News-FMUSER FM/TV Broadcast One-Stop Supplier

Position:Home >> News

Products Category

Products Tags

Do You Know the Basics of Power Amplifiers?

With so much attention on IBOC, it is appropriate to step back and review the basic principles of RF amplifiers. The radio transmitter is a collection of stages. Each stage modifies the signal in some way to produce the desired output. In the first stage, an oscillator or exciter genera

Posted on:12-06 View:105
What Role Does a Power Amplifier(PA) Play in RF?

In the RF signal chain, the power amplifier (PA) is the active element located between the transmitter signal chain circuitry and the antenna, Figure 1. It is often a single discrete component, one with requirements and parameters which differ from those of much of

Posted on:12-04 View:168
How to Live Stream on Youtube with Encoder

The first step to setting up your new YouTube live streaming empire is to create a YouTube account. If you haven’t done so already, check out our step by step guide on how to do so. If you have and you want to start getting it ready for streaming, follow the steps below:

Posted on:12-03 View:134
How Far Will My Signal Go?

FM is for all practical reasons line of sight. Your signal should go as far as the horizon (given enough transmitter power to get there). In real terms the background noise and other stations signals will prevent reaching the horizon. Generall

Posted on:11-29 View:108
How to Choose the Corresponding Connector for the Feeder Cable

The growth of wireless and high speed data applications has only expanded the use of coaxial cabling beyond traditional video and telecommunications uses. With the growth and standardization of coaxial cabling for a wide range of applications, coaxial cabling has become very familiar

Posted on:11-28 View:147
What is the definition of voltage standing wave ratio?

Definition and Background In a radio frequency (RF) electrical transmission system, the standing wave ratio (SWR) is a measure of how efficiently RF power is transmitted from the power source, through the transmission line, and into the load. A common exa

Posted on:11-27 View:458
How to Choose a Portable Digital Audio Recorders

Portable digital audio recorders are designed for many different uses. Some are geared specifically for musical recording artists, others are built for electronic news gathering in the field. It is important to understand the differences in the features each record

Posted on:11-26 View:232
How does the voltage standing wave ratio form?

A Brief History of VSWR When electric telegraphy was the dominant means of wired communication, the lines used were comprised of bare copper wires suspended on telegraph poles. For insulation the line relied on the large spacing between the wires as well as the wires being mount

Posted on:11-23 View:126
What is the definition of decibels?

Most communication systems (human speech, sonar, microwave, radio, co-ax, fiber optics, twisted pair etc) are simply described in terms of: Transmitter power Transmission path degradation Receiver sensitivity (power)

Posted on:11-22 View:230
What Are Portable Audio Recorders?

For years, capturing digital audio was limited to expensive and bulky professional recorders. Things have changed. It’s now possible to record professional audio for under $300 (or less!) from a kit no larger than your hand. Portabl

Posted on:11-21 View:137

Previous 493494495 496 497 Next

Products Category

Products Tags

Fmuser Sites