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Good morning,
 I would like to replace an old Autohelm ST30 Bidata display, which works but no longer communicates, while retaining the original speed and depth probes. I think the DST 2 module would be suitable but I don’t know which frequency to choose (150 – 170 – 200 kHz etc.).
 Could you advise me please?
 Fred.
Hi Fred,
 The frequency of the DST-2 that you would want is usually determined by the frequency of the depth transducer that you have. Tt would either be a 150/170/200 Khz transducer, and you’d need the corresponding DST with the matching frequency.
 If we can help further, please just raise a ticket in our Support Centre and we’ll be delighted to help.
 Kind regard,
 Justin