCLUSTER TUNE 80
- SKY COMMAND II (K-TYPE ONLY) 81
- SKY COMMAND II DIAGRAM 81
- PREPARATION 81
- CONTROL OPERATION 81
- USING TH-D7A AS A COMMANDER 82
- To COM port 84
- Straight-wired 84
- Linear Amp 85
- Use the supplied 85
- TS-480HX/ SAT 85
- MCP/ TNC 86
- DATA connector 86
- (Front view) 86
- ANT 1 connector 86
- TS-480 transceiver 87
- TM-D700 transceiver 87
- Cross-wired cable 87
- INSTALLING OPTIONS 89
- 15 INSTALLING OPTIONS 90
- TROUBLESHOOTING 91
- 16 TROUBLESHOOTING 92
- INITIAL SETTINGS 96
- PARTIAL RESET 96
- FULL RESET 96
- OPTIONAL ACCESSORIES 98
- SPECIFICATIONS 99
- 20 SPECIFICATIONS 100
- 19 INDEX 102
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