Download StratoLoggerCF

The altimeter has two electronic outputs for firing parachute
deployment ejection charges using electric matches. If you
connect a single electric match and associated ejection charge
to the apogee output, you will get single event deployment –
similar to normal motor-based deployment but with greater
accuracy and no worries about selecting the right ejection
delay time. You can also use two electric matches and two
ejection charges for two event deployment: The charge
connected to the apogee output will separate your rocket and
eject a small drogue chute at apogee, and the charge connected
to the “main” output will deploy a larger chute at an altitude
that you select closer to the ground. The next section describes
this feature in more detail.
The StratoLoggerCF has an on-board data connector that is
used for two basic functions: Post-flight retrieval of saved data
from the altimeter, and real time data output during flight
using the telemetry feature. The optional data transfer kit and
software allow the user to transfer flights from the altimeter’s
internal memory to a computer for storage, display, and
manipulation. The data transfer kit can also be used to
configure various settings within the altimeter, including nine
“presets” of user-specified parameters that can be easily
selected at the launch site when a computer may not be
available. For advanced users, the telemetry feature can be
used to send in-flight data back to the ground during flight
using an RF modem (not included), or for experimental
payloads that need current altitude data to control functions in
real time.
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