In the IC-756Pro III, it will be possible to program each of the three settings individually with the following preset cutoff frequencies: The lower and upper -6dB points of the transmitted audio-frequency response are fixed for each setting. The IC-756 Pro II provides three selectable TOBW settings: WIDE/MID/NAR. Programmable transmitted occupied bandwidth (TOBW) settings The new symbol is provided even with the memory keyer enabled. Autotuner coverage of Japanese emergency-communications frequency (4.350 MHz) in JA version "Stock" 60m band coverage (receive and transmit) This allows simultaneous display of the filter, memory-keyer and other menus along with a half-size spectrum-scope display. The IC-756Pro III provides a selectable mini-scope display mode. The IC-756 Pro II spectrum scope display occupies the lower half of the screen. Paolo Odone I1ODP has measured IP3 on his IC-756Pro III, using two crystal-controlled test-signal sources. (Reported by several new IC-756Pro III owners.) The initial element truncation above 20 wpm has been eliminated. Greatly improved Noise Reduction performance. The fundamental-type crystal filter, as opposed to a filter using 3rd- or 5th-overtone crystals, will have a better shape factor and be less susceptible to intermodulation under strong-signal conditions. Uses a fundamental-type SMD monolithic crystal filter as the first roofing filter. The strong-signal performance of the mixer and its peripheral circuits is greatly improved. This feedback will increase the 3rd-order intercept point and IMD3 dynamic range without loss of sensitivity when Preamp 1 is engaged.Įmploys new quad-JFET first mixer. This is a noise-free negative-feedback circuit for Preamp 1, which improves linearity at the expense of power gain, without degrading noise figure. Uses a low-noise feedback circuit for Preamp 1. Refer to 1.1 below.Įmploys new diodes and coils in the RF BPF to decrease strong-signal IMD. (5 assigned channels open on USA version band can be enabled on other versions with modification.)Īchieves IP3 > +30 dBm (14MHz band standard value). The IC-756PRO III will incorporate some IC-7800 technology:ĥ MHz (60m) band standard on all versions. The IC-756Pro III incorporated the following changes as compared to the IC-756Pro II: 1. Icom unveiled the new IC-756Pro III at Tokyo HamFair 2004, which took place on August 21 and 22, 2004. The IC-756Pro III received FCC certification on Septemunder FCC ID AFJ217800. See Dave, N9EWO's Radio Receiver Page (link below). New product information from ICOM The IC-756PRO III Hot News! The IC-756Pro3 has been discontinued as of late January 2009.
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