Dvb-S2 Modulator & Block up Converters– Increasing the Quality of Transmission

The global environment has turned into a competitive era and to survive in the international market is a hard goal to accomplish, so as to compete with other networking organization you need to have the most advanced equipment’s that are reliable and trustworthy. Then you need to replace you setup with new advanced equipment with higher efficiency to achieve superior connectivity ratios with strong signal strength over the margin. At this point, Raditek is the most recommended company that you must opt for to enhance mobility and high performance. Raditek offers superior solutions with greater range and efficiency according to your utility rate.

Dvb-S2 Modulator: Improving Your Visualization 

Crafted for digital broadcasting, the latest view of visual is supported by the Raditek Dvb-S2 Modulator. It supports viable and military systems like IPSTAR, TSAT and WINDS. This highly customized modem felicitates sharing of data with speeds of 4Mbps to 1500Mbps. it is optimized to offer Ku, Ka and C band. Now you can truly advance your DTV signal by Raditek’s Dvb-S2 Modulator that is efficient in any condition and can provide IRD solution as well. It is purposely crafted to sustain DTV signal distributed through the satellite and is compatible with all different types of modems.

Block Up Converters: To Alter the Signal Frequency

These devices can alter radio signal to elevated frequency for satellite transmission. Block Up Converters make sharing of data possible from the transmitting base to the orbiting satellite. It operates like a viaduct among diverse transmitting radio transceivers that are positioned at alternate locations. This plays an optimum role in TV broadcasting and internet network providing. It converts the input 70 or 140 MHz signal to the 900 to 2100MHz L band that help in handling much data. 

If you are looking to buy this technology advanced equipment to serve your purpose, you can find the best ones at the Raditek web site www.raditek.com

A Deep Insight into Selecting the Best Amplifiers and Oscillators

For non technical people, it helps to be aware of the physics behind all the modern electronic appliances, having a basic knowledge will prove to be beneficial as it will help you select a suitable amplifiers and oscillators. Also knowing about the right place to get superior quality parts is equally essential. Moving on with this discussion, here is some valuable information about amplifiers and oscillators and their importance.

Discussing Dielectric Resonator Oscillators (DROs) 

Dielectric Resonator Oscillators have been designed to resonate at the radio waves in millimeter and microwave bands. The material used for the making of this equipment is non conductive and so, ceramic is a good choice. The electronic circuit that helps in producing the oscillating signals does so by converting Direct Current to Alternating Current.The resonator used in the dielectric resonator oscillator controls the generated frequency of the radio waves. The Raditek DRO’s are available for frequencies between 3 and 40GHz

SSPA Specialty

Modern Amplifiers are of many types depending on the purposes they are used for. If your required amplification is of Gigahertz (GHz) frequency then you should go for a Raditek solid-state power amplifier (SSPA). They use field-effect transistors (FET) to provide the necessary result. This type of amplifier is not only used in the telecommunication line but also finds its application in industrial, medical and scientific affairs. Thus, you can understand the utility ofRaditek’s Amplifiers covering frequencies between 10KHz and 100GHz.

Apt selection of the desired Amplifiers and Oscillators will ensure longevity of your electronic equipment. Moreover, if your business requires persistent use of Raditek’s amplifiers and oscillators, then your responsibility of choosing the best one increases even more.

Dvb-S2 Modulator and Dielectric Resonator Oscillators – Ensuring Smooth Satellite Functions

DVB-S2, the digital transmission system makes use of advanced modulation techniques. The latest coding is incorporated in order to perform best while approaching the theoretical limit for that system. This DVB-S2 modulation system generally specifies the use of QPSK modulation. It is equipped with various latest firmwares for channel coding and error correction. The Raditek DVB-S2 modulators deliver excellent compression to the satellite. You can find four primary modulation technologies used QPSK, 8PSK, 16APSK, and 32APSK.

This advance modulation system plays a vital role in achieving excellent performance while combatting high noise and interference. ACM that is Adaptive Coding and Modulation transforms them into a frame depending on the particular conditions of delivery path. The Raditek DVB-S2 modulator also gives access to the optional backward compatible modes. It permits DVB-S receivers to continue their operation in the presence of additional capacity and services.

The high definition video signal is encoded first with a high-level H. 264 codec. The DVB-S2 satellite combines it with other satellite signals and transmits it down to the customers dish LNBs(Low Noise Block Downconverters). Sometimes, a lot of satellite signals are combined together for developing full satellite channel lineups.

In the satellite network links, Dielectric Resonator Oscillators plays a vital role. The required spectral purity of a local Dielectric Oscillators in each LNB receiver is considered an important issue. If you want to get the best architectural solution, then an LNB with built in Dielectric Resonator Oscillators will be the best option for you. This system delivers the best performance with low-phase noise.

For best phase noise, a high Q Dielectric Resonator is utilized.a recent survey has proved that Dielectric Resonator Oscillators delivers the best performance in a low-noise block down converter for EHF band satellite terminals. Moreover, it makes the LNB receivers most suitable for DVB-S2 applications.

Signal Processing: Couplers, Power Splitters / Combiners and Quadrature Hybrids

Raditek offers the widest range and best performance Power Splitters, RF Directional Couplers and Quadrature Hybrids in the world with an extremely aggressive pricing structure.

Full Band and 25% narrow Bandwidth, multi-octave, Designed for Low Passive Intermodulation Distortion (PIM) Design capabilities from sub-MHz to 60 GHz Standard Octave Bands (2-4 GHz, 3-6 GHz, 4-8 GHz, 6-12 GHz, 9-18 GHz) Narrow Band to Multi Octave Band (ie 6-18 GHz) Stripline and lumped elements (ferrite) Low (< 1 watt), Medium and High power (up to 250 Watts) Coupling values available: 3, 5, 6, 7, 10, 15, 20 and 30 dB 

We can cross reference to virtually any competitor, usually with better performance, Coaxial standard and custom designs. Very low Loss and high isolation. Raditek has the lowest loss couplers 3, 6, 10, 20, 30 dB(others by request) Bi-directional coupler for all standard telecommunications bands. Splitters in 2, 4, 6, 8,16,32 way available 

Fast and Flexible,Specializing in short-runs and prototyping quantities. Fully-capable of handling larger volume orders.Typical design-to-delivery of new products within 6 weeks.On-site PCB prototyping equipment for rapid design-proving and short lead times.

All that you need to know about Dielectric Resonators Oscillators

A dielectric resonator is a non-conductive material, generally ceramic, specifically designed to resonate at radio frequencies including the millimeter wave bands. The manufacturing of the oscillator takes place by means of a high dielectric material that combines an electromagnet to resonate. The specific frequency of the resonator is selected by tuning the dielectric disc.

Approved Application of Dielectric Resonators

The Dielectric Resonator Oscillators (DRO) find widespread application in missile, electronic warfare, radar, military and commercial applications as well as in diverse satellite and Point to Point Terrestrial telecommunication systems> By employing suitable models of resonators Raditek makes DRO’s from 3 to 41GHz. Moreover, the dielectric resonators can be integrated as primary elements in sub-wavelength sensors, quantum dot emitters as well as in flat optical components. 

Impact of Resonant Nano Structures

The Resonant nano structures have been in the buzz over the last decade owing to its light controlling capacity, which is done either through enhancement of the electric field or by means of scattered radiations. The resonators also have huge positive impact on the miscellaneous applications, which includes sensing, biomedical spectroscopy, communications as well as in photovoltaic power generation. 

Phase Locked Dielectric Resonators Oscillators (PLDRO or more normally PLO).

Dielectric Resonators Oscillators can be phase locked to give precise Frequency stability either to a TCXO with 1 part per million  (1ppm) stability or to an OCXO with 10 part per billion  (10ppb) stability and exceptionally to a GPS Receiver 11 part per billion  (11ppb.  Raditek also makes PLO’s from 3 to 41GHz.

Using Phase Locked Oscillators(PLO) can be very useful for the military as well as for commercial applications in various fields. These devices use their superior stability technology for transmitting the radio waves at specific designated frequencies to avoid Interference.

Satcom modems have been popularized through the need for fast data communications for home and commercial use

We offer two types of Satcom SCPC Models: 

1. Dream/ Super Dream. and

2. Extreme.  (DamaREAdy Modem) with DAMA (Demand Assigned Multiple Access) and ABOD (AdaptiveBandwidth on Demand.

Extreme is our high end product that contains extensive BITE (built in test equipment), and supports many different interfaces

The DREAM / SUPER DREAM Modem: 

• Optional IF band support:(70M or L-band) 
• Data rates TPC or LDPC to 22MBPS and to 16QAM 
• In standalone mode, this is an IP based Routing, SCPC modem,. Can be used as either: 
• A Stand alone SCPC,/Point to Point modem or 
• DREAM Super : mini Hub modem,  or 
• super efficient DAMA (Demand Assigned Multiple Access) based SCPC modem. With ABOD) 
• Multiple STAR or MESH networks 
• Central network status display, spectrum analyzer display etc at the DAMA control hub.

EXTREME Advanced SCPC Modems to 64QAM/155Mbps.   

Options include: IP only, to 4 x E1 per carrier or 3 x E1 and IP, DVB-S2 and extensions, LDPC+ codes and SIMU-Carrier(similar to paired carrier). 

• EXTREME MODCOD options: 18KB to 155 Mbps, to 64QAM, LDPC+ (optional lowest latency, lowest Eb/No or best compromise.) 
• To 4 x E1/T1, Drop and Insert mux. 
• SIMU-carrier (2 carriers share the same uplink and downlink frequency) 
• EXTREME: includes ACM. Option (Adaptive Coding and Modulation) with DVB-S2 and extensions 
• EXTREME DVB-S2 Modulator, DVB-S2-/ACM, to 16APSK. (including IP/DVB-S2 encapsulation) available 
• BITE (modems include extensive Built In Test Equipment), eg Carrier under Carrier (real time, 24/7 interferer analyzer, monitor and alarm), 
• Bit Error rate (BERT), Spectrum analyzer etc 
• 4G backhaul support  ( needs a special accelerator)  
• Important for ANY satcom backhaul: “Standard IP accelerator will not work with 4G) 
• 1+1; 1+N, Redundancy 
• Multi IF band support:(70M/140MHz and L-band) 
• LDPC/BCH, TPC FEC options 
• Terrestrial interface options including Ethernet: EIA-530, G.703 (balanced & unbalanced), OC3, STM-1,   
• Serial LVDS, ASI, HSSI, Quad E1 mux