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I'm looking for somebody who wants to collaborate on the design issues
related to my new version of Radioscape that will take place in August. I want to improve the electronic design of the transmitters and the receivers. Also I want to experiment with different forms of antenna's. In the year 2000 I realised my first version of Radioscape for Festival aan de Werf in Utrecht, Holland. I distributed 12 transmitters over the city center of Utrecht. Each of the transmitters was broadcasting a different layer of the electronic composition that I made for Radioscape. The transmitters were broadcasting DSBSC, all on the same frequency. The audience could explore the city by walking through the city with a singel signal DC phasing receiver (without AGC!). By walking through the city you mix your own combination of the differently transmitted signals. there is some documentation on http://www.evdh.net/radioscape.html For the new version of Radioscape I'm using the orchestra as metaphor for the city. I have made a meta composition for different groups of acoustic instruments. The signal of each transmitter will be corresponding with one of the groups. While your walking through the city you can also say that you're walking through the orchestra. I'm looking for somebody who wants to advise/collaborate with me on the changes and improvements of the design. The following issues are important to me to improve: - The receiver was based on two NE602's and a sense antenna. I'm thinking about exchanging the NE602's for a Tayloe detector (QRP2001) or a R1/R2 based receiver and exchanging the sense antenna for a ferrite rot antenna. - I've been using horizontal wire based transmitter antenna's (+/- 6 meter) with a loading coil and a (kind of) vertical(!) ground plane. I want to experiment with (multiturn) magnetic loop antenna's with a maximum diameter of 1 meter. - I've been using the AMP1 (hands kit's) as transmitters because the antenna's were so inefficient. I'm looking for a good transmitter to fit the outcome of the experiments. I guess much less transmitter power is needed. - The frequency I'll be using is 1,725 mHz with a bandwidth of +/-15kHz. - In case the collaboration goes beyond the role of just advising there is some money available for compensation. I'm looking forward for reactions! kind regards, Edwin van der Heide Rotterdam, Holland (I'm not necessarily looking for somebody in Holland) |
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