Yaesu FT-857 Technical Supplement

Also see for FT-857 series: Manual Technical supplement Operation manual Brochure & specs Operating manual

Contents

Yaesu FT-857 Technical Supplement Manual pdf 2 page image

2SpecificationsGeneralFrequency Range: Receive: 0.1-56 MHz, 76-108 MHz, 118-164 MHz, 420-470 MHzTransmit: 160 - 6 Meters, 2 Meters, 70 Centimeters (Amateur bands only)Emission Modes: A1 (CW), A3 (AM), A3J (LSB/USB), F3 (FM),F1 (9600 bps packet), F2 (1200 bps packet)Synthesizer Steps (Min.): 10 Hz (CW/SSB), 100 Hz (AM/FM/WFM)Antenna Impedance: 50 Ohms, UnbalancedOperating Temp. Range: 14 °F to 140 °F (–10 °C to +60 °C)Frequency Stability: ±4 ppm from 1 min. to 60 min after power on. @25 °C: 1 ppm/hour±0.5 ppm/1 hour @25 °C, after warmup (with optional TCXO-9)Supply Voltage: Normal: 13.8 VDC ±15 %, Negative GroundCurrent Consumption: Squelched: 550 mA (Approx.)Receive: 1 ATransmit: 22 ACase Size (W x H x D): 6.1” x 2.0” x 9.2” (155 x 52 x 233 mm)Weight (Approx.): 4.6 lb. (2.1 kg)TransmitterRF Power Output: SSB/CW/FM AM Carrier(@13.8 V DC) 160- 6 M: 100 W 25 W2 M: 50 W 12.5 W70 CM: 20 W 5 WModulation Types: SSB: Balanced Modulator,AM: Early Stage (Low Level),FM: Variable ReactanceFM Maximum Deviation: ±5 kHz (FM-N: ±2.5 kHz)Spurious Radiation: –50 dB (1.8-29.7 MHz)–60 dB (50/144/430 MHz)Carrier Suppression: >40 dBOpp. Sideband Suppression: >50 dBSSB Frequency Response: 400 Hz-2600 Hz (–6 dB)Microphone Impedance: 200-10k Ohms (Nominal: 600 Ohms)