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Garmin Nuvi hidden menu

 
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gem
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Joined: Feb 06, 2004
Posts: 90
Location: Scotland

PostPosted: Sun Sep 09, 2007 9:39 pm    Post subject: Garmin Nuvi hidden menu Reply with quote

In trying to understand the TMC outputs Shocked (or lack of them and poor coverage) what do the codes mean in Nuvi's hidden TMC screen please.

And can these codes be translated into something I might understand?

e.g. Channel? does this value correspond to a specific radio station

e.g. CC what does this mean?

e.g. Errors means what?

And which is the signal level code as it doesn't specifically say that term.

Cheers. Idea
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philpugh
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Joined: Dec 28, 2005
Posts: 2003
Location: Antrobus, Cheshire

PostPosted: Mon Sep 10, 2007 5:06 pm    Post subject: Re: Garmin Nuvi hidden menu Reply with quote

gem wrote:
In trying to understand the TMC outputs Shocked (or lack of them and poor coverage) what do the codes mean in Nuvi's hidden TMC screen please.

And can these codes be translated into something I might understand?

e.g. Channel? does this value correspond to a specific radio station


Yes it does. Take the number displayed, divide by 10 and add it to 87.5 to get he frequency (at least I think it's 87.5)

gem wrote:

e.g. CC what does this mean?


Sorry don't know.

gem wrote:

e.g. Errors means what?


Errors detected in the data stream- each message has a checksum - if it doesn't compute an error will be shown.

gem wrote:

And which is the signal level code as it doesn't specifically say that term.


Level is the signal level. Seems to be an arbitary scale - not even sure if it is linear or logarithmic.
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