Suggested EQ Settings:
To boost TX audio, turn on the "MIC-EQ" from the display screen function buttons.

Set "SSB out level", menu number 107 to 80
Set "SSB TX BPF", menu number 110 to 300-2700

Set the following menu numbers to the values shown.

(For original FT-991 without updated firmware, menu numbers will be 2 places higher)

Menu Description Value
119 EQ1 Freq 500
120 EQ1 Level 9
121 EQ1 BWTH 8
122 EQ2 Freq 1000
123 EQ2 Level 7
124 EQ2 BWTH 8
125 EQ3 Freq 2000
126 EQ3 Level 5
127 EQ3 BWTH 4
128 EQ1 Freq 100
129 EQ1 Level 10
130 EQ1 BWTH 3
131 EQ2 Freq 700
132 EQ2 Level -3
133 EQ2 BWTH 7
134 EQ3 Freq 3200
135 EQ3 Level 10
136 EQ3 BWTH 2


Yaesu Serial Number Info:
Year, Month, Production Number, Unit number

e.g. 4N960040
4 = Year (2004) N = Month (Months start with C for January so N = December) 96 = Production Number and 0040 = Unit number.

C = January, D = February, E = March, F = April, G = May, H = June, I = July, J = August, K = September, L = October, M = November, N = December

Service Menu : WARNING - Do not change the service menu settings unless you are qualified to do so and with all appropriate test equipment.

Power up while holding in FAST, A/B, and A=B buttons
To save changes, press and hold MENU/SETEP button until radio restarts