SentrySoft releases new version of GPS Sentry

[CharlieCassidy]

SentrySoft today released the latest version of GPS Sentry, a GPS monitoring Today screen plug-in for Pocket PC 2002 and later PDAs. GPS Sentry provides users of NMEA capable GPS units a compact way of keeping an eye on their GPS from the Today screen.



To get more information on GPS Sentry or to download a 15-day full function trial, visit http://www.sentry-soft.com

[CharlieCassidy]

SentrySoft is pleased to announce that GPS Sentry V1.3 is available for immediate download. Version 1.3 has the following changes:

• Added display of position in UTM and USNG/MGRS coordinates.
  
• Added automatic display rotation. This feature is enabled and the time interval set in the Configure Screens dialog.
  
• Fixed bug in calculation of HDDD format.
  
• GPS is now disabled after Serial Port open failure. This will stop the recurring error dialog after the first time.
  
• Logging is now disabled after open failure. This will stop the recurring error dialog after the first time.
  

The new version of GPS Sentry can be downloaded from http://sentry-soft.com/GPSSentry.exe. As in previous versions, this file is a fully functional evaluation copy which can be evaluated for 15 days.

To upgrade a previous version of GPS Sentry to V1.3, simply run GPSSentry.exe then soft reset your Pocket PC. You should not need to reenter your registration code.

[Privateer]

Hi Charlie,

Can GPS Sentry display the position format of “British Grid”, i.e. Ordnance Survey of Great Britain?

For details on the Ordnance Survey format please see:
http://www.ordnancesurvey.co.uk
http://www.gps.gov.uk/

Regards,
_________________
Robert.
iPhone 6s Plus, iOS 14.0.1: iOS CamerAlert v2.0.7
TomTom GO Mobile iOS 2.3.1; TomTom (UK & ROI and Europe) iOS apps v1.29
Garmin Camper 770 LMT-D

[CharlieCassidy]

SentrySoft is pleased to announce that GPS Sentry V1.6 is available for immediate download. Version 1.6 has the following changes:

V1.5

. Time is not gathered from 3 different NMEA sentences rather than just the $GPGLL sentence. Some users with GPSs that did not output the $GPGLL were not displaying the fix time.
. Added a visual indicator of GPS Disabled and No Fix available. Clear display when GPS is Disabled.
. Fixed bug in calculation of position in GML log format (same bug as HDDD fixed in V1.3)
. Added Copy Location to Clipboard function. Copies location and time in current display format to clipboard.
. Fixed help file issues.

V1.6

. Extensive changes to Options Dialog. Now it is implemented as a Tabbed Property Sheet with tabs for GPS/Display, Screens, Log, Registration and About.
. Added option to disable GPS if no input seen. Time delay is set on GPS/Display tab.
. Added drop down to set GPS Baud rate. Navman 3450 needs 57600, others should be set to the NMEA standard of 4800. In any case, setting must match GPS.
. Added option to log position periodically, instead of every NMEA sentence. Option is set on Log tab.
. General refactoring of code and code cleanup.

The new version of GPS Sentry can be downloaded from http://sentry-soft.com/GPSSentry.exe. As in previous versions, this file is a fully functional evaluation copy which can be evaluated for 15 days.

To upgrade a previous version of GPS Sentry to V1.6, simply run GPSSentry.exe then soft reset your Pocket PC. You should not need to reenter your registration code.

[CharlieCassidy]

Robert,
Sorry this took so long. I generally don't get here often.

I'll take a look at adding the British Grid. Shouldn't be an issue.

Cheers,
Charlie

[Privateer]

Hi Charlie,

Thanks for looking into adding the British Grid.

I guess that GPS Sentry uses the WGS84 Map Datum. Unfortunately Ordnance Survey (OS) paper maps use a different one called OSGB36. The full description I’ve taken from an OS paper map is: Base map constructed on Transverse Mercator Projection, Airy Spheroid, OSGB (1936) Datum Vertical datum mean sea level (Newlyn).

Would it be possible to add a user switchable function in the settings of GPS Sentry to add (or remove) a “shift” on the co-ordinates to allow for OSGB36 when using OS paper maps and thus keeping maximum accuracy in transferring your indicated physical position to the map and vice versa?

Also when using a GPS unit you will get a 10-digit reading (not including the 2 letter 100,000 metre grid square identification) and a theoretical accuracy of 1 metre. However when using a paper map, the best you can hope for is an 8-digit reading with a theoretical accuracy of 10 metres. If you’re using a smaller scale map then you might only have a 6-digit reading with a theoretical accuracy of 100 metres. The following are all the same location but different accuracy:

ST 12345 67890 (10-digit, down to 1 metre)
ST 1234 6789 (8-digit, down to 10 metres)
ST 123 678 (6-digit, down to 100 metres)

Could you also provide a user option of 6-digit, 8-digit, or 10-digit display of the OSGB format?

Regards,
_________________
Robert.
iPhone 6s Plus, iOS 14.0.1: iOS CamerAlert v2.0.7
TomTom GO Mobile iOS 2.3.1; TomTom (UK & ROI and Europe) iOS apps v1.29
Garmin Camper 770 LMT-D

[CharlieCassidy]

Since I've got to compute the OSGB36 anyway to give an accurate British Grid reading, it will be easy to have the option of displaying the L/L using the OSGB36 datum.

Ditto on the accuracy issue. The only reason I didn't do that when I implemented the UTM/MGRS display was I was running out of space in the options dialog. I needed to implement property pages there first. Now that I've done that (V1.6) adding more options like this is a lot easier.

- Charlie

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