Model UVA-4 & UVA-8
Contents
1. at the same time will reset the Video Brightness to the default setting e While using the UP and DOWN buttons if an upper or lower limit of the adjustment is reached the brightness will no longer change with each button press e Toexit the Video Brightness Adjustment mode at any time press the SEL button until all LED s are ON solid Adjustment mode Press the SEL button repeatedly until all LED s are OFF indicating the unit is ready for operation The unit will automatically return to this mode after 1 minute if no buttons are pressed Note The Video Brightness adjustment may not be noticeable when only using 1 device When products are daisy chained using the XT version the adjustment is easier to observe 3 4 Why Skew Adjustment UTP cables have 4 twisted pairs inside The Hall Research UVA URA video transmission on UTP uses 3 individual pairs for each color Red Green amp Blue Local Video Screen Figure 5 skew mechanism example As shown in the figure above a characteristic of CAT5 5e 6 cable is that the pairs of wires twist at different rates Therefore for a given length of CAT5 5e 6 cable the total length of any particular pair could be longer than other pairs in the same cable Since the signals travel along the length of each pair at a fixed speed the arrival times of signals will be skewed in a long cable those that have to travel farther arrive later and the corresponding colo2. button once to enter Adjustment mode e In Adjustment mode all three 3 LEDs will be ON e Press the SEL button once to enter the Adjustment mode Press the SEL button again to light only one of the 3 Red Green or Blue LEDs As you press SEL the Red Green and Blue LEDs will light up one at a time e The UP and DOWN buttons are used to move the selected color component to the left and right Pressing both buttons at the same time resets all skew adjustments e While using the UP and DOWN buttons if an upper or lower limit of adjustment is reached the LED s will blink for each continued press of the UP or DOWN button e Toexit the Adjustment mode at any time press the SEL button until all LED s are OFF the unit also has a built in 1 minute timeout 3 6 Signal Adjustment for the Daisy Chain There are no specific procedures for adjusting the URA XT s other than the order of adjustment The URA XT s RJ45 CATx output is the video signal AFTER IT HAS BEEN ADJUSTED The receiver unit closest to the sender must be adjusted first Set the high frequency compensation first and then adjust the skew Since the effects in the daisy chain are cumulative we recommend that you adjust the brightness see section 3 3 above Remember if the calibration is off on a URA XT in the middle of a daisy chain and you adjust the device settings you must then check the rest of the downstream devices and if necessary make additional adjustments on th
3. HALL RESEARCH user s MANUAL UVA 4 amp UVA 8 4 or 8 Channel Splitter PC Video and Audio over Twisted Pair UMA1189 Rev NC CUSTOMER Order toll free in the U S 800 959 6439 SUPPORT FREE technical support Call 714 641 6607 or fax 714 641 6698 INFORMATION Address Hall Research 1163 Warner Ave Tustin CA 92780 Web site www hallresearch com E mail info hallresearch com 4 or 8 Channel Splitter PC Video amp Audio over Twisted Pair Receivers TRADEMARKS USED IN THIS MANUAL Hall Research and its logo IHR are trademarks of Hall Research Any other trademarks mentioned in this manual are acknowledged as the property of the trademark owners FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment generates uses and can radiate radio frequency energy and if not installed and used in strict accordance with the manufacturer s instructions may cause interference to radio communication This equipment is designed to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules which are intended to provide reasonable protection against such interference when the equipment is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at their own expense will be required to take whatever measures may be necessary to correct the interference Chan
4. Operating 32 to 122 F 0 to 50 C 10 to 90 non condensing Steel 1 66 H x 8 42 W x 2 60 D Depth excludes connectors 42 2 mm H x 214 mm W x 66 mm D 1 5 lb 0 68 kg 3 0 Ibs 1 36 kg UVA 4 4 0 Ibs 1 81 kg UVA 8 ISTA 1A in carton International Safe Transit Association CE CE FCC Class A 90 000 hours Calculated Estimate 2 years parts and labor Specifications are subject to change without notice 1 HALL RESEARCH Copyright 2010 Hall Research Inc All rights reserved CUSTOMER Order toll free in the U S 800 959 6439 SUPPORT FREE technical support Call 714 641 6607 or fax 714 641 6698 INFORMATION Mail order Hall Research 1163 Warner Ave Tustin CA 92780 Web site www hallresearch com E mail info hallresearch com
5. echniques in the industry and allow full recovery of the original signal s bandwidth It is best to make this adjustment using a test pattern that is designed to depict and exaggerate this effect Some Hall Research senders may have a built in test pattern generator If your sender unit is equipped with this feature simply activate it on the sender Otherwise you can connect a PC to the source and display a test pattern A sample test pattern is available at htto www hallresearch com skew htm to assist in the adjustment of the compensation and to evaluate the amount of color skew in the installation The table below lists the recommended maximum distances from sender to the receiver depending on the resolution used Refresh Rate Table 3 Recommended maximum 800x600 1000 ft 1000 ft CATx cable length from sender to the receiver 1024x768 1000 ft 850 ft Resolution 1280x1024 850 ft 750 ft 1920x1200 750 ft 700 ft Model UVA 4 and UVA 8 3 2 Compensation Adjustment Procedure on URA Receivers If possible display a video test pattern on your video source when adjusting the URA receiver This allows the user to properly adjust the receiver to optimal conditions Apply power to the receiver Wait until all LED s are turned off Press the SEL button once to enter Adjustment mode In Adjustment mode all three 3 LEDs will be illuminated The UP or DOWN buttons can now be used to adjust the high frequency HF compensation up
6. ges or modifications not expressiy approved by the party responsible for compliance could void the user s authority to operate the equipment Nano SSA WO c nm gt Model UVA 4 and UVA 8 Contents 1 IMLOQUEHON ae 3 Ted GOMElAl cei ctat share esse 3 EZEF O 3 2 Installation a 3 2 1 Package CONIC MG dida 3 2 2 Connection to Compatible Receivers ooocooncoccconconnoonnos 4 2 3 Gable REGUIFETIENIS a une A 2 4 Typical Block Diagram for UVA 4 or UVA oocccocccnncoo 4 3 Configuration amp Operation c ccssccecsssseeesesenseneeneeeeeenees 5 3 1 Why Cable COMPENSATION eu iaa 5 3 2 Compensation Adjustment Procedure on URA Receivers 6 3 3 Advanced Brightness Adjustment on URA Recelvers T 3 4 Why Skew Adjustment unseren 8 3 5 Skew Adjustment for URA SKU and URA XT Receivers 9 3 6 Signal Adjustment for the Daisy Chain ocooccoccconconnconcos 9 4 TroUbleshO00 NM nun aa aan eanab ean eae 10 4 1 Contacting Hall Research ccooccconcconoconoccncncncanonas 10 4 2 Shipping and Packaging ooccocccccncocncoccconcconconncoconononos 10 2 3 Problem SOWING FAQ sun 11 9 DOCCIIC AON S iba 12 4 or 8 Channel Splitter PC Video amp Audio over Twisted Pair Receivers 1 Introduction 1 1 General This User Manual applies to model number UVA 4 and UVA 8 series of high resolution PC or HDTV component audio and video syste
7. ible receivers are PARTNUMBER URA 232 URA 232 XT RS232 is Not Functional Table 2 Compatible Receivers a Connect the UTP cable from each compatible URA receiver to the UTP OUT connectors of the UVA 4 or UVA 8 a Connect the HD15 PC HDTV IN connector on the splitter to the video source For YPbPr video sources use a 3 RCA to HD15 cable Hall Research P N CHD15 RGB a Connect the 3 5mm AUDIO IN connector to the audio source or other sound equipment a Connect the included power supply to the 2 5mm center positive 6 VDC power input connector on the unit QO Never use any other supply as this may damage the device 2 3 Cable Requirements All units can use CAT5 5e 6 or Zero Skew UTP or STP unshielded or shielded twisted pair cables 2 4 Typical Block Diagram paint UVA or Ka 8 By Figure 2 UVA 4 8 UVA 8 Application Diagram 4 or 8 Channel Splitter PC Video amp Audio over Twisted Pair Receivers 3 Configuration amp Operation 3 1 Why Cable Compensation All cables attenuate reduce the high frequency components of the video signal that is being transmitted The longer the cable the more signal loss If not compensated for this signal loss will result in blurry and smeared images being displayed The image quality depends on the resolution and level of detail in the image The Hall Research URA series of receivers have one of the most precise and complex equalization t
8. ms These devices are four 4 or eight 8 Channel Splitters for PC Video amp audio over Twisted Pair senders In a typical application they are located at the video amp audio source and connected to one or more compatible receiver units Low skew UTP cable such as Hall Research s Zero skew CAT5 cable is recommended for the URA particularly if cable lengths are 200 feet or longer 1 2 Features 4 channel UVA 4 or 8 channel UVA 8 splitter versions Support for local monitor and audio at transmitter Transmits video and audio on a single CATx cable Supports resolutions up to 1920x1440 at any refresh rate Compact amp rugged metal enclosure Eliminates the need for bulky expensive and hard to build multi coaxial cables for High Resolution A V extension Amplifies the signal for clean and crisp transmission Differential signaling eliminates ground loops and noise Rugged Reliable Compact size Drive standard Cat5 cables to 1 000 feet depending on resolution 2 Installation 2 1 Package Contents Your package should contain the following items 1 UVA 4 or UVA 8 1 Universal power supply 6 VDC 1 5A with IEC320 Power Cord 1 6 ft HD15 M M VGA cable 1 1 6 ft 3 5mm MM Audio cable User manual nn A Model UVA 4 and UVA 8 2 2 Connection to Compatible Receivers The UVA 4 and UVA 8 units have single UTP cable connections to any of Hall Research s compatible URA receiver product line Some compat
9. or down until the video no longer looks smeared see figure below While using the UP and DOWN buttons if an upper or lower limit of adjustment is reached the LED s will blink for each continued press of the UP or DOWN button Pressing both the UP 8 DOWN buttons together will reset the high frequency HF compensation back to zero To exit the Adjustment mode at any time press the SEL button until all LED s are OFF the unit also has a built in 1 minute timeout Align Colors Vertically Minimize Bleed Smear inthis Area H F R Gain PA 1 Gain Not Too Enough Perfect Much HF HF L AAA AAA AAA gt pe Figure 4 Effect of adjustment on the smearing c 4 or 8 Channel Splitter PC Video amp Audio over Twisted Pair Receivers 3 3 Advanced Brightness Adjustment on URA Receivers The URA series of devices can equalize the brightness of the video by reducing smearing e Apply power to the receiver Wait until all LED s are turned off e Press the SEL button once to enter Adjustment mode e In Adjustment mode all three 3 LEDs will be ON solid e Press and hold the SEL button for at least 3 seconds to enable the Video Brightness Adjustment Mode previously called Wire Gauge Mode e In Video Brightness Adjustment Mode the GREEN and BLUE LED s will be blinking e The UP button raises the video brightness level e The DOWN button lowers the video brightness level e Pressing BOTH the UP and DOWN buttons
10. ose devices as well Figure 7 Daisy Chain adjustment Remote Display o MA Model UVA 4 and UVA 8 4 Troubleshooting There are no field serviceable parts or circuits in the device Opening the unit will void the warranty If you think the device is malfunctioning or you have no picture output please try to use the methods described in Section 4 3 below to obtain a picture first 4 1 Contacting Hall Research If you determine that the UVA 4 or UVA 8 is malfunctioning do not attempt to repair the unit instead contact Hall Research Technical Support at 714 641 6607 Before you do make a record of the history of the problem We will be able to provide more efficient and accurate assistance if you have a complete description 4 2 Shipping and Packaging If you need to transport or ship your unit e Package it carefully We recommend that you use the original container e Before you ship the units back to Hall Research for repair or return contact us to get a Return Authorization RMA number 4 or 8 Channel Splitter PC Video amp Audio over Twisted Pair Receivers 4 3 Problem Solving FAQ 1 Fuzzy blurry or ghosting image at remote location If you have a stable image but it looks somewhat blurry edges are not sharp make sure that you have adjusted the receiver unit s HF compensation correctly In addition check the recommended table of max distance vs resolution to see that you have not exceeded the ma
11. r shifts to the right This is viewed on the monitor as separation or lack of convergence in colors For example a vertical white line on the screen may look to have a red tinge on the left edge and blue tinge on the right edge This effect gets worse at high resolutions high refresh rates long cables in excess of 200 feet and depends on the cable construction itself If you are using special UTP cables that are specifically designed for video transmission such as Hall Research Zero Skew then there should be no shift in color alignment regardless of the cable length However in many applications standard and common CAT5 5e 6 cables can be utilized this will necessitate a receiver that can also move each color component to the left and right in order to realign them Hall Research Technolog _ Hall Research Technolog ze Meco to I Be Welcome tot Audio den i Audio Video ONT CONTACT Hall Research O TACT Hall Research 336435 eQuipment is 359 6439 equipment Is a ern b de Daran A 300 ft of CAT6 1280x1024 source a actual zoomed photo of screen After skew adjustment 3 dJ Figure 6 Example of Skew manifested 4 or 8 Channel Splitter PC Video amp Audio over Twisted Pair Receivers 3 5 Skew Adjustment for URA SKU and URA XT Receivers URA SKU and URA XT receivers have the ability to adjust for cable skew in the individual colors e Apply power to the receiver Wait until all LED s are turned off e Press the SEL
12. the volume to the desired level A low volume signal output from the PC reduces the signal to noise S N ratio whereas too high output amplitude can cause saturation and clipping to occur Model UVA 4 and UVA 8 5 Specifications Video Gain Number signal type Connectors Nominal amplitude Impedance Maximum resolution Sync Polarity Audio Gain Connectors Frequency response Connector Type THD Noise General Unity 1 analog signal input Standard VGA output RGBHV RGBS RGsB RsGsBs component video bi tri level sync 4 or 8 female RJ 45 output 1 HD15 video input 1 HD15 local video output 1 V p p for Y of component video 0 7 V p p for RGB and for Pr and Pb of component video 4 0 V to 5 0 V p p for TTL Sync signals of RGBHV RGBS 75 ohms Up to 1920x1200 and 1080p dependent on cable length Positive or negative Unbalanced output 0 dB 1 3 5mm Audio Input 1 3 5mm local Audio Output 20 Hz to 20 kHz 1 dB 1 3 5 mm connector Monaural Simulated Stereo 0 2 1 kHz 0 3 20 kHz at nominal level Recommended cable Varies by model Model URA greater than 200 ft should use Hall Research s Power Supply Zero skew CATS5 cable 100 VAC to 240 VAC 50 60 Hz external 6 VDC regulated Temperature humidity Storage 40 to 158 F 40 to 70 C 10 to 90 non condensing Enclosure type Dimensions Product weight Shipping weight Vibration Safety EMI EMC MTBF Warranty
13. ximum recommended cable lengths If you still have a fuzzy image try reducing the refresh rate and or resolution of the video source Image exhibits steady or rolling horizontal color hum bars This is usually an indication of improper grounding at the sending end the receiving end or both Verify that the AC line is properly wired and that a protective ground green wire is established with NO potential difference between both the sender and receiver locations The UTP splitter can handle up to 5 volts peak to peak of ground noise between the two locations but ground potential differences more than this can show up on video Shaking image or periodically blanking monitor Inherently balanced signal transmission over twisted pair offers good immunity to EMI coupled noise from other external sources However a strong electromagnetic noise field can cause instability in the signal Usual sources are high power AC lines or data and or control cables that run adjacent to and parallel with a substantial length of the CAT5 cable To eliminate this either place a distance between the CAT5 cables from the sender and the interfering source or use shielded twisted pair STP CATS cables Poor audio quality at the receiving end Only use powered speakers with the splitter and receivers It is also good practice to set the audio level volume output of the PC about 1 2 to 2 3 from the maximum and use the volume knob of the speakers to adjust
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