The CONTOUR, and the APF, are very effective receiver noise reduction tools in the HF bands operations. Also: the AUTO NOTCH (DNF) automatically eliminates the dominant beat tone.
The 32 bit high speed floating Point DSP (max 3000 MIPS) provides effective cancellation/ reduction (DNR) of the random noise that is frequently frustrating in the HF frequencies. IF DSP provides effective and optimized QRM rejection TCXO provides ☐.5 ppm High frequency stability ( 10☌ to +50☌).3 kHz roofing filter equipped as standard.Triple conversion with a 1st IF frequency of 69.450 MHz (SSB/CW/AM).Yaesu Uncompromising Receiver Circuit Design Ensures Excellent Performance High reliability is assured by the transmitter careful circuit design with efficient thermostatically-controlled Dual internal fans and the diecast chassis. The FT-891 provides stable 100W (25W AM) high power output. Measuring 6.1' x 2.0' x 8.6' (155 x 52 x 218 mm), The FT-891 is an innovative Multi-band, Multi-mode Mobile/Portable transceiver with Ultra Compact and rugged case design.
