Composition No. 3: August 2023

Counter Rotating Beam Experiment
Mode: AM
Direction: Split array:  two 6x12 arrays rotating 6 times per minute at 15 degrees off zenith.
Reception: expect to receive side lobes only
Two beams sweep in opposite circles like searchlights looking for each other. Shortwave listeners to receive partial transmissions as the beams sweep past their location.A short radio drama for Ionospheric Research Instruments.

Composition by: Amanda Dawn Christie

Luxembourg Experiment
Mode: AM
             SSTV (at the end): Scottie S1
Directions: 30 degrees off zenith
                      array a: toward Kaluga: 53.33, 36.17 (359 degrees)
                      array b: toward Sura: grid square: LO36ad (353 degrees)
- Two 6x12 arrays - approx 600 kHz apart
If Luxembourg effect is present, both signals should be received on each individual frequency -- mixed in the ionosphere.

Russian poems by: Alexandr Chizhevsky (1897-1964)
Vocal performance by: Vladimir Atavin
Russian literary consulant: Vladyslav Atavin

Sound composition and breath recordings: Amanda Dawn Christie
SSTV images:  Radimed Montreal - echocardiogram of ADC (March, 2020)
SSTV image encoding:  Kim Andrew Elliot

Propagation Experiment
Mode: AM
Direction: 30 degrees off zenith, toward Arecibo, Puerto Rico:  18.34, 66.75 (91 degrees)

Co-Regulating the Spectrum: Meanwhile the Wave (2022) is a sound artwork by José Alejandro Rivera.
This movement transmits a 7.5 minute excerpt of the longer piece.

Propagation Experiment
Mode: AM
Direction: 30 degrees off zenith toward the Marseille Tidal Gauge in France; 43.278; 5.353 (22 degrees)

Marseille Tidal Gauge Aria (2019-2022) is a composition and performance by Sarah Nance.

Vocal Performance:  Sarah Nance
Poetic Text: Rasu-Yong Tugen (from Songs for the Black Moon)

Melody:  Sonification of mean sea level measurements from the Marseille Tidal Gauge, 1885 - 2012.Data Sourced from:
Wöppelmann, G., Marcos, M., Coulomb, A. et al. “Rescue of the historical sea level record of Marseille (France) from 1885 to 1988 and its extension back to 1849–1851”. J Geod 88, 869–885 (2014).
https://link.springer.com/article/10.1007/s00190-014-0728-6 (2023/07/23)

Luxembourg Experiment for Missing Fundamentals
Mode: AM
Direction: 30 degrees off zenith, toward Montreal, Quebec; 45.426; -73.6 (78.5 degrees)

Reception:
- Missing Fundamentals, also known as Ghost Resonances or Phantom Frequencies, occur when two certain notes are heard at once, and a third note (the missing fundamental) is also heard inside the head (generated either cognitively or by resonance in the ear canal, depending on whom you ask).

Two 6x12 arrays - approx 600 kHz apart
If Luxembourg effect is present, both signals should be received on each individual frequency -- mixed in the ionosphere.
If successful, and the listeners hear the two transmitted notes, plus a third note (a missing fundamental or a phantom frequency) will also be heard.

Saxophone improvisation by: Geneviève D’Ortun

Luxembourg Experiment for Wolf Fifths
Mode: AM
Direction: 30 degrees off zenith toward Montreal, Quebec; 45.526; -73.6 (78.5 degrees)
Reception:  Wolf fifths (also known as Procrustean fiths or imperfect fifths) are particularly dissonant intervals that span seven semitones.

Two 6x12 arrays - approx 600 kHz apart
If Luxembourg effect is present, both signals should be received on each individual frequency -- mixed in the ionosphere.

If you didn't hear the phantom frequency from the previous movement, perhaps it's because there were wolves chasing the ghost.

Composition of arctic wolf recordings by: Amanda Dawn Christie

Ionospheric Research Instrument as Morse Key
Mode: CW
Direction: 30 degrees off zenith toward Dallas, Texas; 32.783; -96.806 (112.5 degrees)
Reception: Turning the pulse wave on and off in Morse Code at 20wpm

Doubt and Circuitry (2023) is a forthcoming book of poetry by T.D. Walker, slated for publication this year.
This movement presents an assemblage of excerpts from several of these poems.

Frequency Sweeping Experiment / Drawing with FM CW
Mode: FM CW
Direction: Magnetic Zenith
Reception: side lobes only
Details: - Split array:  two 6x12 arrays

Frequency sweeping between 5.220 MHz and 5.3 MHz (centre point is 5.26 MHz)
Two drawings, a bolt of lightning and a feather, will each take 12 seconds to appear in the FFT waterfall, and the cycle will repeat 12.5 times.

More Reception Notes: Instead of listening to this one, watch the waterfall for the two drawings to appear.  The arrays will be on separate frequencies, but close enough to each other to contribute to the same drawing.  There may be interfering lines from other local broadcast stations - I embrace these as collaborative contributions to the drawings, making it so that the drawings will be different in each location depending on the contributed lines from other broadcasts.

Please take screen shots and or video recordings if possible.  As the cycle repeats, try different views or different zoom levels.

PMSE Experiment
Mode: AM
Direction: 30 degrees off zenith toward Virginia Tech; 37.224; 80.424 (91.5 degrees)

A lullaby for noctilucent clouds entangled with the myth of Ekho

Composed and Performed by: Amanda Dawn Christie

Counter Rotating Beam Experiment
Mode: AM
Direction:  Two beams sweep in opposite circles like searchlights looking for each other.
                    Split array:  two 6x12 arrays rotating 6 times per minute at 15 degrees off zenith.
Reception: expect to receive side lobes only

Shortwave listeners to receive partial transmissions as the beams sweep past their location. A short radio drama for Ionospheric Research Instruments.

Composition by: Amanda Dawn Christie