# Ghosting on Skydemon **URL:** \ **Category:** English\ **Created:** [August 29, 2022, 8:30pm UTC](https://forum.safesky.app/t/ghosting-on-skydemon/784 "2022-08-29T20:30:56Z")\ **Posts on this page:** 1\ **Showing post:** 17
**Author:** ![Tristan](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.safesky.app/tristan/32/10_2.png) [@Tristan](https://forum.safesky.app/u/Tristan)\ **Post date:** [September 6, 2022, 8:24pm UTC](https://forum.safesky.app/t/ghosting-on-skydemon/784/17 "2022-09-06T20:24:16Z")
Hello, Thanks again a lot for supporting this issue. The latest examples needs to be interpreted right. Let’s focus on one: `SKY48FD60>OGNSKY,qAS,SafeSky:/083915h5359.04N/01626.91E’290/099/A=004435 !W20! id2048FD60 +000fpm gps4x1` Means that station called “SKY48FD60” coming from the APRS TO-CALL transmission system is “OGNSKY”. This station is transmiting a position for id “48FD60”. Because it’s coming from OGNSKY with a station starting with SKY, this ID is NOT intended to be a ICAO hex code as defined by [ATDB - ICAO 24-bit addresses - Decode](http://www.aerotransport.org/html/ICAO_hex_decode.html) We had some exchange with the team at OGN tonight, and they confirm that when an ICAO hex code is to be used as an official ID, the expected message format is: `ICA48FD60>OGNSKY,qAS,SafeSky:/083915h5359.04N/01626.91E’290/099/A=004435 !W20! id2048FD60 +000fpm gps4x1` Where the station name starts with “ICA”. From OGN documentation: [Aprs Interaction Examples - Open Glider Network Project](http://wiki.glidernet.org/aprs-interaction-examples) Therefore, as agreed with OGN team, we have just applied a patch to use ICA as a station prefix for ICAO codes. When we now use ICAO hex “4497C3”, we are getting the correct messages (see screenshot). We are also in touch with PilotAware team to ensure we are all aligned on the approach. Fly Safe, Tristan ![Screenshot 2022-09-06 at 22.09.29](https://europe1.discourse-cdn.com/flex017/uploads/safesky/original/1X/84a14ec83a07045de76c5f0deb1f00504b44b2d3.jpeg) --- _[View the full topic](https://forum.safesky.app/t/ghosting-on-skydemon/784)._