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Donateur DKARS


 

Member on SocialHAMs #2394

 

Specificaties FT-897

Onderstaande specificaties zijn van toepassing op de Yaesu FT-897 en kunnen gewijzigd zijn door de fabrikant zonder kennisgeving. Genoemde specificaties zijn van toepassing op een niet gemodificeerde radio en alleen van toepassing op de amateurbanden.

General

Frequency Range:

Receive: 0.1-56 MHz, 76-108 MHz, 118-164 MHz, 420-470 MHz

Transmit: 160 - 6 Meters (USA: includes 60 meters), 2 Meters, 70 Centimeters (Amateur bands only)

5.1675 MHz (Alaska Emergency Frequency: USA 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, Unbalanced (M)

Operating Temp. Range: +14 °F to +140 °F (­10 °C to +60 °C)

Frequency Stability: ±0.5 ppm/1 hour @25 °C, after warmup

Supply Voltage: Normal: 13.8 VDC ±15 %, Negative Ground / FNB-78 (Ni-MH Battery Pack): 13.2 V (Option)

Current Consumption: Squelched: 600 mA (Approx.) / Receive: 1 A / Transmit: 22 A

Case Size (W x H x D): 7.87" x 3.15" x 10.3" (200 x 80 x 262 mm)

Weight (Approx.): 8.6 lb (3.9 kg) (w/o Ni-MH battery, antenna, Microphone)

 

Transmitter

RF Power Output (@13.8 V DC): SSB/CW/FM AM Carrier

160- 6 Meter: 100 W 25 W

2 Meter: 50 W 12.5 W

70 Centimeter: 20 W 5W

Modulation Types: SSB: Balanced Modulator, AM: Early Stage (Low Level), FM: Variable Reactance

FM 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 dB

Opp. Sideband Suppression: >50 dB

SSB Frequency Response: 400 Hz-2600 Hz (­6 dB)

Microphone Impedance: 200-10k Ohms (Nominal: 600 Ohms)

 

Receiver

Circuit Type: Double-Conversion Superheterodyne (SSB/CW/AM/FM) / Superheterodyne (WFM)

Intermediate Frequencies: 1st: 68.33 MHz (SSB/CW/AM/FM); 10.7 MHz (WFM) 2nd: 455 kHz

Sensitivity: SSB/CW AM FM

100 kHz-1.8 MHz ­ 32 ­ µV

1.8 MHz-28 MHz 0.2 µV 2 µV

28 MHz-30 MHz 0.2 µV 2 µV 0.5 µV

50 MHz-54 MHz 0.125 µV 1 µV 0.2 µV

144/430 MHz 0.125 µV ­ 0.2 µV 

(SSB/CW/AM = 10 dB S/N, FM = 12 dB SINAD)

Squelch Sensitivity: SSB/CW/AM FM

100 kHz-1.8 MHz ­ 

1.8 MHz-28 MHz 2.5 µV 

28 MHz-30 MHz 2.5 µV 0.32 µV

50 MHz-54 MHz 1 µV 0.16 µV

144/430 MHz 0.5 µV 0.16 µV

Image Rejection: HF/50 MHz: 70 dB, 144/430 MHz: 60 dB

IF Rejection: 60 dB

Selectivity (­6/­60 dB): SSB/CW: 2.2 kHz/4.5 kHz

AM: 6 kHz/20 kHz

FM: 15 kHz/30 kHz

FM-N: 9 kHz/25 kHz

SSB (optional YF-122S installed): 2.3kHz/4.7kHz (-66dB)

CW (optional YF-122C installed): 500 Hz/2.0 kHz

CW (optional YF-122CN installed): 300 Hz/1.0 kHz

AF Output: 2.5 W (@4 Ohms, 10% THD or less)

AF Output Impedance: 4-16 Ohms

 

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