Thanks for the replies! The link @tjanos posted is, in fact, our project.
To answer your questions,
1: Satellite name: Phoenix CubeSat (website: phxcubesat.asu.edu)
2. 1 transceiver (UHF amateur frequencies). We are using the AX100 from Gomspace
3. Frequency: 437.35 MHz
4. baud: 9600
other information: packets follow the KISS and AX.25 protocols
Regarding decoding instructions, we have been using a Kantronics TNC and an ICOM 9100 radio to receive our data and our ground station code to decode the packets. We are posting our ground station code to our website soon to give this info to others. So far it appears that the best way to decode our packets is to use hardware and our ground station code.
We have tried using an RTL-SDR and software TNCs which use the sound card to decode the packets, but we haven’t had success with this yet. The SDR can pick up the signal fine, but the software TNC is unable to decode it. We’ve tried HS Soundmodem, AGWPE, and Direwolf without luck. I know 9600 baud packets are difficult to decode, however. Our plan so far is for people with SDRs to send us their recorded signal, and we can decode it to see if it is our spacecraft. I’m not sure if you might have additional advice there based on your experience.