radiofrequencies | code | exploration | sound | electronics | instrument | performance | stream

Post-human radio

By: Marinos Koutsomichalis
A multi-faceted project pivoting on an unconditional exploration of radiofrequencies and inspired by ham radio and DIY radio.
radiofrequencies | code | exploration | sound | electronics | instrument | performance | stream

Post-human radio

A multi-faceted project pivoting on an unconditional exploration of radiofrequencies and inspired by ham radio and DIY radio.

By: Marinos Koutsomichalis

Materials:
Bespoke electronics, DIY antennas, code, radio transceivers, induction coils, RF packet sniffers, radiophones, reel-to-reel tape recorders, electrosmog meters, microwave transceivers, motors.

Duration (Performance):
Variable: 00h:20m-45m

Produced by:
Marinos Koutsomichalis

Produced at:
Y’ha-nthlei Studio, Heraklion GR

Produced in:
2023-2024

Documented by:
Marinos Koutsomichalis

Post-human radio is an open-ended laboratory vis á vis radiofrequencies and radio related technologies. Inter alia it involves DIY experimental instruments and probes, DIY antennas, ham radio operation, QRP, RF packet sniffing, direct ELF/VLF sensing, radars, SWLing (shortwave listening), reel-to-reel tape recorders, a morse-code controlled synthesizer, microwave transceivers, SAR imaging, and other. Post-human radio manifests in a number of different fashions; most notably as an audio-based improvised performance piece, but also with a series of bespoke instruments, micro-compositions, a diary of SWLing (shortwave listening) and QSOs (amateur radio contacts), field radio-walks, and other.

Project Video TBA.

rotating inductor

Roto-ctor (that is, rotating inductor) is an experimental instrument comprising a DIY ferrite-core rotating induction coil, a geared motor, a motor driver, bespoke circuity, a foot pedal, and a dedicated power supply. The instrument captures the magnetic component of electromagnetic waves and pre-amplifies it so that it can be reproduced or recorded. It can also transmit unmodulated or modulated signals. Reception and transmission of signals can take place with the coil in a fixed place or while rotating at a speed controlled by a dedicated motor driver. The instrument is typically employed so as to amplify naturally occurring EMF and electrosmog in the ELF, SLF, ULF, and VLF frequency ranges, as well as transmit audio signals locally (that can be received by special DIY loop antennas). Doing so while on rotation introduces all sorts of modulation effects.

Roto-ctor has been a very challenging instrument to make, demanding solutions in rather complex mechanical, electrical, and electronic problems. The following video presents the making of the instrument.

 

Antena mono-chord is another instrument created by the artist in the context of this project. The instrument is a wearable radio receiver that can be played in a ‘monochord’ like fashion and so as to improvise with FM and SW radio receptions.

 

 

I am the antenna catching vibration

The artist has produced several different antennas in the context of this project and for different purposes.

‘Alfred’; a coil dipole resonant at 20 and 17 meters.

‘EMFME’; a handheld 300m long loop antenna.

Switchable L-matching network.

Various loops antennas.

Using buildings’ tubing infrastructure as an experimental RX antenna.

A DIY 9:1 Unun for end-fed antennas.

Part of the artist’s longwire (~40m) end-fed Antenna.

#43 ferrite filters on a LMR200 coaxial

drifting radioscapes

‘Radiowalks’, alone or in the company of others, concern ambulatory explorations of radioscapes out in the field. You can listen to a resulting podcast from such a radiowalk bellow.

Events
  • Other, Mixtape, Movement Radio. Onassis Cultural Center (Athens GR). Online. (2023)