Specifications - Yaesu FT-991 Operating Manual

S
pecificationS
Receiver
Circuit Type:
Intermediate Frequencies:
Sensitivity:
Selectivity (WIDTH: Center):
Image Rejection:
Maximum Audio Output:
Audio Output Impedance:
Conducted Radiation:
Specifications are subject to change, in the interest of technical improvement, without notice or obligation, and are
guaranteed only within the amateur bands.
Page 92
SSB/CW/AM: Triple-conversion Superheterodyne
FM: Double-conversion Superheterodyne
69.450 MHz
9.000 MHz (SSB, CW, AM)
24 kHz (SSB, CW, AM)
450 kHz (FM)
SSB/CW (10 dB S+N/N)
0.158 µV (1.8 - 30 MHz) (RF AMP 2 "ON")
0.125 µV (50 - 54 MHz) (RF AMP 2 "ON")
0.125 µV (144 - 146 MHz) (RF AMP 2 "ON")
0.125 µV (430 - 440 MHz) (RF AMP 2 "ON")
AM (10 dB S+N/N, 30 % modulation @400 Hz)
28 µV (0.1 - 1.8 MHz) (RF AMP 2 "ON")
2 µV (1.8 - 30 MHz) (RF AMP 2 "ON")
1 µV (50 - 54 MHz) (RF AMP 2 "ON")
FM (12 dB SINAD)
0.5 µV (1.8 - 30 MHz) (RF AMP 2 "ON")
0.25 µV (50 - 54 MHz) (RF AMP 2 "ON")
0.18 µV (144 - 146 MHz) (RF AMP 2 "ON")
0.18 µV (430 - 440 MHz) (RF AMP 2 "ON")
There is no specification for frequency ranges not listed.
Mode
SSB/CW (Width=2.4 kHz)
CW-N (Width =500 Hz)
AM
FM
FM-N
70 dB or better (1.8 MHz - 50 MHz Amateur bands)
60 dB or better (144/430 MHz Amateur band)
2.5 W into 4 Ohms with 10% THD
4 to 16 Ohms (8 Ohms: nominal)
Less than 4000 uuW
–6 dB –60 dB
2.4 kHz or better 3.6 kHz or less
0.5 kHz or better 750 Hz or less
6 kHz or better 15 kHz or less
12 kHz or better 30 kHz or less
9 kHz or better 25 kHz or less
FT-991 O
peraTing
M
anual