I I I . E M I / R F I

EMI/RFI

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. When this energy adversely affects the operation of an electronic device, it is called Electromagnetic Interference (EMI) or Radio Frequency Interference (RFI).

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

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, microwave sources, and paging transmitters. Radio waves are a form of electromagnetic energy. Because electromagnetic energy is more intense closer to the transmitting antenna (source of emission), the electromagnetic energy 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 the 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.

Jazzy 1133 Owner’s Manual Rev B 03-03

www.pridemobility.com

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Pride Mobility Jazzy1133 owner manual I . E M I / R F, Frequently Asked Questions Faqs, Where do radio waves come from?
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Jazzy1133 specifications

The Pride Mobility Jazzy 1133 is a versatile power chair designed to provide exceptional comfort and mobility to users with limited mobility. This power wheelchair is not only renowned for its sleek design but also for its cutting-edge technology and user-centric features that enhance mobility in a variety of settings.

One of the most notable features of the Jazzy 1133 is its mid-wheel drive design. This allows for a tighter turning radius, making it incredibly maneuverable in indoor spaces, such as homes and shops. The chair is equipped with a powerful motor that provides smooth acceleration and a top speed of approximately 4.5 mph, ensuring users can navigate both indoor and outdoor environments with ease.

Comfort is paramount in the Jazzy 1133, and it comes with a high-back seat that offers luxurious padding and adjustable armrests. The seat height can also be adjusted, accommodating various user needs and preferences. This attention to comfort is essential for users who may need to spend prolonged periods in the chair, as it minimizes the risk of pressure sores and enhances overall user satisfaction.

The Jazzy 1133 features advanced suspension technology, providing a stable ride over different terrains. This means users can traverse grassy areas, sidewalks, and uneven surfaces without compromising comfort or safety. Its robust and durable construction ensures that the chair can withstand daily use while retaining its performance.

In terms of technology, the Jazzy 1133 is equipped with a performance-oriented controller that allows for precise maneuverability. Users can easily navigate their chair with intuitive joystick controls that enable them to move forward, backward, and accommodate various turns. The chair also has programmable settings, allowing users to tailor the chair's performance to their specific needs.

Durability is another hallmark of the Jazzy 1133, featuring strong, puncture-resistant tires that can handle a variety of surfaces. The battery system ensures reliable performance, offering a range of up to 12 miles on a single charge, making it ideal for both short trips and extended outings.

Overall, the Pride Mobility Jazzy 1133 is a thoughtfully designed power wheelchair that combines comfort, technology, and reliability. With its user-friendly features and robust performance, the Jazzy 1133 stands out as a leading choice for individuals seeking a quality mobility solution that meets their varied lifestyle demands.
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