Radio Communicator

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Radio Communicator
Imperial Sunburst-Sun-IISS-Traveller.gif
Communications Device
Type Communications Gear
Tech Level TL–5
Cost Varies
Reference {{{ref}}}
Size Varies
Weight Varies
Manufacturer Various
Also see

A Radio Communicator is a technological device for sending and receiving signals, messages and data.

Description (Specifications)

Radio communicators use radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves. The information in the waves can be extracted and transformed back into its original form by another radio communicator.

Radios of increasing sophistication remain in use throughout a broad range of tech levels: radio waves are easy to manipulate, easy to detect, and can be broadcast, allowing anyone within range to receive the signal.

  • A radio is an Active device.
  • Active radio broadcasts can be detected by many sensor systems.
  • A radio broadcast (and the ability to receive a broadcast) can be disrupted or blocked..
  • A radio can simply listen to signals and broadcasts: in such cases it is termed a "receiver" and is a Passive system.
  • Although radio transmitters generally transmit a broadcast signal, advanced designs are able to send a tight beam transmission.

Image Repository

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Radio Direction Finder

A Radio Direction Finder specifically locates radio devices based on the radio waves that they emit. It consists of a receiving array (typically one or more aerials) and a control panel.

  • It is a passive sensor.
  • A Radio Direction Finder can detect signals across a variety of wavelength bands.
  • It is able to precisely pinpoint the source of a radio broadcast.


Radio transmissions can disrupted or blocked.

History & Background (Dossier)

The power of a radio communicator determines its effective broadcast range – the distance to which a clear signal will carry before it is sufficiently degraded to be indistinguishable from natural background noise and static.

  • Personal radio communicators are small and compact, making use of micro-electronics (and in some cases nanotechnology components) and very efficient lightweight batteries.
    • Commdots are a commonly used form of personal radio communicator.
  • Radio communicators fitted aboard vehicles and spacecraft are correspondingly larger and more powerful, with effective broadcast ranges measured in millions or even billions of km.
  • All spacecraft are automatically equipped with radio receivers integral to the hull. In the event of these receivers being destroyed, the receiver arrays of many other types of electromagnetic sensors will function adequately as radio receivers.

Technological Overview of Radio Communicators

The technology is generally thought to mature within the TL:4-6 Technological Epoch.

  • Radio Communicators are widely available from TL-5 onwards.
  • Radio Direction Finders are widely available from TL-5 onwards.

References & Contributors (Sources)

This article was copied or excerpted from the following copyrighted sources and used under license from Far Future Enterprises or by permission of the author.