Hi Edfel,

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I have a “partial” answer for you. I don’t think there is an “easy” way to use the IC-900.

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D-RATS uses the D-Star data modes (among others). If you have any of the D-Star radios (plus a D-Star repeater) around, then there is a “slow” data channel along with the voice channel it is quite slow, but works for Chat. The 1.2GHz radio can be all digital and has reasonably fast speed – don’t remember exactly (maybe 4.8kbps in DV, ?128 kbps in DD mode???). DD mode is 1.2GHz only, available with the IC-9700 and the old ID-1 +/- the DD module for the 1.2GHz repeaters.

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We have used a local D-Star repeater (W3DHS) for ACS/ARES/RACES exercises. You can use D-STAR simplex as well. There are suggested DV simplex frequencies for 144 and 440 MHz – check the dstarinfo.com website.

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I use 9600bd for the connection to both the IC-9700 and the IC-705. I configure to the appropriate COM port. It works for me. I usually use the internet mode so the radios do not stay on.

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Jack Spitznagel – KD4IZ

Science River LLC

Biomedical Consulting Services

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