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GARMIN76MAP

Old 11-29-2002, 12:46 PM
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Just a few days left before Christmas and i thought i had the GPS under the tree. After reading other posts i am confused. What should i get the Garmin76map with external antenna, or the internal antenna?

Also, being that i know absolutly nothing about a GPS, how does it graph contours if its a handheld??
We are talking contours on the waters bottom, or are we talking the contours of tributaries we are traveling, being the shorelines and markers? Or both? I really need some info soon as Santa may just say screw me.
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Old 11-29-2002, 01:06 PM
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www.garmin.com is the place to start. The'll give you more info than you want. When it comes time for Santa to buy he should go to www.GPSdiscounts.com or www.consumersmarine.com The information in the GPS as 'standard' is excellent but you should get the MapSourse and BlueChard CDs...the additional information is downloaded into the GPS from your computer (not hard to do). If it's a handheld GPS the antenna is built in. Hope this gets you started. [img]/infopop/emoticons/icon_wink.gif[/img]
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Old 11-29-2002, 03:16 PM
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The GPS76map at the Garmin website shows a plugin for an external antenna. What i can understand about GPS*, is external antennas are better according to an overwelming number of THT genious. I wish to mount a bracket to hold the gps and have a plugin antenna, i would also like too plug into 12v dc adapter as not to drain batteries. Is this possible with the Garmin76map?
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Old 11-29-2002, 03:45 PM
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Yes, there is a plug in for an external antenna, but there is no external antenna to plug into it.

What do you mean by reading contours? This isn't a depth finder, its a GPS. The mapsource cartography has depth contours, but t hat would be a separate purchase.

Are you really sure you understand what it is you are going to be getting. You might do better to explain what it is you are wanting, and maybe another model may be more to your likeing.

Thom

"Just because you're on their side doesn't mean they're on your side."
(--Teresa Nielsen Hayden)
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Old 11-30-2002, 07:47 AM
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I guess you didn't read my other post [img]/infopop/emoticons/icon_cool.gif[/img] That is my biggest problem, i don't know what i want because i have never owned one. But i fear if i don't own one and soon that i won't learn how to operate it before the spring run. Some say a handheld won't do well under a bimini>ok...so i will get an external antenna and mount it outside the cabin. Some say you can mount a bracket to hold your handheld in plain view where it is easy to operate and navigate your vessel at the same time>ok....i can do that. Some say you can also plug in to a dc adapter to power your handheld to save battery life>ok...can the Garmin76map make it possible to do this even if I purchase any accessories i may need, external antenna, 12v plug-in, mapsource software.
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Old 11-30-2002, 08:45 AM
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I bought at Garmin II and separate fish finder my first time out. They worked fine, but took up almost all of the limited space at my helm station. My Fish finder finally fried (And my GPS unit is not upgradeable), so I am looking to upgrade to a combined chart-plotter/sonar. Prices aren't too bad, and it will shrink my installed footprint on the boat.

GPS tells you where you are wrt orbiting satellites. A sounder tells you where you are wrt bottom topology. Combined the two, and it should make life a little bit easier (IMHO).

-jah-
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Old 11-30-2002, 01:31 PM
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cberry107...I use my 76S under a T-top all the time; NO PROBLRM, period. There is no provision for a remote antenna, although page 66 of manual seems to refer to one...typo? I also use a cigarette Lighter Adapter to save batteries. I carry extra batteries...just in case. I use the 76S as a backup on the boat. I keep it on all the time. It'll work great through the bimini top. It has a Marine Mount availabe too; excellent. You can get an Automotive Mounting Bracket, too. Easy on, easy off. Great unit. If you going to be using it on the boat only...then I would consider the fixed mount with remote antenna. The whole package with the CDs will be north of $500.00. All Garmin product have a simulator mode...so you can learn to use at home. Hope this helps. These units can be used in both boat and car...you can download all the road maps you'll need (MetroGuide USA) AND with the BlueChart all the charts, too. This unit comes standard with the major roads of the world already included. For additional information you'll need the above CD's. [img]/infopop/emoticons/icon_wink.gif[/img]
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Old 11-30-2002, 01:43 PM
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Cherry, in general you will want an external antenna if you have anything over your head. You can get by without one if you have an open center console with no top, but you'll still get better performance, even then, with the external.

That may not be an issue with the handheld, which you can take out into the open. Question is, do you really want to be doing that everytime you want to take a reading? I would think that would get old real fast, particularly if you are trying to repeat a drift over target structure every 10 minutes. If it does have a plug for an external, then you can always add one later if you're not happy without.

Regarding contours, the contours are part of the map software that you load into the unit. The unit itself does not read anything except for the GPS satellite signal. It then matches your location to the appropriate coordinates on the map/chart that it has stored in memory or on its chip, and displays the correct map area. If you want contours, then you have to buy the appropriate for your area and load it into the unit.
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Old 12-01-2002, 05:38 AM
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cberry107...CORRECTION, the GarminGPSMAP 76S does have a terminal for a remote antenna. I never saw it, but Thom is right; it's there. I have an e-mail in to Garmin...I think the remote antenna is the 'GPS 17N'. I do not believe that you will need it under a bimini...try without it first. [img]/infopop/emoticons/icon_redface.gif[/img] [img]/infopop/emoticons/icon_wink.gif[/img]
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Old 12-01-2002, 03:24 PM
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Mumblerone,

The external antenna is the standard GA29 but requires the MCX to BMC adapter cable.

The 17N is an intelligent antenna (programmable GPS in an antenna) and wouldn't be suitable.

Cheers, Kerry.

I never get lost, everybody tells me where to go!
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Old 12-01-2002, 06:07 PM
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I have the garmin MAP76, Great product. Works well under my hardtop. Combined with their Bluechart product (Mapping software with uploadable charts for the GPS MAP76) it makes a great device. I have the Lowrance LCX-MT15 with WAAS GPS and Sonar, and the software/hardware combo is not nearly as nice as the Garmin, but I do gain a lot of screen real estate.

Lucky
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Old 12-01-2002, 07:03 PM
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Kerry...we'll get it right yet! Thanks [img]/infopop/emoticons/icon_rolleyes.gif[/img]
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Old 12-02-2002, 03:55 PM
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I also have the GPS Map76 and use it with no problem under my canvas top. My buddy has the older GPS 48 and his works great under his canvas top too.

Look... get the GPS Map76 and the cig. power adapter and give it a try. You can always add the external antenna later if you need it (which you won't!!!)

Take the thing with you in your car a few times and you'll see. Mine works fine in my car mounted behind the steering wheel. I also used it once on an airplane while holding it against the window of a commercial jet. It tracked my flight all the way from the US to Paris France.

Go tell Santa....QUICK

[img]/infopop/emoticons/icon_smile.gif[/img] Happy Holidays

Rodg
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Old 12-03-2002, 01:05 PM
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Exactly....
I was even able to use mine on my honeymoon cruise in cabin by placing it near the porthole (yes, I know gadet freak). Was neat to see where we actually went. I would suggest getting the standard "permanent" power adpater as well as the cigarette adapter, though. That way you can wire the power directly into your boat power and wire the GPS data output into your VHF Radio if you have the newer DSC. Now if I could only figure out how to unlock the rest of my Bluechart Amerca's CD without shelling out $2000..... [img]/infopop/emoticons/icon_rolleyes.gif[/img] [img]/infopop/emoticons/icon_wink.gif[/img]

Also suggest investing $35-$40 in rechargeable batteries and charger. Has saved me lots of money over the last year and a half. I know you don't need batteries if you are using boat power, but it sure is nice to have a backup when you blow that fuse or lose your electrical and have to call in your position on your handheld.

Lucky.
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Old 12-03-2002, 02:21 PM
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Kerry, right on again... [img]/infopop/emoticons/icon_wink.gif[/img] Thank you for contacting GARMIN International.

The 17N is not only an antenna but also a GPS as well for use with chart plotters that do not have gps capability such as our 2006 and 2010 units.

It depends on what type of environment you plan to use the unit as to which external antenna you need. If you are using this on a boat and have a pole to put the antenna on, you would need the GA29 antenna. This type of antenna is also useful if you are in umbrella type conditions in a forest area if you have some type of pole to attach it to so that the antenna can be held above the tree cover. I am including the link below for your convenience.

http://shop.garmin.com/accessory.jsp...0%2D00174%2D00

The GA29F antenna looks just like the regular GA29 except for it lies flush to mount on a flat surface. Both of these antennas have 30 feet of cable.

http://shop.garmin.com/accessory.jsp...0%2D00174%2D01

The last option is a low profile antenna that can be used on a car or a boat and only has 8 feet of cable. This option can be attached to the outside of a vehicle via a magnetic mount or via a suction cup on a windshield.

http://shop.garmin.com/accessory.jsp...0%2D10052%2D05

With Best Regards,
Kristi Jamison
GARMIN International
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Old 12-06-2002, 06:48 AM
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Last christmas, I got Prarie Geonomics Mighty Mouse II antenna for my gpsmap76 and love it. It's a mag mount with about 15 feet of cable. BUT...

I don't use it on the boat. Sitting in the windshield, the unit by itself doesn't need it. I have never lost signal, even with the bimini up and trolling under the CBBT. I use it in the car so that anyone can use it to look up exits, etc. off the Road and Rec. data. This way, it doesn't have to be stuck to the dashboard. It's a good thing. here is a look at some non-garmin antennae. I'm not suggesting you get them here, they just have nice side by side pic comparisons: http://www.gpscity.com/accessories/a...htymouse2.html

"Kiss my ass, I bought a boat, I'm going out to sea" Lyle Lovett
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Old 12-10-2002, 07:00 AM
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My GPS76 works inside my upper floor apartment, sitting in the Lazy Boy. Surprised me the first time it got a lock there. I seriously doubt you'll need an external antenna to get a lock under the hard-top. The units are extremely waterproof, too. I use mine in a sea kayak. It's been dunked many times. The only thing I do after dunking is spray a little rust inhibitor in the battery compartment, which is not waterproof. [img]/infopop/emoticons/icon_smile.gif[/img]
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