Instruction Manual
Page 5
... 46 ■ AT-180 internal switch description 68 ■ IF filter selection 47 ■ Optional AH-4 automatic antenna tuner D IF filter selection 47 operation 69 D Filter passband width setting 48 D AH-4 operation 69 D IF filter shape (SSB/CW only 48 ■ Noise blanker 49 10 SET...Command table 89 D Programming in VFO mode 62 D Programming in memory mode 62 D Band stacking register 91 15 D Data mode with filter width setting 91 ■ Frequency copying 63 D Copying in memory mode 63 15 SPECIFICATIONS 92 16 ■ Memory clearing 64 ■ General...
... 46 ■ AT-180 internal switch description 68 ■ IF filter selection 47 ■ Optional AH-4 automatic antenna tuner D IF filter selection 47 operation 69 D Filter passband width setting 48 D AH-4 operation 69 D IF filter shape (SSB/CW only 48 ■ Noise blanker 49 10 SET...Command table 89 D Programming in VFO mode 62 D Programming in memory mode 62 D Band stacking register 91 15 D Data mode with filter width setting 91 ■ Frequency copying 63 D Copying in memory mode 63 15 SPECIFICATIONS 92 16 ■ Memory clearing 64 ■ General...
Instruction Manual
Page 6
...reduces pulse-type noise such as that generated by automobile ignition systems. This function is the Noise Reduction function? TWIN PBT - band width and mode. push again to return to normal operation. • When entering the noise reduction set mode, the noise blanker function...50 VOX 9 28 F-INP ENT BAND P.AMP ATT M-CH/RIT SET o iu y q PASSBAND TUNING CONTROLS [TWIN PBT] Adjust the receiver's DSP filter passband width. (p. 46) • The limit of the desired signal. The Noise Reduction (NR) function removes random noise from the receiver passband. to allow ...
...reduces pulse-type noise such as that generated by automobile ignition systems. This function is the Noise Reduction function? TWIN PBT - band width and mode. push again to return to normal operation. • When entering the noise reduction set mode, the noise blanker function...50 VOX 9 28 F-INP ENT BAND P.AMP ATT M-CH/RIT SET o iu y q PASSBAND TUNING CONTROLS [TWIN PBT] Adjust the receiver's DSP filter passband width. (p. 46) • The limit of the desired signal. The Noise Reduction (NR) function removes random noise from the receiver passband. to allow ...
Instruction Manual
Page 7
... a numeric frequency. Low frequency High frequency 4 What is the RIT function? p. 51) Rotate to adjust the notch filter frequency to reject an interfering signal while the manual notch function is ON. • The filter width can act as the memory channel control or RIT control. • The RIT function should be turned ON...
... a numeric frequency. Low frequency High frequency 4 What is the RIT function? p. 51) Rotate to adjust the notch filter frequency to reject an interfering signal while the manual notch function is ON. • The filter width can act as the memory channel control or RIT control. • The RIT function should be turned ON...
Instruction Manual
Page 38
... constant is selected, and no indicator appears when the slow time constant is set audio to select the desired band. Band keys MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 3.5 SPLIT 3 7 MW 4 10 M-CL 5 14 AGC 6 18 COMP271 . D Convenient functions for receive • Preamp ...to enter the manual notch filter set mode, then rotate [DIAL] to select the filter width from narrow, middle and wide. • Auto notch filter (p. 51) ➥ Push ANF METER to turn the auto notch filter ON or OFF. • " " appears when the auto notch filter is set mode, then ...
... constant is selected, and no indicator appears when the slow time constant is set audio to select the desired band. Band keys MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 3.5 SPLIT 3 7 MW 4 10 M-CL 5 14 AGC 6 18 COMP271 . D Convenient functions for receive • Preamp ...to enter the manual notch filter set mode, then rotate [DIAL] to select the filter width from narrow, middle and wide. • Auto notch filter (p. 51) ➥ Push ANF METER to turn the auto notch filter ON or OFF. • " " appears when the auto notch filter is set mode, then ...
Instruction Manual
Page 41
to select the filter width from 6 to 60 wpm. 17 • FL : Full break-in • SE : Semi break-in • OF : Break-in 10 Hz steps. 7 • " " appears when the noise blanker is set to normal operation. ual notch filter set mode, then rotate [DIAL] to turn the attenu- w R otate [M-CH] to ... OFF. • " " appears when the attenuator is set to ON. • Manual notch filter (pgs. 51, 52) ➥ Push MNF to turn the manual notch filter ON or OFF. • " " appears when the manual notch filter is set to normal operation. 18 19 20 21 36 to select the time con...
to select the filter width from 6 to 60 wpm. 17 • FL : Full break-in • SE : Semi break-in • OF : Break-in 10 Hz steps. 7 • " " appears when the noise blanker is set to normal operation. ual notch filter set mode, then rotate [DIAL] to turn the attenu- w R otate [M-CH] to ... OFF. • " " appears when the attenuator is set to ON. • Manual notch filter (pgs. 51, 52) ➥ Push MNF to turn the manual notch filter ON or OFF. • " " appears when the manual notch filter is set to normal operation. 18 19 20 21 36 to select the time con...
Instruction Manual
Page 44
... and hold AGC for 1 sec. to enter the noise reduction level set mode, then rotate [DIAL] to adjust the noise reduction level. • Manual notch filter (pgs. 51, 52) ➥ Push MNF to turn the attenuator OFF. • " " appears when the attenuator is set to ON. • Twin PBT (... receive • Preamp and attenuator (p. 45) ➥ Push P.AMP ATT to select the desired band. e R otate [DIAL] to normal operation. 39 to select the filter width from your RTTY terminal or TNC, consult the manual that comes with the RTTY terminal or TNC. Band keys MODE TS TUNER...
... and hold AGC for 1 sec. to enter the noise reduction level set mode, then rotate [DIAL] to adjust the noise reduction level. • Manual notch filter (pgs. 51, 52) ➥ Push MNF to turn the attenuator OFF. • " " appears when the attenuator is set to ON. • Twin PBT (... receive • Preamp and attenuator (p. 45) ➥ Push P.AMP ATT to select the desired band. e R otate [DIAL] to normal operation. 39 to select the filter width from your RTTY terminal or TNC, consult the manual that comes with the RTTY terminal or TNC. Band keys MODE TS TUNER...
Instruction Manual
Page 46
... 4 selectable values: 170, 200, 425 and 850 Hz. n (normal) : Key open/close = Mark/Space r (reverse) : Key open/close = Space/Mark MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 3.5 SPLIT 3 7 MW 4 10 M-CL 5 14 AGC 6 18 COMP271 RIT . RTTY mark tone (RTTY mode) This item...RTTY-R) mode is selected, push and hold M-CL for 1 sec. RTTY shift width (RTTY mode) This item adjusts the RTTY shift width. e R otate [DIAL] to exit the quick set mode Set the RTTY key polarity, shift width and mark tone. RTTY key polarity (RTTY mode) This item selects the RTTY...
... 4 selectable values: 170, 200, 425 and 850 Hz. n (normal) : Key open/close = Mark/Space r (reverse) : Key open/close = Space/Mark MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 3.5 SPLIT 3 7 MW 4 10 M-CL 5 14 AGC 6 18 COMP271 RIT . RTTY mark tone (RTTY mode) This item...RTTY-R) mode is selected, push and hold M-CL for 1 sec. RTTY shift width (RTTY mode) This item adjusts the RTTY shift width. e R otate [DIAL] to exit the quick set mode Set the RTTY key polarity, shift width and mark tone. RTTY key polarity (RTTY mode) This item selects the RTTY...
Instruction Manual
Page 47
...; Push NB to turn the auto notch filter ON or OFF. • " " appears when the auto notch filter is set to ON. ➥ Push and hold P.AMP ATT for 1 sec. to select AM mode. ual notch filter set mode, then rotate [DIAL] to select the filter width from narrow, middle and wide. •... Auto notch filter (p. 51) ➥ Push ANF METER to turn the noise blanker ON or OFF. • " " ...
...; Push NB to turn the auto notch filter ON or OFF. • " " appears when the auto notch filter is set to ON. ➥ Push and hold P.AMP ATT for 1 sec. to select AM mode. ual notch filter set mode, then rotate [DIAL] to select the filter width from narrow, middle and wide. •... Auto notch filter (p. 51) ➥ Push ANF METER to turn the noise blanker ON or OFF. • " " ...
Instruction Manual
Page 51
The limit of the variable range is half of the passband width, and PBT is used, the audio tone may be set to reject interference. GENE ...; Twin PBT operation The general PBT (Passband Tuning) function electronically narrows the IF passband width by shifting the IF frequency slightly outside of the IF filter passband to the center positions (PBT setting is cleared) when there is no interference. ... the same position, PBT functions as an IF shift control. MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 3.5 SPLIT 3 7 MW 4 10 M-CL 5 14 AGC 6 18 COMP271 RIT .
The limit of the variable range is half of the passband width, and PBT is used, the audio tone may be set to reject interference. GENE ...; Twin PBT operation The general PBT (Passband Tuning) function electronically narrows the IF passband width by shifting the IF frequency slightly outside of the IF filter passband to the center positions (PBT setting is cleared) when there is no interference. ... the same position, PBT functions as an IF shift control. MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 3.5 SPLIT 3 7 MW 4 10 M-CL 5 14 AGC 6 18 COMP271 RIT .
Instruction Manual
Page 52
...steps. A total of 32 passband widths are available. A total of 41 passband widths are available. D IF filter selection q Push MODE several times to 2700 Hz in 50 or 100 Hz steps. 5 FUNCTIONS FOR RECEIVE ■ IF filter selection The transceiver has 3 passband IF filter widths for each mode. For AM mode..., the passband width can be set from 200 to select the desired mode. For SSB and CW modes, the passband width can be set from 50 to 3600 Hz...
...steps. A total of 32 passband widths are available. A total of 41 passband widths are available. D IF filter selection q Push MODE several times to 2700 Hz in 50 or 100 Hz steps. 5 FUNCTIONS FOR RECEIVE ■ IF filter selection The transceiver has 3 passband IF filter widths for each mode. For AM mode..., the passband width can be set from 200 to select the desired mode. For SSB and CW modes, the passband width can be set from 50 to 3600 Hz...
Instruction Manual
Page 53
...17 18 19 20 21 48 to select the desired IF filter from the speaker depending on the IF filter passband width setting. t Rotate [DIAL] to select the desired filter shape, either soft or sharp • Push and hold FILTER for 1 sec. MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 ...sound may not come from Wide, Middle or Narrow. 5 FUNCTIONS FOR RECEIVE D Filter passband width setting q P ush MODE several times to the default value. q P ush MODE several times to the default value. to enter filter set to select "SHAPE." to return to select SSB or CW mode. y ...
...17 18 19 20 21 48 to select the desired IF filter from the speaker depending on the IF filter passband width setting. t Rotate [DIAL] to select the desired filter shape, either soft or sharp • Push and hold FILTER for 1 sec. MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 ...sound may not come from Wide, Middle or Narrow. 5 FUNCTIONS FOR RECEIVE D Filter passband width setting q P ush MODE several times to the default value. q P ush MODE several times to the default value. to enter filter set to select "SHAPE." to return to select SSB or CW mode. y ...
Instruction Manual
Page 54
... the desired set mode. RIT GENE SCAN 8 24 MNF 0 50 VOX 9 28 F-INP ENT BAND P.AMP ATT M-CH/RIT SET Appears Appears MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 3.5 SPLIT 3 7 MW 4 10 M-CL 5 14 AGC 6 18 COMP271 . RIT GENE SCAN 8 24 MNF 0 50 VOX 9 28...NB to exit the noise blanker set item. NB LEVEL This item adjusts the noise blanker level. e R otate [DIAL] to match the pulse width. NB WIDTH This item allows adjustment of the blank time for noise blanker to adjust the desired condition. • Push and hold NB for 1 sec. The...
... the desired set mode. RIT GENE SCAN 8 24 MNF 0 50 VOX 9 28 F-INP ENT BAND P.AMP ATT M-CH/RIT SET Appears Appears MODE TS TUNER FILTER SPCH NB NR ANF METER V/M 1 1.8 A=/B 2 3.5 SPLIT 3 7 MW 4 10 M-CL 5 14 AGC 6 18 COMP271 . RIT GENE SCAN 8 24 MNF 0 50 VOX 9 28...NB to exit the noise blanker set item. NB LEVEL This item adjusts the noise blanker level. e R otate [DIAL] to match the pulse width. NB WIDTH This item allows adjustment of the blank time for noise blanker to adjust the desired condition. • Push and hold NB for 1 sec. The...
Instruction Manual
Page 57
... may be heard. to return to turn the manual notch function OFF if necessary. • " " disappears. ual notch filter set mode. e Push MNF to select the filter width from the DSP unit and does not indicate an equipment malfunction. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21... 52 This comes from nar- w Rotate [DIAL] to exit the manual notch filter set mode. • The manual notch ...
... may be heard. to return to turn the manual notch function OFF if necessary. • " " disappears. ual notch filter set mode. e Push MNF to select the filter width from the DSP unit and does not indicate an equipment malfunction. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21... 52 This comes from nar- w Rotate [DIAL] to exit the manual notch filter set mode. • The manual notch ...
Instruction Manual
Page 77
... tone level limit (CW mode) Turn the CW side tones output level limiting capability ON and OFF. oF : Twin peak filter is OFF. NOTE: The RTTY mark frequency (2125 Hz) and shift width (170 Hz) are 3 selectable values: 1275, 1615 and 2125 Hz. NOTE: 2125 Hz is automatically set when the twin... peak filter is linked to the specified level-further rotation will not increase the volume of the CW side tones. Key speed...
... tone level limit (CW mode) Turn the CW side tones output level limiting capability ON and OFF. oF : Twin peak filter is OFF. NOTE: The RTTY mark frequency (2125 Hz) and shift width (170 Hz) are 3 selectable values: 1275, 1615 and 2125 Hz. NOTE: 2125 Hz is automatically set when the twin... peak filter is linked to the specified level-further rotation will not increase the volume of the CW side tones. Key speed...
Instruction Manual
Page 78
RTTY key polarity (RTTY mode) This item selects the RTTY keying polarity. When reverse polarity is selected, Mark and Space are 4 selectable values: 170, 200, 425 and 850 Hz. NOTE: 170 Hz is ON. n (normal) : Key open/close = Mark/Space r (reverse) : Key open/close = Space/Mark 170 Hz (default) NORMAL (default) 73 10 SET MODE ■ Quick set when the twin peak filter is automatically set mode (Continued) RTTY shift width (RTTY mode) This item adjusts the RTTY shift width. There are reversed. Normal or reverse keying polarity can be selected.
RTTY key polarity (RTTY mode) This item selects the RTTY keying polarity. When reverse polarity is selected, Mark and Space are 4 selectable values: 170, 200, 425 and 850 Hz. NOTE: 170 Hz is ON. n (normal) : Key open/close = Mark/Space r (reverse) : Key open/close = Space/Mark 170 Hz (default) NORMAL (default) 73 10 SET MODE ■ Quick set when the twin peak filter is automatically set mode (Continued) RTTY shift width (RTTY mode) This item adjusts the RTTY shift width. There are reversed. Normal or reverse keying polarity can be selected.
Instruction Manual
Page 94
... function (0=OFF, 1=ON) 47 Break-IN function (0=OFF, 1=semi BK-IN, 2=full BK-IN) 48 Manual notch (0=OFF, 1=ON) 4F Twin peak filter (0=OFF, 1=ON) 50 Dial lock function (0=OFF, 1=ON) 19 00 Read the transceiver ID 1A 00 Set/read memory contents An additional code, 0001...Select RTTY mode (for transceive operation) 07 Select CW-R mode (for transceive operation) 08 Select RTTY-R mode (for details) 02 Set/read the selected filter width (SSB, CW, RTTY: 0=50 Hz to 255=max. Read operating mode 05 - CW) 09 CW Pitch setting (0=300 Hz to 255=900 Hz (5...
... function (0=OFF, 1=ON) 47 Break-IN function (0=OFF, 1=semi BK-IN, 2=full BK-IN) 48 Manual notch (0=OFF, 1=ON) 4F Twin peak filter (0=OFF, 1=ON) 50 Dial lock function (0=OFF, 1=ON) 19 00 Read the transceiver ID 1A 00 Set/read memory contents An additional code, 0001...Select RTTY mode (for transceive operation) 07 Select CW-R mode (for transceive operation) 08 Select RTTY-R mode (for details) 02 Set/read the selected filter width (SSB, CW, RTTY: 0=50 Hz to 255=max. Read operating mode 05 - CW) 09 CW Pitch setting (0=300 Hz to 255=900 Hz (5...
Instruction Manual
Page 95
...TS (0=OFF, 1=Low, 2=High) 0334 Set/read 1/4 dial speed set (see next page for detail) 05 Set/read DSP filter shape (0=Sharp, 1=Soft) 06 Set/read manual notch width (0=Wide, 1=Mid., 2=Nar.) 1C 00 Set/read the transceiver's condition (0=Rx, 1=Tx) 01 Set/read antenna tuner condition .../read CW side tone level limit (0=OFF, 1=ON) 0307 Set/read Twin peak filter (0=OFF, 1=ON) 0308 Set/read RTTY mark frequency (0=1275 Hz, 1=1615 Hz, 2=2125 Hz) 0309 Set/read RTTY shift width (0=170 Hz, 1=200 Hz, 2=425 Hz, 3=850 Hz) 0310 Set/read ...
...TS (0=OFF, 1=Low, 2=High) 0334 Set/read 1/4 dial speed set (see next page for detail) 05 Set/read DSP filter shape (0=Sharp, 1=Soft) 06 Set/read manual notch width (0=Wide, 1=Mid., 2=Nar.) 1C 00 Set/read the transceiver's condition (0=Rx, 1=Tx) 01 Set/read antenna tuner condition .../read CW side tone level limit (0=OFF, 1=ON) 0307 Set/read Twin peak filter (0=OFF, 1=ON) 0308 Set/read RTTY mark frequency (0=1275 Hz, 1=1615 Hz, 2=2125 Hz) 0309 Set/read RTTY shift width (0=170 Hz, 1=200 Hz, 2=425 Hz, 3=850 Hz) 0310 Set/read ...
Instruction Manual
Page 96
....400000 - 25.099999 09 28 MHz 28.000000 - 29.999999 10 50 MHz 50.000000 - 54.000000 11 General Other than above D Data mode with filter width setting The following data sequence is fixed as the register code) as follows are used when sending or reading the data mode with...
....400000 - 25.099999 09 28 MHz 28.000000 - 29.999999 10 50 MHz 50.000000 - 54.000000 11 General Other than above D Data mode with filter width setting The following data sequence is fixed as the register code) as follows are used when sending or reading the data mode with...