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Yaesu FT-847
Specifications

Return to FT-847

Discontinued Amateur HF Transceivers 

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FT-847 Specifications

GENERAL
 
Frequency Range Receive:
100 kHz - 30 MHz, 36 - 76, 108 - 174 and 420 - 512 MHz
Frequency Range Transmit
160 to 6 Meters, 2 Meters, 70 Centimeters
Emission Modes:
USB, LSB, CW, AM, FM, F1 (9600 bps Packet),
0
F2 (1200 bps Packet), AFSK
Synthesizer Steps (Min.):
0.1 Hz (CW/SSB), 10 Hz (AM/FM)
Antenna Impedance:
50 Ohm, Unbalanced
Operating Temp. Range:
-10°C to +50°C (14F to 122F)
Frequency Stability:
Better than 2 ppm (0°C to +40°C) (SSB/CW/AM/AFSK)
0
Better than 5ppm (-10°C to +50vC) (SSB/CW/AM/AFSK)
0
Better than 5 ppm(<1 kHz) FM
Power Requirements:
DC 13.8V 10%, Negative Ground
Current Consumption:
Receive (Squelched): 1.5A
0
Receive (Max. Audio): 2.0A
0
Transmit: 22A @ 100W RF Output
Case Size:
10.25 x 3.39 x 10.63 inches WHD (260 x 86 x 270 mm)
Weight:
Approx. 14.4 lbs. (7 kg)
0
TRANSMITTER
 
RF Power Output: 160~6m:
100 Watts (25 Watts AM carrier)
2m/70cm :
50 Watts (12.5 Watts AM carrier)
Modulation Types: SSB:
Balanced Modulator
FM:
Variable Reactance
AM:
Early Stage (Low Level)
FM Maximum Deviation:
5 kHz (2.5 kHz on FM-N)
Spurious Radiation: Harmonics:
At least 40 dB down (1.8 to 29.7 MHz)
0
At least 60 dB down (50/144/430 MHz)
Non-harmonic:
At least 50 dB down (1.8 to 29.7 MHz)
0
At least 60 dB down (50/144/430 MHz)
Carrier Suppression:
At least 40 dB
Opp. Sideband Suppression:
At least 40 dB
3rd-Order IMD:
At least 31 dB down (14 MHz, 100 Watts PEP output)
SSB Frequency Response:
400 Hz to 2600 Hz (-6 dB)
Max. Occupied Bandwidth: SSB:
Less than 3 kHz
CW:
Less than 0.5 kHz
FM:
Less than 16 kHz
Microphone Impedance:
200 Ohm to 10 K Ohm (Supplied Microphone: 600 Ohm)

 

RECEIVER  
Sensitivity:
0 SSB/CW AM-N FM
500 kHz to 1.8 MHz: - 20uV -
1.8 to 28 MHz: 0.25uV 1uV -
28 to 30 MHz: 0.25uV 1uV 0.5uV
50~54 MHz: 0.2uV 0.5uV 0.25uV
144/430 MHz: 0.125uV - 0.16uV
Above specifications are worst-case. SSB/CW/AM-N figures are for 10 dB S/N, 12 dB SINAD on FM
Squelch Sensitivity :
0 SSB/CW/AM FM
500 kHz to 1.8 MHz: 20uV -
1.8 to 28 MHz: 2uV -
28 to 30 MHz: 2.0uV 0.25uV
50 to 54 MHz : 1.0uV 0.2uV
144/430 MHz : 0.5uV 0.16uV
Image Rejection:
Better than 60dB
IF Rejection:
Better than 60dB
Selectivity (-6/-60 dB):
SSB/CW: 2.2 kHz/4.5 kHz
0
CW-N: 0.5 kHz/2.0 kHz (Opt. YF-115C Installed)
0
AM: 9 kHz/20 kHz
0
AM-N: 2.2 kHz/4.5 kHz
0
FM: 15 kHz/30 kHz
0
FM-N: 9 kHz/20 kHz
Audio Output:
At least 1.5W into 8 Ohm @ 10% THD
Audio Output Impedance:
4 to 16 Ohm
Specifications subject to change without notice or obligation.


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