Справочник Пользователя для Vertex Standard FT-857

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): 2.3 kHz/4.7 kHz (–66 dB)
CW (option YF-122C installed): 500 Hz/2.0 kHz
CW (option 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