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Question: I have the gpsmap 440s, and for some reason it is not finding my location. Is this a transducer issue or is it the Gps itself?
Document: I love this GPS-Sounder. I bought it from epal.com on sale with a free in hull mount transducer. It has all the features even the professional Captains need. The only negative is it uses magnets to hold the sim card door closed, so you cannot mount it within 32 inches of your compass.
Potentially a safety issue. The unit is touchscreen and affordable, but next time I'll spend more time considering alternatives.
The screen automatically varies brightness. It has a touch screen menu and you can adjust the sensitivity of the touchscreen. It comes with a bracket mount and a flush mount kit. You must purchase the transducer separately.
Upgraded to this unit and i am glad i did. pretty simple to operate and if you have homeport and can upload waypoints and fishing spots. always gave correct readings in sonar and gps.
Depending what transducer you buy. Make sure you buy the correct transducer/tri-ducer, saltwater use verses fresh water use. there is a difference.I'm still learning the fish finder part of it. Will post more updates soon.
Works Great sitting on my wife's kitchen table hooked up to a battery. Instantly and accurately determined my location from inside the house. The extra sensitive built in GPS antenna does what Garmin claims.
I am having trouble with sd port not reading the data card. I would like to return it and get a working data slot
Pretty good unit for the price. Only one problem I've found with it. I mounted mine in my sailboat and if you stop, and back up at all [like setting an anchor] the unit gets confused and doesn't know which way you're pointing. Stays that way until you actually move forward then straightens out. Otherwise a great unit.
I investigated this unit thoroly before I bought it. All reviews were very positive.So far, I have installed it and networked it (NMEA 0183) to my Simrad AP25 Autopilot and my Furuno 582 depthsounder.It is working very well but I am still learning to use it.I am impressed by its ease of use and think it will be a real asset to my fishing and cruising.
Extremely accurate I was drifting around a Nav aid (buoy) and it was like only like 3-20 feet difference at times. Current & Tide tables can be displayed, even for days in advance!The 740s is very to use, the touch screen is very nice and quick. You can adjust it for the use with gloves, making screen extra sensitive.
Answer: You could be in a new area??Just built???  Or the other thing is to update your gps through garmin, that should help