Yaesu FT-991 Operating Manual
Also see for FT-991: ManualManualOperating manualReference bookInstruction manual
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Contents
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Page 91FT-991 O PERA T I N G M A N U A LS pecificationSGeneralRx Frequency Range: 30 kHz - 55.999995 MHz118 MHz - 163.999995 MHz420 MHz - 469.999995 MHzTx Frequency Ranges: 1.8 MHz - 430 MHz (Amateur bands only)Frequency Stability: ±0.5 ppm (after 1 minute @+14 °F to +140 °F [–10 °C to +60 °C])Operating Temperature Range: +14 °F to +122 °F (–10 °C to +50 °C)Emission Modes: A1A, A3E, J3E, F3E, F7W, F1B, F1D, F2D, G1BFrequency Steps: 5/10 Hz (SSB, CW), 50/100 Hz (AM, FM)Antenna Impedance: 50 Ohms, unbalanced16.7 - 150 Ohms, unbalanced (1.8 MHz - 29.7 MHz)25 - 100 Ohms, unbalanced (50 MHz - 54 MHz)(Tuner ON, 1.8 MHz - 50 MHz Amateur bands, TX only)Power Consumption (Approx.): Rx (no signal) 1.8 ARx (signal present) 2.2 ATx (HF/50 MHz, 100 W) 22 A, (144/430 MHz, 50 W) 15 ASupply Voltage: DC 13.8 V ± 15 % (Negative Ground)Dimensions (WxHxD): 9.01” x 3.15” x 9.96” (229 x 80 x 253 mm)Weight (Approx.): 9.46 lbs (4.3 kg)TransmitterPower Output: HF/50 MHz: 5 - 100 watts (2.5 - 25 watts AM carrier)144/430 MHz: 5 - 50 watts (2.5 - 12.5 watts AM carrier)Modulation Types: J3E: Balanced,A3E: Low-Level (Early Stage),F3E: Variable ReactanceF7W: 4FSK (C4FM)Maximum FM Deviation: ±5.0 kHz/±2.5 kHzHarmonic Radiation: Better than –50 dB (below 30 MHz)Better than –60 dB (above 30 MHz)SSB Carrier Suppression: At least 50 dB below peak outputUndesired Sideband Suppression: At least 50 dB below peak outputBandwidth: 3 kHz (LSB/USB), 500 Hz (CW), 6 kHz (AM), 16 kHz (FM)Audio Response (SSB): Not more than –6 dB from 300 to 2700 HzMicrophone Impedance: 600 Ohms (200 to 10 kOhms) |
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