Simrad HR20

[jitait]

Anyone know what NMEA sentences the Simrad (I guess ex-Navionics) HR20 Handheld Autopilot remote control uses to communicate with the autopilot?

Thanks!

[GordMay]

Simrad “SimNet” Manual ➥ http://www.hellasmarine.com/Simrad%2...nstall-Man.pdf

More Simrad Documentation
➥ Simrad_Documents

Simrad HR20 Remote
➥ http://www.busse-yachtshop.de/pdf/simrad-hr20.pdf

See also pages 17 & 18
➥ http://www.equipment.ath.cx/instrume...rpilot2030.pdf

“This information is extracted from the following NMEA0183 sentences -
NOTE - The Cross Track Error (XTE) information has a maximum value of 1.21 Nautical Miles. If
the XTE exceeds this while using NavLock, the Wheelpilot will sound an alarm, exit NavLock
Mode and return to Compass Auto Mode.
The TP20 & TP30 also extracts the apparent wind angle from the following

NMEA0183 sentences -
VWR Apparent Wind Speed & Angle
MWV Wind Speed & Angle
XTE Cross Track Error and Arrival At Waypoint
BWC Bearing To Destination Waypoint and Arrival At Waypoint (Great Circle)
BWR Bearing To Destination Waypoint and Arrival At Waypoint (Rhumb Line)
APA Cross Track Error, Bearing To Destination Waypoint and Arrival At Waypoint
APB Cross Track Error, Bearing To Destination Waypoint and Arrival At Waypoint
RMA Speed Over Ground (SOG) & Magnetic Variation
RMB Cross Track Error, Bearing To Destination Waypoint and Arrival At Waypoint
RMC Speed Over Ground (SOG) & Magnetic Variation”

[jitait]

Thanks Gord.

I assume the way it works is to transmit new bearings to destination way point.

Do you know?

[jitait]

PS Also is the (Simnet/NMEA 2000 compliant) HR22 really a different device - or the same device with NMEA certification?

Tx

John