If you use a GPS receiver with your ID800 for position reporting or have a
GPS emulator program to mimic the function of a GPS receiver for use at
fixed locations, C1 contains the message string used for position
reporting:  http://www.aprs-is.net/DPRSCalc.aspx

Many folks do not use reflectors and instead source route their calls.  A
message like SET UR=/K5CTX C  tells the receiving station how to answer your
call.  (unfortunately, many hams have never learned to set UR for call
routing).

Also some JA stations have a message like RX>CS (maybe order reversed) to
let the receiving station know to capture their call to reply.  JA stations
do not have reflectors or dplus and rely on source routing.

Good to hear from you Tad,  73 steve



On Tue, Jan 19, 2010 at 6:42 PM, Tad Danley <[email protected]> wrote:

> Can someone help me with what the TX messages are used for?
>



-- 
NU5D - Nickel Under Five Dollars

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