I I I . E M I / R F I

Laboratory tests performed by the Food and Drug Administration (FDA) have shown that radio waves can cause unintended motion of power chairs. Radio waves are a form of electromagnetic energy (EM). When this energy adversely affects the operation of an electronic device, it is called Electromagnetic Interfer- ence (EMI) or Radio Frequency Interference (RFI).

WARNING! Radio waves may interfere with the control of power chairs.

EMI/RFI—FREQUENTLY ASKED QUESTIONS (FAQS)

The following FAQs summarize what you should know about EMI/RFI. Use this information to minimize the risk that EMI/RFI will affect your power chair.

Where do radio waves come from?

Radio waves are emitted from the antennas of cellular phones, mobile two-way radios (such as walkie- talkies), radio stations, TV stations, amateur radio (HAM) transmitters, wireless computer links, micro- wave sources, and paging transmitters. Radio waves are a form of EM. Because electromagnetic energy is more intense closer to the transmitting antenna (source of emission), the EM fields from two-way radios are of special concern to power chair users.

If my power chair is affected by EMI/RFI, what kind of motion should I expect? This is hard to predict. It would depend on a number of factors:

νStrength of the radio waves

νConstruction of the power chair

νPosition of the power chair (whether it is on level ground or on an incline)

νWhether or not the power chair is in motion

An affected power chair’s movement can be erratic. It may move by itself or come to a sudden stop. Furthermore, it is possible for EMI/RFI to unexpectedly release the brakes on a power chair. Some intense sources of EMI/RFI can even damage the control system of your Jazzy.

Is there any way to know for sure whether radio waves are responsible for the unintended motion of my power chair?

Unfortunately, interference from radio wave sources may be difficult to recognize, since the signals from these sources are invisible and may be intermittent. However, the FDA recommends that you report all incidents of unintended motion or brake release to the power chair manufacturer and, if possible, note whether there was a radio wave source nearby at the time of the incident.

Has anyone been hurt from erratic, unintended motion of power chairs?

The FDA has reports of injuries that resulted from the apparent uncontrolled motion of power chairs. However, it is unclear how many of these incidents were actually caused by radio wave interference.

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Jazzy 1104 Rev F/Feb03

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Pride Mobility Jazzy 1104 I . E M I / R F, EMI/RFI-FREQUENTLY Asked Questions Faqs, Where do radio waves come from?
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Jazzy 1104 specifications

The Pride Mobility Jazzy 1104 is a sophisticated power wheelchair designed to enhance mobility and independence for users with varying physical needs. Known for its robust design and advanced features, the Jazzy 1104 stands out in the market for its combination of power, comfort, and versatility.

One of the main features of the Jazzy 1104 is its advanced mid-wheel drive system. This allows for exceptional maneuverability, making it easy to navigate tight spaces and indoor environments. The mid-wheel drive design places the center of gravity directly over the drive wheels, providing optimal stability and control. This feature is particularly beneficial for users who need to maneuver around furniture or in crowded areas.

The Jazzy 1104 is powered by two high-performance, front-wheel drive motors that provide a top speed of up to 4 miles per hour. This powertrain is complemented by a heavy-duty suspension system, ensuring a smooth ride over various terrains. Whether on smooth sidewalks or uneven surfaces, the Jazzy 1104 delivers a reliable and comfortable experience.

Another notable characteristic of the Jazzy 1104 is its weight capacity. It can support individuals weighing up to 450 pounds, making it a suitable option for larger users. The seat is designed for comfort and durability, featuring adjustable armrests and multiple seat sizes available, allowing users to find their perfect fit.

Technology is a key aspect of the Jazzy 1104. It incorporates a state-of-the-art control system that is intuitive and easy to use. The joystick allows for precise steering and speed control, reducing the learning curve for new users. Additionally, the wheelchair includes a quick-release battery system, making it easy to swap out batteries for extended use.

Safety features are also paramount in the design of the Jazzy 1104. It comes equipped with anti-tip wheels and a stable base to prevent accidental tipping. The wheelchair's tight turning radius further adds to its safety profile, allowing for responsive handling in varied settings.

In conclusion, the Pride Mobility Jazzy 1104 combines power, comfort, and advanced technology into a user-friendly design. Its outstanding features cater to individuals seeking greater independence and mobility, making it a preferred choice in the power wheelchair market. With its robust construction and thoughtful engineering, the Jazzy 1104 continues to meet the diverse needs of its users effectively.
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