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garmin gtm 21 problem
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stewlk
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Joined: May 02, 2007
Posts: 5

PostPosted: Sun May 06, 2007 4:15 pm    Post subject: garmin gtm 21 problem Reply with quote

just wondering if someone can help me, i got the nuvi 310d with the gtm 12 trafficmaster arial but i cant seem to get it working, its just saying no traffic data. i`ve been all the way upto the lakes this weekend and lancaster and still nothing. it shows its install, the firmware is 3.60 on the unit and 4.1 on the gtm12,


hope someone could spare sometime to help me out,

ps i live in the preston area
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stewlk
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PostPosted: Sun May 06, 2007 4:19 pm    Post subject: Reply with quote

sorry was meant to be GTM 12 not 21
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mikealder
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Joined: Jan 14, 2005
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Location: Blackpool , Lancs

PostPosted: Sun May 06, 2007 4:24 pm    Post subject: Reply with quote

The TrafficMaster data is normally transmitted from WinterHill (105,4 Century FM) which provided a good coverage for the NW and Fylde area.
I don't know if it's due to a fault or they have switched off the transmission for some other reason but we have had no signal around here since just after Christmas. The last time I saw my unit working was on the M62 near Leeds Crying or Very sad - Mike
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stewlk
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PostPosted: Sun May 06, 2007 4:30 pm    Post subject: Reply with quote

cheers for the reply, i was going to get the thing changed but thought i`d try it north from here but still doesnt work.halfords have said they`d change the gtm12 and garmin dont answer there phones so not sure what to do
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edrtaylor
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Joined: Apr 24, 2007
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PostPosted: Sun May 06, 2007 4:39 pm    Post subject: Reply with quote

I had the same problem - bought the nuvi310d with gtm12 from halfords 2 weeks ago. I live in Newcastle and traffic didn't work at all, nothing whatsoever all the way up to Glasgow and back. Found some info on here about the ciggarette plug adaptor which apparently isn't powerful enough so I got halfords to change it to a new type and it works brilliantly.

The new type charger's model number ends in 6021 - my old one ended in 6017. You may have to fight with halfords to get it changed - eventually I had to demand that they phoned Garmin. Guess what: the chap at garmin started to say that mine was a one-off problem so I told him to look on here and then asked why they changed the charger design if there was nothing wrong. Oh... yes it is something we're aware of, he said. Shame they can't be straight up from the start.
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mikealder
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PostPosted: Sun May 06, 2007 5:08 pm    Post subject: Reply with quote

6025 is the number of the newer charger cable, it produces less noise and does improve the RDS-TMC reception, but only in areas where there is coverage, Preston area is a dead duck at the moment as far as TrafficMaster TMC data is concerned - Mike
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stewlk
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PostPosted: Sun May 06, 2007 5:23 pm    Post subject: Reply with quote

its dead up in ambleside tooo
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stewlk
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PostPosted: Sun May 06, 2007 11:31 pm    Post subject: Reply with quote

i got the 6025 charger so it aint that
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captureboy
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Joined: Feb 25, 2006
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PostPosted: Mon May 07, 2007 2:51 pm    Post subject: Reply with quote

Where can I find the model number of my GTM 21, is it on the sticky label attached to the lead or stamped somewhere on the part?
_________________
Garmin Nuvi 660 FM
Software Version 4.80
Audio Version 1.90
GPS SW Version 3.00
Bluetooth SW Version 3.40
GTM SW Version 4.80
Map Info CN Europe NT 2010.30
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mikealder
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PostPosted: Mon May 07, 2007 2:58 pm    Post subject: Reply with quote

The RDS-TMC receiver model number is on a black flag adjacent to the mini USB plug one side has the CE mark the other the model number.

The part number for the charger lead is a similar black flag fitted to the lead approx. 20MM after the ferrite near the ciggy plug, it is the last four digits that we use to identify the 6025 or otherwise - Mike
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captureboy
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PostPosted: Mon May 07, 2007 4:08 pm    Post subject: Reply with quote

The last 4 digits under the bar code on the car charger lead is 1677. Is this correct?

Is it the best lead or can I get it changed?
_________________
Garmin Nuvi 660 FM
Software Version 4.80
Audio Version 1.90
GPS SW Version 3.00
Bluetooth SW Version 3.40
GTM SW Version 4.80
Map Info CN Europe NT 2010.30
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captureboy
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PostPosted: Mon May 07, 2007 4:17 pm    Post subject: Reply with quote

The last 4 digits under the bar code on the car charger lead is 1677. Is this correct?

Is it the best lead or can I get it changed?
_________________
Garmin Nuvi 660 FM
Software Version 4.80
Audio Version 1.90
GPS SW Version 3.00
Bluetooth SW Version 3.40
GTM SW Version 4.80
Map Info CN Europe NT 2010.30
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swing
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Joined: Nov 04, 2003
Posts: 2225
Location: Bedfordshire, UK

PostPosted: Mon May 07, 2007 7:25 pm    Post subject: Reply with quote

captureboy wrote:
Where can I find the model number of my GTM 21, is it on the sticky label attached to the lead or stamped somewhere on the part?
The GTM21 has never suffered from the power problems of the Nuvi 3xx power supply, so power or noise interference has not caused a redesign or reissue of the GTM21. If you are not getting traffic data from a GTM21, there are a number of reasons that could cause it, but the model number of the GTM21 is unlikely to be the cause (as long as it's UK stock, and not an import).
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Please don't be offended if I do not reply to a PM - please ask questions via the forums.
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rickwiggans
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Joined: Feb 09, 2006
Posts: 77

PostPosted: Tue May 08, 2007 6:00 pm    Post subject: Reply with quote

See my earlier post - Garmin have finally come clean - there is currently no transmission in the North West (at any rate, north of Manchester. Trafficmaster are having unspecified problems (presumably with their transmission partners) and there is no timescale for the resolution of the problem in this area (ie that served by Winter Hill)

Rick
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marksnsparks
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Joined: Dec 10, 2006
Posts: 53
Location: Lancaster

PostPosted: Tue May 08, 2007 8:16 pm    Post subject: Reply with quote

Dare we assume that there is an intention to fix the problem at some point?
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V9 Maps
Audio version 2.30
GTM12 - Version 4.80 Firmware
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