February 1, 2007 09:12
Can I request support for Navtex receivers within GPSNavX and MacENC?
"Navtex is a world-wide system of navigation, Safety and Weather wrnings broadcast by individual nations under the general authority of th IMO (International Maritime Organisation). Broadcasts are required to have a minimum coverage of 400 nautical miles from the broadcast station, normally better than this can be expected. Because of the better propagation of radio waves by night much longer distances of 1000 miles or more are not uncommon. No licence is required and the information is free to purchasers of suitable equipment. The information is in English, though some nations, Spain for example, follow the English text with local language text."
The new Nasa Marine Navtex receiver actually buffers received transmissions in memory, so that you don't need to have your computer switched on to receive transmissions. ( http://www.nasamarine.com/Navtex/pcnavtx.html ) You just send it a simple command via RS232 and it them spools all buffered messages to your computer.
It would be really useful to have this information collected within GPSNavX, and possibly linked to latitude and longitude locations where appropriate. You could add a simple interface to allow filtering of messages by type or something... saves on the broadband / GPRS bills for downloading weather forecasts etc...
"Navtex is a world-wide system of navigation, Safety and Weather wrnings broadcast by individual nations under the general authority of th IMO (International Maritime Organisation). Broadcasts are required to have a minimum coverage of 400 nautical miles from the broadcast station, normally better than this can be expected. Because of the better propagation of radio waves by night much longer distances of 1000 miles or more are not uncommon. No licence is required and the information is free to purchasers of suitable equipment. The information is in English, though some nations, Spain for example, follow the English text with local language text."
The new Nasa Marine Navtex receiver actually buffers received transmissions in memory, so that you don't need to have your computer switched on to receive transmissions. ( http://www.nasamarine.com/Navtex/pcnavtx.html ) You just send it a simple command via RS232 and it them spools all buffered messages to your computer.
It would be really useful to have this information collected within GPSNavX, and possibly linked to latitude and longitude locations where appropriate. You could add a simple interface to allow filtering of messages by type or something... saves on the broadband / GPRS bills for downloading weather forecasts etc...
