GTM21 traffic issues

Heuer · Occasional Visitor Joined: May 23, 2006 Posts: 3

You are of course quite correct on the YQ data feed - putting it in service mode allows a full audit of where the transmissions are from.

swing · Posted: Thu Jan 25, 2007 8:02 am Post subject:

Coo - how do you put a YQ unit into service mode? By PM if you don't want to publish here...

Heuer · Occasional Visitor Joined: May 23, 2006 Posts: 3

Can't for the life of me remember! Installer showed me how to do it (combination of menu item and +/- keys) brings up a scrolling list of the data feeds and whether they are corrupted or complete. Played with it for a while but I got bored with it and have not tried it for 12 months.

I'll have a play and see if I can remember and report back.

deano777 · Occasional Visitor Joined: Dec 14, 2005 Posts: 12

i went out and bought a 610T today Smile

comes with the GTM21, download two updates for the device one for the general software version 3.3? from memory and also a traffic update, both of these updates applied when i switched it on. After it had got a GPS fix 30-60 seconds later i got traffic information Smile

not been any where with it yet, will be next week.

I'm in Telford, Shropshire.

cheers
Deano777

mwfox · Posted: Mon Jan 29, 2007 8:08 pm Post subject:

When there is a traffic delay, which wasn't detected on initially calculating the route, my Nuvi 660 tells me the delay in minutes which is good. Is it then up to you whether to go another way and do you have to then recalculate a new route?

I know there is an option for avoid traffic - but it seems it doesn't do this on the fly.

philpugh · Posted: Fri Feb 09, 2007 6:24 pm Post subject:

New 660/GTM21 user here.

Only managing to pick up Classic FM (101.1) around the Warrington area - so not getting traffic information at all. Will look at connecting GTM21 aerial to car aerial/booster amp (it's a VW). Not been on a long run yet - will do next week.

To be honest the TMC was a bonus on the 660 - I don't do half the milage I used to do now - but it would be nice to get it to work.
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Phil

An-D · Posted: Sat Feb 10, 2007 8:38 pm Post subject:

How do. Long time listener, first time caller.

I've got the same story as most of the other people in this thread. Bought a 510D from Halfords in Dec. TMC kind of worked - for a bit. Upgraded to 3.9 and nothing since.

I cunningly (or so I thought) took my unit back to Halfords today with a tale of "Garmin told me to check these sekrit screens and concluded that the unit was duff" and got a nice new one with V4.1 and GTMV3.7

Had the GTM21 aerial stuck out of the car window for about 3 hours now scanning for traffic stations and getting

all. Which is surprising considering I live less than 3 miles from one of the transmitters listed in the other thread (Rock FM)

Its kinda nice in an odd way to know that I'm not alone...but sooooo frustrating!!!
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mikealder · Posted: Sat Feb 10, 2007 8:43 pm Post subject:

I don't think Rock FM actually transmitt any data the station you should be watching for is Century FM on 105,4 (or channel number 179 in Garmin code), that being Winter Hill its a bit more than three miles away but you should still pick it up - Mike

An-D · Posted: Sat Feb 10, 2007 9:46 pm Post subject:

Thanks Mike,

Is there any way you can manually select a station? I can see winter hill's aerial from my house
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citron · Posted: Sat Feb 10, 2007 10:34 pm Post subject: traffic gtm 21

An-D
First make sure you have latest traffic software loaded - version 3.7
Then connect your unit to the gtm 21 then goto settings -traffic! - Subscriptions- and you should see TM TMC (UK). select this one and you should be OK , - - - provided you have a good signal !!!!!.
I have found that If I switch the unit on whilst on The North Wales coast I get a good signal and the unit seems to lock onto it as I go inland. I still get traffic messages at home which is 12 mile inland but if I switch it off at home and then back on almost immediately -- No signal !!
It appears to me that you have to get a good signal initially then the unit will hang on to it until switched off.
I switched on whilst on the Promenade at LLandudno last night and it was showing traffic over the cheshire area mostly at a stand still !

Hope this helps
Citron

An-D · Posted: Sun Feb 11, 2007 9:25 am Post subject:

Hi Citron

I've got 3.7 and V4 loaded but it appears my 510 appears to be a bit coy in offering me anything to select.

When I access the subscriptions screen, I have 3 services available as below:

When I return to the previous screen to try and select one of them, the only option available is Auto. When I select it, I only get an Auto option with a radio button that I cannot switch on..

That said, I've just switched the blasted thing on now to get the screengrabs off it and the radio button is now selected without any input from me at all... Grrr Laughing Out Loud

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citron · Posted: Sun Feb 11, 2007 4:15 pm Post subject:

Hi Just realised that you have a 510, mine is a 660 which used to show RAC as an option together with Tm TFC ( traffic master) and a trial for a french service. always if I selected auto it would go onto TM TFC so i guess if you leave yours on auto it should eventually work ???!!
Since downloading latest software RAC is not listed?
Good luck !! Question

Nonny · Occasional Visitor Joined: Oct 21, 2006 Posts: 20

There are two Trafficmaster coverage maps on Garmin's website. One seems to be for the free service and shows 'limited' coverage' nationwide: http://www.garmin.com/products/gtm11/coverage.jsp#uk, and the other for the subscription service and shows both 'full' and 'limited' coverage nationwide: https://shop.garmin.com/fmtraffic/select_service_plan.asp?L=EN&CR=2&PR=2.

This suggests that the free service is inferior to the subscription service. I've asked Garmin whether this is the case and am waiting on a response.

Get good traffic reception at home in Sheffield, but none at all on a journey from Sheffield to Lincoln yesterday!

Apparantly, there is a new GTM software update due soon (version 4.20). Hopefully it will help!?

Are there any other subscription services that will work with the Nuvi?

Nuvi 660
SW 3.6
GPS SW 2.90
GTM SW 4.10
GTM21

idiot · Regular Visitor Joined: Aug 22, 2005 Posts: 72

Not convinced by Garmins traffic attempt,TomTom has less wires but better coverage with GPRS connection but obviously you pay the data costs too.

Is this TMC coverage an issue with all PNDs with built in/add on receivers or are Garmin in the firing line alone?

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