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Homepage Archive - January 2018 (page 2)

These archive pages are provided in order to make it easier for you to find items that you remember seeing on the RF Cafe homepage. Of course probably the easiest way to find anything on the website is to use the "Search RF Cafe" box at the top of every page.

Homepage Archive Pages

See Page 1 | 2 | 3 of the January 2018 homepage archives.

Friday 19

ConductRF D38999 Standard & Custom RF Solutions

ConductRF D38999 RF Coaxial Cable Solutions - RF CafeConductRF presents a wide selection of standard D38999 RF coaxial cable configurations. Off the shelf examples include: BMA to 20 GHz, SMPM to 60 GHz, Size #8 to 18 GHz, Size #12 Mil-Spec. Size #16 Mil-Spec. Cable choice include Low Loss Flexible and standard RG styles. Custom marking and also ruggedization coverings including Nomex weave available. Contact ConductRF today. Available for direct purchase through Newark Electronics ...

A Major Step Forward in Organic Electronics

Major Step Forward in Organic Electronics - RF Cafe"Researchers have developed the world's first complementary electrochemical logic circuits that can function stably for long periods in water. This is a highly significant breakthrough in the development of bioelectronics. The first printable organic electrochemical transistors were presented by researchers at LiU as early as 2002, and research since then has progressed rapidly. Several organic electronic components, such as light-emitting diodes and electrochromic displays, are already commercially available. The dominating material used until now has been PEDOT:PSS, which is a p-type material, in which ..."

Effective Radiated Power

Effective Radiated Power, May 1973 Popular Electronics - RF CafeEIRP - effective isotropic radiated power - is an important parameter when calculating both intentional and unintentional electromagnetic emissions. EIRP is a vector quantity that accounts for both power (magnitude) and 3-dimensional coordinates (direction). It includes antenna directivity that concentrates power in a particular direction rather than distributing it equally in all directions (e.g., isotropically). Effective radiated power factors in modulation type and power envelope shape as well. Knowing how to measure that quantities can make the difference between ...

Peregrine Semiconductor Is Now pSemi

Peregrine Semiconductor Is Now pSemi - RF CafeIt is with immense pride and excitement that I write to inform you of the next chapter for Peregrine Semiconductor and Murata. Effective today, 17 January 2018, Peregrine will operate under a new name, pSemi Corporation. pSemi will have the same experienced leadership team, but we will have a broader scope and an expanded product portfolio. When Murata acquired Peregrine in Deceember 2014, they kept the Peregrine brand name untouched. In the last few years, Murata has asked our team to extend our reach, increase our intellectual property ...

Analog Devices Intros Active Mixer w/7 GHz Bandwidth & 20 dBm OIP3

Analog Devices Intros Low Power Active Mixer with 7 GHz Bandwidth & 20 dBm OIP3 - RF CafeAnalog Devices announces the LTC5562, a low power, high performance active double-balanced mixer, capable of 50 Ω matching over a very wide frequency range of 30 MHz to 7 GHz. This versatile mixer can be used in either frequency upconversion or downconversion applications, with outstanding conversion gain of 2 dB. The device runs on a single 3.3 V supply rail, drawing 40mA nominal operating current. If lower power consumption is needed, the mixer can be configured to operate as low as 15 mA, supporting a wide ...

Gyroscopes Lead Scientists to Unusual State of Matter

Gyroscopes Lead Scientists to Unusual State of Matter in Disorganized Structure - RF Cafe"You don't have to be perfectly organized to pull off a wave, according to scientists. Using a set of gyroscopes linked together, physicists explored the behavior of a material whose structure is arranged randomly, instead of an orderly lattice. They found they could set off one-way ripples around the edges, much like spectators in a sports arena - a 'topological wave,' characteristic of a particularly unusual state of matter. Using a set of gyroscopes linked together, physicists explored the behavior of a material whose structure is arranged randomly, instead of an orderly lattice. They found they could set off one-way ..."

Thursday 18

Radiocrafts Intros Sigfox Module with Integrated Sensor Interfaces

Radiocrafts Intros Sigfox Module with Integrated Sensor Interfaces - RF CafeRadiocrafts AS, a leading provider of RF modules and wireless connectivity solutions, announced today two new Sigfox modules, both with integrated sensor interfaces. The new modules are ideal for making a Low Power Wide Area Network (LPWAN) with wireless sensors. The proven Sigfox modem is complemented by a dedicated interface for a number of industrial and environmental sensors. The sensors are carefully selected to enable customers to build complete sensor nodes by just adding the sensor, an antenna ...

Crystal Filters

Crystal Filters, April 1969 Electronics World - RF CafeAs with most technologies that have been around for decades, the fundamentals of crystal filters have not changed with time. Materials and methods have changed, of course, but the equivalent lumped element model (using resistors, capacitors and inductors) of a crystal filter is essentially the same today as it was in 1969 when this article appeared in Electronics World magazine. Open a first semester electronics circuits textbook and the chapter on crystals will look much like this piece by Mr. Robert Kent, of Damon Engineering. The use of crystal had a profound impact on filter design because their extremely high "Q" factors ...

Please Welcome Lotus Systems as a New Sponsor!

Please Welcome Lotus Systems as a New Sponsor!Lotus Systems is a supplier of high performance RF modular system components operating up to 20 GHz. Design, manufacture, and test is controlled from from their Middlesex, MA, facility. Lotus offers connectorized modules for amplifiers, attenuators, bias-Ts, filters, prescalers, multipliers, oscillators, limiters, and RF cases for your custom designs. A rugged lab-quality baseplate for mounting is available. Lotus can provide custom extension of standard products, custom designs for specific applications and prototyping for your new products. Please visit Lotus Systems today to see how they might help you ...

2018 IEEE Summit on Communications Futures

2018 IEEE Summit on Communications Futures - RF CafeLive Streaming Starts: 1:30 pm EST. "The 2018 IEEE Summit on Communications Futures will be streamed live throughout the day on January 19, 2018 from Honolulu, Hawaii. You'll be able to view presentations from our impressive list of speakers as they occur for absolutely free-- from the convenience of your home or office! The program will feature this impressive group of top leaders and innovators as they share their insights on the future of communications technologies related to 5G, Advanced Optical ..."

Anatech Electronics Product Update January 9, 2018

Anatech Electronics Product Update January 9, 2018 - RF CafeAnatech Electronics offers the industry's largest portfolio of high-performance standard and customized RF and microwave filters and filter-related products for military, commercial, aerospace and defense, and industrial applications up to 40 GHz. Anatech has introduced three new filters for your convenience: a 1.5 MHz highpass filter with BNC-type connectors, a 2700 MHz / 5400 MHz / 8100 MHz triplexer filter with N-type connectors, and a 112.5 MHz cavity bandpass filter with F-type connectors ...

Atomic Dynamics of Everlasting Electric Fields

Atomic Dynamics of Everlasting Electric Fields - RF Cafe"Scientists from Duke University and Oak Ridge National Laboratory have collaborated on a project that seeks to determine the atomic mechanisms of a very rare type of electric field. Everlasting electric fields have not been well-researched at this point, but the findings in this new project are an impressive step forward. Researchers hope to develop new materials that have similar properties, which could be used in a variety of applications. Scientists uncovered the atomic properties by ricocheting neutrons off the atoms of yttrium manganite. The material was heated to 3,000° Fahrenheit ..."

Wednesday 17

Skyworks FEM for Bluetooth Low Energy / 802.15.4 / Thread / ZigBee

Skyworks Front-End Module for Bluetooth Low Energy/802.15.4/Thread/ZigBee - RF CafeSkyworks Solutions has introduced the SKY66114-11, its latest 2.4 GHz fully-integrated RF front-end module (FEM) supporting Bluetooth® Low Energy / Bluetooth® Smart, 802.15.4, Thread and ZigBee® applications. This high performance device is the world's most efficient and longest range solution for Internet of Things (IoT) applications, especially within the connected home, wearables and industrial markets. The FEM is ideal for voice assistants, sensors, beacons, smart watches, thermostats, wireless cameras/headphones, medical pendants, hearing aids ...

Arduino Mega 2560 Project Ultimate Starter Kit

Elegoo Arduino Mega 2560 Project Ultimate Starter Kit - RF CafeThese Arduino experimenter sets are big boy (and girl) versions of those basic electronics kits with the spring terminals and an assortment of Rs, Ls, Cs, a switch, and light bulb or two. This particular kit includes more than 200 pieces, including the Arduino processor board for $60 - an amazingly good deal (lesser kits start at around $35). A huge variety of add-on sensors and functional modules are available at dirt cheap prices. Here is a set of 37 modules such for $29. You can also get application-specific Arduino kits like this one for RFID development or for a smart robotic car. There's no time like the present to get started.

Tips for Technicians

Tips for Technicians, May 1969 Electronics World - RF CafeDid you know that Mallory, the well-known capacitor maker, at one time was at the forefront of solid state rectifier diodes? Not me, at least before seeing this infomercial from a 1969 Electronics World magazine. I know that they made selenium rectifiers that replaced many application which formerly required vacuum tubes. This installation of Mallory's "Tips for Technicians" is one of many run for the benefit of service shop guys who needed to keep abreast of changes in technology. Note the admonition at the end: "Don't forget to ask 'em - 'What else needs fixing?'" ...

Mini-Circuits' January 2018 Product Announcement

Mini-Circuits January 2018 News & Product Highlights - RF CafeMini-Circuits announces in its January 2018 product lineup the availability of four new devices in its lineup of RF and microwave components. Included are a MMIC 2-way 90° hybrid covers 5 to 11 GHz, a broadband 75 Ω surface-mount transformer covers 10 to 1400 MHz, a wideband MMIC balun covers 5500 to 13500 MHz in 3 x 3 mm QFN package, and an ultra-wideband coaxial LNA matched from 0.5 to 15 GHz ...

Earthquake-Causing Meteor in Michigan Sky

Earthquake-Causing Meteor in Michigan Sky - RF Cafe"Residents of southeast Michigan were left a bit shaken Tuesday night after a big bright flash lit up the sky and the ground beneath them shook. A flying saucer? No. A shooting star? Not quite. The National Weather Service eventually solved the mystery, tweeting 'USGS confirms meteor occurred around 8:10 pm, causing a magnitude 2.0 earthquake.'" The science-challenged reporter (as are most) got the part about it not being a shooting star wrong, though. A 'shooting star' is a meteor, although it is not a star ...

Science Milestones in the History of Radio Event Under Way

Science Milestones in the History of Radio Event Under Way - RF Cafe"A year-long operating event, 'Science Milestones in the History of Radio,' is under way, sponsored by the Italian Amateur Radio Association (ARI) Fidenza Radio Club. Each month will highlight individuals who laid the foundations - theoretical and practical - for radio science. Awards are available for participating stations. Each month, a commemorative station with a distinctive call sign will be on the air featuring an individual  with a role in the history of wireless communication. During January, II4MXW is active, honoring the contributions of James Maxwell ..."

Tuesday 16

Please Thank Anatech Electronics for Continued Support of RF Cafe!

Anatech ElectronicsAnatech Electronics manufactures and supplies RF and microwave filters for military and commercial communication systems, providing standard and custom RF Anatech Electronics RF Filtersfilters, and RF products. Standard RF filter and cable assembly products are published in their website database. Custom RF filters designs are used when a standard cannot be found, or the requirements dictate a custom approach. Please take a moment to visit Anatech's website to see how they might be able to assist with your current project ...

Intel's 49-Qubit Chip Shoots for Quantum Supremacy

Intel's 49-Qubit Chip Shoots for Quantum Supremacy - RF Cafe"Intel has passed a key milestone while running alongside Google and IBM in the marathon to build quantum computing systems. The tech giant has unveiled a superconducting quantum test chip with 49 qubits: enough qubits to possibly enable quantum computing that begins to exceed the practical limits of modern classical computers. Intel’s announcement about the design and fabrication of its new 49-qubit superconducting quantum chip, code-named Tangle Lake, came during a keynote speech by Brian Krzanich, Intel's CEO, during ..."

Wartime Solder

Wartime Solder, September 1942, Radio-Craft - RF CafePrior to the big push for leadless solder in the 1990s, probably 99% or more of the solder used by industry, tradesmen, and hobbyists contained lead. The 60/40 Sn-Pb (and 63/47) alloy, both with and without a rosin or acid core, was used for electrical work, electronics, plumbing, copper guttering, radiators, and many mechanical assemblies made of steel, brass, copper, tin, etc. Between World War I, "The War to [Not] End All Wars," and World War II, the electronics industry exploded in growth. All realms of society and government became utterly dependent on products assembled using solder. Both tin and lead were abundantly available ...

Silicon Nanowire Springs Stretch, Keep Electrical Properties

Silicon Nanowire Springs Stretch, Keep Electrical Properties - RF Cafe"In a paper titled 'Deterministic Line-Shape Programming of Silicon Nanowires for Extremely Stretchable Springs and Electronics' published in the Nano Letters, an international team of researchers from Nanjing University, Peking University, and CNRS-Ecole Polytechnique has demonstrated a new route to designing silicon-based flexible electronics in a scalable way. Rather than starting from Si wafers cut-out from drawn silicon ingots, they describe in their paper a nanoscale-version of the crystal-pulling methods used to grow silicon ..."

Saelig Intros Compact 6 GHz USB RF Vector Spectrum Analyzer

Saelig Introduces Compact 6 GHz USB RF Vector Spectrum Analyzer - RF CafeSaelig Company announces the availability of the Triarchy Technologies VSA6G2A Vector Spectrum Analyzer - an economical USB RF tool that plugs into the USB port of a PC and is controlled with the provided PC application software. It offers almost all of the functionality of a benchtop spectrum analyzer. Its frequency range of operation is from 100 Hz to 6.2 GHz, with an amplitude measurement range of -140 dBm to 24 dBm. The RBW (resolution bandwidth) range is from 0.2 Hz to 10 MHz and the noise level (DANL) is as low as -140 dBm. The VSA6G2A is very compact (4" x 1" x 1") and easy to use. The software user ...

Quantum Radio for Communicating in Problematic Environments

Quantum Radio May Offer New Twist on Communicating in Problematic Environments - RF Cafe"Researchers at the National Institute of Standards and Technology (NIST) have demonstrated that quantum physics might enable communication and mapping in locations where GPS, cell phones, and radio is not reliable or don't work at all, such as indoors, in urban canyons, underwater, and underground. NIST announced the technology advance on January 2. The technology may have marine, military, and surveying applications. The NIST team is experimenting with very low frequency (VLF) digitally modulated magnetic signals ..."

Monday 15

Someone Is Already Stealing Panels from China's New Solar Road

Someone Is Already Stealing Panels from China's New Solar Road - RF Cafe"China has been leading the world in construction of solar energy plants, building dozens of new solar farms over the past few years. In addition to building standard solar farms, the country has also been experimenting with more innovative ways to draw energy from the sun. Recently, the city of Jinan built China's very first solar road, which lasted about a week until someone stole it. The road opened on December 28, and on January 2 an inspection team noticed a piece of the road was missing. The piece was small, measuring only 6 inches wide ..."

Crystals for CB & Ham Communication

Crystals for CB & Ham Communication, March 1973 Popular Electronics - RF CafeAccording to author R.R. Freeland, manufacturing processes for radio-quality manmade crystals saw major improvements toward the end of World War II. At the time, the process was highly manual-intensive, as can be seen in this really nicely done 1940s video titled "Crystals Go to War." Prior to the use of crystals as frequency-determining devices, inductor-capacitor (LC) tank circuits were the dominant configuration. There were actually other frequency-determining schemes like spark gaps and even vibrating mechanical reeds. As you might guess, anything less than ...

Webinar: Are You Ready for 5G? - Unlocking 6 Key Measurements

Webinar: Are You Ready for 5G? Unlocking 6 Key Measurement Challenges for 5G Radio Validation - RF Cafe
Are You Ready for 5G? Unlocking 6 Key Measurement Challenges for 5G Radio Validation. Date: January 24, 2018 Time: 1pm ET. Abstract: "The 5G New Radio era officially begins with the publication of 3GPP Release 15 in December 2017, which defines a 5G overlay onto the existing 4G networks. As 5G and emerging wireless standards continue to evolve, wireless designers need flexibility to troubleshoot leading-edge issues in a variety of spectrum bands as well as high performance for more rigorous R&D validation. Join Daren McClearnon, 5G ...

Antenova High Performing 4G/LTE Diversity Antennas for Small PCBs

Antenova's New High Performing 4G/LTE Diversity Antennas for Small PCBs at CES - RF CafeAntenova Ltd, manufacturer of antennas and RF antenna modules, is showing a brand new pair of high performing 4G/LTE antennas which are suitable for PCBs as small as 60mm, at the consumer electronics show CES. The two antennas can also be used in 3G and MIMO applications. The two antennas are similar - the difference being that Inversa is built for the USA market while Integra is for European and Asian markets. Both antennas are available in left and right versions to provide more options for placement on the PCB, and can be used ...

Semiconductor Blocks Heat Transfer and Preserves Conductivity

Semiconductor Blocks Heat Transfer and Preserves Conductivity - RF Cafe"Unique thermoelectric properties in cesium tin iodide could reduce heat buildup in electronic devices. A collective rattling effect in a type of crystalline semiconductor was discovered to block most heat transfer while preserving high electrical conductivity - a rare pairing that could reduce heat buildup in electronic devices and turbine engines. The traits were discovered in a class of materials known as halide perovskites, which are also considered promising candidates for next-generation solar panels ..."

Sunday 14

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines January 14, 2018At least 10 clues with an asterisk (*) in this technology-themed crossword puzzle are pulled from this past week's (1/8 - 1/14) "Tech Industry Headlines" column on the RF Cafe homepage (see the Headline Archives page for help). For the sake of all the avid cruciverbalists amongst us, each week I create a new technology-themed crossword puzzle using only words from my custom-created related to engineering, science, mathematics, chemistry, physics, astronomy ...

Friday 12

Comsat Laboratories Needed Electronic Technicians

Comsat Laboratories Needed an Electronic Technicians, March 1969 Electronics World - RF CafeFor the benefit of RF Cafe visitors, I have posted at no charge to companies many employment announcements for engineers, technicians, managers, and other technical positions. This electronics technician job was located at COMSAT Laboratories' (Communications Satellite Corporation) Washington, D.C., facilities since 1969 was prior to when the then-futuristic-looking Clarksburg, Maryland, campus was established. In the early 1990s, I worked as an RF design engineer for a few years at COMSAT Laboratories in Clarksburg. About a decade earlier, before earning my BSEE degree, I was working as an electronics technician at ...

Five Traits of Highly Effective Engineers

Five Traits of Highly Effective Engineers - RF Cafe"Many engineers possess unique traits such as initiative and eagerness to learn that help make them more successful in their careers. Effective engineers use their resourcefulness and initiative to find solutions. They identify problems, but they aren't limited to finding, fixing, and troubleshooting. They assess their current situations and continually seek to improve upon the status quo. They listen and learn. They ask for ideas, consider possible solutions, and then synthesize opinions and facts to create appropriate responses. Here are some essential qualities found in the most successful engineers ..."

ConductRF RF Test Cables for Field Engineers

ConductRF RF Test Cables for Field Engineers 1/11/2018 - RF CafeConductRF's SiteFlex Range of ruggedized Field RF Test Cables are designed specially for Field Test Engineers working in applications that require on site RF Testing. These cables are directly compatible with handheld network and spectrum analyzers. Options include DC-7 GHz through DC-50 GHz. The ruggedized construction includes anti-torque connectors that are firmly attached to the cables external armor. Crush resistant SF cable can withstand 1,200 lbs./sq.in. Methuen, MA, is ConductRF's principle U.S. manufacturing location ...

A Few More Electronics-Themed Comics

Electronics-Themed Comics, March 1969 Electronics World - RF CafeTGIF. If this past week has had you on edge, cheer up -the weekend's almost here. Once the final fire has been put out - or is at least contained - give yourself a break and enjoy these tech-themed comics from a vintage issue of Electronics World magazine. My favorite is the one on page 83 which is a takeoff on the well-worn comedy meme of the husband trying to sneak back into the house after a night out with the boys. This poor guy has been outwitted by his wife, who evidently has a bit of tech savvy working for her ...

QuinStar Technology Redefines State-of-the-Art Power

QuinStar Technology Redefines State-of-the-Art Power - RF CafeQuinStar Technology, a major supplier of millimeter-wave products for communication, announces that their R&D team has recently achieved a new milestone for GaN power amplifiers operating above 100 GHz. Using multiple GaN MMIC chips in a combiner network, we have achieved an output power of 3 W at 114 GHz. These GaN-based power amplifiers will soon be available for commercial applications ...

Hybrid 3-D Printing Method for Flexible Electronics

Hybrid 3-D Printing Method for Flexible Electronics - RF Cafe"It is often said that 'two heads are better than one;' for the Air Force, leveraging the expertise and insights of academia has led to advances in materials development and processing destined to be a game changer for the future fight. A collaboration between scientists at the Air Force Research Laboratory and Harvard University's Wyss Institute for Biologically Inspired Engineering has resulted in a new method for digital design and printing of stretchable, flexible electronics. The process, called Hybrid 3-D printing, uses additive ..."

Thursday 11

everythingRF Coverage of the Consumer Electronics Show (CES) 2018

everythingRF CES 2018 Coverage - RF CafeeverythingRF is providing up-to-the-minute coverage of events at the Consumer Electronics Show (CES) 2018. CES has been the launch pad for new innovation and technology for the last 50 years. The event is held in Las Vegas every year and is the world’s gathering place for everyone in the business of consumer technologies. It is where next-generation innovations are introduced to the marketplace. check in with everythingRF for news important to RF Cafe visitors ...

LG Rolling out Robots to Replace Hotel, Airport, Supermarket Workers

LG Rolling out Robots to Replace Hotel, Airport, Supermarket Workers - RF Cafe"A Korean tech giant on Thursday announced new robots that take aim squarely at the jobs of many services industry workers around the globe. There have long been predictions that advances in artificial intelligence and automation could end up eliminating millions of jobs over time, and tech companies have been testing robots to carry out a variety of tasks - from working in a pizza parlor to making deliveries that could greatly affect the services industry in the future. For its part, South Korean giant LG Electronics is the latest company that is ..."

Axiom Test Equipment New Year 2018 Specials

Axiom Test Equipment New Year 2018 Specials - RF CafeWhy rent test equipment from Axiom? Get test equipment without a capital budget. Tax benefits - the expense of a rental can be deducted immediately. Protects you against product obsolescence. Save time and money with quick delivery. Try equipment out before committing a lot of money to a purchase. Save time and money on maintenance costs (which are the responsibility of the rental company). Please contact Axiom today for your rental needs ...

4 Things to Consider Before Prototyping a PCB

4 Things You Must Consider Before Prototyping a PCB - RF Cafe"There's more to creating a PCB prototype than meets the eye. Do you have any PCB prototype successes or disasters that you would care to share with the rest of us? Many of my friends are involved in designing silicon chips in the form of ASICs, ASSPs, and SoCs, so if you say 'prototyping' to them, it means something very different to someone who wishes to create a prototype of a design that will be realized on a printed circuit board (PCB). In this column, we will consider four of the things that you really should consider before prototyping PCB ..."

Atomic Radiation: Types & Relationships

Atomic Radiation: Types & Relationships, May 1969 Electronics World - RF CafeNuclear energy was a big topic in the 1960s and 1970s as it was believed to be the future of electrical power generation for the world (at least up until the 3 Mile Island and Chernobyl incidents occurred). Ships and submarines were being powered by reactors that allowed them to run for months at a time without refueling, atmospheric emissions were practically zero, and the fuel source was abundant (albeit not simple to obtain). Medical and space applications were increasingly dependent on a greater knowledge of radiation and its effects on humans, plants, animals, and electronics. Many people by that ...

Antenova Compact Antenna Boosts GNSS Signals

Antenova Compact Antenna Boosts GNSS Signals - RF CafeAntenova Ltd, manufacturer of antennas and RF antenna modules, is launching a brand new compact, all-in-one active GNSS antenna, part number M20047-1, at the CES show in Las Vegas this month. It adds another option to the company's existing range of positioning antennas and modules. The M20047-1 operates in the 1559-1609 MHz bands, and offers designers a useful, space-saving option for small tracking devices. Its key features are the active components, the built-in LNA and filter, which act to boost ...

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    Kirt Blattenberger,

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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