GPS Alarm

[mark99]

I heard you can get a phone app that alarms if your phone moves.

 

Could be used if you are worried about being untied at night on a river.

Edited May 12, 2018 by mark99

[Alan de Enfield]

7 minutes ago, mark99 said:

I heard you can get a phone app that alarms if your phone moves.

 

Could be used if you are worried about being untied at night on a river.

My Garmin watch has a GPS 'anchor-alarm' - which certainly worked when we dragged the anchor at Spurn Point.

[rusty69]

Yep, I have used anchor drag alarm apps, which seem to work, although not sure I would trust it 100%

[Jess--]

if using a phone for this watch out for battery usage, GPS is one of the highest users of power

[Alan de Enfield]

23 minutes ago, Jess-- said:

if using a phone for this watch out for battery usage, GPS is one of the highest users of power

My watch only lasts 16 hours on GPS but about 4 weeks in 'time only' mode.

 

When I have the phone on satnav (in the car) it only lasts a couple of hours before it needs charging.

 

My 'walking SatNav' lasts 15 hours on 'full power' and up to 100 hours if 'economy', 4 second updates (instead of 1 second updates) and snooze modes are activated

 

GPS is a hungry beast.

[Detling]

If inside a boat the GPS probably won't get sufficient signal to fix on reliably, my phone inside on a shelf by a window often takes several hours before it knows where it is.

[Alan de Enfield]

2 minutes ago, Detling said:

If inside a boat the GPS probably won't get sufficient signal to fix on reliably, my phone inside on a shelf by a window often takes several hours before it knows where it is.

Good point - but another reason to go Tupperware (we don't have any problems)

[Robbo]

1 hour ago, Detling said:

If inside a boat the GPS probably won't get sufficient signal to fix on reliably, my phone inside on a shelf by a window often takes several hours before it knows where it is.

Most phones (if not all) have assisted GPS, so they should be quick at getting a fix.  Mine literally takes a few moments.

[WotEver]

8 minutes ago, Robbo said:

Most phones (if not all) have assisted GPS, so they should be quick at getting a fix.  Mine literally takes a few moments.

Likewise mine. Unlike my old TomTom satnav which could take an hour or more, particularly if I changed countries.