INSTRUCTION MANUAL DPR Plug-On Transmitter With Digital Hybrid Wireless® Technology Digital Hybrid Wireless® US Patent 7,225,135 Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.
DPR Table of Contents General Technical Description ............................................. 4 Features................................................................................... 6 Battery Installation................................................................. 7 Attaching/Removing a Microphone...................................... 7 Operating Instructions........................................................... 8 Transmitter Operating Instructions......................................
Digital Hybrid® Plug-On Transmitter For body worn operation, this transmitter model has been tested and meets the FCC RF exposure guidelines when used with the Lectrosonics accessories supplied or designated for this product. Use of other accessories may not ensure compliance with FCC RF exposure guidelines. Contact Lectrosonics if you have any questions or need more information about RF exposure using this product..
DPR Thank you for selecting a Lectrosonics DPR plug-On transmitter. The unique design provides several distinct features for professional applications: • Outstanding UHF operating range mitter circuits from the beginning (3 Volts) to the end (1.7 Volts) of battery life, and an ultra low noise input amplifier for quiet operation.
Digital Hybrid® Plug-On Transmitter Outstanding Audio Performance The audio performance of the overall hybrid system is depicted in the graph below. Distortion in the system is extremely low over the entire audio bandwidth. Control Panel The control panel includes five membrane switches and an LCD screen to adjust the operational settings. Multicolor LEDs are used to indicate audio signal levels for accurate gain adjustment, battery status and encryption key function.
DPR Features Input Coupler Modulation LEDs MENU/SEL Button LCD UP Arrow PWR LED KEY LED The MENU/SEL button is used to display the transmitter menu items. Press once to open the menu, then use the UP and DOWN arrows to scroll menu items. Press MENU/SEL again to choose an option from the menu. BACK Button Once a selection is made in a menu, press the BACK Button to save your selection and go back to the previous menu.
Digital Hybrid® Plug-On Transmitter Battery Installation The battery compartment door is made of machined aluminum and is hinged to the housing to prevent it being damaged or lost. The transmitter is powered by two AA batteries (lithium recommended). Note: Standard zinc-carbon batteries marked “heavy-duty” or “long-lasting” are not adequate.
DPR Operating Instructions • UP Arrow Modulation LEDs KEY LED PWR LED Have the user talk or sing at the same level that will be used in the production, and adjust the input gain so that the -20 LED blinks red on louder peaks. Input...
Digital Hybrid® Plug-On Transmitter • Press MENU/SEL, choose SDCard and Record from the menu SDCard... Record Files Takes • 470.100 RECORDING REC DPr 00 : 02 : 37 -20 -40 +0 To stop recording, press MENU/SEL, choose SDCard and Stop; the word SAVED appears on the screen SDCard... Stop Files Takes 470.
DPR DPR Menu Input Gain SEL BACK Use arrow keys to select input gain 22 Rolloff Use arrow keys to select 70 Hz Phase Use arrow keys to select audio output polarity Normal Invert Phantom 48V Xmit SDCard SEL BACK Freq 555.
Digital Hybrid® Plug-On Transmitter TCode TC Jam SEL BACK JAM NOW Plug in time code source and sync Use arrow keys to select MENU Press frame rate of 30, 29.97, 25, 24, 23.976, 30DF, or 29.97DF SEL function Fr.Rate 30 Use Clk Key LOADING TIMECODE FROM CLOCK KeyType SEL BACK Univrsal No Yes SendKey MENU SEL Share Setup AutoOn? SEL BACK No Yes Remote Enable Ignore BatType Alk. Lith.
DPR Setup Screen Details Input Menu Main Window Indicators Adjusting the Input Gain The Main Window displays the operating frequency, Standby or Operating mode, battery status, if an SDHC card is presnt/recording, and audio level. Frequency (MHz) Battery status Audio level Operating mode 470.100 DPr 00 : 02 -40 : -20 37 Indicates micro SDHC card present and recording status +0 Connecting the Signal Source Microphones, line level audio sources, and instruments can be used with the transmitter.
Digital Hybrid® Plug-On Transmitter Selecting the Low Frequency Roll-off It is possible that the low frequency roll-off point could affect the gain setting, so it’s generally good practice to make this adjustment before adjusting the input gain. The point at which the roll-off takes place can be set to: • 25 Hz • 100 Hz • 35 Hz • 120 Hz • 50 Hz • 150 Hz • 70 Hz The roll-off is often adjusted by ear while monitoring the audio. . Input...
DPR Xmit Menu Choosing Files for Replay Selecting Frequency The setup screen for frequency selection offers two ways to browse the available frequencies. Xmit... Freq. TxPower Rf On? Freq. 494.500 Freq. 494.500 Select recorded files on microSDHC memory card. Files 0004B 0003B 0002C 0001C 0002B 0001B Choosing Takes for Replay Use UP and DOWN arrows to toggle and MENU/SEL to play back. Press the MENU/SEL button to select each field. Use the and arrow buttons to adjust the frequency.
Digital Hybrid® Plug-On Transmitter microSDHC Memory Card Info Use Clock Information regarding the microSDHC memory card including space remaining on card. SDCard... For mat Naming SD Info [DPR ] E...................F 0/ 14G Max Rec 29:52:52 Fuel gauge Storage used Storage capacity Available recording time (H : M : S) TCode Menu TC Jam (jam timecode) TCode... TC Jam Fr. Rate Use Clk TCode... TC Jam Fr.
DPR Key Menu SendKey KeyType The DPR receives an encryption key via the IR port from a key generating receiver. Begin by selecting a key type in the receiver and generating a new key (key type is labeled KEY POLICY in the DSQD receiver). Set the matching KEY TYPE in the DPR and transfer the key from the receiver (SYNC KEY) to the DPR via the IR ports. A confirmation message will display on the receiver display if the transfer is successful.
Digital Hybrid® Plug-On Transmitter Setting Battery Timer Backlit Settings A built-in timer can be used with any battery type, but it is especially valuable with rechargeable batteries such as NiMH types. The voltage remains fairly constant across the discharge time of a rechargeable battery, then drops quickly near the end of the operating time.
DPR LectroRM Android By New Endian LLC LectroRM is a mobile application for iOS and Android operating systems. Its purpose is to remotely control Lectrosonics Transmitters, including: • SM Series • WM • L Series • DPR The app remotely changes settings on the transmitter through the use of encoded audio tones, which when received by the attached microphone, will alter the configured setting. The app was released by New Endian, LLC in September 2011.
Digital Hybrid® Plug-On Transmitter Accessories 21750 Barrel Adapter Mic adapter for Earthworks M30 microphone with HM, DPR and UH400a/TM transmitters. This polarity reversing adapter may be needed to correct for asymmetrical current draw in some P48 powered condenser microphones, including older Neumann 100 Series, Rode NTG3 and others. If your microphone does not power on correctly when used with these transmitters, insert the adapter between the transmitter and microphone.
DPR Specifications and Features Transmitter Recorder Operating Frequencies: 470.100 - 607.950 MHz Frequency Selection Steps: 25 kHz RF Power output: Selectable 25/50 mW Frequency stability: ± 0.002% Digital modulation: 8PSK Spurious radiation: Compliant with ETSI EN 300 422-1 v1.4.
Digital Hybrid® Plug-On Transmitter Firmware Update Firmware updates are made using a microSDHC memory card. Download and copy the following firmware update files to a drive on your computer. 7) If you re-insert the update card and turn the power back on for normal use, the LCD will display a message prompting you to format the card: dpr vX_xx.ldr is the firmware update file, where “X_xx” is the revision number.
DPR Recovery Process In the event of a battery failure while the unit is recording, a recovery process is available to restore the recording in proper format. When a new battery is installed and the unit is turned back on, the recorder will detect the missing data and prompt you to run the recovery process. The file must be recovered or the card will not be usable in the DPR.
Digital Hybrid® Plug-On Transmitter Service and Repair If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment needs repair. Make sure you have followed the setup procedure and operating instructions. Check the interconnecting cables and then go through the Troubleshooting section in this manual.
LIMITED ONE YEAR WARRANTY The equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was purchased from an authorized dealer. This warranty does not cover equipment which has been abused or damaged by careless handling or shipping. This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any defective parts without charge for either parts or labor.
