Backup to Credit Card Memory (CCM)
Backup means transferring data stored in the AVA to a transportable memory that looks like a credit card.
Ensure the small battery cover on the CCM is facing away and that the end opposite the battery cover is the
end inserted into the slot. Insert the CCM into the slot at the back edge of the CADU (behind the panel). A
firm push on the CCM is necessary to engage it with the CCM interface mechanism inside the CADU.
To execute transferring data to the CCM, place the cursor over the Backup to CCM option and press DO.
The data to be backed up has to be identified by Tail number, Aircraft type, or Flight ID number via a set of
five screens. The last screen asks if data backup is really desired and whether to delete the original data
stored in the CADU.
Restore from Credit Card Memory (CCM)
Restore means downloading data from the CCM to the CADU memory To restore data from the CCM, place
the cursor over the Restore from CCM option and press DO. The restore procedure requires identifying the
data needing to be restored. The data to be restored has to be identified by Tail number, Aircraft type, or
Flight ID number via a set of five screens.
Transfer to PC
Transfer means downloading data directly from the CADU to an external computer. To transfer data to an
external computer, place the cursor over the Transfer to PC option and press DO. The data to be transferred
has to be identified by Tail number, Aircraft type, or Flight ID number via a set of screens. The last screen,
Entry Form, will ask if data back up is still desired. A YES answer is followed by two screens with explicit
instructions to follow in making the transfer to the PC. At the completion of the data transfer to the PC, a
menu appears prompting the user to enter either "yes" or "no" as to whether they want to delete the data
which was just transferred to the PC from the CADU database. The RADSCOM communication package can
be used on the PC to simplify the backup to PC operation.
The data transfer option allows the backup of collected data onto either a CCM device onto a computer
running the KERMIT communication protocol. The information that has been transferred can be reloaded
into the CADU database and used or reviewed again, even to the point of re-running diagnostics on the old
(a) The files transferred to the CCM are in a minimized binary format that allows for a maximum amount of
flight data to be stored. A directory is created on the CCM that stores the flight data by aircraft type, tail
number, and flight ID.
(b) The backup operation is usually performed when the CADU internal memory space is filled and the user
wants to make new measurements. First, the user performs a backup of the data that he wants to save
onto the CCM. Then he deletes this data from the CADU and performs a compress function (under Data
Management) to obtain more disk memory space.
(c) The directory structure of data backed up onto the CCM allows the user to restore flight data for a
selected aircraft by tail number or flight.
(d) It is not necessary to use a credit card for data storage if there is access to an IBM compatible computer.
Data can be archived on inexpensive floppies or the hard disk. The data transferred to an external
computer is written in text format in the form of eight separate files. The format of these eight files is:
The status report screen, figure 4, provides a variety of system information that may be useful in system setup
and equipment setup. Not all the information will be displayed on the screen, but will be printed if the PRINT key
is pressed. Place the cursor over the Status selection and press the DO key. The Status Report provides the
Current setup including the current Aircraft Type, Flight Plan, Tail Number and Flight Flown.
Available aircraft types that have been loaded into the CADU database.
Printer Status. This block indicates the current printer type that has been selected and whether the printer is
running. In order to print screens, the printer type should be selected to be compatible with the printer.
Printing should be enabled and the spooler should be running.
Measured Results. This block provides a list of the number of each of the measurement types currently
stored in the database.