Yaesu FT-991A, Technical Supplement

Page: 17 / 131

Alignment
ALIGNMENT-6
FT-99
1
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
RF millivoltmeter
02-01 Local 1.8 +10 dBm ±1 dBm
02-02 Local HFL +10 dBm ±1 dBm
02-03 Local HFM +10 dBm ±1 dBm
02-04 Local HFH +10 dBm ±1 dBm
02-05 Local 50 +11.5 dBm ±0.5 dBm
02-06 Local 144 +10 dBm ±1 dBm
02-07 Local 430 +10 dBm ±1 dBm
TP1005