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OVERVIEW
POD33 is a Digital Audio Reference Signal (DARS) generator. This DARS reference signal can
be synchronized to an external Video or AES reference or it can be synched to an internally
generated 96 kHz or 48 kHz reference. P OD33 is designed to selectively provide a 100 Hz, 400
Hz or 1 kHz tone at amplitudes ranging from Digital Silence through 60 dBFS to 0 dBFS.
POD33 has four independent digital outputs. Each output is available as an unbalanced 75
Ohm or balanced 110 Ohm signal. These outputs can be individually set to be either an AES
reference or a Word Clock signal. The level and frequency for each individual output can be
set.
All controls and readouts are located on the front panel. Input, output and power connections
are located on the rear panel.
balanced AES signals and unbalanced AES and video reference connections are made via
BNC type connectors.
FRONT PANEL CONTROLS AND TALLIES
The operable controls and tallies located on the front panel include:
1
A power ON/OFF switch and green LED that illuminates when the unit is powered
up.
2
Three tallies labeled A ES , V IDEO and I NTERNAL illuminate to indicate the type of
reference that is selected. If a reference tally is illuminated but flashing it indicates
that the selected reference signal is not available. POD33 will automatically search
for and switch to the next available reference signal. The search hierarchy for
reference signals if A ES is selected is A ES – VIDEO – INTERNAL. If V IDEO is
selected the search hierarchy is V IDEO – AES – INTERNAL.
3
Two shaft encoder rotary controls labeled S ELECT and ADJUST. Each rotary
control has an integral pushpush switch
4
A sixteen character LED dotmatrix readout.
OPERATION
When the unit is first powered on the readout displays P od 33 VXXX. ( V XXX is the operational
software version identification and should be noted when calling the factory for technical
assistance) After a brief period the default status display appears which shows the levels for
the A and B channels of the AES 1 signal.
The S ELECT control allows you to scroll through the four DARS outputs (AES 1 to AES4) and
display the settings for that output. For example AES 2 is selected and the readout shows
AES2 A/B 20/10. This means that on the AES2 reference output the level of the A channel is
set to 20dBFS and the level of the B channel is set to 10 dBFS . To view the frequency
settings for the AES 2 output push the A DJUST knob once. The readout should change to
display the frequency settings for AES 2. For example if the display reads A ES2 A/B 1k/400
DARS GENERATOR
Phoenix 3pin pluggable connectors are provided for the
POD33
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