A few questions/comments:
Then you'd better check on whether your comm unit still works after you've been fiddling with it.
The comm link does seem to be working fine. The device was not integrated into its circuitry at all, just placed inside of it.
Drop the transponder down the pooper...and go to the rondevous. Call Callie immediatley and don't let her know your onto her.
I'm sorry, do you mean call Callie right now, or immediately after the rendezvous? And what would you say??
second after youv done that ask you rebel friends what you shoyuld do oh heres a plan ok have one of the rebels that you and callie hasnt seen go into the cantina then useing your comm call her and tel her that youve made contact soo whereeverthe loner is shell think you are shell alert the impys and run of then you and your rebel frend whos ther can tell you and the rebels shes gone then ucan bug her office so you can hear what she says also do it to the bar so you can listen in
Well, this is a long and very complicated plan which hinges on too many contigencies at the moment....but you should definitely file it away for later if things go accordingly.
The idea about slipping it on someone else is cool, but I'd flush it. Floating in space will make them think you're in a starfighter.
What makes you think the station flushes its waste into space? The station doesn't go anywhere, after all....it's not a ship or a plane. That could get messy after a while for incoming ships, to say nothing of the view....

I'd ask Callie about the 3 men outside your ship next chance I got, but for now, I'm keeping the tracker.
You did happen to mention the three guys outside your ship to Callie back at the bar. She speculated that they might be members of a notorious group known as the Terasi Pirates (not that you know what that is....)
Excellent discussion, folks! Some really great suggestions and theories. As much as I'd love to post a follow up right away, it'll still probably be a few days. It's really great to have this level of thought and participation put into the game, it makes it all worthwhile!!