FT-891 Technical Supplement
Alignment
ALIGNMENT-5
1st Local Oscillator Adjustment
Connect the 3.5 mm Plug to KEY jack on the
transceiver.
Connect the RF millivoltmeter to TP1005 on the
MAIN Unit.
Press and hold in the [A], [B] and [C] keys,
w h i l e t u r n i n g t h e r a d i o o n , t o e n t e r t h e
alignment mode.
Rotate the [MULTI] function knob to select the
alignment menu item “02-01 Local 1.8”.
Press and hold the PTT switch, then rotate the
[RF/SQL] knob so that the RF millivoltmeter
reading is “+11.0 dBm ±0.5 dBm” (Lot. 1-10) or
“+7.0 dBm ±0.5 dBm” (Lot. 11-).
Release the PTT switch.
Rotate the [MULTI] function knob to select the
alignment menu item “02-02 Local HFL”.
Press and hold the PTT switch, then rotate the
[RF/SQL] knob so that the RF millivoltmeter
reading is “+10.0 dBm ±0.5 dBm” (Lot. 1-10) or
“+8.0 dBm ±0.5 dBm” (Lot. 11-).
Release the PTT switch.
Rotate the [MULTI] function knob to select the
alignment menu item “02-03 Local HFM”.
Press and hold the PTT switch, then rotate the
[RF/SQL] knob so that the RF millivoltmeter
reading is “+10.0 dBm ±0.5 dBm” (Lot. 1-10) or
“+9.0 dBm ±0.5 dBm” (Lot. 11-).
Release the PTT switch.
Rotate the [MULTI] function knob to select the
alignment menu item “02-04 Local HFH”.
Press and hold the PTT switch, then rotate the
[RF/SQL] knob so that the RF millivoltmeter
reading is “+10.0 dBm ±0.5 dBm” (Lot. 1-10) or
“+8.0 dBm ±0.5 dBm” (Lot. 11-).
Release the PTT switch.
Rotate the [MULTI] function knob to select the
alignment menu item “02-05 Local 50”.
Press and hold the PTT switch, then rotate the
[RF/SQL] knob so that the RF millivoltmeter
reading is “+7.5 dBm - +8.0 dBm” (Lot. 1-10) or
“+7.0 dBm ±0.5 dBm” (Lot. 11-).
Release the PTT switch.
Alignment Menu Item
RF millivoltmeter
Lot. 1 - 10
Lot. 11 -
02-01 Local 1.8
+11.0 dBm ±0.5 dBm +7.0 dBm ±0.5 dBm
02-02 Local HFL
+10.0 dBm ±0.5 dBm +8.0 dBm ±0.5 dBm
02-03 Local HFM
+10.0 dBm ±0.5 dBm +9.0 dBm ±0.5 dBm
02-04 Local HFH
+10.0 dBm ±0.5 dBm +8.0 dBm ±0.5 dBm
02-05 Local 50
+7.5 dBm - +8.0 dBm +7.0 dBm ±0.5 dBm
Disconnect the 3.5 mm Plug from KEY jack on
the transceiver.
Press and hold in the [F] key to save the new
setting and exit the alignment mode.
TP1005
Summary of Contents for FT-891
Page 7: ...BLOCK DIAGRAM 1 FT 891 Technical Supplement Block Diagram...
Page 8: ...CONNECTION DIAGRAM 1 FT 891 Technical Supplement Connection Diagram...
Page 28: ...FT 891 Technical Supplement MAIN 1 Circuit Diagram MAIN Unit Lot 1 3...
Page 30: ...FT 891 Technical Supplement MAIN 3 Parts Layout side B MAIN Unit Lot 1 3 1 2 3 4 5 a b c d e f...
Page 31: ...FT 891 Technical Supplement MAIN 4 Circuit Diagram MAIN Unit Lot 4 6...
Page 32: ...FT 891 Technical Supplement MAIN 5 MAIN Unit Lot 4 6 Parts Layout side A 1 2 3 4 5 A B C D E F...
Page 33: ...FT 891 Technical Supplement MAIN 6 MAIN Unit Lot 4 6 Parts Layout side B 1 2 3 4 5 a b c d e f...
Page 34: ...FT 891 Technical Supplement MAIN 7 Circuit Diagram MAIN Unit Lot 7 10...
Page 37: ...FT 891 Technical Supplement MAIN 10 Circuit Diagram MAIN Unit Lot 11...
Page 38: ...FT 891 Technical Supplement MAIN 11 MAIN Unit Lot 11 Parts Layout side A 1 2 3 4 5 A B C D E F...
Page 39: ...FT 891 Technical Supplement MAIN 12 MAIN Unit Lot 11 Parts Layout side B 1 2 3 4 5 a b c d e f...
Page 66: ...FT 891 Technical Supplement LOCAL 1 Circuit Diagram LOCAL Unit...
Page 67: ...FT 891 Technical Supplement LOCAL 2 Parts Layout LOCAL Unit side A side B 1 2 A B 1 2 a b...
Page 71: ...FT 891 Technical Supplement PA 1 Circuit Diagram PA Unit...
Page 72: ...FT 891 Technical Supplement PA 2 Parts Layout side A PA Unit 1 2 3 4 5 A B C D E...
Page 73: ...FT 891 Technical Supplement PA 3 Parts Layout side B PA Unit 1 2 3 4 5 a b c d e...
Page 81: ...FT 891 Technical Supplement DSP 1 Circuit Diagram DSP Unit Lot 1 10...
Page 83: ...FT 891 Technical Supplement DSP 3 Circuit Diagram DSP Unit Lot 11...
Page 89: ...FT 891 Technical Supplement PANEL 1 Circuit Diagram PANEL Unit...
Page 96: ...SW B 1 SW B Unit Circuit Diagram Parts Layout FT 891 Technical Supplement...
