Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old June 15th 04, 10:03 AM
Edwin van der Heide
 
Posts: n/a
Default looking for design assistence

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)
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT +1. The time now is 03:02 PM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017