Scanner Orchestra

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Abstract

The Radio Scanner Orchestra is a multichannel sound performance using various radio scanners and transceivers as instruments. Several scanning techniques are combined to create a multidimensional exploration of the local radio frequency spectrum. The technical limitations of each device and the difference of width of the scanned band determines a score.

Tech

The performance is based on a radio scanner that scans the band continuously. The scanner is audible during all the time of the performance. reception through HAckRF. The scanner begins on the highest frequency (defined as 3.14 GHz) and scans the band in a linear progression down to its bottom down frequency (1hz). The scanner makes a stop for a determined duration with the musicians/performers, when entering the range of the musician equipment, musicians are then audible within the scanner due to their emission instruments.

#1 Graz Setup/score

Scanner is broadcast on 4 speakers in the midle, reception through hackRF. Performers plays on a quadriphonic PA system set in the corners.

  • 3.141.592.653 Hz : scanner start
  • 2.400.000.000 Hz : wifi scanning -> b01 -> brute force attacked router through wifi / scanners, detektor, limen, tcpdump
  • 1.727.934.850 Hz : gsm band, telephone scan -> individu -> emission : phones / reception : rtl.sdr
  • 0.666.000.000 hz : EVP frequency -> Carl Y. -> rtl/sdr
  • 0.470.000.000 Hz : walkie talkie freq. -> Jayf -> emission : baofeng / reception : baofeng
  • 0.404.000.000 Hz > 0.401.000.000 Hz : data transmission (minimodem) -> b01 / jack -> emission : pbox / reception : rtl.sr
  • 0.136.300.000 Hz > 0.136.035.000 Hz  : walkie talkie freq -> eeek -> emission : baofeng / reception : baofeng
  • 0.111.000.000 Hz : VHF -> y -> emission : radial / reception : rtl.sdr
  • 0.108.000.000 Hz > 0.088.000.000 Hz : FM radio band -> k -> emission 2x7w FM emitters / reception : 2 radios
  • 0.091.200.000 Hz : FM radio overlap -> m -> emission : pbox / recep : radios
  • 0.010.144.220 Hz > 0.010.000.000 Hz : eeek -> reception : websdr
  • 0.001.602.000 Hz > 0.000.153.000 Hz : evzone -> reception : AM tuned radios
  • 0.000.000.052 Hz : earring range, building resonance freq -> nixhol -> emission : sound / recep : building
  • 0.000.000.001 Hz : end

#2 Toulouse (THSF May 20 2016) Setup/score

Scanner is broadcast on 2 speakers + a screen between, reception through hackRF.

  • 3.141.592.653 Hz : scanner start
  • 2.432.000.000 Hz : wifi scanning : b01 -> brute force attacked router through wifi / scanners, detektor, limen, tcpdump
  • 0.479.970.000 Hz : walkie talkie freq. : Jayf -> emission : baofeng / reception : baofeng
  • 0.108.000.000 Hz > 0.088.000.000 Hz : FM radio scan delight
  • 0.010.000.000 Hz > 0.001.500.000 Hz: AM inter-modulation : evzone -> nano emission : 2 x AM digital radio ; reception : AM analog radio + multiband filter
  • 0.001.000.000 Hz : 3 radio theremin : chimp -> reception : 1 radio
  • 0.000.999.000 Hz : collective improvisation : bO1, jayf, evzone, chimp, jack
  • 0.000.000.001 Hz : end