Table of Contents
Related Manuals for Lectronics VR Field
Summary of Contents for Lectronics VR Field
- Page 1 REFERENCE MANUAL VR Field Digital Hybrid Wireless ™ Portable Modular Receiver System Digital Hybrid Wireless U.S. Patent 7,225,135 Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com...
- Page 2 VR Field Receiver LECTROSONICS, INC.
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Page 3: Table Of Contents
Modular Digital Hybrid Wireless™ Receiver Table of Contents Introduction......................................5 VR Field Functional Block Diagram ..............................5 VR Field ........................................5 Antenna Multicoupler ..................................5 Microprocessor Control ..................................6 Frequency Tuning Groups ................................6 Digital Signal Processor ..................................6 Compatibility Modes ..................................6 Ratio Diversity and Frequency Diversity Reception........................6 DSP-Based Pilot Tone ...................................6... - Page 4 VR Field Receiver LCD.Menus.and.Setup.Screens.(Descriptions.and.Functions)......................13 Top Menu ......................................13 Setup Menus ....................................13 Setup Screens ....................................13 SetUpRx Menu ....................................13 Level Setup Screen ..................................13 Phase Setup Screen ..................................14 TxBatt Setup Screen ..................................14 SmartNR Setup Screen ...................................15 PilotBP Setup Screen ..................................16 Compat Setup Screen ..................................16 Pilot BP Shortcut ..................................16...
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Page 5: Introduction
VR Field be transmitted in a robust manner over an analog FM Each VR Field spans two frequency blocks and sup- wireless link. The receiver employs the latest filters, RF amplifiers, mixers and detector to capture the encoded ports from one to six receiver modules. -
Page 6: Microprocessor Control
In addition to the audio, a 1 kHz tone is also available of a system (frequency block). This eliminates squelch from the DSP. This tone is used to preset the VR Field problems in multichannel systems such as the VR Field System’s audio output levels according to the input re-... -
Page 7: Smartnr ™ ) Smart Noise Reduction
Modular Digital Hybrid Wireless™ Receiver (SmartNR™) Smart Noise Reduction PLL and VCO Circuits While the VR Field System has been designed using Each receiver module is frequency agile and can be set the best available low noise components and tech-... -
Page 8: Power Supply
VR Field Receiver Power Supply The VR Field System can be operated from a single NP1-type battery, or an external DC power source with a range of +10 VDC (1.2 A) to +18 VDC (700 mA). (A +15 DCV, 1.23 amp power source is supplied with each unit.) The receiver has a built-in Poly-Fuse to... -
Page 9: Front Panel Controls And Functions
SetUpRx. Function Button NP1 Type Battery Used for special functions in selected Setup Screens. The VR Field can be powered by any type of NP1-style LCD Screen battery, an industry-standard battery that is readily available from pro audio/video suppliers. The LCD Screen is a graphics-type Liquid Crystal Dis- play used to set up and monitor system operation. -
Page 10: Rear Panel Features
VR Field Sys- tem to external equipment. RS-232 Port A serial RS-232 interface is provided for setup and control of the VR Field System from computers or other devices using industry standard RS-232 communication links. LECTROSONICS, INC. -
Page 11: Lcd.interface
Modular Digital Hybrid Wireless™ Receiver LCD Interface While the software supplied with the VR Field System Overview Screen may make setting up and operating the system quicker Relative.Audio.Level and more efficient, the system can also be completely Individual.Receivers set up and controlled via the front panel LCD and con- .1..2..3..4..5..6. -
Page 12: Receiver Detail Screen
VR Field Receiver monitoring status, the battery status of the associated If there is an indication that one of the group tuning receiver (relative charge left or time of operation) and modes is active for the selected receiver module, then the relative RF signal strength. -
Page 13: Lcd.menus.and.setup.screens.(Descriptions.and.functions)
Modular Digital Hybrid Wireless™ Receiver LCD Menus and Setup Screens (Descriptions and Functions) Top Menu SetUpRx Menu The Top Menu is accessed from the Overview Screen The SetUpRx menu accesses the setup screens used by pushing the MENU/SELECT rotary control. Rotating to control the operation of the receiver modules. -
Page 14: Phase Setup Screen
VR Field Receiver Selected.Receiver An internally generated 1 kHz audio test tone can be made available at the selected receiver’s XLR output. This tone is used for precise level matching with other equipment without actually going “on the air” and can Receiver. -
Page 15: Smartnr Setup Screen
Modular Digital Hybrid Wireless™ Receiver 9V LTH (9VL) - For Lectrosonics Digital Hybrid (400 Overview Screen Series) and 200 Series transmitters using 9V lithium batteries. The voltage remaining in the battery is dis- played as an icon on the Overview and Receiver Detail screens and as the value on the TxBatt Setup Screen for the selected Receiver Module. -
Page 16: Pilotbp Setup Screen
VR Field Receiver Selected.Receiver Caution: PilotBP was made available as a diagnostic tool in the case that a receiver does not appear to be working properly, or to determine the nature of RF interference. However, it should be used with caution. The selected receiver can output very loud noises in this mode. -
Page 17: Tuning Setup Screen
Modular Digital Hybrid Wireless™ Receiver Tuning Setup Screen selected for Receiver 1. The small “a” displayed next to the Frequency Select Switch settings in the Receiver The Tuning Setup Screen allows selection of one of four Detail Screen indicates that this receiver module has factory set frequency groups (Groups A through D), two been set tuning Group A. -
Page 18: Divmode Setup Screen
DivMode Setup Screen The VR Field System offers three different Diver- sity modes of operation: SmartDiversity (switched), ™ OptiBlend ™... -
Page 19: Frequency Diversity
RF signal strengths. the VR Field System performs a ratio blend of the audio The INVT control is used during system setup to match output from the associated receiver modules to protect the audio from each transmitter/receiver module pair. -
Page 20: Scan Function
Function during normal operation may result in unwanted audio interferrence, or accidental retuning of the scanning receiver modules. The VR Field System has an integrated scanning function that displays a spectrum analysis as it scans across the frequency block range. The purpose is to Currently.Selected. -
Page 21: Stop Mode
USB serial ports. As commands are transferred per right corner of the display. through either of these ports to the VR Field System, Up to six individual cursors appear in Scan mode, those commands are listed in order of entry on the depending on the number of receiver modules installed CmdView Screen. -
Page 22: Frequency.coordination
VR Field Receiver Frequency Coordination channel wireless systems. It does this by identifying Intermodulation interference is a problem constantly potential intermodulation problems and listing compat- lurking in the background, especially when working ible frequencies and frequency groups. This chart can... -
Page 23: Frequency Compatibility Diagram
Modular Digital Hybrid Wireless™ Receiver Frequency Compatibility Diagram (See guidelines on page 16 for explanation) Rio Rancho, NM... -
Page 24: Using The Scan Function
(The remaining guidelines make the assumption Field system itself. The RF spectrum analyzer built into that you are choosing frequencies within one the VR Field system uses a receiver in each frequency frequency set.) block to scan the tunable spectrum and find clear chan- 2..Frequencies.within.an.individual.block.in.the. -
Page 25: Antenna.use.and.placement
Warning: Phantom power operates independently of the power switch. When using battery power, you must disconnect the battery when the VR Field is not in use to prevent the battery from continuously discharging. Remote antennas can be placed at a distance from... -
Page 26: Vr.field.replacement.parts.and.accessories
VR Field Receiver VR Replacement Parts and Accessories DCR15/1A2U DCR151/A2U Power Supply for VR Field Receiver; 90-240 VAC, 50/60 Hz input; 15 VDC (regulated), 1.2 A max. output, 18 W. A500RA UHF flexible whip antenna with right angle BNC connector (470 - 767 MHz) -
Page 27: Troubleshooting
RF.Level.Weak. Improper length antenna (if using UHF Whip Antennas) Excessive length of cable between VR Field System and remote antenna assemblies. (Add UFM-50 if necessary. See Accessories.) Antenna cables or connectors defective. - Page 28 Receiver Module and see if the noise lowers correspondingly. If the noise remains, the problem is not in the VR Field System. Receiver Module output is too low for the input of the device it is feeding.
- Page 29 Check for Intermodulation problems. (See Frequency Coordination.) Note: A number of symptoms may be caused by a strong interfering signal on the same frequency. Use the VR Field System’s Scan function to verify the transmitter and receiver are operating on a clear frequency channel.
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Page 30: Specifications
Block 27/28 691.200 - 742.300 Block 28/29 716.800 - 767.900 Pilot tone: 25 to 32 kHz; 5kHz deviation; unique pilot tone frequency for each selected carrier frequency, (Digital Hybrid mode) Deviation: ± 75 kHz (max), (Hybrid mode) Receiver Type: Triple conversion, superheterodyne Frequency Stability: ±0.001 % Front End Bandwidth: VRF (VR Field Master): 50 MHz @ -3 dB VRS (Standard Module): 30 MHz @ -3 dB VRT (Tracking Module): 11 MHz @ -3 dB Sensitivity (20 dB Sinad): 0.9 uV AM Rejection: >60 dB, 2 uV to 1 Volt Image & Spurious Rejection: 85 dB... -
Page 31: Service.and.repair
Modular Digital Hybrid Wireless™ Receiver 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 interconnect- ing cables and then go through the Troubleshooting section in this manual. -
Page 32: Limited.one.year.warranty
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.
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