Radio-Activity (German title: Radio-Aktivität) is the fifth studio album by German electronic music band Kraftwerk, released in November 1975. The band's first entirely electronic album is also a concept album organized around the themes of radioactive decay and radio communication. half being about radioactivity and the other half about activity on the radio. Bartos revealed that the title was inspired by a chart column in the American magazine, Billboard, which featured the most played singles under the title "Radio Activity". According to Wolfgang Flur, the concept arose as a result of the many radio interviews that Ralf and Florian had given on their American tour.
The album's cover depicts a Volksempfänger radio which was produced in Germany during the Third Reich regime.
Composition and recording
The album was recorded in Kling Klang Studio, Düsseldorf, Bartos and Flür worked on electronic percussion. LP liner notes state music and production was by Hütter and Schneider, with Emil Schult collaborating on lyrics. For this album, the band had decided to record some vocals in English and Schult's command of the language after studying for a while in the United States was better than Hutter's or Schneider's. Tim Barr pointed out the impact his experiences had in the United States on his ability to speak the language and in more subtle ways as well. Schult also designed the artwork, which was based on a late-1930s 'Deutscher Kleinempfänger' radio.
The overture instrumental piece "Geiger Counter" used Geiger counter beats based on musique concrète. The album featured use of the distinctive Vako Orchestron keyboard to provide vocal choir on title track. "Antenna" used an echo chamber effect, and Hütter's Farfisa electronic piano was used on "Transistor". For the album's recording, extensive use was made of the vocoder.
Release and promotion
In September 1975, the band toured the UK, playing 17 shows.
| rev2 = Drowned in Sound
| rev2score = 8/10
| rev3 = The Guardian
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| rev4 = The Irish Times
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| rev5 = Mojo
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| rev6 = Q
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| rev7 = The Rolling Stone Album Guide
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| rev8 = Select
| rev8score = 4/5
| rev9 = Spin Alternative Record Guide
| rev9score = 9/10
| rev10 = Uncut
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Radio-Activity was released to mixed reviews, with Rolling Stone criticizing the album: "...no cut on the album comes near the melodic/harmonic sense that pervaded Autobahn or the creative use of electronics on the much earlier album Ralf and Florian". Uncut wrote regarding their 2009 remaster that it "begins like a heartbeat in the void, accelerating into the pulse that will form the spine of the title-song, an eerie tribute to the intangibles (music, disintegrating atoms) that linger in the atmosphere." The review considers that it "has a musty scent of Old Europe, which proved a hit with the synth groups of 1980-81 (eg, Ultravox and Visage), and it retains a blood-chilling, Wagnerian quality even now, thanks to Kraftwerk's use of the Vako Orchestron, a choir-like relative of the Mellotron."
Kraftwerk
- Ralf Hütter – vocals, synthesizers, Orchestron, electronic piano, drum machine, electronics
- Florian Schneider – vocals, vocoder, votrax, synthesizers, electronics
- Karl Bartos – electronic percussion
- Wolfgang Flür – electronic percussion
Additional personnel
- Peter Bollig – technical engineer (Kling Klang Studio, Düsseldorf)
- Walter Quintus – sound mix engineer (Rüssl Studio, Hamburg)
- Robert Franke – photography
- Emil Schult – artwork
- Johann Zambryski – artwork reconstruction (2009 Remaster)
Charts
Weekly charts
{| class="wikitable sortable plainrowheaders" style="text-align:center"
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! scope="col"| Chart (1976)
! scope="col"| Peak<br /> position
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! scope="row"|Australia (Kent Music Report)
| style="text-align:center;"|94
|-
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! scope="row"| Canada (RPM)
| 59
|-
! scope="row"| France (SNEP)
| 1
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|-
! scope="col"| Chart (2020)
! scope="col"| Peak<br /> position
|-
|-
! scope="col"| Chart (2026)
! scope="col"| Peak<br /> position
|-
! scope="row"| Croatian International Albums (HDU)
|8
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|}