[drats_users] Why GPS over GPS-A

[John Davis]

Last week, we were preparing for an 84 mile MS Bike Ride and were using D-STAR 2820 radios in the SAG vans.  When transmitting GPS format, it did not report to APRS sites.  When using GPS-A, it did not map on D-RATS.  Any thoughts?  We will do some more testing this week.

John
WB4QDX

-----Original Message-----
From: drats_users-bounces at intrepid.danplanet.com [mailto:drats_users-bounces at intrepid.danplanet.com] On Behalf Of Dan Smith
Sent: Monday, April 12, 2010 4:44 PM
To: Discussion of D-RATS
Subject: Re: [drats_users] Why GPS over GPS-A

Hi John,

> It’s my understanding that D-RATS requires GPS format instead of
> GPS-A for mapping.

D-RATS can send or receive either format.  The default is GPS because
it's supported by all of the radios.

> If so, why not GPS-A since it has CRC and is compatible with other
> APRS apps?

GPS has a checksum.  In what way is GPS-A more compatible with APRS than
GPS?  The software on a gateway or a personal station will report
either of them to aprs-is.

-- 
Dan Smith
www.danplanet.com
KK7DS

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