Garmin 55LM use in tunnels

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petrarchan
Posts: 3
Joined: Fri Mar 20, 2015 11:58 am

Garmin 55LM use in tunnels

Postby petrarchan » Fri Mar 20, 2015 3:24 pm

I feel that the 55LM signal with the sats is not too good.. after it loses signal, it takes quite long to acquire the signals again.. Sometimes i have to switch off then on it again for the signal to be detected..

how does the gps work while in tunnel? cos the signal will definitely be lost, then how to know how to exit where or to continue your journey?

rajoo
Posts: 21
Joined: Fri Oct 08, 2010 5:48 pm
Location: kl

Re: Garmin 55LM use in tunnels

Postby rajoo » Fri Mar 20, 2015 4:48 pm

heard from the salesman..

the software goes into 'simulation' mode when u enter the tunnel.
it will use the last car speed and calculate the estimated time u exit the
tunnel..
:nutz:

cvincent
Posts: 9
Joined: Wed Mar 18, 2009 2:36 pm

Re: Garmin 55LM use in tunnels

Postby cvincent » Sat Mar 21, 2015 12:36 pm

petrarchan wrote:I feel that the 55LM signal with the sats is not too good.. after it loses signal, it takes quite long to acquire the signals again.. Sometimes i have to switch off then on it again for the signal to be detected..

how does the gps work while in tunnel? cos the signal will definitely be lost, then how to know how to exit where or to continue your journey?


Normal. Wait for recalculating if exit wrong lane. Study the route before you start your journey.

User avatar
gpsnerd
Contributor
Posts: 1278
Joined: Fri Jun 12, 2009 10:49 pm
Location: SG, Nuvi 205W, 255W

Re: Garmin 55LM use in tunnels

Postby gpsnerd » Sat Mar 21, 2015 12:37 pm

not sure if which model support that.
for me, before heading into tunnel, see where's the exit point ahead
User of 205 / 205W
Currently using 255W and 205W


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