Yaesu FT-857 Technical Supplement page 3

Receiver
Circuit Type:
Intermediate Frequencies:
Sensitivity:
Squelch Sensitivity:
Image Rejection:
IF Rejection:
Selectivity (–6/–60 dB):
AF Output:
AF Output Impedance:
Specifications are subject to change without notice, and are guaranteed within the amateur bands only.
Double-Conversion Superheterodyne (SSB/CW/AM/FM)
Superheterodyne (WFM)
1st: 68.33 MHz (SSB/CW/AM/FM); 10.7 MHz (WFM)
2nd: 455 kHz
100 kHz-1.8 MHz
1.8 MHz-28 MHz
28 MHz-30 MHz
50 MHz-54 MHz
144/430 MHz
(SSB/CW/AM = 10 dB S/N, FM = 12 dB SINAD)
100 kHz-1.8 MHz
1.8 MHz-28 MHz
28 MHz-30 MHz
50 MHz-54 MHz
144/430 MHz
HF/50 MHz: 70 dB,
144/430 MHz: 60 dB
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
2.5 W (@4 Ohms, 10% THD or less)
4-16 Ohms
SSB/CW AM FM
– 32 μV –
0.2 μV 2 μV –
0.2 μV 2 μV 0.5 μV
0.125 μV 1 μV 0.2 μV
0.125 μV – 0.2 μV
SSB/CW/AM FM
– –
2.5 μV –
2.5 μV 0.32 μV
1 μV 0.16 μV
0.5 μV 0.16 μV
Specifications
3