User Manual
Table Of Contents
- Strata Transmitter
- Operations Guide
- Theory of Operation
- Command and Control Power Supply
- MPEG/COFDM Encoder/Modulator
- FMT
- TCU
- TXU
- HPU
- TCU/TXU Front Panel Control Settings
- Notes:
- In the case of digital audio connections, note that the GND (ground) connection is common to two audio circuits as opposed to the connections used for standard analog audio circuits. In the case of digital audio circuits then, a single XLR connector sup
- Strata TX Digital and Analog Audio Options
- Strata Power Cables
- MRC 907386-1 COFDM/MPEG Encoder PWB Layout
Strata Operations Guide
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14 -
TCU TXU HPU
!
NTSC
!
PAL
!
SDI
!
ASI
!
IF
RF OUT
RF/DC
Telemetry Telemetry
IF or Baseband Signal
DC Simplex Powering
IN
Dummy Load
12 v to 48 v
DC
RS-232
1.84 MHz OOK Tone
12 v to 48 v
DC
RS-232
Typical Strata System Configuration Setup
Strata TX Powering Options and Cautions
Note the following recommended Strata system powering options and rules.
1. TCU stand-alone powering: +12 volts to + 48 volts DC.
2. TXU stand-alone powering: +12 volts to + 48 volts DC.
3. TCU and TXU adjacent: +12 volts to + 48 volts DC. *
4. TCU separated from TXU/HPU (TXU supplying power): +48 volts DC (for distances > 100 feet). **
5. TCU separated from TXU/HPU (TCU supplying power): +24 volts (minimum). ***
Notes:
* When powering adjacent TCU/TXU configurations, apply power to both TCU and TXU units.
** Special rules apply for longer distance separation applications depending on coaxial cable type,
distance and whether an HPU is used.
*** Necessary to reduce current drain over IF coaxial cable – recommend +48 volts.