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Dual-band RFID antennas enable international operation

There is a variety of different frequency bands available around the globe for RFID applications. Not all bands are available in all countries and therefore it is often useful to be able to have a dual band capability. One key element of this is to have a dual band antenna. To meet this need,

Posted on:10-22 View:176
How to Hook Up the Antenna to a Short Wave Radio

Short-wave radios are dependent upon an antenna to pick up signals from broadcasting stations. Though portable, short-wave radios will typically use an extendable whip antenna; home stations are built to be used with external antennas, typically mounted outdoors. It is necessary to connect the ante

Posted on:10-21 View:1335
Coaxial Feeder / RF Coax Cable Tutorial

-- coax cable or RF coaxial feeder is a form of RF feeder - it offers a relativly low loss, while remaining rugged and flexible. The most common type of antenna feeder used today is undoubtedly coaxial feeder or coax cable. Coax cable, often referred to as RF cable, offers advantages of conve

Posted on:10-21 View:1734
How to Calculate for a Radio Wave Antenna

Antennas must be the proper length to work efficiently. If an antenna is too long or short, the standing wave ratio (SWR) will rise above acceptable limits. The SWR measures the amount of radio frequency (RF) energy that is reflected back to the radio instead of going out the antenna. The formula f

Posted on:10-20 View:734
32 Watt Amplifier

Description A 32 Watt per channel stereo power amplifier made using the TDA2050V monolithic integrated circuit. Notes This circuit is for a 32 Watt stereo audio power amplifier using the TDA20501. With a dual 22 Volt supply this amplifier can deliver 32W into

Posted on:10-20 View:657
How to Build an Amplified TV Antenna

If you have an amplified TV antenna, you usually receive a much stronger signal than with a regular antenna. A pre-amplifier provides extra power to enhance the signal from the antenna to your house. A distribution amplifier gives your signal the strength necessary to travel to every TV in your hou

Posted on:10-17 View:221
Dual-Band Architecture for DOCSIS 3.1 Devices

Peregrine Semiconductor has launched its UltraCMOS PE42722 switch. This is a high-linearity RF switch that enables a dual upstream/downstream band architecture in cable customer premises equipment, CPE, devices. By using a dual-band architecture, multi-service operators have the flexibility t

Posted on:10-17 View:503
How to Build a Radio Transmitter

Building a radio transmitter is an educational way to learn about sound waves. In addition, a radio transmitter can be useful during storms, to transmit audio from portable MP3 players to radios or to transmit a low power radio program in your neighborhood. Even better, if you are

Posted on:10-16 View:300
Homemade AM/FM Radio Antennas

An AM antenna is one thing and an FM antenna is another. They are at opposite ends of the radio spectrum. The AM radio wave is a long wave. The FM radio wave is a short wave. What one needs for an AM/FM antenna is two opposites functioning in the same antenna. Car radios feature A

Posted on:10-16 View:3491
How to Build a Dedicated FM Receiver

A radio receiver is a device comprised of a circuit and an antenna. The circuit processes the signal received by the antenna before sending to be amplified. Many radio receivers are capable of handling a range of radio signals, including AM, FM and digital signals. A dedicated FM receivers handles

Posted on:10-15 View:382

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