1St Local Oscillator Adjustment - Yaesu FT-991A Technical Supplement

1st Local Oscillator Adjustment

 Connect the RF millivoltmeter to TP1005 on the
MAIN Unit.
 Press and hold in the [A=B], [A/B], and [FAST]
keys, while turning the radio on, to enter the
alignment mode.
 Rotate the [MULTI] Dial knob to select the
alignment menu item "02-01 Local 1.8".
 Press and hold the PTT button, then rotate the
[CLAR/VFO-B] knob so that the RF millivolt-
meter reading is "+10 dBm ±1 dBm".
 Release the PTT button.
 Rotate the [MULTI] Dial knob to select the
alignment menu item "02-02 Local HFL".
 Press and hold the PTT button, then rotate the
[CLAR/VFO-B] knob so that the RF millivolt-
meter reading is "+10 dBm ±1 dBm".
 Release the PTT button.
 Rotate the [MULTI] Dial knob to select the
alignment menu item "02-03 Local HFM".
 Press and hold the PTT button, then rotate the
[CLAR/VFO-B] knob so that the RF millivolt-
meter reading is "+10 dBm ±1 dBm".
 Release the PTT button.
 Rotate the [MULTI] Dial knob to select the
alignment menu item "02-04 Local HFH".
 Press and hold the PTT button, then rotate the
[CLAR/VFO-B] knob so that the RF millivolt-
meter reading is "+10 dBm ±1 dBm".
 Release the PTT button.
 Rotate the [MULTI] Dial knob to select the
alignment menu item "02-05 Local 50".
 Press and hold the PTT button, then rotate the
[CLAR/VFO-B] knob so that the RF millivolt-
meter reading is "+11.5 dBm ±0.5 dBm".
 Release the PTT button.
 Rotate the [MULTI] Dial knob to select the
alignment menu item "02-06 Local 144".
 Press and hold the PTT button, then rotate the
[CLAR/VFO-B] knob so that the RF millivolt-
meter reading is "+10 dBm ±1 dBm".
 Release the PTT button.
 Rotate the [MULTI] Dial knob to select the
alignment menu item "02-07 Local 430".
 Press and hold the PTT button, then rotate the
[CLAR/VFO-B] knob so that the RF millivolt-
meter reading is "+10 dBm ±1 dBm".
 Release the PTT button.
 Press and hold in the [MENU(SETUP)] button
for one second to save the new settings and exit
the alignment mode.
Alignment
Menu Item
02-01 Local 1.8
02-02 Local HFL
02-03 Local HFM
02-04 Local HFH
02-05 Local 50
02-06 Local 144
02-07 Local 430
ALIGNMENT-6
Alignment
RF millivoltmeter
+10 dBm ±1 dBm
+10 dBm ±1 dBm
+10 dBm ±1 dBm
+10 dBm ±1 dBm
+11.5 dBm ±0.5 dBm
+10 dBm ±1 dBm
+10 dBm ±1 dBm
TP1005
FT-99 Technical Supplement
1