Radio Microphone Task Force Report

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Radio Microphone Task Force Report
Document No GSC16-GRSC9-09
Source Radio Microphone Task Force
Contact Brian Copsey, Task Force Convenor
GSC Session GRSC-9
Agenda Item 7.2

• Convenor Brian Copsey

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Radio Microphone (RM) Task Force

• Since 2007 RM have been confronted with the
  issues raised within Europe by the reallocation
  of 790-862 MHz band, previously part of the
  television spectrum 470-862 MHz band, to Mobile
  Fixed Communication Networks (MFCN)
• The speed of the implementation of the MFCN
  varies throughout Europe, but has already started
  e.g. in Germany and Sweden.
• LTE has emerged as the preferred technology for
  MFCN.

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Radio MicrophonesVictims of MFCNs

• Due both to MFCNs and compacting of the TV
  channels below 790 MHz, large amounts of spectrum
  have been lost for radio microphone use.

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Other Victims of MFCNs

• Within Europe the 863-865 MHz band is used by
  radio microphones and a range of cordless audio
  devices these will also be badly impacted.
• Annex A1 provides information on a limited
  number of immunity tests.

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Other Victims of MFCNs

• Whilst not the subject of this Task Force, many
  television delivery platforms and other devices
  such as RFID and alarms will also be impacted.
  Reports and results of various immunity testing
  can be found at
• http//docbox.etsi.org/Etsi_Cenelec/PUBLIC20FOLDE
  R20on20DD/

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RM Response to this Loss of Spectrum

• A Specialist Task Force was set up within ETSI to
  investigate Cognitive-PMSE (Program Making and
  Special Events).
• Annex A2 provides information on this topic.
• A public funded research project was initiated to
  transfer the results of the ETSI STF into a
  working demonstrator. This demonstrator will show
  the feasibility of the concept.
• Annex A3 provides information on this topic.

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RM Response to this Loss of Spectrum

• Further to the work of the ETSI-CENELEC JWG on
  the Digital Dividend Interference issue, a review
  of receiver characteristics and immunity is
  taking place.

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Other Issues

• The ETSI standard EN 300 422 covers both radio
  microphones and Assistive Listing Devices (ALD).
• In recent years ALDs have progressed from simple
  FM systems mainly used within schools to
  sophisticated ear-to-ear devices. EN 300 422 has
  been revised with appropriate test methods for
  them.
• The recent published version of the standard is
  available in the Task Force docbox.

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Next Steps / Actions

• To reflect the changes in the operating
  conditions and environment for Radio Microphones,
  we suggest the following changes to the radio
  microphone resolution as presented in Annex 4.
• Please consider renewing the radio microphone
  resolution and including the suggested changes.

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Next Steps / Actions

• Would any of the members wishing further
  information or to contribute to the work of the
  task group please contact
• Brian Copsey.(BC_at_copsey-comms.com)
• All documents and annexes are available at
• http//docbox.etsi.org/workshop/GSC/GRSC_WP1_radi
  o_mics/GSC16
• The docbox will be updated with information on
  the various subjects as it becomes available.

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Thank You for your attention