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Overview Design Goal - Create a high reliability telemetry, command, and control module that can be used from mission to mission. The following are the design goals of the Payload Computer system.  All functions
in a single, compact module. Total weight 3 pounds
including batteries (actual weight is 3¼ pounds). Size 6" wide x 7" tall x 5" deep.Mil spec to
survive impact/vibe, extreme temperatures (-40° C to° C), and system faults.User configurable through RS-232 port.
Mission to mission configuration changes do not require software load.Shown below is the complete Payload Computer ready for flight. A GPS Antenna sits on top of a solid ground plane. Antenna, power, and I/O connectors are located on the bottom of the package.  Payload Computer. Overview The following are the key features of the Payload Computer system. On
board embedded controller utilizes C programming language and
provides a good ratio of processor MIPS to DC power usage.
Flight
Data Recorder with 512K bytes of battery backed memory.Transmit/receive
frequency,
CTCSS frequency, and transmit power controllable during flight.
Command
and control through TNC or DTMF (touch tones).
Telemetry
through standard APRS (AX.25) messages.
High
efficiency >90%, high frequency 2.6MHz switching power converter.
Minimal
weight for large number of functions.
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