COFDM Transmitter Module Model Pd-TX-1000 1 Watt Output DTC COMMUNICATIONS, INCORPORATED
how to contact DTC copyright notice warranty For operator and troubleshooting information, customers are encouraged to refer to the details in this manual. For additional clarification or instruction, or to order parts, contact DTC. Copyright © 2005 DTC warrants its manufactured components against defects in material and workmanship for a period of two (2) years, commencing on the date of original purchase.
TABLE OF CONTENTS manual conventions NOTE: Describes special issues you should be aware of while using a particular function. WARNING: Calls out situations in which equipment could be damaged or a process could be incorrectly implemented, but in which operator safety is not a factor. TIP: Describes application hints. Quick Start ............................................................................ 4-5 Complete These Steps ................................................................
QUICK START Complete these steps: 1 1 Connect the transmitter antenna to the SMA connector on the Palladium unit (see photo left). 2 Attach a 12 VDC power source (such as a battery pack or AC power adapter) to the power block as shown below. The input voltage range is from 10 to 18 VDC. NOTE: Device is polarity sensitive. Connect DC power only as shown below; black to black (-), red to red (+).
QUICK START 5 When power is applied, the green RF LED turns ON. The channel number LED also turns ON, representing the most recent channel setting from the last time the transmitter was used. Push the RF button to transmit. 6 If you need to change the operating channel, press the CONFIG button to cycle through the 8 available channels indicated by the channel number LEDs. Refer to the Programming section on page 10 for more information on channel settings.
INTRODUCTION The Palladium Series of digital video transmitters provide exceptional video quality in high multipath environments. They are ideal for use inside buildings, in urban areas, and in other applications where multipath would normally cause video tearing or breakup. Palladium TX-1000 1 Watt Digital Transmitter All Palladium Series transmitters are designed for spectrum-efficient 2.5 MHz channel spacing. Approximately 400 carriers are used to transmit video and two channels of voice and data.
OPERATION Using your Palladium Transmitter Follow the instructions given in the Quick Start section on pages 4-5. When power is first applied to the Palladium, the unit reverts to the last used channel and RF is turned ON. One of the green channel LEDs will turn ON indicating the active channel. The Alarm LED may be ON, which indicates that there is no active video input.
COMPONENTS Transmitter Control Panel Channel LEDs These green LEDs, numbered 1 through 8, indicate the channel number currently selected. Each channel represents a set of preconfigured settings. ALARM LED This red LED indicates a valid video signal is not present. RF LED This green LED indicates that the RF output is ON. RF Button This membrane switch toggles ON/OFF the RF output. CONFIG Button This membrane switch cycles through the eight channels. 8 DTC COMMUNICATIONS, INC.
COMPONENTS Programming Connector (DB-9) See Page 10. Video Input Connector 75 Ohm Composite Video Signal DC Power Input 10-18 VDC Transmitter Antenna Connector (SMA) This connector attaches to the transmitter antenna and carries the RF output signal. Always ensure the transmitter antenna is attached before operating the Palladium Transmitter. FCC ID Label This label identifies the frequencies programmed into the Palladium Transmitter. Control Panel See Page 8. DTC COMMUNICATIONS, INC.
PROGRAMMING System PC Controller Application Software Advanced control of the system is available by using PC control applications. Typically users may want to customize the default configurations to control settings such as frequency, scrambling keys, modulation parameters, and video resolution. The transmitter is controlled by the application DTC_tx_ctrl.exe available on the CD delivered with the product.
PROGRAMMING Transmitter Control Application Output Frequency (MHz) The transmit frequency can be changed by entering the new desired frequency in this field. Values outside the range supported by a particular transmitter type will be rounded to the highest or lowest supported frequency as appropriate. The resolution of the transmit frequency is complex and resolved to the closest achievable within the constants of the supported step sizes of 1MHz, 1.6667 MHz and 2.5 MHz.
PROGRAMMING Output Attenuation This control can be used to make minor adjustments to the output power level, but in normal operation should not be changed from factory settings. Video Input This control is used to select the composite video input standard. Options are PAL, and NTSC both with and without 7.5 IRE pedestal. Video Bitrate This control can be used to set the video bitrate within the constraints of capacity available in the channel, but only when Chaining Input is set to ON.
PROGRAMMING Audio Input Level This control is used to define the audio gain to be applied to the audio input signal. 0dB is used for line level audio and various options up to 48dB of gain can be applied for microphone inputs. Unit Name Can be user defined. Type in name. Sleep Mode This control allows the unit to be forced into a Sleep Mode where main functions are disabled, and the power consumption is significantly reduced. Data Future use. Data Baud Rate Future use. Chaining Input Future use.
PROGRAMMING Current Config This field reports the last loaded configuration number. Note that for the Palladium transmitter, changes applied after the configuration has been loaded are saved immediately into the current configuration. Scrambling Scrambling must be enabled at the transmitter by selecting AES in the scrambling field. At this point the user will need to ensure that the correct key is in use and this is done by using Options/Write AES key.
PROGRAMMING Options Timeouts – password protected access to change timeouts used during the serial communications between the unit and the controller. Engineering – password protected access to further diagnostic and calibration features. Write License Code – open a further password protected box for entering license codes for future use.
SPECIFICATIONS Physical Unit Dimensions Pd-TX-1000 Environmental Operational Temp with Heatsink Ambient Temp with Heatsink 16 DTC COMMUNICATIONS, INC. 14 x 9 x 3.5 in (356 mm x 229 mm x 89 mm) -10 degrees C to 70 degrees C -10 degrees C to 40 degrees C Power Input Voltage Power Consumption Pd-TX-1000 Fully Operational ~ 2 W, Sleep Mode < 0.5 W Control PC Control Interface Memory RS-232.
SPECIFICATIONS Audio Encoding Input 1 Bitrates 7 Sampling Frequency THD Response Crosstalk S/N Stereo or Dual Mono pair 28 kbps to 72 kbps depending on configuration 32 kHz, 16 kHz or 8kHz < 0.1% max 20Hz to 6KHz, +/- 0.25dB > 55 dB min 60 dB RMS Composite Video Input Standards Specification Connector Composite PAL and NTSC decoding NTSC (with and without pedestal) or PAL Rec. ITU-R BT.
TWO YEAR WARRANTY DTC Communications, Inc. (DTC) warrants its RF transmitting and receiving products to be free from defects in workmanship or material for a period of two (2) years from the date of shipment unless otherwise stated. The liability of DTC, Inc.
Sales Representatives Nashua Main Office Numbers voice (603) 880-4411 toll free (800) 233-8639 fax (603) 880-6965 Director of Federal Sales John Morgan (Nashua Main Office Numbers) direct voice (603) 546-2122 cell (603) 320-3257 jmorgan@dtccom.com Federal Sales Manager Marianne Caiazza (Nashua Main Office Numbers) direct voice (603) 546-2121 cell (603) 320-3256 mcaiazza@dtccom.
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