ViewRanger has two different alarms:
POI / Waypoint Arrival Alarm – this alarm is triggered when you reach your
target point or the next waypoint. The trigger distance is set in the GPS page of
Settings. If the distance is set to 50 metres, then the alarm will trigger when you
are within 50 metres of the target.
XTE (Cross Track Error) Alarm – this alarm is triggered if you deviate too far
from the route. The trigger distance is set in the GPS page of Settings. If the
distance is set to 100 metres, then the alarm will trigger if you are more than
100 metres from the route.
You can switch the two alarms off individually using POI/wpt alarm on/off and
XTE alarm on/off – these can be found in the Map view’s Options > Navigate
sub-menu or the Trip view’s Options menu.
When an alarm has been triggered a warning message is shown and your
chosen sound played every 10 seconds. You can silence an alarm by choosing
Silence alarm – again this is in the Navigate menus, but also available in the
map view if you press the cursor pad centre or
The colour of the navigation arrow changes when the alarm is triggered – red
indicates arrival and blue indicates off route.
Choosing the alarm tone
Choose the alarm tone or sound on the Settings panel’s GPS tab. There are
separate settings for the Arrival alarm and for the Cross track error alarm.
The pink circle is the arrival alarm
– once you enter the circle the
alarm sounds and the navigation
arrow is drawn red
The blue box is the cross track
error boundary. If you go outside
this box, the cross track error
alarm will sound and the arrow will
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The default is the alert panel beep, but you can choose any sound, tone, MP3
or music track. You can record and use your own sound. The Settings GPS tab
also contains a volume slider to control the volume of the alarm.
Sound and Video Links
You can add a sound or video link to a waypoint or POI and it will be played
when you first reach that point. To add a sound link use the Details view's ‘Add
Alternatively in the description type using the format:
This will appear as underlined text Description
, which you can click on to play
the sound file ‘SoundFile.wav’.
This sound will be played once when you first reach the POI or waypoint. After
being played the alarm will switch to the usual alarm tone until silenced.
You could record a short description, which is played as you reach a point, or
could have a special sound.
This link is saved into GPX files and is imported from GPX files, if you prepare
Videos can be embedded using the link format:
To be played as an alarm the video must further be surrounded by alarm tags,
which can also be added around sounds:
There are three settings that control navigation. All are set in the GPS tab of
1. Arrival alarm distance - the distance at which
the arrival alarm sounds and the navigation
arrow turns red. This is the grey outer circle in
2. Cross track error (XTE) alarm distance - if you
go more than this distance away from the
route the cross track error alarm sounds and
the navigation arrow turns blue. This is shown
as the dotted line.
3. Show next waypoint distance - when you
reach this distance away from the waypoint
you are considered to have arrived at the
waypoint. The navigation arrow will now point
at the next waypoint on the route, so you
know where to go next. This is shown as the red inner circle. The arrival
alarm will still sound, so you know you are at the waypoint.
We recommend you switch on the navigation arrow using Options > Organizer
> Settings > Map > Show navi arrow. The arrow is green to show you are on
route, blue if you are off route and red when you arrive at a
A dotted line is drawn between your GPS position and the
ViewRanger draws rings around the target waypoint and the
alarm waypoint. The target waypoint rings are black and the
alarm waypoint rings are red. Alarms take precedence if they
are the same point. The rings are at the two distances – Show
next wpt distance and Arrival alarm distance.
If the target point has a description then a speech bubble icon is
shown below the navigation arrow. You can access the text using
Options > Navigation > Target details.
Following a route
1. Starting at the first point on the route the
navigation arrow will point at the second point.
As long as you stay on route, that is you don't
trigger the cross track error alarm (so are
within the dotted lines on the previous page),
the navigation arrow will continue to point at
the second waypoint.
2. When you reach the grey outer circle, the
arrival alarm will trigger. The navigation arrow
will turn red, but it will still point at the second
3. When you reach the red inner circle you are
considered to have arrived at the second
waypoint. This waypoint is marked as achieved
and won’t be targeted again.
The navigation arrow will now point at the third
waypoint. The arrival alarm continues to sound
until you pass the current waypoint - that is you
are closer to the next leg of the route.
4. You are now navigated to the third waypoint.
Once you have arrived at a waypoint that
waypoint is marked as achieved. ViewRanger
won't consider that waypoint again, or any
before it. However, you can override that with
Even if you now go backwards towards
waypoint 1 the navigation arrow will still point
at waypoint 3. You can however change this by
choosing Options > Navigation > Step target backwards.
Detail of what happens as you reach the waypoint
As you reach the waypoint there are two target distances involved.
The navigation arrow points to the next waypoint. In the diagram below, as you
go from waypoint number 1 to waypoint 2, the arrow points towards waypoint 2.
When you reach the arrival alarm distance, the pink outer circle, the arrival
alarm will sound if you have it enabled.
The distance given by Settings > GPS > Show next wpt distance controls the
distance at which ViewRanger will consider you to have arrived at a waypoint. It
is shown as the inner yellow circle in the diagram below. Once you reach this
distance from a waypoint, the navigation arrow will start pointing to the following
waypoint. So in the diagram, when you reach the inner circle the navigation
arrow will start pointing at waypoint 3. Its default value is 15m.
If you have alarms enabled, the arrow will still be red while you are within the
The outer circle (pink) is the arrival
alarm – once you enter the circle
the alarm sounds and the
navigation arrow is drawn red
Once you enter the inner circle
(yellow), the navigation arrow
shows the direction to the third
Going off route
If you go off route by more than the cross track distance, ViewRanger will re-
evaluate where you are.
If it finds that you are closer to a later leg of the route it will direct you along that
leg. It gives preference to the earlier route legs. However, if you return to your
route it will revert to directing you to the next waypoint.
It will never consider route legs prior to a waypoint that you passed through and
was marked as achieved, as long as that waypoint was achieved in correct
Route Navigation Troubleshooting
The most important setting is the Show next wpt distance. This defaults to 15
metres. If you find that the navigation arrow points to the subsequent waypoint
too soon then reduce this setting. If you find the navigation arrow pointing
backwards as you pass the waypoint then increase the value. On a 1:50,000
scale map 15 metres is a circle 6 pixels across and on a 1:25,000 scale map it
is 12 pixels across.
The cross track error distance is also important. For example, if you short cut a
corner the navigation arrow will point at the waypoint you are missing until you
are more than the cross track distance off the route. So if you often short cut
corners, keep the cross track error distance quite low.
The arrival alarm distance only determines when the arrival alarm starts
sounding. Normally you want the alarm to sound as you approach a waypoint,
so keep this setting greater than the next waypoint distance.
These commands are in the Options > Navigation menu in both the Map view
and the Trip view.
Silence alarm - silences the alarm. It won't sound again until it is
triggered by a new event - for example, arriving at the next waypoint.
Alarm wpt details - show the details view for the point that has
triggered the alarm
Target wpt details - show the details view for the target waypoint.
Prev wpt details - show the details view for the previous waypoint.
Step target forward / backward - set the target waypoint to be the
waypoint one later or one earlier in the route. Sometimes your location
will cause this to have no visible effect - in which case you can switch
off auto following and set the target manually.
Route details - show the details view for the route.
Play sound - when you first trigger the arrival alarm, ViewRanger
checks the points's details for a sound or video link and if there is on it
will play it. Subsequently it sounds the alarm until you silence it. This
command plays the sound or video again.
Auto follow on / off - toggle automatic route following on and off. If it is
off then you need to manually advance the target waypoint using step
Reset follow route - resets the automatic route following to start from
the first waypoint. Note that if you are closer to another route section it
will use that section of route.
Show target on map - moves the map to have the target waypoint at
the screen centre.
Arrival alarm on/off - toggle the arrival alarm on and off.
XTE alarm on / off - toggle the cross track error alarm on and off.
Stop navigate - stop navigating.
Manual Route Navigation
You can also manually select waypoints to navigate towards, rather than using
the automatic method described above.
To navigate to a specific waypoint first select the waypoint, then press the
cursor pad centre or
and choose Navigate to.
To select a waypoint you can use the route’s waypoints list, or can use the Map
view’s select cursor (press 1 or choose Options > Cursor keys > Select or on
touch screen phones use the
button). On keypad based phones you can also
use the short cuts 4 to select the previous waypoint and 6 to select the next
Once you have chosen to navigate to a particular waypoint you can step
forward or backward using the Navigate menu’s Step target forward or Step
target backward commands.
You can start using the automatic route following using the Navigate menu’s
Auto follow route on command.
Documents you may be interested
Documents you may be interested