Wednesday, July 13, 2011
Church Sound Files: Understanding Wireless System Antennas
Clearing up confusion about antennas and placement, understanding diversity and signal loss, and more
Since the “paddle” or “shark fin” directional antennas (actually called LPDA or Log Periodic Dipole Array) are often seen at major events, it’s easy to conclude that such devices are always better and should be used for your church wireless system.
However, directional antennas aren’t always best for every application. Related to this, there is the misconception that putting the antennas closer to the transmitters is a good thing, even if your receivers are far away and connected with coax cable.
Further, the term “diversity” is often used and misused to describe certain types of receivers.
Let’s get these things out on the table and explained.
First, be aware that if you are connecting antennas to your receivers with coax cable, there will be some signal loss. The amount of loss is related to the operating frequency, with higher frequencies exhibiting greater loss through the cable.
Table 1 shows the different types of cable and the loss per 100 feet at 700 MHz operating frequency. Note for U.S. wireless users - 698 MHz is now the upper limit of the standard UHF frequencies.
Thus, losses for frequencies between 470 – 698 MHz are less than these figures. But the concept still applies.
The last type shown in the list, Belden #9913F7, is a specialized, foam-dielectric cable that is fragile, fairly large in diameter, fairly expensive, and stiff. In other words, there are always trade-offs.
Generally, 50-Ohm cable is typically used, but keep in mind that lower-loss 75-Ohm cable can be a better choice in some applications.
To make up for signal loss, it may be necessary to use an in-line amplifier. Such devices require power, though. In general, the use of RF amplifiers is best reserved for larger systems where very long cable runs are needed.
As mentioned above, it may seem that directional antennas are always good. And in many cases, they are the right choice.
Figure 1 (click to enlarge)
However, be aware that directional antennas have gain in one direction, and thus will pick up any signals coming from that direction, including those that you intend to pick up and those you don’t (such as DTV transmissions, etc.)
Thus placement becomes more critical. A dipole antenna will often do a better job for short range applications where a lot of movement is required on the part of the talent or a wide area needs coverage but not at a great distance.
Figure 1 shows three antenna/cable scenarios and the results for each.
You’ve probably heard about the much-ballyhooed “diversity” wireless systems.
This term simply refers to the fact that for optimum reception, using two (or more) antennas in diverse locations is beneficial.
The reason is that at times, there can be an RF “null” at the receiver, caused by RF phase cancellations due to reflected signals arriving at the antenna out of phase from the direct signal.
These reflections can be caused by metal or concrete surfaces.
In order to counter this, a second antenna in a different place will generally be receiving a slightly different version of the transmitter’s signal, and it is very unlikely that a null will happen on both antennas at the same time.
But the key is that the two antennas are in different positions and this is one reason it is often better to use remote antennas for your receiver rather than just the short whips that came with it.
Figure 2 shows an example of overcoming RF nulls by using a diversity antenna arrangement.
Figure 2 (click to enlarge)
Rules of Thumb
One easy way to evaluate a potential antenna/cable setup is to remember that the goal should be to have unity gain between the antenna and the receiver.
Thus, the proper combination of antennas, cables, and possibly RF amplifiers should be considered before purchasing any one of these components.
Table 2 shows some example systems, including with the use of an RF amplifier in some cases. In terms of diversity antenna placement it is ideal is to have them at least a minimum of one full wavelength apart.
Table 2 (click to enlarge)
For VHF wireless systems, this means a yard or two between antennas. For UHF systems, a couple of feet will usually do.
However, more distance between antennas is even better. Some users put one on either side of the stage, for instance.
Since this information can at times be confusing, I would suggest making use of your equipment manufacturer as a resource. They’re very good in assisting with properly implementing your wireless systems, and most likely they’ll have helped someone else through similar challenges before.
Keep these basics in mind and call your manufacturer when you need help and there’s no reason not to have low-stress, high-performance wireless system operation without hiccups.
Karl Winkler is Director of Business Development for Lectrosonics and has worked in professional audio for more than 15 years.
Friday, July 08, 2011
Powersoft Patents Solar-Powered, Weather-Resistant All-In-One A/V Device
DEVA 1S is a new concept line involving wireless communications
Powersoft has patented new technology that incorporates solar power with bi-directional wireless A/V communications.
The first product showing the potential of the concept, the DEVA 1S, consists of a power/control module and an interface module. The power/control module consists of a solar panel, batteries, processing, WiFi communication, and amplification. The interface module consists of loudspeakers, light, and can include optional devices including camera, microphone and telemetric sensors.
“The DEVA technology has endless possibilities,” explains Thomas Mittelmann, Powersoft Business Development Manager. “Theme parks, sport venues, corporate and public facilities, transport hubs, emergency/rescue services, even shopping centers – they all experience difficulties distributing sound and surveillance over large areas because of the infrastructure it demands. DEVA is a wireless, self-contained, stand-alone concept that provides everything needed. It can be tailored to the exact requirements of an application and can be installed very easily.”
“Powersoft has always prided itself on its extremely efficient amplifier technology,” adds Claudio Lastrucci, Powersoft Managing Director and Head of R&D. “Efficiency was also the key when designing DEVA. Solar power is ‘green’ and freely available, but to keep a product compact, you must reduce the power consumption of everything running off it. The DEVA 1S is a fairly small device and capable of running for long periods of time even in complete darkness.”
“The same is true for the video or surveillance features of the unit. The DEVA unit(s) is configured according to the customer’s specifications, connects via WiFi to standard equipment, and does not cost anything more once installed.”
The DEVA 1S is extremely efficient for long periods of operation and stand-by use. The high-capacity battery, which is charged through the solar panel even in low light conditions, offers approximately 30 days of stand-by power.
The integration of an ultra-efficient Class D amplifier into the unit helps support up to 40 hours of continuous audio playback . An energy-efficient high-powered white LED supplies optical signalling or lighting for video image support for up to 5 hours. All of this is possible without recharging the unit.
Due to its compact dimensions the DEVA 1S can be installed permanently or temporarily. It can be mounted to walls or poles, allowing the power/control panel to be aimed at the sun and the interface module at the audience. Weather resistant molded plastic enclosures are available in custom colors to match specific applications.
WiFi communication is utilized for setup, upload and bi-directional real-time operation as well as real-time feeds for music or announcements. Playback of locally stored audio is supplied via an internal SD memory card. Remote PC software aids in highly customized setup and operation, including grouping of DEVA units in zones where required.
Depending on hardware equipment and software setup, alternative configurations for specific purposes of DEVA 1S are possible ie, for emergency services. Internal ports – Ethernet including PoE, USB – are provided for backup and peripheral devices.
DEVA units have an assortment of add-on options that expand the versatility of the unit including a video camera, microphone, FM tuner, GPS/GSM module and smoke, infrared or photoelectric sensors.
Wednesday, July 06, 2011
Audio-Technica Names Online Marketing Its Sales Rep Firm Of The Year
Online Marketing acknowledged for its consistent success in the areas of sales, marketing and customer service
Audio-Technica has recognized Wadsworth, Ohio-based Online Marketing as its Rep of the Year for the 2011 fiscal year.
Philip Cajka, Audio-Technica U.S. president and CEO, and David Marsh, Audio-Technica territory manager, professional products, presented the award to Online Marketing principal Mark Taylor.
Online Marketing sells Audio-Technica’s complete line of professional audio products to sound contractors and retailers in Ohio and western Pennsylvania.
Audio-Technica held the awards ceremony during this year’s InfoComm show in Orlando, Florida, to honor its dedicated force of manufacturer’s representatives.
The A-T Rep of the Year recipient was congratulated for outstanding sales performance and bestowed with Audio-Technica’s beloved Samurai doll award.
Online Marketing was acknowledged for its consistent success in the areas of sales, marketing and customer service.
Philip Cajka states, “Online Marketing is one of the premier rep firms in the pro A/V industry. They are keenly dedicated to their customers and the brands they represent, which are among the best in the marketplace. We are extremely proud to have them take the top award in the fiscal year of 2011.”
Audio Technica Website
Monday, July 04, 2011
Lectrosonics Releases 64-Bit Compatible Firmware For DM Series Processors & Venue Receivers
Seamless integration with 64- and 32-bit versions of Windows OS
Lectrosonics has announced the availability of new, 64-bit compatible software distribution for the company’s DM Series processors and Venue receivers.
This includes a new USB driver package, which supports both 32-bit and 64-bit versions of Windows Vista and Windows 7, as well as 32-bit Windows XP.
Also included is the LecNet2 Driver Installer program which pre-installs the USB driver package on a PC prior to use. This new tool greatly simplifies driver installation. T
he updated USB drivers bring a new level of robust, stable performance when integrating the aforementioned Lectrosonics hardware with the company’s LecNet2 software suite on Windows PCs.
LecNet2 provides a suite of tools designed to increase one’s setup and control options. The programs communicate with either the USB or the RS-232 compatible interface built into LecNet2 components.
The LecNet2 control panel programs remain unchanged, but the application “Help” USB driver installation topics have been updated to reflect the improved installation procedure.
The LecNet2 programs contained in the new distribution are backward compatible with the old 32-bit driver package, so it can be used to update older Windows XP PCs running outdated LecNet2 software versions. In this case, it is not necessary to re-install the USB drivers.
Gordon Moore, vice president of sales for Lectrosonics, states, “We are very pleased to announce this update. With the new drivers, both our DM processors and our Venue series receivers gain the ability to work seamlessly with the latest Windows software while improving the performance of these systems when used with earlier Windows versions.
“I’m confident contractors, theater, house of worship, and touring sound professionals alike will appreciate the ease of operation this brings to the setup and configuration process.”
The new distribution is available to both North American and European users of Lectrosonics DM and Venue Series products as a CDROM image (.iso) file download.
Once downloaded, the image file is burned to a blank CD-R disk and the software installer can be run as usual.
Instructions for using the new USB driver installer are available on the Lectrosonics website here.
URL North America: http://www.lectrosonics.com/lecnet2/lecnet2-22Jun11.iso
URL Europe: http://www.lectrosonics.com/lecnet2/lecnet2-e01-22Jun11.iso
Thursday, June 30, 2011
Creston Debuts New Docking Station For Original Apple iPad Or iPad2
The new charging docks turn the Apple mobile tablets into tabletop or wall mount Crestron touch screens for simple finger touch control of the home, classroom and building
Crestron today began shipping a stylish new line of docking stations for both the original iPad and the new, thinner iPad 2.
The new charging docks turn the wildly popular Apple mobile tablets into tabletop or wall mount Crestron touch screens for simple finger touch control of the home, classroom and building.
IDOC-PAD and IDOC-PAD2 enables any iPad or iPad 2 to be stationed and used while charging in a sleek, minimalist in-wall design, or in a slim ergonomic tabletop model.
Available in a gloss white or black finish, both models provide a clean, contemporary appearance for mounted use of iPad and iPad 2 in any environment. Simply press the slim frame on the wall mount model and the dock extends, inviting you to slide the amazing tablet in or out.
The curvy and lightweight tabletop model is designed for quick docking – and then swiping it off again – so you can move freely from room to room or across the office, keeping you as mobile as your iPad. There are no clumsy latches or annoying locks to slow you down.
“Whether you own the original iPad or the new iPad 2, there’s a Crestron mobile control solution to accommodate you,” said Crestron VP of Technology, Fred Bargetzi. “We’re committed to keeping our customers on the edge of cutting edge by offering the solutions that bring the latest, most popular technology into their lives. Our new IDOCs for iPad and iPad 2 are just the latest examples of our commitment.”
IDOC-PAD docking stations for iPad and iPad 2 are the latest additions to Crestron’s complete line of mobile solutions for Apple mobile devices. The best-selling Crestron Mobile Pro G app turns any iPad into a powerful Crestron or Prodigy touch screen, enabling reliable whole home and building control from anywhere in the world.
From any iPad or iPad 2, users can control lighting, thermostats, and audio settings and view streaming video in one or multiple locations such as a primary residence, vacation home, office, or across a campus.
The intuitive graphical interface also provides convenient real-time feedback so users can adjust settings as they deem necessary, no matter where you are. Room temperatures, shade positions and lighting levels, plus audio volumes and metadata including album, song and artist, are displayed right on the iPad screen.
Describing how Crestron consistently stays ahead of the curve when it comes to the latest new control technologies, Crestron Executive Vice President, Randy Klein said. “We deliver the products you want when you want them. We make it easy.”
Crestron Mobile solutions
Posted by Pro Sound Web on 06/30 at 11:45 AM
Wednesday, June 29, 2011
Amped Wireless Introduces The AP300 High Power Wireless-300N Smart Access Point
Plug And Play, High Power, WIFI Access Point With 4 Wired Wired Ports
Amped Wireless specializes in providing high power, long range wireless (Wi-Fi and Cellular) consumer and business communication products for the home and office.
The Amped Wireless High Power Wireless-300N Smart Access Point is the first product of its kind to offer long range, high power, high speed Wi-Fi access, true plug and play installation and four (4) wired ports (PoE Ready) in a single networking solution.
The AP300 attaches to any available network port on a home or office router or network switch and adds long range wireless and high speed wired access (through the four additional wired ports on the back of the Smart Access Point) to the existing network.
The AP300 is truly plug and play with no setup required. Advanced software allows the AP300 to automatically configure itself to a network’s settings without the user’s input or configuration. The AP300 simply connects to the router’s network port, automatically configures itself and creates a new wireless and wired network for connecting wired or wireless computers, printers and other network devices.
The four wired ports on the back of the AP300 provide additional wired ports for connecting network printers, computers and other wired networking devices to an existing network. Support for Power over Ethernet (PoE) allows for installation of the Smart Access Point in a location without easy access to power outlets. Multiple Smart Access Points may be daisy chained, via PoE cables, to create a network of Smart Access Points to provide wireless coverage for large areas or buildings.
As with all Amped Wireless products, the High Power Wireless-300N Smart Access Point uses advanced Wi-Fi amplifiers to boost wireless coverage up to 5,000 sq. ft. The boosted performance is then optimally tuned and paired with high gain Wi-Fi antennas for maximum range output. Typical Wi-Fi devices do not utilize wireless amplifiers and are equipped with antennas that have zero antenna gain.
The High Power Wi-Fi Smart Access Point use “Smart” features to help manage and secure the network:
- Wireless Access Scheduling: Control when your Wi-Fi is on or off
- Wireless Coverage Control: Adjust the Wi-Fi coverage of your extended wireless network
- User Access Control: Restrict network access to specific users
- Supports Advanced Wi-Fi Security: Secure your network with the latest Wi-Fi security standards
The AP300 will have a MSRP of $99.99 and an estimated street price of $89.99. The AP300 is available from select walk-in retailers, online retailers or direct from the Amped Wireless Online Store now.
Posted by Pro Sound Web on 06/29 at 02:15 PM
Tuesday, June 28, 2011
Lectrosonics Introduces HH Digital Hybrid Wireless Handheld Transmitter
Accepts standard thread-on capsules from a number of manufacturers, with 44 dB of input gain range make it well suited to a variety capsule sensitivities and source volume differences
Lectrosonics has introduced the HH Handheld Transmitter, the company’s newest addition to its line of acclaimed Digital Hybrid Wireless microphone systems offering compandor-free audio.
The new HH transmitter accepts standard thread-on capsules from a number of manufacturers. This gives users the freedom to select the microphone capsule that is best suited for their particular application.
It offers 44 dB of input gain range, making this transmitter ideal for a variety of capsule sensitivities and source volume differences.
Further, two capsules are available from Lectrosonics: the HHC cardioid condenser and the HHS supercardioid condenser.
The new Lectrosonics HH transmitter is equipped with a membrane switch control panel/high-resolution LCD display. Designed to facilitate intuitive operation and setup, this menu-driven system offers numerous essential operating parameters, including operating frequency, audio modulation level, battery status, and additional information.
A talkback feature enables communication between the performer and, for example, the front of house mix engineer. A firmware update adding talkback mode for the Lectrosonics Venue receiver system will be announced shortly.
The HH transmitter is powered by 2 AA batteries and offers selectable RF power at 50 or 100 mW. The transmitter will be available in all Lectrosonics standard frequency blocks for both US and export markets.
Karl Winkler, director of business development at Lectrosonics, notes, “Our customers have asked for a number of features in this new handheld. To make the product rider-friendly, the HH accepts standard thread-on capsules. For longer run time, it uses AA batteries and, for ease of use, it has an intuitive interface with membrane buttons and an LCD display. Finally, it’s a really compact package that fits in the hand nicely. Advanced features like the talkback function are icing on the cake.”
Lectrosonics’ new HH handheld transmitter is expected to carry MSRP pricing of $1,500 (without capsule). The Lectrosonics HHC cardioid condenser capsule will carry MSRP pricing of $540 while the HHS supercardioid condenser capsule will be $658. Product delivery is slated for Q3, 2011.
Monday, June 27, 2011
Listen Technologies Introduces New ADA Assistive Listening Systems
Listen Technologies introduces four new assistive listening system to meed the needs of the new ADA standards
Listen Technologies Corporation today announced the availability of four new assistive listening systems to meet the requirements of the 2010 Americans with Disabilities Act (ADA) standards for accessible design.
Compliant with today’s Department of Justice Title III of the ADA for assistive listening systems, each of the Listen ADA systems provide all the necessary components to meet the new standards for the minimum number of receivers/ALDs required based on the capacity seating of assembly areas.
And, they also meet the standards for the number of receivers/ALDs that are required to be hearing aid compatible.
“We are pleased to introduce these simple systems to make it easy for our customers to equip their facilities with an assistive listening solution that meets their particular needs,” said Cory Schaeffer, VP of Sales Worldwide for Listen Technologies. “These systems offer a solution for all budgets, and are backed by our limited lifetime warranty.”
“What gets us excited is that while these systems will help organizations be compliant, they offer them a solution to enrich the personal listening experience of their customers.”
Listen offers three FM ADA systems and one Infrared ADA system. All systems meet the minimum requirements of the 2010 ADA standards for accessible design.
All systems can be installed for use in assembly areas where audible communication is integral to the use of the space. Ideal for classrooms, public meeting rooms, public hearing rooms, legislative chambers, motion picture houses, auditoria, theaters, playhouses, dinner theaters, concert halls, centers for the performing arts, amphitheaters, arenas, stadiums, grandstands, or convention centers, and more.
The Infrared system delivers a secure, interference-free audio signal.
Systems are available for a free 30-day no obligation demonstration. All four systems are available for shipment immediately. Systems are backed by a Limited Lifetime Warranty.
Listen Technologies Corporation
Friday, June 24, 2011
Sennheiser’s RF Wireless Sound Academy Seminar Journeys To Three Major US Cities
Unique single-day workshop led by top industry experts covers creating trouble-free RF wireless operation in even the toughest environments
Sennheiser has announced that it will be offering its popular RF Wireless Sound Academy Seminar in three major US cities: Tuesday, June 28, 2011, in Richmond, Virginia; Thursday, July 21, 2011, in New York, New York; and Thursday, September 15, 2011, in New Orleans, Louisiana.
This single-day workshop is designed to teach attendees how to plan for trouble-free operation of multi-channel wireless microphones and wireless personal monitoring systems in even the toughest environments. Alongside its popular presenters, Joe Ciaudelli and David Missall, the event in New York will feature special guest Volker Schmit.
Schmit is the RF engineer who spearheaded the creation of Sennheiser’s most successful and innovative products, including the popular evolution wired, evolution wireless, MKH, MKE, and 3000 and 5000 series.
The RF Wireless Sound Academy event will allow attendees to learn or enhance their skills through classroom and hands-on instruction on the following key elements: transmitter and receiver technology, antennas and distribution systems, wireless monitoring systems, system planning, frequency coordination and how digital television and new FCC policies may affect wireless microphone users.
Ciaudelli and Missall are industry veterans in RF wireless operations. Ciaudelli began his career 20 years ago as a Sennheiser applications engineer, and has provided frequency coordination for large multi-channel wireless microphone systems used by Broadway productions, major theme parks and broadcast networks, including the frequency plan used for NFL football games.
Missall is a National Market Development manager for Sennheiser Electronic Corporation and has provided RF wireless solutions and trouble shooting support for several broadcast networks and organizations including CNN, ESPN, Univision Network, Fox Sports, CBS, Speed Channel and NASCAR.
Registration costs $149 and includes, lunch, workshop materials and a $50 coupon toward any Sennheiser product.
For more information and to sign up, visit the Sennheiser RF Wireless Sound Academy registration page.
Award-Winning Group Newsboys Officially Endorse Audio-Technica Microphones
Newsboys have embraced Audio-Technica as their microphone and wireless systems provider of choice
With numerous GRAMMY, Dove and Billboard awards and nominations, Newsboys have proven to be some of Christian rock’s most enduring performers. Since the band’s founding in Australia in 1985, Newsboys have released 14 studio albums and have been one of the most popular Christian music artists of the past two decades.
Newsboys have now chosen to partner with microphones and wireless systems from Audio-Technica, a leading innovator in transducer technology.
Newsboys FOH mixer John O’Neal says the pairing of the band and A-T microphones is a perfect connection. “We are pretty particular about sound, right down to the microphones in our workbox,” says FOH mixer John O’Neal, who has mixed Newsboys for nine years. “[Monitor engineer] Jeff Nolte and I began discussing our desire for some new microphones.”
“Primarily, we wanted to go in a different direction with our drum kit—we had been using the same cardioid dynamic instrument mics on our toms and snare drum for the last six or seven years. The old mics weren’t broken, so it wasn’t like we had to make a change. We simply wanted better.”
That’s what they got with Audio-Technica microphones, and it transformed the sound of their drum kit. “Not only did we end up with a different approach on our toms, but also the snare drum and all of the cymbals as well,” says O’Neal.
O’Neal and Nolte sought the big, open sound of a large diaphragm mic on the toms and found it with the AT4040 Cardioid Condenser Microphone. “The AT4040 has become our choice on the three floor toms, says O’Neal. Its large diaphragm and extremely flat response have really enabled us to capture the real sound of the larger drums in our kit. We ended up with the AE3000 Cardioid Condenser Instrument Microphone on the 12-inch rack tom, and it does a fabulous job on the smallest drum we have.”
Then came the rest of the kit. “We’re using a pair of ATM650 Hypercardioid Dynamic Instrument Microphones for our snare top and bottom, which are much warmer and fuller that what we’d had before,” O’Neal comments. “And we are using the AT4041 Cardioid Condenser Microphone on the hi-hat and the ATM450 Cardioid Condenser Instrument Microphone under the cymbals instead of as overheads. We do that for aesthetics, to keep the profile of the kit nice and low. The A-T mics keep the kit looking as good as it sounds. I have never heard my cymbals so pure in all the years I have been doing this, and the ATM450 side address is so small, that I can get it in under the cymbals, allowing them to virtually disappear.”
Audio-Technica microphones delivered so well on the kit that vocalist Michael Tait is now using the AE5400 Cardioid Condenser Handheld Microphone and its wireless counterpart, the AEW-T5400a handheld transmitter with the 5000 Series UHF Wireless System, for lead vocals. “The AE5400 as our vocal mic choice has been probably as big a paradigm shift in the way the band sounds live as any drum mics we have started using.” says O’Neal. “The instant we heard it, we all knew we had found something very special. Any time you can take the large diaphragm from a legendary studio condenser and put it in a handheld device, you know you are in a good starting point. And the 5400 also works extremely well in front of the P.A., where Michael spends a great deal of time. He’s also been very pleased with his vocal sound in his in-ear monitors ever since he started using the 5400.”
O’Neal continues, “Newsboys has always been about getting the best sounds we can get, and in this day and age, so many sounds that you hear at a concert are exactly the same as the sounds that you hear on the record, due to the advent of digital mixing, plug-ins and cross platform portability with audio files used for playback. We have found that by switching over to the Audio-Technica microphones, we have been able to blur the lines between the live instruments and vocals on stage and the computer/studio-derived sounds that are prevalent in our live show. This has given us a great advantage and head start on our quest for the perfect mix.”
Thursday, June 23, 2011
AKG Debuts Latest DMS700 V2 System, DMS700 Hardware & Software Upgrade At Infocomm 2011
Users with the original DMS 700 wireless system can easily update their units through a software and hardware updat
AKG unveiled the DMS700 V2 digital wireless microphone system at the 2011 InfoComm show in Orlando.
It offers 512-bit encryption, low 3.5 latency and the new DPT700 bodypack, and improves the link quality and increases the working range of the transmitters and receivers.
Users with the original DMS 700 wireless system can easily update their units through a software and hardware update.
The free software update includes the 512-Bit encryption, AES EBU output and 0.5 ms improved latency, improved link quality and range improvements and output gain menu with a bargraph and ability to deactivate autolock.
The hardware upgrade ups the latency analog output by 1 ms, increases the DPT 700 microphone input gain 0, +10 and +20 dB and increases headphone output level 24 dB.
“Harman’s AKG DMS700 V2 is the next step in our pursuit of the perfect, flawless audio signal transmission,” states Wolfgang Fritz, product marketing manager – tour sound, AKG. “V2 offers the audio professional ease of use, quick setup and reliable operation in this demanding industry, even in the most challenging environments.
“We are happy to offer our dedicated artists the DMS700 V2 so their audiences receive nothing but the best, clearest sound.”
DMS700 V2 is available at the following suggested retail prices:
DSR 700 Receiver, $2,549
DPT700 Bodypack Transmitter, $1,449
DHT700/D5 Handheld Transmitter with D5 Capsule, $1,449
DHT700/D7 Handheld Transmitter with D7 Capsule, $1,599
DHT700/C5 Handheld Transmitter with C5 Capsule, $1,649
Wednesday, June 22, 2011
Audio-Technica Announces Upgrades For ATCS-60 IR Conference System
Audio-Technica offers contractors and system integrators a flexible, portable wireless infrared system with easy setup, intuitive operation and unmatched security
Audio’Technica has announcesd upgrades for its ATCS-60 IR (infrared) Conference System from its contractor-exclusive Engineered Sound range of meeting/conference room offerings.
The ATCS-60 is a fully self-contained wireless distributed audio system using infrared communications technology, designed for corporate, government and educational applications. The system offers many impressive and practical features, providing ease of setup and operation, and eliminating the need for microphone wiring and ceiling speakers. New upgrades include a voting module (model ATCS-V60) and updated software (ATCS-C60MAG-REG).
The new ATCS-V60 is a modular voting unit with five-button configuration that offers versatile voting options. In addition to Yes/No and Yes/No/Abstain votes, the unit can be programmed to allow up to five options, useful when multiple candidates are standing for election.
Up to 150 voters can be handled by an ATCS-60 system using ATCS-V60 modules. The ATCS-60MAG-REG software has been newly enhanced. New features include support of the ATCS-V60 voting module, enhanced video and audio recording support, and the implementation of a simultaneous interpretation mode to support a total of four languages.
The ATCS-60 IR Conference System offers all the advantages of infrared communication – including security, high noise immunity and low power requirements, to name a few – and features wireless microphone units (ATCS-M60). As a result, it offers more flexibility, with freedom to easily change microphone locations and system configurations.
Even for a conference scenario of over 100 participants, the setup takes far less time than other conference systems. The system also features sophisticated functions such as simultaneous interpretation for one native language and up to three foreign languages; automatic camera tracking to follow the switching of microphones; optional minutes recording; along with other features that help improve conference efficiency. The ATCS-60 system can also be fully portable.
The ATCS-60’s infrared technology offers secure communication. Since the infrared signal stays within the room, a meeting cannot be picked up or intercepted elsewhere, which can often be an issue with conventional RF systems.
Setup of the ATCS-60 IR Conference System is simple and intuitive: the applicable number of ATCS-A60 IR Transmitter/Receiver Units (aka Transponders) are placed on the room’s ceiling space (or flown/elevated for full portability), and connected back to the master control unit with 75 ohm coaxial cable.
Each ATCS-M60 Microphone Unit, with dedicated ATCS-60MIC microphone, is set on the conference table (one for each participant) and assigned a discrete address; beyond that, it’s virtually plug-and-play. Each ATCS-M60 Microphone Unit features a built-in dedicated loudspeaker, which will return the entire system’s audio (minus that conference member, therefore preventing feedback and echo).
The system operates in two modes, manual and automatic, allowing for a number of different meeting styles and levels of formality.
In manual mode, which works like a “discussion system” (commonly used with a more formal approach to corporate meetings), each meeting member pushes a button to request to speak, and each request is recognized by the meeting’s chairman. In manual mode, the system’s ATCS-C60 Master Control Unit controls whether requests to speak are accepted in first-in-first-out or last-in-first-out order. This mode accepts up to 150 microphone units.
In automatic mode, which accepts up to 50 microphone units, all channels run through a “smart” mixer, which turns each microphone on and off depending on whether or not that meeting member is speaking. The mixer can be set (via the ATCS-C60 Master Control Unit) so that from one to five people can talk simultaneously.
The ATCS-A60 IR Transmitter/Receiver Unit has an oblong 120-degree coverage pattern. The ATCS-D60 Distributor acts as a splitter, expanding the Master Control Unit’s four IR Transmitter/Receiver Unit connections so that up to 16 ATCS-A60 units can be placed on a room’s ceiling space, depending on necessity presented by room size and shape.
The system’s included ATCS-C60MAG-REG software allows users to monitor and control the system using a computer screen with a graphical interface patterned after the room layout. An advanced version of the software can record meetings for electronic minute-taking. The ATCS-M60 Microphone Units can run on battery power (LI240 Lithium ion battery, charged with ATCS-B60 Battery Charger) or via AC power with a standard adapter.
Mark Donovan, Audio-Technica Sales Engineer, states, “The upgrades to the ATCS-60 system in our extensive range of contractor and system integrator products represent Audio-Technica’s total commitment to providing install-sound solutions. The new features of the infrared conference system enhance its functionality, and with A-T’s hard-wired microphones, RF systems and the ultra wideband SpectraPulse wireless microphone system, Audio-Technica continues to offer engineers, sound contractors and installers a complete range of conference system options.”
The ATCS-60 system is currently available. As with all Audio-Technica Engineered Sound products, the system comes standard with a five-year warranty.
Dark Star Lighting & Production Finds Success With Lectrosonics’ Quadra
IEM (in-ear monitor) system provides robust performance for special Easter service
Essex Alliance Church, headquartered in Essex, VT, is one of the largest non-denominational churches in the state of Vermont. Each week, the church typically conducts four services so as to accommodate its congregation of roughly 4,000 worshippers.
As a means of assembling the entire congregation for their special Easter service this year, the church rented the Patrick gymnasium at the University of Vermont in Burlington. In an effort to ensure the best possible sound quality throughout the venue, a variety of special sound reinforcement provisions were placed into service. For several of the performers, this included new Quadra IEM systems from Lectrosonics.
Hinesburg, Vermont-based Dark Star Lighting & Production, a lighting, sound, video, and production company specializing in design and technical services for the entertainment industry, was contracted to provide sound reinforcement for this year’s special Easter service.
Tyler Wainer, Production Manager for the company’s live events division, discussed the decision to deploy Lectrosonics Quadra IEM systems.
“Essex Alliance Church has a contemporary worship style that incorporates a lot of music,” Wainer explained. “In addition to a roughly 75-voice choir, there was a 16-piece band as well as an 8-piece praise team of vocal soloists. The job called for eight discreet monitor mixes that were to be used by a combination of twelve musicians and vocalists.”
“Because the Quadra can accept two stereo or four mono signals, the system is extremely flexible in its ability to facilitate a variety of mixes for each performer. By using two Quadra M4 4-channel transmitters, we were able to assemble an 8-channel system in a single rackspace, which is nothing short of extraordinary.”
“By contrast, if we were to use systems from competing manufacturers, this would have would have required antenna combiners and other components that would have resulted in a considerable amount of additional rackspace.”
“The M4 receiver—the beltpack component that is actually worn by the performer—includes a configurable 4-channel mixer with independent level knobs that enable each performer to mix four discreet audio signals according to one’s preference,” he continued. “This capability makes the system really flexible. Each performer was able to blend various aspects of the signals they received in order to custom create a mix that was right for them. The system offers tremendous customization.”
With its 24-bit digital audio format, the Quadra’s sound quality was exactly what Wainer and his associates were hoping for, but that wasn’t all that impressed him.
“With the flat frequency response of the Quadra, I believe it’s the best IEM system available,” he reports. “I was equally impressed with the build quality of the equipment. The receivers are surprisingly compact, they feature an excellent, informative display that’s easy to read and they have a really solid feel. The metal casings are beautifully machined. The entire system conveys a level of confidence that you simply don’t get when you pick up a plastic unit from a competitor.”
Reflecting on his experience with Lectrosonics’ Quadra IEM system at Essex Alliance Church, Wainer offered the following comments.
“The Quadra system’s performance was exceptional,” he said. “The sound quality is first rate, the gear is intuitive, and Lectrosonics was very supportive. Howard Kauffman, our regional sales rep, made certain everything was working up to our expectations. The system’s battery life is very good and the entire system worked exactly as we had hoped for. Most importantly, the performers were very complimentary of the equipment’s sound quality and its ease of use. We couldn’t have been happier.”
Dark Star Lighting
Wireless Microphone Systems Reinvented With AKG WMS 470
WMS 470’s new automatic frequency setup function immediately finds and displays all available channels, making the system ideal for less experienced users to operate
Setting the stage for the next level in wireless live performance, AKG has debuted its WMS 470 wireless system at Infocomm. Designed for complete ease of use, WMS 470 incorporates a vast number of upgrades from previous AKG lines and delivers outstanding performance and reliable operation to users.
WMS 470’s new automatic frequency setup function immediately finds and displays all available channels, making the system ideal for less experienced users to operate. Before opening a channel, the pilot tone function will prevent unwanted startup noise – the receiver will only open the audio if the pilot tone is detected.
“AKG engineers have worked tirelessly to ensure WMS 470 was the absolute best system for our customers,” said Wolfgang Fritz, product marketing manager – tour sound, AKG. “We completely understand the challenges live sound professionals face in the line of fire and with WMS 470, we help relieve these tensions with the most advanced technology that’s also simple to manage.”
WMS 470 operates up to 16 channels simultaneously within the same frequency band and up to 48 channels by using multiple frequency bands. The transmitters are powered using a single alkaline, lithium or Ni-MH rechargeable battery, providing up to 14 hours of use with lithium batteries. The WMS 470 handheld microphone has a built-in dipole antenna to ensure reliable transmission with 50 mW output power, even if the user covers the antenna with their hand.
“Our 400 Series has become one of the most successful wireless systems on the market and the WMS 470 continues that lineage,” continued Fritz. “With WMS 470, artists and engineers from live music, tour sound, house of worship, educational and corporate environments will have a reliable, yet robust technology at their fingertips.”
The WMS 470 is available in a variety of configurations for live music, instrumental, sports and presentation use including handheld, headworn and lavalier mic options. Packages include the WMS 470 D5 and C5 handheld sets, the WMS 470 Instrumental set, the WMS 470 Sports set and the WMS 470 Presentation set.
The WMS 470 wireless microphone systems are available at a suggested retail price of $449 to $529.
Tuesday, June 21, 2011
Clear-Com Demonstrates Expanded Wireless Portfolio With Tempest900 Digital Intercom System
New system offers increased range and better coverage in challenging environments
Clear-Com, a global leader in critical voice communications systems, exhibited the new Tempest900 900MHz digital wireless intercom system at this year’s InfoComm 2011.
With the addition of Tempest900, Clear-Com is now the only provider in the live performance, permanent installation and broadcast markets to offer such a wide range of Basic, Advanced and Expert level wireless intercom solutions.
The Tempest900 now joins some of the company’s other systems, including the Tempest2400 2.4GHz, CellCom1.92-1.93GHz, HME DX Series 2.4GHz and HME PRO850 UHF band.
The Tempest900 is easy to operate and has a similar menu structure to the Tempest2400 system. However, the longer wavelengths and wider symbol width of the 902 to 928 MHz frequency range allow Tempest900 signals to break through dense walls and eliminate multipath interferences in large enclosed areas. Thus, the Tempest900 is able to improve coverage for users by increasing audio range and preventing audio loss.
The Tempest900 is available in 2- and 4-channel versions and comes fully-loaded with the same set of features, functions and operations as the Tempest2400; including the ability to operate in Normal, Split and Shared Modes.
“We are pleased to have presented the Tempest900 to this year’s InfoComm attendees,” says Stephen Sandford, Product Manager of the Tempest wireless systems. “As industry experts are aware, there is rarely a single solution for all applications or all environments. Tempest900 was created to perform in those applications that may not be appropriate for 2.4GHz or other technologies.”
“In other cases, it can perfectly complement other wireless intercom systems such as the Tempest2400 to address specific communication requirements.”
A single Tempest900 in Normal Mode can support between one and five full duplex wireless users who always need to speak on the intercom system. However, with the use of a BaseStation in Split or Shared Mode, an unlimited number of users can monitor the conversation and share talk capacity.
A total of five Tempest900 BaseStations can be co-located and connected together via their Partyline or 4-wire intercom connections, allowing up to 25 Tempest full duplex wireless BeltStations to operate in close proximity. Since the Tempest900 and Tempest2400 can be used together, a system can expand to 15 BaseStations, using 10 Tempest2400s and five Tempest900s.
Tempest900 is available in the United States and Canada, while Tempest2400 is distributed worldwide.