Bob,
Thanks for the correction! I was not aware of the colon that goes before the call sign. I have also corrected my QRZ.com page, to include that colon. This allows anyone who uses a simple terminal program to send APRS messages, and not just those using programs like UISS or the APRS-capable radios like the TH-D72A I use (and used last night for a couple of quick QSOs via the ISS digipeater).
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK
On Wed, Apr 20, 2016 at 4:06 PM, Robert Bruninga bruninga@usna.edu wrote:
Correction: The format for a manually typed APRS message to be captured by an APRS radio's front panel is a colon, then a 9 byte callsign field (padded with spaces) and then another colon and text. The example should have been:
:WD9EWK-9 :hello from (grid, city/state, etc.)
This does not include a line number intentionally, because a line number forces an automatic ACK and that just adds collisions and congestion on the ISS digipeater channel. Bob, WB4APR