E.S. Ritchie's MagTronic digital compass
Article Abstract:
The E.S. Ritchie MagTronic digital compass ($500-$800) is an expertly engineered, flexible system. The MagTronic's MS-100 electronic heading sensor can provide heading information to other electronic navigation equipment.
Publication Name: Boating
Subject: Sports and fitness
ISSN: 0006-5374
Year: 1992
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Hand-bearing compasses
Article Abstract:
Several models of hand-bearing compasses are examined. These include the Autohelm Personal Compass, KVH's Datascope, West Marine's Accusight, Ritchie's Sportabout and the Davis Instruments models.
Publication Name: Yachting
Subject: Sports and fitness
ISSN: 0043-9940
Year: 1998
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We test: Autohelm Personal Compass
Article Abstract:
The Autohelm Personal Compass ($175) is a waterproof handheld compass. The device is easy to operate and gives instant and accurate digital readings.
Publication Name: Boating
Subject: Sports and fitness
ISSN: 0006-5374
Year: 1992
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