Yaesu FT-857D Amateur Radio Transceiver - HF， VHF， UHF All-Mode 100W Remote Head Capability[Product Information]- Utilizing an up-conversion architecture for HF with a first IF of 68.33 MHz， the FT-857 features a double-conversion superheterodyne system (triple conversion on FM)， with the 2nd IF at 10.7 MHz. Extensive bandpass filtering in the front end， along with careful device selection and gain distribution， yield a receiver system ready for the strong-signal challenges of today’s crowded bands!
- Providing transmitter coverage of the HF， 50 MHz， 144 MHz， and 430 MHz Amateur bands， the FT-857 also includes receive coverage on 100 kHz to 56 MHz， 76 to 108 MHz， 118-164 MHz， and 420-470 MHz. Enjoy the excitement of public safety monitoring， along with weather broadcasts， AM and FM broadcasts， aviation communications， as well as the action on the Ham bands!
- The FT-857 provides up to 200 “Main” memory channels， each of which may be named with an Alpha-Numeric label of up to eight characters. These 200 Memories may be separated into as many as 10 Memory Groups of 20 Memories each. For added convenience， you also get a “Quick Memory” and a “Home Channel” on each band， plus ten pairs of band-limit memories， to let you restrict operation to a sub-band， if you like.
- For superior interference rejection and transmitter “talk power，” the FT-857’s optional DSP circuitry enhances both sides of the communications circuit. The FT-857’s DSP Unit features a 24-bit high-tech D/A chip for signal processing. Included are Bandpass Filter， Auto-Notch， and Noise Reduction filters， along with a Microphone Equalizer.
- Ease of operation of the FT-857 is enhanced by the large-diameter (1.7”) Main Tuning Dial， similar in size to the tuning knob of many base station rigs. Selectable tuning steps of 2 kHz/4 kHz per revolution allow easy navigation around your favorite bands， while important keys and switches are strategically placed around the front panel for quick access.
