Radio Frequency (RF) transmitters/receivers are electronic devices that can be used to control or automate nearly any product that receives/transmits video, voice or data information. For example, retailers use RF transmitters as alternatives to barcodes in inventory management systems. RF receivers are also used in radios, security systems, cell phones, keyless entry gates and doors and many other eletronic products.
A basic understanding of the various modulation processes is necessary before choosing RF transmitters and receivers. Common modulation methods include amplitude modulation (AM), frequency modulation (FM) and phase modulation (PM). AM applies a varied voltage to the carrier. Alternatively, FM involves varying the frequency of the waveform. PM consists of delaying the natural flow of the alternating current waveform. Follow these steps to choose RF transmitters for your product:
1. Compare various types of RF transmitters and receivers and choose those that best fit your business needs.
2. Evaluate specialized services offered by RF transmitter design firms.
3. Shop online for various RF transmitter suppliers and find bargains on the devices you need.
Action Steps
The best contacts and resources to help you get it done
Compare RF transmitters/receivers
Some RF receivers have visual or audible alarms or LED lights that indicate operation and signal reception. Other RF transmitter applications may require the use of additional products such as antennas, coaxial cables, connectors or ports. For outdoor use RF transmitters, you will need a strong, waterproof design. Wireless RF receivers and transmitters are useful in receiving data from remote locations without the need for wiring. Small RF transmitters and receivers work well for compact, portable devices.
I recommend: SECO-LARM manufactures a wide range of wireless RF transmitters and receivers and offers online descriptions of each product for easy comparison.
Information Unlimited offers a range of FM RF transmitters/receivers.
Evaluate RF transmitter design firm services
Choosing a RF transmitter design firm to consult on prototyping, testing and circuit debugging can be a wise decision if you are short on time and are not an engineer skilled in RF design.
I recommend: Sanders RF Consulting offers an experienced staff of RF engineers who offer low-cost consultation services for every phase of your project including inception, prototype and final production phase.
RadioLabs specializes in RF design and offers cost-effective solutions for analog projects.
Find RF transmitter suppliers
Once you have determined which RF electronic receivers you need, search online for the most affordable RF components. You can also purchase a module RF transmitter which is a pre-packaged set of components available for low-cost, easy project production.
I recommend: Linx Technologies offers a variety of module RF transmitters that are easy-to-use for engineers of all skill levels.
NoKey.com sells a variety of RF transmitter and receiver sets.
Tips & Tactics
Helpful advice for making the most of this Guide
- There are also various other complementary devices that you may find useful such as RF modules and RF transceivers. RF modules are incomplete circuits that can be used in larger designs. RF transceivers are used in various audio, data and video components.
The official source of RF Transmitters/Receivers is
the RF Transmitters/Receivers page at Business.com
Featured Vendors
Narda East: RF ReceiversCompany designs and manufactures components, networks, and instruments for communications, industry and defense electronics.
www.nardamicrowave.com
GF Piping Systems: Sensor TransmittersSupplies engineered piping systems, valves, fittings, and actuators, as well as support, custom products, assembly, and heat exchanger fabrication.
www.us.piping.georgefischer.com
GlobalSpec.com: Transmitters/ReceiversDatabase of suppliers for telemetry transmitters and receivers, access points, network transceivers and fiber optic transceivers.
www.globalspec.com
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Autodesk.com/Beyond-3d