| Presentation | 1999/5/21 Development of 500kW Solid-state AM transmitter Masahiko YAMAZOE, Kazuhisa HAYEIWA, Toru MIZOKAMI, Takehiko YAMAGUCHI, Toshiyuki Seki, Hiromi IWAKUNI, Masanobu KISHI, Haruhiko YURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a 500kW MF transmitter which can produce AM waves directly from digitized audio signals by combining the output of RF power module. The transmitter is composed of two 250kW transmitters which are operated in parallel. The 250kW transmitter consists of two 125kW transmitters with 124 switching-type RF power modules and one analog-type RF power module, an exciter/control module, a combiner and a band pass filter each. The transmitter displays exceptionally over-all efficiency of 80 %, SN ratio of 70dB or better, and 0.3 % total harmonic distortion at 80 % modulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Solid-state / AM Transmitter / Hgh power / Digital technique |
| Paper # | R99-4 |
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| Conference Information | |
| Committee | R |
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| Conference Date | 1999/5/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Reliability(R) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of 500kW Solid-state AM transmitter |
| Sub Title (in English) | |
| Keyword(1) | Solid-state |
| Keyword(2) | AM Transmitter |
| Keyword(3) | Hgh power |
| Keyword(4) | Digital technique |
| 1st Author's Name | Masahiko YAMAZOE |
| 1st Author's Affiliation | Japan Broadcasting Corporation() |
| 2nd Author's Name | Kazuhisa HAYEIWA |
| 2nd Author's Affiliation | Japan Broadcasting Corporation |
| 3rd Author's Name | Toru MIZOKAMI |
| 3rd Author's Affiliation | Japan Broadcasting Corporation |
| 4th Author's Name | Takehiko YAMAGUCHI |
| 4th Author's Affiliation | Japan Broadcasting Corporation |
| 5th Author's Name | Toshiyuki Seki |
| 5th Author's Affiliation | Toshiba corporation |
| 6th Author's Name | Hiromi IWAKUNI |
| 6th Author's Affiliation | Toshiba corporation |
| 7th Author's Name | Masanobu KISHI |
| 7th Author's Affiliation | Toshiba corporation |
| 8th Author's Name | Haruhiko YURA |
| 8th Author's Affiliation | Toshiba corporation |
| Date | 1999/5/21 |
| Paper # | R99-4 |
| Volume (vol) | vol.99 |
| Number (no) | 75 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |