Satellite Navigation Receivers........... Anyone else find this with GPS.................?

Banned
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I've had Sat Nav on my phones or Car systems for as long as I can remember........ but have noticed something pretty strange thats quite annoying!

My first setup, was with a phone and seperate wired receiver. Then an upgrade, with a better receiver and new phone, then with a phone with inbuilt GPS and now with 2 seperate navigon sets... they've all got one thing in common!


They all worked fine at first, but over time, the ability to receive a signal seems to fail or take so long to track, that the journey is over before it kicks in.

I went to Alton Towers earlier this week for 3 days and stayed in Derby. The receiver took the whole journey (about 40 minutes) before it started working. I could understand, if it had just stopped working..... but taking so long is just weird. Strangely - both my Navigons that were with me were acting the same way. (The missus joked - and it was meant as a joke! - that maybe they dont have Satellites up north - I'm begining to wonder!!!! )

Like I say though, having had 5 different set ups, they all seem to suffer the same fate..... and take yonks to track to be able to navigate.

Anyone else find the same - or am I just unlucky. (Or better still know why?)


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13 Comments

I think you've knackered them all :lol:

Never had any problem getting sats no matter where I've taken my Tomtom One - been the France, USA all over the UK (including some very remote parts of the north of Scotland) and it takes a maximum of 1 min to track and lock in.

Maybe it's the Gangsta windows on your Ford Focus? :lol:

Original Poster Banned

moob;5904112

I think you've knackered them all :lol:Never had any problem getting sats … I think you've knackered them all :lol:Never had any problem getting sats no matter where I've taken my Tomtom One - been the France, USA all over the UK (including some very remote parts of the north of Scotland) and it takes a maximum of 1 min to track and lock in.Maybe it's the Gangsta windows on your Ford Focus? :lol:



Don't think the Windas are the problem. They are tinted (which doesn't help) - but its never been a problem before. Just seems so weird that (a) they've both stopped working at the same time and (b) Sat Navs in general, always seem to just die on me.

Tints can definetly reduce the ability to receive the signal IMO, I guess it depends on how tinted.

Perhaps you're just unlucky Guv.

Original Poster Banned

moob;5904140

Tints can definetly reduce the ability to receive the signal IMO, I guess … Tints can definetly reduce the ability to receive the signal IMO, I guess it depends on how tinted.



Yeh, I realise that..... but to be working in the same car and now not...........

Perhaps you're just unlucky Guv.



this ^^^^^^^^^^^^^

Maybe I'm radioactive!:p

Tints aren't as much as an issue as heat reflecting screens, but that has never caused me an issue.

My built in car system has a signal in about 3 seconds and my old tomtom XL I don't use any longer takes anything from 30 to 90 seconds, even behind the heat reflecting windscreen.

Original Poster Banned

pghstochaj;5904169

Tints aren't as much as an issue as heat reflecting screens, but that has … Tints aren't as much as an issue as heat reflecting screens, but that has never caused me an issue.My built in car system has a signal in about 3 seconds and my old tomtom XL I don't use any longer takes anything from 30 to 90 seconds, even behind the heat reflecting windscreen.



Yeh, 30 seconds to a minute was quite normal from a cold boot. It's now about an hour on both! That's what makes this weird. I could understand if its completely nobbled (and never works) - but to kick in after such a long period, makes no sense to me. Especially as its on both sets (both about 18 months old!)

I've only had this twice before.............both times i was in Cambridge. I just came to the conclusion that it's the students fault for blocking my signal with all their bike lights. :-D

I used to have a TomTom V1, yes the original older version.....and wish I still had it actually...coz I used to switch it on and get a signal with up to 6 sats within the first 15 seconds every time......within 2 mins it went up to 10 sats and always had a strong signal for the whole of the journey....and that was me using it driving from central Scotland all the way down to Devon and Cornwall.

lol...doesnt help you ansa your Q OP but have you ever used TomTom SatNavs? :?

My TomTom takes about 5 minutes to locate the sats every morning.

Heat reflecting windscreens are the usual problem. Many people don't even know they have one. Have you tried putting your gps on the back window ?

Original Poster Banned

Syzable;5904209

I've only had this twice before.............both times i was in … I've only had this twice before.............both times i was in Cambridge. I just came to the conclusion that it's the students fault for blocking my signal with all their bike lights. :-D



Very strange! Wonder what the problem actually is!

skusey;5904422

My TomTom takes about 5 minutes to locate the sats every morning.



That sounds pants!

kyalion;5905220

Heat reflecting windscreens are the usual problem. Many people don't even … Heat reflecting windscreens are the usual problem. Many people don't even know they have one. Have you tried putting your gps on the back window ?



I've not tried that.... and might be a bit dificult driving, unless I'm reversing!:w00t:

Good point about trying it outside the car though. Cant fathom why the screen would be a problem though as it always used to work fine.

GPS positioning requires 3 dimensional coordinates to track satellites. As the satellites are constantly moving and never being in a static position, the coordinates become slightly off target (maybe 2 dimensions are correct bu the third dimension is slightly off target) and makes locating the satellites more difficult (yes, I know that some satellites are geostationary but only to a certain extent). You need to recalibrate the GPS by downloading new coordinates. Your phone should have an option for updating GPS status. Downloading will cost you the price of a phone call unless you use internet download via bluetooth or wifi or even a USB cable if that supports internet connections hosted on a connected PC.

Original Poster Banned

ElliottC;5905986

GPS positioning requires 3 dimensional coordinates to track satellites. … GPS positioning requires 3 dimensional coordinates to track satellites. As the satellites are constantly moving and never being in a static position, the coordinates become slightly off target (maybe 2 dimensions are correct bu the third dimension is slightly off target) and makes locating the satellites more difficult (yes, I know that some satellites are geostationary but only to a certain extent). You need to recalibrate the GPS by downloading new coordinates. Your phone should have an option for updating GPS status. Downloading will cost you the price of a phone call unless you use internet download via bluetooth or wifi or even a USB cable if that supports internet connections hosted on a connected PC.



Actually that's a good point that I'd forgotten all about! I know I had an app on my phone that I'd auto update each week, which was suppose to assist with seek times. However, this problem is with a Navigon Sat Nav, running TomTom. Not sure how I'd do that for this?
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