TMC on GB map worse than on Western Central Europe map

[m623d]

I have a self modded TMC unit that I use with my 910 with the latest Western and Central Europe Maps
My wife has the 510 with the latest UK and RI+ Major roads.

The other day I took her 510 with me and connected up the TMC and I hardly got a signal over 600 miles, my 910 gets a signal over the same route around 90% of the time.

anyone else notice this?
The people who are having no signal problems, are you on a uk only mapping or western/central europe?
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Garmin Emap, Ipaq 2210 with TomTom Navigator 5, TomTom One, Pioneer AVIC-X1R, TomTom 910 (stolen). TomTom 520, TomTom 6100 (Faulty, replaced under warranty), Currently got a TomTom 6200

[mikealder]

Strange observation, although it could be down to different versions of the TomTom application behaving differently between the two devices there have been slight alterations to the RDS-TMC system since its introduction.
I cannot see how the map can affect the reception of radio waves 8O and for crazylegs benefit the actual RF receiver for the RDS-TMC is in a little external pod - it is not in the Go device.
I have tried UK and IE as well as the Western and Central Europe map, I have not noticed any improvement in terms of RDS-TMC reception, there is certainly no degradation in reception, though that said it would be very hard to make it worse - Mike

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