| ARTICLES
High Power Transmission - The Fast Track to Successful Mobile/Handheld DTV
Over the air Broadcasting is a wireless service. Over the years Broadcasters have come to rely more and more on third party providers to deliver their Broadcast content to the home. These providers have been effectively fixed wired services. Recently the Telecoms have initiated the delivery of video to cell phones on a subscription basis via their own wireless broadband networks using Wireless Application Protocols (WAP). These services provide national content but very little local station content and no revenue to the local stations. Many of these WAP enabled services have not yet been well received by consumers due to poor overall quality of service (QOS) and lack of local content.
"Dramatic Power Savings using Depressed Collector IOT Transmitters in Digital and Analog Service" by Andy Whiteside, Vice President, Engineering
This paper presents a review of the features of the new transmitters using the water-cooled, depressed collector IOT. A brief description of the challenges presented by the new technology to the transmitter designer and how these challenges are overcome is included. Operating results from several fully operational analog and digital installations show the benefits already available to those broadcasters
Considerations for the use of the Depressed Collector IOT in digital and analog TV service
There have been a number of articles and papers in the past 12 months extolling the virtues of the new breed of IOT, the multi-stage depressed collector IOT, in digital TV service. The performance and benefits of this hybrid device, a combination of two proven technologies, in digital service are certainly impressive but little, if any, consideration has been given to its use in analog TV service. Such application as has been mentioned has minimized the potential benefits to the U.S. broadcaster. This article will show that the new technology can, in fact, be applied to analog transmission with immediate financial benefits to the broadcaster - especially those broadcasters using old klystron transmitters.
Q&A
with Andy Whiteside
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Why did Acrodyne develop
the Quantum IOT? |
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What makes the Quantum
unique? |
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What are some of the
unique challenges developing transmitters for DTV? |
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How will the Quantum
affect the transmitters engineer's job? |
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