Hi Kelley,
... searching for settings specific to this unit for ARISS work
I'm not familiar with the Kantronics syntax for typing commands but see below for a general summary of the parameters you may find useful.
ARISS has a summary of hardware TNC and soundcard TNC operations posted at: http://www.ariss.org/uploads/1/9/6/8/19681527/k9jkm_2012_symposium_ver 2.pdf (careful, might line wrap this URL)
The list of parameters you will find useful but may need to adapt to Kantronics syntax:
MYCALL - Your Callsign Default is NOCALL, but you want others to know you are there.
DAYTIME - YYMMDDHHMM Used if you want to timestamp the packets you are receiving.
MONITOR ON - Displays all packets on the frequency
MALL ON - Displays all packets on the frequency (connected or unconnected)
MCOM ON - Displays the AX.25 protocol with the message (might clutter your screen)
MCON ON - Allow you to see all packets even when in CONVERS mode
MSTAMP ON - Monitored packets are timestamped
MRPT ON - Displays the entire digipeat path for the packets.
CONSTAMP ON - Connect and disconnect status messages are timestamped
HEADERLN ON - Header information is displayed on separate line from message text
PASSALL ON - TNC will accept and display packets that have errors (noise). Partial packets, even with errors, are often still readable to the human eye.
PASSALL OFF - TNC will only accept and display packets that have complete CRC.
CONVERS <enter> - Mode to type packet message from keyboard directly to the TNC. Ctrl-C will exit CONVERS mode.
MHEARD <enter> - Displays your TNC's "heard" list (updated only when PASSALL OFF)
UNPROTO CQ VIA ARISS - Most basic string for ARISS to copy, route, and digipeat your packet
-- 73 de JoAnne K9JKM k9jkm@amsat.org