In the IC-756Pro III, it is possible to program each of the three settings individually with the following preset cutoff frequencies: Lower -6dB point: 100, 300 and 500 Hz., Upper -6dB point: 2.5, 2.7 and 2.9 kHz. At this point in time, the radio is starting to be used by amateurs. In my opinion, it a evolutionary update, not a revolutionary jump forward.
#IC 756 PRO II PRO#
The lower and upper -6dB points of the transmitted audio-frequency response are fixed for each setting. It completely replaces the PRO, and ICOM has discontinued manufacturing of the PRO, building only the PRO II instead. It provides fixed level audio from ACC1 to the Sound Card for PSK31, SSTV, MFSK, RTTY, Packet, WSJT and other digital modes. The IC-756 Pro II provided three selectable TOBW settings: WIDE/MID/NAR. This cable is for ICOM Radios (listed below) that have an 8 pin DIN Accessory (ACC1) connector on the rear panel.
#IC 756 PRO II MANUAL#
Soft and sharp filter shapes can be selected in both SSB and CW modes independently, Programmable SSB transmit bandwidth, microphone equalizer, manual notch function, digital twin pass band tuning (PBT), all mode, including PSK31. 32-bit floating point DSP Digital IF filter with 51 selectable bandwidths. Icom IC-756 PRO II (IC 756 PRO II IC756PROII) 6M oscillation problem: Some IC-756PRO (-2) tend to oscillate on 6m. Real-time spectrum scope with mini-scope. 121 position microphone equalizer.Ĭovers the nine HF bands and 60-meter plus 6 meters. Soft and sharp filter shapes can be selected in both SSB and CW modes independently, microphone equalizer, manual notch function, digital twin pass band tuning (PBT), all mode, including PSK31. The receiver is a Yaesu FRG-7700 in the 12 kc bandwidth position. 32-bit floating point DSP Digital IF filter with 51 selectable bandwidths. The mp3 audio clip below is an over the air recording of my IC-756 Pro III running with external ALC and processed audio: Pro III with external ALC and audio processing on AM size is 410 kb - mp3 What the Pro III sounds like on AM without the internal ALC and internal audio. 32-bit floating point DSP Digital IF filter with 41 selectable bandwidths, microphone equalizer, manual notch function, digital twin pass band tuning (PBT), all mode, including PSK31.Ĭovers the nine HF bands plus 6 meters. All successors required no additional filters.Ĭovers the nine HF bands plus 6 meters. 4.9 inch monochromatic TFT dot matrix LCD display.