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[aprssig] D700 and NMEA waypoints

Wes Johnston aprs at kd4rdb.com
Fri Dec 30 02:09:30 UTC 2005


The D700 has a virtual SPDT switch inside for routing TNC data.  It
either goes straight to the serial port on the front panel (TNC PKT
MODE) OR it goes to the internal CPU for decoding (TNC APRS mode).

There is no need for the radio to see valid or any GPS data before it
will send waypoints out to a GPS as far as I know.  You just have to set
the APRS/GPS output format to the correct number of characters in the
waypoint name.  It will send a GPWPL string.... I'm not aware of any
mapping software that will even pay attention to this string.

You may wish to check google for the "anti-tracker".  I think _that_ guy
lives pretty close to you.... well, closer than I do!  ;-)

Wes

Andrew Rich wrote:
> Gudday
>  
> Wanting to use the D700's ability to send waypoints as stations are
> decoded to a street level capable software package.
>  
> Does the D700 only spit out NMEA waypoint strings in "TNC APRS" mode ?
>  
> Does the D700 have to have a valid NMEA input string before it will talk
> "back" at a GPS ?
>  
> Is there a way to get to just act as a decoder sending waypoints as they
> come in ?
>  
> Cheers Andy
> 
> -----------------------------------------
> Andrew Rich - VK4TEC
> vk4tec at tech-software.net <mailto:vk4tec at tech-software.net>
> www.tech-software.net
> Brisbane AUSTRALIA
> 
>  
> 
> 
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