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Medical Implant Communications
Service Frequency Table

This table is the frequency chart for the legal Medical Implant Communications Service. There is only 1 designated range (as of 4/1/2006 still) of frequencies. Each device must be registered for compliance and conflict avoidance. MICS, as it is called, uses certified private use grade, low power transmitters similar to Personal Radio Services equipment. However, the 402-405 MHz frequency band is available for MICS operations on a shared, secondary basis. The FCC determined that, compared to other available frequencies, the 402-405 MHz frequency band best meets the technical requirements of the MICS for a number of reasons. The 402-405 MHz frequencies have propagation characteristics conducive to the transmission of radio signals within the human body. In addition, equipment designed to operate in the 402-405 MHz band can fully satisfy the requirements of the MICS with respect to size, power, antenna performance, and receiver design. Further, the use of the 402-405 MHz band for the MICS is compatible with international frequency allocations. Finally, the use of the 402-405 MHz frequency band for the MICS does not pose a significant risk of interference to other radio operations in that band. MICS systems consist of the transmitters connected to medical implant devices, and programming, monitoring and control equipment. A Medical implant device is generally regarded as apparatus that is placed inside the human body for the purpose of performing diagnostic or therapeutic functions, such as cardiac pacemakers and defibrillators. Operation in the MICS is permitted by rule and without an individual license issued by the FCC. A person is permitted to operate medical implant transmitters connected to medical implant devices that have been implanted in that person by a duly authorized health care professional and medical implant programmer/control transmitters associated with their medical implant transmitter(s). Duly authorized health care professionals are permitted by rule to operate MICS transmitters. Manufacturers of medical implant devices and MICS transmitters and their representatives are authorized to operate transmitters in this service for the purpose of demonstrating such equipment to duly authorized health care professionals. No entity that is a foreign government or which is acting in its capacity as a representative of a foreign government is eligible to operate a MICS transmitter. The term 'duly authorized health care professional' means a physician or other individual authorized under state or federal law to provide health care services using medical implant devices. Operations that comply with the requirements of this part may be conducted under manual or automatic control.

The MICS was officially adopted by the FCC on October 10, 1999; this page was created the same day. The service rules for the equipment and use of the MICS include limitations on transmitter output power, out-of-band emissions, and protection of other services. Users of MICS transmitters must cooperate in the selection and use of channels in order to reduce interference and to make the most effective use of the authorized facilities. Most importantly, channels must be selected so as to avoid interference to other MICS transmissions. As a safeguard against such MICS to MICS interference, external medical implant programmer/control MICS transmitters must incorporate a mechanism for monitoring the channel or channels that the MICS system devices intend to occupy and, unless there is a medical implant event, may not initiate a MICS communications session unless certain 'access criteria' are met. A medical implant event is defined as an occurrence or the lack of an occurrence recognized by a medical implant device, or a duly authorized health care professional, that requires the transmission of data from a medical implant transmitter in order to protect the safety or well being of the person in whom the medical implant transmitter has been implanted. The Commission has clarified that regularly scheduled transmissions that are not instigated by a change in the patient’s medical condition do not qualify as medical implant events. A request for waiver to permit certification of implanted devices that emit periodic scheduled transmissions is pending. In addition, all MICS operations, as a consequence of their secondary status, must not cause harmful interference to stations in the Meteorological Aids, Meteorological Satellite, or Earth Exploration Satellite Services operating in the same or adjacent frequencies. Further, MICS stations must accept interference from such Meteorological Aids, Meteorological Satellite, or Earth Exploration Satellite Service stations. Any non-implanted MICS apparatus must be made available for inspection upon request by the FCC. Persons operating implanted medical implant transmitters must cooperate reasonably with the FCC in the resolution of interference complaints. For complete licensing information, see the FCC license information, here. This is the link to the FCC personal radio services available. You may also find interest in the Family Radio Service (FRS) Frequency Table, General Mobile Radio Service (GMRS) Frequency Table, Multi-Use Service (MURS) Frequency Table, Wireless Medical Telemetry Service (WMTS) Frequency Table and the Citizens Band Radio (CB) Frequency Table. MICS is one of five Citizens Band Radio Services. The others are the (original) Citizens Band Radio Service at 27 MHz, the Wireless Medical Telemetry Service (WMTS) at 216-217 MHz, the Low Power Radio Service (LPRS) at 216-217 MHz, and the Family Radio Service (FRS) at 460 MHz.

MICS Designated Frequency Ranges
MICS = 402 to 405 MHz

Version 1.0.1

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