Signal-GK was a Traveller fanzine.
Signal-GK was a fanzine put together by Jae Campbell and J. Duncan Law-Green and published in the late 80's and early 90's.
The primary objective was the mapping of the Dagudashaag and generation of the complete Library Data. Each author was allowed to cover different eras with their articles, with the hope that the reader could adapt to their own preferences.
- Signal-GK 01: A cry for help - A call to adventure!
- Signal-GK 02: Aslanti Rising
- Signal-GK 03: Orbital Waltz
- Signal-GK 04: The Tower
- Signal-GK 05: Weeping Spire
- Signal-GK 06
- Signal-GK 07
- Signal-GK 08: Rebellion Special
- Signal-GK 09
- Signal-GK 10
- Signal-GK 11
- Signal-GK 12
- Signal-GK 13
- External Link: Signal-GK Homepage (at Internet Archive)
- Internet Archive 
History & Background (Dossier)
In 2006, Leighton Piper, who was one of the primary contributors has begun to republish, in PDF format, the original thirteen issues of Signal-GK.
In 2017, Jae Campbell collected the library data for the whole Dagudashaag Sector into one book: Encyclopaedia Dagudashaag.
- He also made PDFs of the full issues available here.
Much of the work was done in conjunction with HIWG, though the data in Signal-GK didn't always go through the HIWG approval process before publication.