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Feel the Difference with Splitters and Combiners

Date posted: May 30, 2017

• Power divider and combiners are used in various ways to distribute or combine signal needs. Mostly considered as passive devices, these devices often find their use in the field of radio technology. Active splitters combine the passive splitter with an amplifier to counteract the splitting losstypically resulting in a 0dB loss device. These devices Read More...

Using Microwave Amplifiers to Strengthen Power and Energy

Date posted: May 29, 2017

A microwave amplifier boosts the power signal (output) of a microwave device. It increases the amplitude of the wave, which holds direct relation to its level of power. The amount of intensification provided by an amplifier is the ratio of input to an output voltage or power gain. Amplifiers find their use in all electronic Read More...

The Important Components of Phase Lock Oscillators

Date posted: May 5, 2017

Telecommunication’s increases in complexity and importance It builds communications between people, computers and machines. You can communicate through terrestrial and satellite telecommunication. All the messages, signals, information, writings, images, or other types of things are shared through radio, telephone, cable or other options. The Phase Lock Oscillator (PLO/PLDRO) controls the position in the frequency spectrum Read More...

ISM Band Amplifiers – Serving Several Telecom Purposes

Date posted: May 4, 2017

Amplifiers are used in most telecom equipment. There are different kinds of amplifiers that are used for different purposes. GaAS and GaN are the SSPA amplifiers that provide certain benefits in linearity and efficiency. Important parameters include: Gain, Power output, noise factor and frequency coverage. Benefits ISM Band Amplifiers are designed for scientific, industrial and Read More...

What is Satcom Modem? – How DVB-S2 Works?

Date posted: May 1, 2017

A Satellite Communication (Satcom) Modem or satmodem is a Modulator and Demodulator used for data transfers through a satellite. Models range from basic devices for internet access to complex and multifunctional equipment for commercial use, different types of satellite modems are available. The main function of modulator-demodulator or modem is to transform an input bit-stream Read More...

Phase Lock Oscillators for Superior Frequency Stability

Date posted: April 7, 2017

In this technological era, a phase lock loop is an effective technique to provide an accurate and stable Frequency source, which regulates transmitted signals to their designated frequency spectrum Raditek manufactures various phase lock oscillator types covering 300MHz to 41GHz. A High Accuracy TCXO (temperature Compensated Crystal Oscillator) or OCXO (Ovenized Crystal Oscillator) generates a Read More...

Block Upconverters BUC in DVBS2 Digital TV Distribution

Date posted: April 6, 2017

Digital video broadcasting satellite Technology refers to digital television distributed by Satellite, which is a standard, specifically designed for the DVB-S system. The dvb-s2 is the current version for broadcasting HDTV and standard, interactive services including data content distribution and internet access. The device has RF outputs for direct connection to STBs and IF outputs Read More...

Low Noise Block DownConverters for Internet access

Date posted: April 5, 2017

In this fast-paced society, what you need is a computer system and a high-speed internet service. Perhaps a wired connection is not possible for various reasons all you need is a satellite connection that may offer a free browsing experience.This type of link is an incredible option for wider reach and better usage, which is Read More...

ISM band Amplifiers are Designed for Industrial, Scientific and Medical Uses

Date posted: March 29, 2017

Amplifiers are used for many telecommunication purposes but there are different types that find their use for other purposes as well. SSPA Amplifiers GaN and GaAs are such types offering advantages in efficiency and linearity. Apart from these, there are many more amplifiers with various other characteristics. As the utility of these devices vary, so Read More...

Dvb-S2 Modulator – for DTV Telecommunication Distribution

Date posted: March 28, 2017

All are aware of the presence and utility of oscillators and modems in telecommunication. Both of these tools have their own work to perform and come in wide varieties depending on the need. Among oscillators, Phase Lock Dielectric Resonant Oscillators (PLDRO) is the heart. Similarly, modems are keys for modulating and demodulating and encryption. They Read More...

Phase Lock Oscillator and Satcom Modems – The Two Essential Components of Satcom (Satellite Communication)

Date posted: March 26, 2017

Communication has always been an important tool in the society. It bridges one people with another and helps to reduce the gap between them. Nevertheless, when there is a stretch of distance between the two, then what should you do? Well, you communicate by means of technology called telecommunication. Here, information, message, signals, images, writings Read More...

Salient Features of SSPAs and LNBs

Date posted: February 10, 2017

SSPAs – Solid State Power Amplifiers basic design finds extensive use in telecommunications, radar applications, defense applications in missile warfare and airborne communications. RF (Radio Frequency), SSPAs,are manufactured with cutting edge technology as diverse applications are made possible. These power amplifiers provide high performance is adverse conditions. High Power microwave SSPAs are based on Power Read More...

Cutting Edge Technology Products for Satellite and Microwave Communication

Date posted: February 8, 2017

Today internet broadband is the biggest revenue generator for ISPs (Internet service providers). With 3g and 4g technology becoming prevalent and the future introduction of 5g broadband, it is obvious that wireless broadband is here to stay. Being connected means the necessity of carrying a Satcom modem and Transceiver. These modems have both sending and Read More...

Moore’s Law Strengthening Performance of PLLs and Bucs

Date posted: February 8, 2017

Electromagnetic waves tend to become weak with distance. Signal frequency requires repeatition to reach long distances the use of phased lock loops in matching the frequencies form an important part of integrated circuits. Typical communication systems constitute particular communication networks and transmission technologies. Data terminal equipments are the bridges that interconnect and allow the system Read More...

All You Need To Know about Satcom (Satellite Communications) Modems

Date posted: January 11, 2017

Satcom Modems are devices used to establish data modulation and demodulation used with a BUC, LNB and dish using a communications satellite as a relay. What is a Satellite Modem? A modem is an electronic device that performs two basic functions – Modulation of a digital input to a microwave signal and its demodulation, which Read More...

A Quick Guide to Phase Locked (Loop) Oscillators (PLO)

Date posted: January 11, 2017

Upconverting is the process of converting the intermediate frequencies to a block of higher frequency signals. The upconverter, for example, uses a Local Oscillators and can be found in Radio telecommunications systems and computers. For highest frequency stability, and best phase noise, a phase locked local oscillators is typically used. A DRO (Dielectric Resonant Oscillator) Read More...

Are LNBs As Important As They Appear To Be?

Date posted: January 6, 2017

In the world of satellite communication, a lot depends on the proper transmission and reception of signal. LNBs are critical to amplify the received satellite signal with minimal noise contribution. Low-Noise Block down Converter A low-noise block down converter comprises of a receive-only amplifier and down converter mounted on the satellite dish. There are many Read More...

Understanding Electromagnetic Spectrum and Their Uses

Date posted: December 12, 2016

Radio frequency (RF) includes any of the electromagnetic wave frequencies from around 3 kHz to 300 GHz, which include frequenciesused for communications or radar signals. Extremely to very low frequency (to 20KHz) are generally sound based and can be heard by most humans. These are the radio spectrums after which are the light spectrum and Read More...

PLO and BUC in Satcom

Date posted: December 9, 2016

Noise is always present in communications. Electronic systems generate some form of unwanted energy as spurious in the radio frequency. This unwanted energy termed as spurious signals (which can be harmonically related to the wanted signal, or not) and seen as spikes in a spectrum analyser can cause performance degradation withall data streams,including digital signal Read More...

News Information Courtesy Of Advanced Satellite Communications

Date posted: December 7, 2016

News gathering has never been so technologically defined as much as in the 21st Century. Satellite communication has become the biggest enabler in disseminating information. Some of the key components of a satellite system are described. The workhorse of communication systems are the broadband,geostationary satellites. Without this technology communication across the world will become so Read More...

DVB – S2 Modulator – The Second Standard Generation of Satellite Broadband Service

Date posted: November 7, 2016

Developed under the DVB (Digital Video broadcasting) project in 2003, the DVB-S2 modulator is undoubtedly a second generation specification applications based on satellite broadband. Structured in the form of toolkit, this system allows you to implement various applications such as sound and TV broadcasting, and interactivity. It also offers different professional services too including gathering Read More...

Band Pass Filters and Diplexers – Meeting the Industry’s Filtering Needs

Date posted: November 4, 2016

Being passive, filters and diplexer’s main challenges are improved performance over ever more difficult environmental specs and tighter frequency plans; needed better roll offs, for improving spectral efficiency. What are BP Filters and Diplexers? The band pass filters and diplexers encompass a variety of specifications. This leaves the designers to minimize the level of mutual Read More...

SSPA Solid State Power Amplifiers – The Growing Importance and Acceptance

Date posted: November 2, 2016

Highly power RF requirements are growing as new areas of usage in a diversity of applications ranging from microwave ovens to particle accelerators and from self-cauterizing scalpels for surgery to very high power TWTA replacement amplifiers for satellite and terrestrial communications. With VED (Vacuum Electronic Devices) historically being the highest level of RF and microwave Read More...

Satcom Modems – How Broadband Satellite Internet Works

Date posted: October 27, 2016

RADITEK DREAM (DAMA REAdy Modem) Satcom, networking (MESH and STAR) Satellite modems. ALL IP based, networking modems. Can operate as an SCPC, point to point link also, always SINGLE satellite HOP modems. Also known as MF-TDMA-second generation (Mutli frequency, time division Multiple access). As they can be used for any and more applications, the current Read More...

SSPA Solid State Power Amplifier: Emerging Technology in Communication Devices

Date posted: October 27, 2016

1. RF/microwave power Amplifiers are used in wireless communications, and also in applications such as jamming, imaging and RF heating. 2. Each application has its own unique requirements for power, frequency, bandwidth, load, efficiency, linearity, and cost. 3. RF power is generated by a wide variety of techniques and devices.   4. An SSPA (Solid Read More...

Designing DRO (Dielectric Resonant Oscillators ) and PLOs (Phase Lock Oscillators)

Date posted: October 25, 2016

RADITEK offers free running Dielectric Resonant Oscillators (DRO) as well as Phase Locked (PLO or PLDRO) and synthesized oscillators (RSPLO). In the PLO circuit design stage, we often need to characterize the designed PLL response in the linear operating region as well as the non-liner operating region. The Phase Locked loop (PLL) works in the Read More...

An Insight into the Functioning of SSPA Solid State Power Amplifier

Date posted: September 7, 2016

A radio frequency power amplifier (RF power amplifier) is a type of electronic amplifier that converts a low-power radio-frequency signal into a higher power signal. Typically, RF power amplifiers drive the antenna of a transmitter. Design goals often include gain, power output, bandwidth, power efficiency, linearity (low signal compression at rated output), input and output Read More...

An Overview of the Technical Specifications of Satcom modem

Date posted: September 7, 2016

A satcom or satellite modem is a modem that is useful for establishing data transfers using a communication satellite as a relay. The full form of modem is “modulator-demodulator” whose major function is to change an input bit stream to a radio signal and vice versa. Some devices include only a demodulator (having no modulator, Read More...

Diplexers

Date posted: September 5, 2016

A Diplexer separates two different frequency bands in the receive path and combines them in the transmit path. These frequency bands usually will be wide apart in frequency domain for diplexer to work satisfactorily. It is often referred as a RF power combiner/divider with added functionality of filtering. Broadband Filters are used to pass appropriate Read More...

An overview of Low Noise Block Down Converter

Date posted: August 9, 2016

Low Noise Block Downconverter Have you ever wondered what is an LNB and what is an LNB LO frequency? The abbreviation LNB stands for “Low Noise Block doawnconverter”. It is the device on the front of a satellite dish that receives the very low level microwave signal from the satellite, amplifies it, changes the signal Read More...

Significance of Satcom Modem in Data Transferring

Date posted: August 8, 2016

Satellite Modem A device used to transmit and receive signals from a satellite transponder. For transmission, it modulates digital data signals (can be from a multiplexing device) into a modulated carrier (BPSK, QPSK, 8PSK, 16PSK/QAM etc) frequency for delivery to an up converter, amplifier or BUC (Block Up converter) and antenna. For receiving, it converts Read More...

Phase Lock Dielectric Resonator Oscillator (PLDRO/DRO)

Date posted: August 4, 2016

A Frequency source for Satellite Communications, for example. A dielectric resonator is a piece of dielectric (nonconductive) material, usually ceramic, that is designed to function as a resonator for radio waves, generally in the microwave and millimeter wave bands. The microwaves are confined inside the resonator material by the abrupt change in permittivity at the Read More...

Solid State Power Amplifiers (SSPA)

Date posted: July 18, 2016

The SSPA finds its use in assorted applications including airborne, radar, missile, and communications. Moreover, these diverse equipment’s work together to meet the need for today’s cutting-edge technology for designing the SSPA. The high performance, cost effectiveness and reliability of the Raditek SSPA range covering 100KHz to 100GHz. Our SSPA designs utilize Gallium Arsenide andGallium Read More...

Phase Lock Oscillators– Vital Part of Communication Systems

Date posted: July 15, 2016

When the output signal of oscillators is in a locked phase with reference signal, the resulting system acquires the form of a Phase Locked Oscillator (PLO). These PLO provide a stabilized frequency in communication channels. These components act as signal modems and reconstruct or generate signal with low noise by multiplication of signal. Some oscillators Read More...

Raditek Solid State Power Amplifier – Providing Amplification at its best

Date posted: July 14, 2016

The abbreviation SSPA unfolds as Solid State Power Amplifier, which uses field-effect transistors in order to provide necessary amplification at Gigahertz frequencies. They also utilize Gallium Nitride and Gallium Arsenide devices for High Power amplification. The amplifier comprises two broad categories depending on power: • Low power driver section • High power output stages The Read More...

Raditek Amplifiers for the ISM Bands

Date posted: July 7, 2016

The industrial, scientific, and medical radio band refers to a group of radio bands or parts of the radio spectrum that are internationally reserved for the use of radio frequency (RF) energy intended for scientific, medical and industrial requirements rather than for communications. Uses include Defense, space, electronic warfare, navigation and radar systems. Medium power Read More...

DVB-S, S2, S2x Modulator

Date posted: July 5, 2016

Introduction: DVB-S2 (EN 302 307) is a digital satellite transmission system developed by the DVB Project. It makes use of the recent modulation and coding techniques to deliver performance that approaches the theoretical limit for such systems. Satellite transmission was the first area addressed by the DVB Project in 1993 and DVB standards form the Read More...

Low Noise Block Downconverter – A Feasible Component for Receiving Satellite Signal

Date posted: July 4, 2016

Telecom systems have usage and prominence in almost every industry to establish a wide and high reliability uninterrupted network of communication. Wide ranges of VSAT (very small aperture terminal) network equipment are responsible for serving the distinctive need of satellite communication for users both at business and home. A part of these systems are low Read More...

Phase Lock Oscillator

Date posted: July 1, 2016

A phase lock oscillator usually abbreviated as PLO is a feedback control circuit. The output signal of this oscillator is phaselocked to a reference signalMostlya crystal oscillator is the reference frequency. A PLO is comprised of three fundamental blocks- Phase Detector Loop Filter Voltage Control Oscillator Phase Lock Oscillators are available as: PLXO – 10 Read More...

Raditek Circulator

Date posted: July 1, 2016

We offer the widest range and best performance Stripline, Microstrip, Lumped element Coaxial and Waveguide circulators in the world, extremely aggressive pricing structure. Our ferrites are the best anywhere From mille Watts to Kilo Watts, standard and special custom models, even including cryogenic models.working down to -272.5oC. Still the best specifications and the lowest prices Read More...

Satcom Modem Technology for Broadband

Date posted: June 30, 2016

A satellite communication modem is instrumental in transferring data using relay link via communications satellite. The Satcom Modem technologies support BPSK/QPSK/16-QAM/8-PSK modulations and coding. These modems have advanced tracking systems. Additionally, without any need of terrestrial infrastructure, these Satcom modems provide the cable-internet data rate connections. Properties of Satcom Modems Depending on the parameters and Read More...

An Overview of Low Noise Block Downconverters for TVRO

Date posted: June 30, 2016

A low-noise block downconverter, normally called a low-noise block (LNB) is a central component of a satellite dish. The essential function of this convertor is to translate incoming signals from a satellite to a picture to visualize on TV. The LNB is fitted on the end of the arm on a dish antenna and gets Read More...

Satcom modem –The Heart of a Satcom System

Date posted: March 22, 2016

Almost every industry makes use of advanced technology telecom systems to ensure effective communication with people all over the world. One of the most effective and reliable communication sources is Satcom that offers convenient internet access to users across different sectors. It finds its extensive usage in providing effective television delivery, telecommunication purpose, and military Read More...

Understanding the Difference between Low Power Indoor Block Up Converter (BUCs) and High Power Outdoor BUCs Mounted on the Transmitting Antenna

Date posted: March 22, 2016

When it comes to broadband connections for government, commercial, military, or infrastructural industry, the major technological advancements that come top include block up converter (BUC). With their distinctive functions and roles to play. Block up converters (BUC) are used extensively in those military and commercial satellite systems that deploy transponders of C, Ku and Ka-band Read More...

Technical Aspects of Phase Lock Oscillator

Date posted: March 22, 2016

A Phase Lock Oscillator is a high accuracy frequency signal source that gets its stability by being phase locked to a harmonic of a precision lower frequency reference. The lower frequency reference has to be very accurate and very stable, with accuracy measured in ppm (parts per million) and stability measured in short term temperature Read More...

How Low Noise Block Downconverter or LNBs Works?

Date posted: March 20, 2016

A Low Noise BlockDown Converters or LNB is a critical devicemounted at the focal point of a dish antenna. They are used mainly for satellite communications to initially amplify the very small signals from the satellite and then down convert them to L Band to feed them to a nearby building housing the Modem Demodulator Read More...

Introducing DVB-S, 2, X with its 10 Improvements

Date posted: March 18, 2016

1. There are two Generations of the DVB-S standard. A) DVB-S: • Was developed from 1993-1997. • Defined by European Standard EN 300 421. • Just describes the physical link characteristics and the framing. • The overload transport stream delivery falls under MPEG-2 B) DVB-S2: • Was developed in 2003. • Defined by European Standard Read More...

Know More about DAMA & UHF SATCOM DAMA Principles

Date posted: March 17, 2016

DAMA (Demand Assigned Multiple Access) is a communication channel access technology that offers easy and proactive sharing of channel(s) among various users and networks. Technically, there could be thousands of satellite stationsin a given satellite network coverage area. DAMA, channels can be shared with or assigned to different users, as demanded by them.This is how Read More...

Features & Specifications of Raditek’s Block Upconverters BUC

Date posted: March 16, 2016

Block Up converters are used for up linking satellite signals. As the name suggests it converts the frequencies of lower bands to upper bands. The modern BUCs use phase-locked loop local oscillators, and they require a 10 MHz frequency external reference to maintain the accuracy of the frequency transmission. The BUC can convert the frequencies Read More...

Bandwidth Sharing with Dama Technology

Date posted: March 16, 2016

In the last 10-15 years traffic on Satcom Networks has ex-grown exponentially. Data services (Internet) are the major user of bandwidth followed by voice. Bandwidth is a scarce resource as it is limited by the Satellite capacity. The sharing of bandwidth is a primary focus area by network and communication provider. DAMA Defined DAMA (Demand Read More...

A Layman’s Guide in Understanding Broadcast Television

Date posted: March 8, 2016

Ever wondered how we get the signals on our television sets in high definition (HD)? Here is a basic understanding of the key elements. The first element that helps is the set-top box that contains the heart of DVB-S2 system (Digital Video Broadcasting – Satellite – Second Generation system). This technology is a standard established Read More...

Synopsis of Various Satcom Systems Offered by Raditek

Date posted: January 17, 2016

With the newer high Capacity Satellites the use and importance of satellite communication has grown to transport Digital information including radio and television signals, phone and high speed internet data. The devices used for accomplishing satellite communications have developed adding Ka band and High capacity satcom modems. Check out the following subsections that attempt to Read More...

Traits of a High Frequency Solid State Power Amplifier

Date posted: January 17, 2016

HF power amplifiers are designed to cover the HF Band 1.6 to 30 MHz used for worldwide short wave communications, They work with signals from an exciter of HR band Radio and amplify the CW or modulated transmit signals to ensure essential communications. Our High Power Amplifiers are a family of highly efficient, linear Class Read More...