the smallest HF/VHF/UHF mobile transceiver
YAESU - FT-857D
The FT-857D, the worlds smallest HF/VHF/UHF mobile transceiver, provides base station-type performance from an ultra-compact package thats ideal for mobile or external battery portable work. Wide frequency coverage, outstandig receiver performance, and the convenience of optional remote-head operation make the FT-857D the experts choice for high-performance mobile operation!
The new FT-857D version includes coverage of the U.S. 60-meter (5 MHz) band, plus the previously-optional DSP circuitry, at no additional cost!
GENERAL
Frequency Range: Receive: 0.1-56, 76-108, 118-164 and 420-470 MHz
Transmit: 160 - 6 Meters including 60 Meters
0 2 Meters
0 70 Centimeters (Amateur bands only)
0 5167.5 kHz: Alaska Emergency Frequency
0 (U.S.A. version only)
Emission Modes: A1 (CW), A3 (AM), A3J (LSB/USB),
0 F1 (9600 bps Packet), F2 (1200 bps Packet), F3 (FM)
Synthesizer Steps (Min.): 10 Hz (CW/SSB), 100 Hz (AM),
0 100 Hz (FM), 100 Hz (WFM)
Antenna Impedance: 50 Ohm, Unbalanced
Operating Temp. Range: -10 °C to +60 °C (14 F to 140 F)
Frequency Stability: Better than ? ppm (-10 °C to +50 °C)
0
Power Requirements: DC 13.8V ?0 %, Negative Ground
Current Consumption: Receive (Squelched): 0.55A,
0 Receive (Max. Audio): 1A
0 Transmit: 22A (@ 100W RF output)
Case Size: 6.1" (W) x 2.0" (H) x 9.2" (D) (155 x 52 x 233 mm)
Weight: 4.6 lb. (2.1 kg.)
0
TRANSMITTER
Power Output: 160 - 6m: 100 Watts (25 Watts AM carrier)
0 2m: 50 Watts (12.5 Watts AM carrier)
0 70cm: 20 Watts (5 Watts AM carrier)
Modulation Types: SSB: Balanced Modulator
FM: Variable Reactance
AM: Early Stage (Low Level)
FM Maximum Deviation: ? kHz (?.5 kHz on FM-N)
Spurious Radiation: Harmonics: At least 50 dB down (1.8 - 29.7 MHz)
At least 60 dB down (50/144/430 MHz) 0
Non-harmonic: At least 50 dB down (1.8 - 29.7 MHz)
0 At least 60 dB down (50/144/430 MHz)
Carrier Suppression: At least 40 dB
Opp. Sideband Suppression: At least 50 dB
SSB Frequency Response: 400 Hz - 2600 Hz (-6 dB)
Microphone Impedance: 200 - 10 k Ohm (Supplied microphone: 2 k Ohm)
RECEIVER
Sensitivity: SSB/CW AM-N FM
100 kHz - 1.8 MHz (IPO off): - uV 32 uV -
1.8 - 28 MHz: 0.25 uV 2 uV -
28 - 30 MHz: 0.2 uV 2 uV 0.50 uV
50 - 54 MHz: 0.125 uV 1 uV 0.2 uV
144/430 MHz: 0.125 uV - 0.2 uV
SSB/CW/AM-N figures are for 10 dB S/N, 12 dB SINAD on FM
Squelch Sensitivity: SSB/CW/AM FM
1.8 - 28 MHz: 2.5 uV -
28 - 30 MHz: 2.5 uV 0.32 uV
50 - 54 MHz: 1 uV 0.16 uV
144/430 MHz: 0.5 uV 0.16 uV
Intermediate Frequencies: 0
1st IF: 68.33 MHz (SSB/CW/FM/AM)
0 10.7 MHz (W-FM)
2nd IF: 455 kHz
Image Rejection: Better than 70 dB (1.8 - 30 MHz, 50 - 54 MHz)
00 Better than 60 dB (144 - 148 MHz, 430 - 450 MHz)
IF Rejection: Better than 60 dB
Selectivity (-6 / -60 dB): 0
SSB/CW: 2.2 kHz/4.5 kHz
CW: 500 Hz/2.0 kHz (Optional YF-122C installed)
CW-N : 300 Hz/1.0 kHz (OptionalYF-122CN installed)
AM: 6 kHz/20 kHz
FM: 15 kHz /30 kHz (-6 / -50 dB)
Audio Output: 2.5 W into 4 Ohm @ 10% THD
Audio Output Impedance: 4 Ohm - 16 Ohm
The FT-857D, the worlds smallest HF/VHF/UHF mobile transceiver, provides base station-type performance from an ultra-compact package thats ideal for mobile or external battery portable work. Wide frequency coverage, outstandig receiver performance, and the convenience of optional remote-head operation make the FT-857D the experts choice for high-performance mobile operation!
The new FT-857D version includes coverage of the U.S. 60-meter (5 MHz) band, plus the previously-optional DSP circuitry, at no additional cost!
GENERAL
Frequency Range: Receive: 0.1-56, 76-108, 118-164 and 420-470 MHz
Transmit: 160 - 6 Meters including 60 Meters
0 2 Meters
0 70 Centimeters (Amateur bands only)
0 5167.5 kHz: Alaska Emergency Frequency
0 (U.S.A. version only)
Emission Modes: A1 (CW), A3 (AM), A3J (LSB/USB),
0 F1 (9600 bps Packet), F2 (1200 bps Packet), F3 (FM)
Synthesizer Steps (Min.): 10 Hz (CW/SSB), 100 Hz (AM),
0 100 Hz (FM), 100 Hz (WFM)
Antenna Impedance: 50 Ohm, Unbalanced
Operating Temp. Range: -10 °C to +60 °C (14 F to 140 F)
Frequency Stability: Better than ? ppm (-10 °C to +50 °C)
0
Power Requirements: DC 13.8V ?0 %, Negative Ground
Current Consumption: Receive (Squelched): 0.55A,
0 Receive (Max. Audio): 1A
0 Transmit: 22A (@ 100W RF output)
Case Size: 6.1" (W) x 2.0" (H) x 9.2" (D) (155 x 52 x 233 mm)
Weight: 4.6 lb. (2.1 kg.)
0
TRANSMITTER
Power Output: 160 - 6m: 100 Watts (25 Watts AM carrier)
0 2m: 50 Watts (12.5 Watts AM carrier)
0 70cm: 20 Watts (5 Watts AM carrier)
Modulation Types: SSB: Balanced Modulator
FM: Variable Reactance
AM: Early Stage (Low Level)
FM Maximum Deviation: ? kHz (?.5 kHz on FM-N)
Spurious Radiation: Harmonics: At least 50 dB down (1.8 - 29.7 MHz)
At least 60 dB down (50/144/430 MHz) 0
Non-harmonic: At least 50 dB down (1.8 - 29.7 MHz)
0 At least 60 dB down (50/144/430 MHz)
Carrier Suppression: At least 40 dB
Opp. Sideband Suppression: At least 50 dB
SSB Frequency Response: 400 Hz - 2600 Hz (-6 dB)
Microphone Impedance: 200 - 10 k Ohm (Supplied microphone: 2 k Ohm)
RECEIVER
Sensitivity: SSB/CW AM-N FM
100 kHz - 1.8 MHz (IPO off): - uV 32 uV -
1.8 - 28 MHz: 0.25 uV 2 uV -
28 - 30 MHz: 0.2 uV 2 uV 0.50 uV
50 - 54 MHz: 0.125 uV 1 uV 0.2 uV
144/430 MHz: 0.125 uV - 0.2 uV
SSB/CW/AM-N figures are for 10 dB S/N, 12 dB SINAD on FM
Squelch Sensitivity: SSB/CW/AM FM
1.8 - 28 MHz: 2.5 uV -
28 - 30 MHz: 2.5 uV 0.32 uV
50 - 54 MHz: 1 uV 0.16 uV
144/430 MHz: 0.5 uV 0.16 uV
Intermediate Frequencies: 0
1st IF: 68.33 MHz (SSB/CW/FM/AM)
0 10.7 MHz (W-FM)
2nd IF: 455 kHz
Image Rejection: Better than 70 dB (1.8 - 30 MHz, 50 - 54 MHz)
00 Better than 60 dB (144 - 148 MHz, 430 - 450 MHz)
IF Rejection: Better than 60 dB
Selectivity (-6 / -60 dB): 0
SSB/CW: 2.2 kHz/4.5 kHz
CW: 500 Hz/2.0 kHz (Optional YF-122C installed)
CW-N : 300 Hz/1.0 kHz (OptionalYF-122CN installed)
AM: 6 kHz/20 kHz
FM: 15 kHz /30 kHz (-6 / -50 dB)
Audio Output: 2.5 W into 4 Ohm @ 10% THD
Audio Output Impedance: 4 Ohm - 16 Ohm
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