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Radio Currents Online - Jun 01 - Jun 13, 2004 Jun 1, 2004 10:10 AM Radio technology news updated as it happens. Click here to view the Currents Online archive. Click here to receive the Currents Online Weekly E-mail. News
College Physicist Invents New Antenna Technology
Using conventional components, the four-part antenna design cancels out normal inductive loading, thereby linearizing the energy radiation along its mast and enabling the smaller size. EE Times quotes Vincent as saying, "With my technique, I reduce the inductive loading that is normally required to resonate the antenna by as much as 75 percent…by utilizing the distributed capacitance around the antenna. "A helix antenna is normally known to be a core radiator, because the current profile drops off rapidly; they are just an inductor, and inductance does not like to see changes in current, so it's going to buck that. What I found was that for any smaller antenna, if you place a load coil in the middle you can normalize and make the current through the helix unity; that is, you can maximize it and linearize it." Vincent credits his success with a new way of developing a helix for high frequencies that is a fully planar design, resulting in a two-dimensional helix. "The Holy Grail of antenna technology is to create a small antenna with high efficiency and wide bandwidth," explains Vincent. "According to current theory, you have to give up one of the three - size, efficiency, or bandwidth - to achieve the other two." His work to develop the antenna began by designing an antenna for use at 21MHz. His antenna was 18 inches tall, compared to the traditional design that is 12 to 24 feet tall. He tested this antenna from his home by communicating with stations in Chile and Europe at a transmitter power of 10W. Vincent states that further tests confirmed that he has created antennas at one-third to one-ninth of their full-size counterparts. Normally smaller antennas are only 8 to 15 percent efficient. Vincent's antennas achieved 80 to 100 percent efficiency as compared to the larger antennas. A patent is pending on Vincent's technology. The inventor has made the University of Rhode Island and its Physics Department partners that will benefit from any revenue his invention earns.
FCC Freezes FM Minor Change Apps
Auction No. 37 is scheduled to begin on Nov. 3, 2004. Through competitive bidding procedures, 290 vacant non-reserved band allotments in the FM broadcast service will be offered. FM minor change applications, which can now be filed on a first-come first-served basis, must protect the reference coordinates of each of these allotments. DA 04-1642
FCC Schedules Town Hall Meeting in Portland
In the FCC action from June 2003, the FCC voted 3-2 to relax the media ownership rules. Copps and Adelstein were the two dissenting voices in the vote. Following the decision, FCC Chairman Michael Powell called for a series of six localism hearings to discuss how local broadcasters were serving their communities. Three meetings have already been held: Charlotte, NC; San Antonio, TX; and Rapid City, SD. Future meetings are slated for Albuquerque, NM, Detroit and Miami.
McCain and Leahy Introduce LPFM Bill
In a published statement, McCain said that the bill will allow the FCC to "license low-power FM stations on third-adjacent channels to full power stations without limitations, eliminating the requirement that the FCC perform further testing on the economic impact of low-power FM radio. Additionally, the bill seeks to protect stations that provide radio reading services, which some have suggested are more susceptible to interference than other stations because they are carried on a subcarrier frequency." McCain's statement continued with claims that the bill will "right a serious wrong" that was created when Congress delayed the full implementation of LPFM because of "broadcasters' grossly exaggerated claims of interference." McCain claims that "Broadcasters masqueraded their true concerns about competition from a real local radio broadcaster in thinly veiled claims of interference." McCain cited the recent MITRE report that found the interference claims to be untrue. The MITRE has been heavily debated since its release. Opponents of the report state that it stopped short of its intended goal and proves nothing. The report cost the FCC more than $2 million. FCC Chairman Michael Powell has expressed support for an expanded LPFM service. If the bill passes, it is possible the thousands of new LPFM stations could be licensed.
Read McCain's statement at this link: www.prometheusradio.org/mccain_floor_statement_lpfm.doc.
WAMU Dedicates Digital Radio Broadcast Signal
Under a six-month experimental authorization from the FCC, WAMU will evaluate the performance of its digital channels at several data rates. This test program is supported by National Public Radio (NPR), Kenwood and Harris. "A supplementary channel would allow WAMU to air more of the quality public radio programming now available," said Programming Director Mark McDonald. "It will also give us the capacity to experiment with new, innovative programming before introducing it to our main channel."
Libin Appointed Frequency Coordinator for 2004 Political Conventions
The designation will allow for advance coordination of auxiliary broadcast frequency usage in the designated area, defined as a circle drawn around the Boston Fleet Center and around New York City's Madison Square Garden with a 100km radius for terrestrial stations and a 150km radius for any mobile operations aboard aircraft. All Part 74, 78 and 101 licensees sharing spectrum available under Part 74 of the Commission’s rules and operating in the designated areas are covered by this action. All short-term auxiliary broadcast use under Part 74, without exception, shall be coordinated in advance through the POLCOMM2004 coordinator, Louis Libin. The frequency coordination forms are available through POLCOMM2004's website at www.polcomm2004.org. POLCOMM2004 has also requested that the Commission grant a waiver of the mileage separation requirement (Section 74.802 of the rules) to permit the use of low-power auxiliary stations, not to exceed 2W of power, on channels allocated for TV broadcasting where the nearest operating station is located at least 40km from the Fleet Center and Madison Square Garden venues. According to POLCOMM2004, these low-power stations will be operated only inside the venues and the majority of the facilities will not exceed 200mW. The FCC granted the request, which takes effect from May 26, 2004, until Aug. 1, 2004, in Boston and until Sept. 4, 2004, in New York City. Business
Clear Channel Settles Indecency Claims
"It was a tough negotiation, but a fair resolution," said Andrew Levin, executive vice president and chief legal officer. "We didn't agree that all the complaints were legally indecent, but some clearly crossed the line and for those we have taken full responsibility. No broadcaster has taken stronger steps to ensure its broadcasts comply with the law and we intend to keep it that way." In February, Clear Channel announced a Responsible Broadcasting Initiative that includes policies and procedures to ensure broadcasts do not violate indecency laws. Training for all radio programming personnel and on-air talent is underway. Levin reiterated the company's call for the government to establish standards that would apply fairly and evenly across all media platforms. He stated that cable and satellite networks should be treated no differently from broadcasters.
Musicpoint Online Service Launches in UK
BMG, EMI, Universal, Warner Music and independent labels have already used Musicpoint in Australia to promote nearly 1,500 songs, with total deliveries now approaching 50,000. As the service is launched in the UK, these labels are adding music and data. Stations can hear songs, transfer them directly to their playout system and get new music on the air immediately. Musicpoint integrates with RCS' Selector music scheduling software. The Musicpoint website can be entered from within the Selector program. Likewise, each song on the Musicpoint site displays an "add to Selector" icon that creates a new Selector song card and automatically populates it with title, artist, CD name, runtime and other coding data. RCS is one of the partners in the Musicpoint venture.
People
Dixon joins Pristine Systems
Dielectric Changes Two Leadership Positions
Dan Ozley has accepted the position of vice president, international business development. Prior to joining Dielectric in 2000, Ozley worked in domestic and international sales with Lockheed Martin, Scientific-Atlanta and Harris. He earned his B.S. degree in management from Auburn University, AL, and his M.S. degree in industrial management from the University of North Dakota.
TC Electronic Promotes in North American Organization
Maier previously held the title of vice president of sales, North America, and has managed the day-to-day operations since he joined the company late in 2002. Before joining TC, Maier held leadership positions throughout the pro audio industry, most notably as director of marketing and national sales manager at Alesis and pro audio buyer at Guitar Center Management. Before that he worked as an independent sales representative and pro audio reseller. Ed Simeone founded the U.S. distribution company that TC Electronic later purchased and dubbed TC Electronic, Inc. As chairman, Simeone will continue to be heavily involved in setting the overall direction and strategy for the North American organization. He will also play a major role in promoting and selling high-end products in the U.S. market and will continue to specify new products with the product management and research and development departments in Denmark.
TC Group Appoints New Managing Director
Bertrand commented that Tannoy has faced some challenges in recent months, but has created a stronger focus on its customer base. Bertrand can be reached at mbertrand@tannoyna.com or 519-745-1158 x236.
Chapman joins Dielectric Communications
Chapman brings to Dielectric more than 20 years experience in a technical communications manufacturing environment. He comes to Dielectric from Net Test’s Optical Group in Beaverton, OR, where he served as president. Previously, he served as president for Spectran Communication Fiber Technologies. He holds a BS in physics from the University of Lowell and an MS in electrical engineering from Northeastern University.
Bench, Lopez Named SBE Fellows
To be elected an SBE Fellow, nominees must have rendered conspicuous service, made valuable contributions to the advancement of broadcast engineering or its allied professions, or have distinguished themselves by disseminating their knowledge of broadcast engineering and by promoting its application in practice. Edward Bench is retired and a life member of the SBE and holds life SBE certification at the Certified Professional Broadcast Engineer level. His career in broadcast engineering started as an aircraft radio operator in the Army Air Corps in 1942. Bench was nominated for Fellow by members of Chapter 55 in St. Louis. Vincent Lopez began his broadcasting career in 1983 in freelance production at New Channels cable in Syracuse, NY. He currently serves as a systems technician with WSYT/WNYS-TV in Syracuse. Lopez holds the SBE Certified Video Engineer (CEV) and Certified Broadcast Networking Technologist (CBNT) certifications. He was nominated for Fellow by members of Chapter 22 in Central New York.
Products
Digigram Releases Short-length PCI Cards
The PCX924v2 is a full-duplex stereo sound card for simultaneous and independent record and playback. A playback-only card, the PCX22v2 offers two analog or digital outputs only. The VX222v2 includes two balanced analog inputs and two balanced analog outputs with 24-bit converters.
Audemat-Aztec and Burk Technology Partner on RBDS Encoder
Audemat-Aztec's FMB80 RDS encoder is fully compliant with the Cenelec EN50067 and the RBDS standards. It is capable of scrolling song titles and artist information on any kind of RBDS receiver using the new scrolling PS feature. Communication with the automation software and configuration are possible via serial and TCP/IP ports. The FMB80 has an embedded Web server and supports HTTP, Telnet, UDP and TCP protocols. Firmware upgrades can be flashed remotely using the FTP.
Sage Endec Firmware Update Now Available
This Endec firmware revision requires versions 1.7 or greater of the Endec Pro and Endec DJ software packages, and 2.0 of the Endecset program. The new firmware is not compatible with the Eprog program, which has been replaced with Endecset. Harris warns that using old versions of Eprog to edit settings files with version 6.1 or greater will corrupt the filters. The new firmware includes the new event codes, subdivision names and marine location FIPS codes. Additional updates include a random weekly test feature, access to the Endec via a telephone modem and an updated configuration options to restrict menu access. Additional information is available from Harris at www.broadcast.harris.com/radio/sage.
Adobe Releases Audition 1.5
New features of the software include integrated CD burning, pitch correction, automatic click/pop elimination and the ability to save custom keyboard shortcuts. In addition, new sample sessions are included to assist users in getting started with the program. A vocal/instrumental extracter creates a cappella and karaoke-ready. Royalty-free loops allow the creation of custom audio tracks. Other updates include: Rewire support, VST plug-in support, frequency space editing, enhanced support for video, clip time stretching and flexible envelope scaling. Click here to receive the Radio magazine Currents Online Weekly E-mail. |
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