4.
Record Level Control
- It is equally important to be able to
control the volume of the data signal while it is being recorded onto
tape. Too high of a level will distort the signal and too low of a level
will not provide enough playback volume to drive the CASSETTE
circuit. A VU Meter or Record Level indicator LED is necessary for
you to visually set the record level. Many cassette recorders have
an "ARL" (Automatic Record Level) feature which automatically
sets the record volume to its optimum level. ARL replaces the
need for a separate record control and meter and will simply use a
record LED indicator. Both of these methods work just as well.
Options
5.
Record I Play Tone Control
-
If your cassette machine has a
tone control, set it to its half setting. A tone control is helpful but
not absolutely essential.
G.
Tape Counter
- Since you will be able to fit many banks of data
on one cassette, a 3-digit tape counter to index where the data
starts and ends will be helpful.
7.
AC Adaptor
- Most cassette recorders made today have a jack
for an optional AC adaptor. You may want to consider getting one
to insure proper tape speed. Making a tape with low batteries
means that the tape will not play back properly when fresh batteries
are used. An AC adaptor is also convenient in that you won't have
to replace the batteries every few days.
You Will Also Need . . .
8.
Tape
- A good quality grade of tape can make the difference
between consistent successful data transfers and total frustration.
You don't have to buy the expensive premium tape but stay away
from the 3-for-99¢-drug-store "specials" too. You want a tape that
is made from good materials - dropouts on the tape or an
inconsistent tape surface will cause nothing but problems.
You should also use a tape that is "biased" for the machine that
you are using. Chrome or metal tape will not usually work on most
portable cassette recorders. Some experimentation may be
required here.
9.
Connecting Cables
- Your cassette interface system requires
two standard audio cables in order to connect the tape recorder to
the MATRIX-GR. The cable must be "2-conductor sheilded" with a
1 /4" plug on the MATRIX-GR end and a 1/8" Mini plug on the
cassette end. If you are using a stereo deck, the plug should be an
RCA type.
Do not use "attenuating" type cables as these are designed to
reduce the signal from one end of the cable to the other.
Matrix-GR Owner's Manual
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