2
FT-847 O
PERATING
M
ANUAL
G
ENERAL
Frequency Range
:
Receive
100 kHz - 36.99 MHz
37 - 76 MHz
108 - 174 MHz
420 - 512 MHz
Transmit
160 - 6 Meters
2 Meters
70 Centimeters
(Amateur bands only)
5.1675 MHz (Alaska Emergency Channel)
Emission Modes
:
USB, LSB, CW, AM, FM, F1 (9600 bps Packet), F2 (1200 bps Packet), AFSK
Synthesizer Steps
(Min.):
0.1 Hz (CW/SSB)
10 Hz (AM/FM)
Antenna Impedance
:
50
Ω
, Unbalanced
Operating Temp. Range
:
−
10ºC to +50ºC (14ºF to 122ºF)
Frequency Stability
:
Better than ±2 ppm (0ºC to +40ºC) SSB/CW/AM/AFSK
Better than ±5 ppm (
−
10ºC to +50ºC) SSB/CW/AM/AFSK
Better than ±{1 kHz ±5 ppm} FM
Power Requirements
:
DC 13.8V —
--- ±10%, Negative Ground
Current Consumption
:
Receive (Squelched): 1.5A
Receive (Max. Audio): 2.0A
Transmit: 22A (@ 100W RF output)
Case Size
:
260(W) x 86(H) x 270(D) mm (10.24” x 3.39” x 10.63”)
Weight
:
Approximately 7 kg (14.4 lbs.)
T
RANSMITTER
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 - 29.7 MHz)
At least 60 dB down (50/144/430 MHz)
Non-harmonic: At least 50 dB down (1.8 - 29.7 MHz)
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, 100W PEP output)
SSB Frequency Response
:
400 Hz - 2600 Hz (
−
6 dB)
Microphone Impedance
:
200
Ω
- 10k
Ω
(Supplied microphone: 600
Ω
)
Specifications