Icom IC-756 ProIII
The Icom IC-756 Pro series was the first ham radio transceiver to use 32-bit floating point point DSP. The heart of the IC-756PROIII is the proven combination of the 32-bit floating point DSP and 24-bit AD/DA converters.
This powerful combination supports many digital processing features exclusive to the IC-756PROIII, which cannot be achieved with traditional analog processors. The 24- bit AD/DA converter has an ultra-wide dynamic range.
Although I have this nice Icom IC-756 digital radio within the shack, there are many times I still use my old, trusty Kenwood TS-850 due to it’s “warmer” sound that sometimes gets lost with the Icom.
The built-in audio equaliser has separate bass and treble adjustment for a total of 121 combinations, so you can tone your voice up or down when you want. In addition, the SSB transmit bandwidth is selectable from 100, 300, 500Hz at the high-pass edge, and 2500, 2700, 2900Hz at the low-pass edge respectively. 3 types of high and low combinations can be stored in the memory. With this flexibility of DSP based waveform shaping, transmit audio quality is adjustable depending on the operating situation.
8 channels of RTTY transmit memory
The IC-756PROIII has 8 channels of RTTY transmit memory. You can edit up to 62 character pre-fixed messages for each memory channel without a PC or other external unit. The transmit memory is displayed on the screen so that you will not send the wrong message. The built-in RTTY demodulator and decoder allow you to check the callsign of the station instantly. It is not necessary for you to prepare an external demodulator when you receive an RTTY message.
Automatic notch function
Eliminate annoying AM carriers, amplifier or radio tune up interference with a push of a button. The automatic notch tracks 2 or more interfering signals simultaneously without intended signal loss or distortion. Very helpful on 80 and 160 meters.
Adjustable noise reduction
The 32-bit DSP processing power produces real results by separating signal components from the noise with the variable Noise Reduction. By suppressing the noise components, an outstanding Signalto- noise ratio is achieved, providing clear, clean audio in all modes without distortion of the target signal.