GPS speedo question
 

I have a Livorsi GPS speedo that reads 30MPH no matter what speed I am running. The tattle tale works and the gauge does it's normal route at start up (meaning the needle swings full scale then back to zero) However if only stays at zero for a few seconds then goes to 30. Any help? Is it a bad gauge or antenna?

You have to send it in for a new battery. $75

I had the same thing happen it was the Antenna. They fixed it for Free! Livorsi was AEWSOME to deal with!!!!

29KILROY Thanks I'll give them a call.

gsmith Battery, what battery?

antenna battery. there was a thread somewhere that its pretty easy to yourself for like the cost of the battery which is a couple bucks.

BDiggity

I'll do a search and see what comes up. I did call and they send to send them the antenna so I bet you guys hit it dead on the money

Just sent mine in.

They charged my card $91.10

It fixed the problem, but what a dumb ass setup. You'd think there would be a better way to make it rather then a battery that goes bad every few years.

Never heared that one, send it to Livorci, they are great to deal with, also check your ant. connections and ground to spedo...could just need to be cleaned and tightind again.

Yup, the antenna has a battery in it. Pretty dumb a$$ way to make it work, but I guess it works.

We had the same problem...didn't know there was a battery issue though...
sent it in and they fixed it...75 bucks to us....

There are several threads on this topic around. I just had mine fixed. What's the deal, are all the batteries going out within the same time period???

I think battery last about three years. I have never took the ant apart to see what it looks like. I send in the guage and ant just to make sure its all working when it comes back.

Here is what I did:

Alright. Took it upon myself to try and fix the battery in the gps receiver/antennae. Unscrewed the white cap which has a small o-ring and teflon tape and took the unit apart by removing three small internal screws. And whaddyaknow, voila, there is a small panasonic battery in the bottom of the unit. Its held in by a couple of tack welds which were easily cut using an exacto knife. Went to Batteries Plus and bought a battery and they tack welded it back in for me, all for the grand total of $3.89. Thats right folks, three dollars and eighty-nine cents. Put the unit back together and it works like a charm. Just a bit of fyi for the do-it yourselfers!!

Sounds like a piece of cake. Thanks

Well, I changed the battery, and yes folks, it's a piece of cake...one thing though...my problem did NOT go away. I checked the battery again using a meter and I have 2.93v across the battery ( it's a 3v Battery) I only left the key on for a minutes in the garage so question: Do I need to wait a while? Does the antenna need to be outside and re-acquirer satellites?

SeaDated,

Unlike the FM signal from a radio, the GPS unit needs a little more clear "line of sight" to the satellite. According to the manufacturer, it can take as long as 30 minutes to acquire a signal and begin algorithm processing (depending on your area). My unit jumped back up to the 9 positon but only until the signal was acquired, then it began functioning properly. Get it on the water and then try.

Stogie Thank you for the info. I was going to send it off but I will now install it and give it a try this weekend. I'll let everyone know how it goes. Again, Thanks

SeaDated,
I am having the same problem but mine sits at 60MPH which would be the 9 oclock posistion. I have been told the gps can self diagnose the problem. Do I have the same problem as SeaDated?

9 o-clock position means dead battery in the antenna !!!!

You can connect the speedo input to the NEMA output of a compatable GPS and do away with the antenna. I have done this a few times using a Garmin handheld with the power/data cable. There are a couple of threads on this.

Just another option.

Will this still work if the battery is dead?

The gauge has red(+), black(-), and white (signal?)

I have a Garmin 492 GPS. I'm assuming I should connet the NMEA out (blue) to the white wire on the gauge?

Oh, and my speedo came with an extra plug for the antenna that only had a single white wire. So, I was able to rig it without hacking up the harness that goes to the antenna.

Hey we live in chattanooga and I have famiy in atlanta they are always trying to get us to bring the boat we have heard about coctail cove but dont know the ins and outs can you help us please

I just got my antenna back from Livorsi last week and 87 bucks later. What a rip off. I tried to unscrew the cap but thought I would ruin it. Wish I would have seen this thread two weeks ago before I got screwed for a $3.00 battery.

Here is information from Livorsi Marine.

If using your own GPS unit (Ex: Garmin, Lawrence), make sure you have connected the "output" to white pigtail in back of gauge. Make sure unit is set up to communicate with speedometer. (NMEA 0183 Version 2.0-3.01, Baud rate-4800, transmitted sentence-GPRMC)

So remind me, if GPS speedo works fine but recall function does not, what should I look for as possible problems ?

Great! What about the red and black going to the gauge? I guess they don't need to be connected?

The red and black need to be conencted to 12v and ground. Be sure to use the same gound for the GPS and Speedo.

Kelly O

Here is a link to another thread with GPS info. In the next to the last post, Velocity Vector has several good links with hook ups and troubleshooting.

http://www.offshoreonly.com/forums/g...dometer-2.html

Thanks! I rigged mine up last night and it appears to be working. At least the needle is no longer staying at 9 o'clock. It settles to zero when I turn the GPS on. I won't know for sure until I run the boat.

At first it did not work, I had to go into the GPS setup and change the default "Garmin Data" to "NMEA in and Out"

I don't think I'm using the same ground for both GPS and Speedo though. I change that next chance I get.

I've got an Autometer GPS speedo, that goes thru it's normal power-up routine, then swings back to zero, THEN rises to about 4-5 mph and sits there. It seems to work just fine going down the river, just sitting still it reads 3-5 mph?
Thanks,
Dean

Thanks, good info for diagnosing.

Does anyone know what 3v battery the antennae takes? I think there are numbers on the back of those batteries. the boat is at loto and I would like to have this battery with me so I can change it. Or does anyone know of a battery store at LOTO.

If you already have a GPS, rig the speedo to the GPS. I wouldn't waste my time or money fixing the antenna.

I finally got my antenna back and I am not sure what was wrong. The work order simply said, "tested, failed, repaired." 75 bucks please. Oh well at least it's working now.

the bear

I have the battery number at home so I'll look and get back to you.

I dont have the GPS, Now I wish I did.

Thanks!

the bear

The battery that was in mine was a Panasonic CR 1632

Thanks!

Following up on this thread, thought I would share my experience. No warning, went out to test some new prop work from BBlades today only to find the Speedo pegged at 55 MPH. Pissed off the remainder of the day, I stumbled onto this thread the next morning. the pictures below are from the Monday morning operation. The small Panasonic battery is soldered in and mounting tabs appear to block any additional information. Can anyone verify the CR 1632 number SeaDated posted?

http://www.intored.net/media/Livorsi/Livorsi-001.jpg

http://www.intored.net/media/Livorsi/Livorsi-006.jpg

http://www.intored.net/media/Livorsi/Livorsi-008.jpg

http://www.intored.net/media/Livorsi/Livorsi-009.jpg

I can. It's a CR 1632. LOL. I got a new battery from Radio Shack