Garmin GPS practice outside of boat

shrinkucci

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Joined
Nov 16, 2011
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6
Hi
Thought I'd share a fun solution to an interesting problem. I bought a new Garmin 421s Fishfinder/GPS toward the end of the fishing season--mid September. Sadly, the direction booklet is poorly written and I had no previous experience with a marine GPS, so I needed to practice with the Garmin before using it on the boat. Additionally problematic is that the Garmin does not allow practice unless it is power activated--e.g., wired into a boat's battery powered system. This meant I had to practice with the Garmin either while sitting in my boat in the garage (uncomfortable and too cold) or try to learn using it on the water (impractical). I tried learning to use it sitting in the boat in the garage but it was, indeed, both uncomfortable and cold.

So, I solved the problem in the following way. I bought a spare Garmin power plug for 15 bucks on line and bought a small, 2.5 amp, 12 volt battery at Batteries Plus for 30 bucks. By wiring the Garmin power cord to the battery I can practice on the Garmin for almost three hours at a time before having to recharge the battery (the Garmin pulls under one amp per hour). The battery is probably 8 inches by four inches and weighs perhaps 1 1/2 lbs so it's not a hassle to keep in the house. I use a trickle charger on it between uses so it's an easy thing to keep charged. After a few hours messing with the Garmin I've already learned to place GPS way points, set up GPS routes and to label them. I've got all winter to learn the Garmin's ins and outs and to become comfortable with it. The only drawback to this solution is that I cannot play with the transducer/fishfinder screen but that is not a biggie in the scheme of things. For those of you already familiar with Fishfinder/GPS technology this is probably over kill but for me it allows me to get ready for Spring in a convenient manner.
 

smokeonthewater

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Dec 3, 2009
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Re: Garmin GPS practice outside of boat

if you want to step it up to the next level, put the garmin in your truck and mount a rod holder on the door..... your neighbors will think you flipped watching you troll around the neighborhood.
 

shrinkucci

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Nov 16, 2011
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Re: Garmin GPS practice outside of boat

That's funny...what's also amusing is that my eight year old grandson views it as a kind of computer game and likes to play with it...
 

smokeonthewater

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Re: Garmin GPS practice outside of boat

you could start a whole new sport.... squirrel fishing
 

Home Cookin'

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May 26, 2009
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Re: Garmin GPS practice outside of boat

too late--there's already dog fishing.

Fighting chairs in Pick-ups, chum with dog chow, kitten on a #9 hook with a 30" leader.

Or bottom fish from an overpass; jig with green tennis balls.

Surf cast from the edge of a park; frisbee lures

Don't bother fishing the interstates; Russian trawlers have cleaned everything out.
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,313
Re: Garmin GPS practice outside of boat

A lot of electronics, answering machines, battery chargers for cordless equipment, use 120AC to 12V convertors. I used a convertor from an old answering machine to power my Garmin
 

southkogs

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Jul 7, 2010
Messages
14,968
Re: Garmin GPS practice outside of boat

too late--there's already dog fishing.

Fighting chairs in Pick-ups, chum with dog chow, kitten on a #9 hook with a 30" leader.

Or bottom fish from an overpass; jig with green tennis balls.

Surf cast from the edge of a park; frisbee lures

Don't bother fishing the interstates; Russian trawlers have cleaned everything out.

That's pure genius. worship.gif
 

Coho Ghost

Petty Officer 2nd Class
Joined
Feb 26, 2010
Messages
105
Re: Garmin GPS practice outside of boat

Shrink,

Did the purchase of the 421s include an SD card with the GPS info for the area in which you intend to boat? When I bought mine, I did not realize the card was not included in the price,so for another $270.00 I was in business. Without the card there really is no GPS. You are simply shown as dot on planet earth! Hope you have a card or you are not going to learn a thing. It is called a BlueChart g2Vision preprogrammed SD card.

FWIW,
Coho Ghost
 

shrinkucci

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Joined
Nov 16, 2011
Messages
6
Re: Garmin GPS practice outside of boat

Good question--Yes, I bought the Western Lakes card for 90 bucks (the pre-programmed stuff in the Garmin is useless) which gives me a detailed, well defined GPS picture of all the western lakes from CA to CO. The Blue Chart g2 card is a different one but probably even better than mine. If you re-read my original post I mentioned that I've already learned to do waypoints and routes which implicitly means I had a lake on which to do it--yes?
 

shrinkucci

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Joined
Nov 16, 2011
Messages
6
Re: Garmin GPS practice outside of boat

I thought about that but wondered how I'd attach the two bare wires from the Garmin power cord...I'm sure there's a way but this seemed simpler somehow...
 

Star

Chief Petty Officer
Joined
Sep 21, 2010
Messages
481
Re: Garmin GPS practice outside of boat

Hey Shrink,
You could fill the bathtub and mount the transducer on a broom handel. Then steal your kids goldfish to learn about the sonar side!!
 

shrinkucci

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Joined
Nov 16, 2011
Messages
6
Re: Garmin GPS practice outside of boat

LOL!! That's funny!! Thanks for starting my day with a laugh...my wife laughed out loud also...
 
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