Installation Instructions
Page 9
... sonar signal from the sounder, the transducer must be used for all installations. ➋ ➌ ➌ ➊➎ GPSMAP 421, 441, and 451 ➌ ➊ GPSMAP 430x and 440x ➍ ➊ GPSMAP 420, 430, 431, 440, and 450 ➋ ➌ GPSMAP 530, 535, 540,... 2000 ➌ External GPS antenna (sold separately) ➍ Compatible XM antenna with audio adapter (sold separately) ➎ Compatible XM antenna (sold separately) GPSMAP 521, 541, 551 GPSMAP 526, 536, 546, and 556 Testing the Installation To turn on your chartplotter for leaks around any screw...
... sonar signal from the sounder, the transducer must be used for all installations. ➋ ➌ ➌ ➊➎ GPSMAP 421, 441, and 451 ➌ ➊ GPSMAP 430x and 440x ➍ ➊ GPSMAP 420, 430, 431, 440, and 450 ➋ ➌ GPSMAP 530, 535, 540,... 2000 ➌ External GPS antenna (sold separately) ➍ Compatible XM antenna with audio adapter (sold separately) ➎ Compatible XM antenna (sold separately) GPSMAP 521, 541, 551 GPSMAP 526, 536, 546, and 556 Testing the Installation To turn on your chartplotter for leaks around any screw...