Specifications - Yaesu FT-991A Operating Manual

Specifications

General
Rx Frequency Range:
Tx Frequency Ranges:
Frequency Stability:
Operating Temperature Range:
Emission Modes:
Frequency Steps:
Antenna Impedance:
Power Consumption ( Approx. ) :
Supply Voltage:
Dimensions ( WxHxD ) :
Weight ( Approx. ) :
Transmitter
Power Output:
Modulation Types:
Maximum FM Deviation:
Harmonic Radiation:
SSB Carrier Suppression:
Undesired Sideband Suppression:
Bandwidth:
Audio Response ( SSB ) :
Microphone Impedance:
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30 kHz - 56 MHz, 118 MHz - 164 MHz, 420 MHz - 470 MHz ( operating )
1.8 MHz - 54 MHz, 144 MHz - 148 MHz, 430 MHz - 450 MHz ( specified per-
formance, Amateur bands only )
1.8 MHz - 54 MHz, 144 MHz - 148 MHz, 430 MHz - 450 MHz ( Amateur bands
only )
±0.5 ppm ( after 1 minute @+14 °F to +122 °F [–10 °C to +50 °C] )
+14 °F to +122 °F ( –10 °C to +50 °C )
A1A ( CW ) , A3E ( AM ) , J3E ( LSB, USB ) , F3E ( FM ) , F7W ( C4FM ) , F2D
5/10 Hz ( SSB, CW, & AM ) , 100 Hz ( FM, C4FM )
50 Ohms, unbalanced
16.7 - 150 Ohms, unbalanced ( Tuner ON, 1.8 MHz - 30 MHz Amateur bands )
25 - 100 Ohms, unbalanced ( Tuner ON, 50 MHz Amateur band )
Rx ( no signal ) 1.8 A
Rx ( signal present )
2.2 A
23 A ( HF/50 MHz 100 W ) , 15 A ( 144/430 MHz 50 W )
Tx
DC 13.8 V ± 15% ( Negative Ground )
9.0" x 3.2" x 10.0" ( 229 x 80 x 253 mm )
9.5 lbs ( 4.3 kg )
5 - 100 watts ( 2 - 25 watts AM carrier )
J3E ( SSB ) : Balanced,
A3E ( AM ) : Low-Level ( Early Stage ) ,
F3E ( FM ) : Variable Reactance
F7W ( C4FM ) : 4-level FSK
±5.0 kHz/±2.5 kHz
Better than –50 dB ( 1.8 MHz - 30 MHz Amateur bands )
Better than –63 dB ( 50 MHz Amateur band )
Better than –60 dB ( 144 MHz, 430 MHz Amateur bands )
At least 50 dB below peak output
At least 50 dB below peak output
3 kHz ( LSB/USB ) , 500 Hz ( CW ) , 6 kHz ( AM ) , 16 kHz ( FM/C4FM )
Not more than –6 dB from 300 to 2700 Hz
600 Ohms ( 200 to 10 kOhms )
FT- 991 Operating Manual