Garmin nuvi 310D GTM12 TMC problems

etaf · Occasional Visitor Joined: Oct 30, 2006 Posts: 29

Cool - thats great news - i'll look out for the 6025 number

also the unit must be old as the firmware was 2.x something

steve24885 · Occasional Visitor Joined: Sep 29, 2006 Posts: 1

I had the same problem with the GTM12, I upgraded to the latest software version and since then it has worked without any problems so far..........

malcolm_frost · Occasional Visitor Joined: Sep 26, 2006 Posts: 3

Apolgies if this has been posted before, the thread is a bit long now.
I contacted garmin about another matter and brought up the traffic reception issue. They have sent me a document showing different places to locate the unit. Apparently the position of the receiver is crucial.
Before I had the unit next to the windscreen pillar to the right of the steering wheel. I have now moved it to the centre of the windscreen, with the aerial running left and right along the bottom of the screen.
This is now working far better, I get traffic within 30 secs of switching on, and only lose reception in places I can't receive FM radio stations well anyway.
A great improvement.

banjo12 · Posted: Fri Nov 10, 2006 12:19 pm Post subject:

Has anyone had a problem with the Nuvi falling off the windscreen, when I park my car in the garage at night with it attached to the windscreen in the morning I find the unit sitting on my dashboard having come unstuck !!

mrgthomas · Occasional Visitor Joined: Nov 09, 2006 Posts: 23

mwfox · Posted: Fri Nov 10, 2006 12:28 pm Post subject:

Or ideally connect the end of the aerial wire to the car aerial.

etaf · Occasional Visitor Joined: Oct 30, 2006 Posts: 29

I remove the unit when not in car as parked on road all night - and I have found the mount on the dashboard a few times now

locksmith · Lifetime Member Joined: Aug 16, 2005 Posts: 221

Forgive me for not trawling through 40 pages Smile

Is the tmc antenna effected by a coated windscreen as the satellite signals are?

mabsey · Occasional Visitor Joined: Aug 08, 2006 Posts: 43

pandamedic · Occasional Visitor Joined: Oct 25, 2004 Posts: 50

Desade · Occasional Visitor Joined: Nov 12, 2006 Posts: 1

Hi

Just a quick note to let you know that I had a spare Belkin Powerjolt and used this to power the nuvi.

This has made a massive difference to the tmc reception and pick up traffic is most areas in my travels between Essex and Kent. There are still a few areas where reception is not received and am now going to try it out with the aerial set vertically (it was horizontal along the dashboard).

The original cable I had it 10R-02 6017 - I should give them a call to get a replacement and see if it is as good as the belkin.

My only gripe now is the location is flags for traffic - there is occasionally stationary traffic on the A12 from M25(J28) through into London and as I turn off at this junction it's not a problem - however, the GPS marks it as starting about a mile before the junction and wants to reroute me, even though the traffic is clear up to the junction !

Dominic

mbwdn · Occasional Visitor Joined: Nov 12, 2006 Posts: 1

Hi,
I am a newby and been looking to buy the 310D.
I have read a couple of threads on problems with the TMC.
It has been said a few times that the power lead supplied may be causing a lot of the problem and Garmin are suppying new leads, but does anyone know if the new leads are now being supplied with new units?
Great thread, thanks.

etaf · Occasional Visitor Joined: Oct 30, 2006 Posts: 29

i purchased a 310D on Oct 3oth and it had old firmware and an old 6017 lead
it will depend on the stock turnaround from the shop or site you purchase from.
I have also been advised of at least a 14day wait for a new lead from garmin..
so mine should arrive end of next week Smile

mikealder · Posted: Sun Nov 12, 2006 4:38 pm Post subject:

Halfords via internet purchase not only do they have the 6025 lead but you get a 256MB SD card to load some Europe mapping on for free - Mike

ILoveSatNav · Occasional Visitor Joined: May 05, 2006 Posts: 25

Hi - I've been reading this with interest as I have a StreetPiolot 2720 and so far have tried a GTM 11 and GTM 12 with it.

The GTM 11 offers no info about 95% of the time and the GTM 12 was no info 100% of the time!

Would anyone know if this could be the same problem as the Nuvi and the power supply?

Also, when the 11 was working, as soon as I changed the radio station I was listening to to another - I lost TMC! Changed it to say R2 and it came back! If I played a CD and the radio was last on say Capital Radio, no signal, change to R2 or R1 then it came back again - even though I was in CD mode!

The GTM is connected to my car ariel as that was the only way of getting ANY signal, albeit for 5% of the time!

Any ideas anyone??

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