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Raymarine forum / Raymarine Forums / Radar v / Us of Fast Heading (HDM) for Axiom Pro & Quantum

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Us of Fast Heading (HDM) for Axiom Pro & Quantum
06-06-20, 02:41 PM
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hubesail Offline
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Us of Fast Heading (HDM) for Axiom Pro & Quantum
Hi,

Is there any advantage to using Fast Heading (HDM) as an input to my Axiom Pro with a Quantum radar interfaced?

I'm doing some re-wiring and noted that my course computer, Model 400G, has the Fast Heading (HDM) output on one of the NMEA-0183 ports.

The 400G course computer states:
Type 150G and Type 400G course computers provide fast heading
(HDM) output from NMEA 1 at 10 Hz 0.1° resolution. This fast heading data is
suitable for use with the MARPA function on radar equipment.

Is this necessary, or is heading from SeaTalk just fine. I've been running the boat for three years with the Quantum and an Axiom or older eS127 with not noticing a problem.

Thanks, Hube Hopkins
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Us of Fast Heading (HDM) for Axiom Pro & Quantum - hubesail - 06-06-20 02:41 PM

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