Image Septambic key numbering.jpg thumb Steve Mann s septambic keyer custom molded to fit the hand, with one key for each finger, and three for the thumb. Image Twiddlerglog.jpg thumb A commercially manufactured keyer, the Twiddler 2. Image Keyergrip.jpg thumb A keyer for wearable computing, designed and built for making Mathematical photography lightvector paintings . Note the thumbwheel for cursor control and lightvector weight setting. The keyer is designed to hold a video screen below the keyer and a photographic flash lamp above the keyer . A keyer is a device for signaling by hand, by way of pressing one or more switches. Modern keyers typically have a large number of switches but not as many as a full size Alphanumeric keyboard keyboard typically between four and fifty. A keyer differs from a keyboard in the sense that there is no board the keys are arranged in a cluster. ref name IIP cite book title Intelligent Image Processing publisher John Wiley and Sons year 2001 ref A keyer may take the form of a single telegraph key for keying Morse code . In this use, the term to key means to turn on and off a carrier wave , typically. For example, it is said that one keys the transmitter by interrupting some stage of amplification with a telegraph key . Morse code was an early form ... various polyambic multiambic keyers, such as a pentambic keyer 5 keys, one for each finger and one ... computer keyer has no board upon which the switches are mounted. Additionally, by providing some other function such as simultaneous grip of flash light source and keying the keyer is effectively hands ... keyer http www.chordite.com Yet another one hand keyboard Do it yourself, wearable, one hand keyboard prototypes http electronicsusa.com mk36.html Wearable keyer suitable for QRP use leg mount accessory ... wearcam.org septambi How to make your own custom molded perfect fit keyer http chorder.cs.vassar.edu Spiff chorder keyer for daily wearable computer use Category Computer keyboards ... more details
Unreferenced date June 2010 Infobox software name Wax developer Debugmode operating system Microsoft Windows genre Video editing software license Freeware website http www.debugmode.com wax Debugmode Wax 2.0e is the current revision is a freeware video editor which can be used in a variety of fashions. Wax developed into a highly independent video compositing software with rotomate, a chroma keyer and light values chart. Below is a table of Wax changes and advantages class wikitable sortable Version Significant Changes Screen Shot 1.1 First version of Wax, made for integration with WinMorph, and is only able to create basic effects with WinMorph and other plugins such as fades, color effects and audio effects which were dropped in version 1.5 http videoinasnap.chuckengels.com images wax lg.jpg Wax 1.1 as a plugin 1.5 Debugmode began to experiment with features, and began a strain of effects, close to releasing the Chroma Keyer Effect http i.ytimg.com vi LzFiNSJkqjc 0.jpg Wax 1.5 within Sony Vegas video editor Category Free video software ... more details
Dr. Ronald Stordahl is the chief executive officer of electronic component distributor Digi Key Corporation, located in Thief River Falls, Minnesota . It was Dr. Ronald A. Stordahl s interest in ham radio that provided the springboard for what has become Digi Key Corporation today. While in college he assembled and began selling a digital electronic keyer kit for sending radiotelegraph code for ham radio operators. It was called the Digi Key. After obtaining his PhD in Electrical Engineering from the University of Minnesota , Stordahl returned to his hometown of Thief River Falls. The keyer kit was discontinued and he began selling electronic components in 1972. The Digi Key Keyer is long gone, but Digi Key Corporation has become one of the fastest growing electronic component distributors in the world. The privately held company has annual sales of over 1.5 billion and employs over 2,400 people. Stordahl founded the company in 1972, beginning with a single employee. Ronald Stordahl holds the amateur radio callsign AE5E. References http www.digikey.com us en Info company history.html?WT.z ref page id sitemap history http www.digikey.com us en Info company profile.html?WT.z ref page id sitemap profile Persondata Metadata see Wikipedia Persondata . NAME Stordahl, Ronald ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Stordahl, Ronald Category American chief executives Category Living people Category University of Minnesota alumni Category Year of birth missing living people US CEO stub ... more details
Iamb , iambus , or iambic may refer to wiktionary TOC right Meter and poetry Classical poetry and quantitative verse Iamb foot Choliamb Iambic trimeter Iambus genre Accentual syllabic and syllabic verse Iamb foot Iambic trimeter Accentual syllabic iambic trimeter Iambic tetrameter Iambic pentameter Iambic hexameter , or the alexandrine Iambic heptameter , or the fourteener Other uses Iamb band Iambic keyer Iambic Productions Ill2 Dionysius Iambus ca Dion s I mbic de Dionysios Iambos , grammarian See also Iambe Disambig ... more details
Infobox software name Adobe Ultra logo File Adobe Ultra.png 64px Adobe Ultra CS3 Icon screenshot File Adobe Ultra Screenshot.gif 250px caption Adobe Ultra CS3 on Windows XP developer Adobe Systems latest release version CS3 3.0 latest release date release date 2007 07 02 operating system Microsoft Windows Windows genre Video editing software license Proprietary software Proprietary website http www.adobe.com ap products creativesuite production ultra Adobe Ultra Home Page Adobe Ultra is a discontinued Chroma key vector keying application, helping produce blue screen green screen effects for video although the background can actually be any color . Ultra performs complex image analysis to produce high quality chroma key effects in less than ideal lighting environments. Ultra also included virtual set technology, which allows the keying of a subject into an animated virtual 3D environment. Ultra was previously known as Serious Magic Ultra Key , and was acquired when Adobe purchased Serious Magic Inc. in 2006. Unlike many of the other applications in the Adobe Creative Suite , Adobe Ultra only runs on the Windows operating system . Incorporation into other products Ultra as a standalone application was distributed with Adobe Creative Suite 3 released March 2007 but noticeably absent from CS4 and CS5. After CS3, the keyer from Ultra was integrated into two other Adobe products Visual Communicator 3, and Premiere Elements. ref name VideoRoad Adobe Blogs The Video Road What About Ultra, http blogs.adobe.com VideoRoad 2008 09 what about ultra.html ref Adobe Visual Communicator 3 had the full vector keyer control of Ultra built into it, along with some simplified virtual sets. The vector keyer could also be activated for live footage, allowing a single computer to key 3 cameras, display different backgrounds for each camera, and stream the result out live to the internet using Flash video . ref name VideoRoad Adobe Premiere Elements 7 provided a new feature called VideoMerg ... more details
achieve sending speeds in excess of 40 words per minute with a bug. Like the bug, the electronic keyer ... memory, if the operator s keying action is about one dit ahead of the actual transmission, the keyer s output for each letter will be machine perfect. An iambic keyer sports dual paddles, one for dit .... The iambic function alternating dits and dahs are created with an electronic keyer by squeezing ... a single paddle key is used with an electronic keyer, continuous dits are created by holding the dit ... from a logic error in an early iambic keyer. In mode B, dots and dashes are produced as long ... competent keyer designs have the capability of selecting the desired keyer mode. If forced to use a keyer with an unaccustomed mode, the user must revert to single paddle mode in which both paddles ... more details
Refimprove date March 2008 Infobox Company company logo File Digi Key logo.png Digi Key Logo company name Digi Key Corporation company type Electronic Component Distributor foundation 1972 founder Executive Officer Dr. Ron Stordahl location Thief River Falls , Minnesota industry Electronics revenue 2011 1.5 billion number of employees 2,000 homepage http www.digikey.com Digi Key is the fourth largest electronic component distributor in North America and a broad line distributor of board level components. It ranks as the 8th largest electronic component distributor in the world. Ronald Stordahl founded the company in 1972 and its name was derived from the digital electronic keyer kit that he developed and marketed to amateur radio enthusiasts. ref Rako, P 2006 . Voices Digi Key Growing up privately , EDN , 51 20 24 ref It was called the Digi Keyer Kit. Mark Larson, who joined Digi Key in 1976 as its general manager, has been its president since 1985. He has led the company from its initial focus on the hobbyist market to the expanded market it serves today. citation needed date June 2011 In 1995, Digi Key introduced its website that offers complete online commerce capabilities along with access to product inventory. Digi Key currently hosts 82 websites in eight supported languages. In only six years, Digi Key has moved from 16th largest to fifth largest among the more than 300 electronic component distributors in North America. According to their website, in 2007 EE Times conducted a survey in which engineers rated Digi Key 1 for Overall Performance for the 16th Consecutive Year. Digi Key is located in a single, centralized location in Thief River Falls , Minnesota, USA. Its facility measures convert 600000 sqft m2 and houses over 2,400 employees. Its product distribution center stocks over 500,000 products from over 470 manufacturers and ships to 170 countries worldwide. ref cite web title About DigiKey url http www.digikey.com us en info Company Profile.html access ... more details
Chording means pushing several keys or buttons simultaneously to achieve a result. Musical keyboards In music, more than one key are pressed at a time to achieve more complex sounds, or chord music chords . Computer Keyboards Chording, with a chorded keyboard or keyer allows one to produce as many characters, as a QWERTY keyboard , but with fewer keys and less motion per finger, and is thought to alleviate Citation needed date April 2009 or prevent Citation needed date April 2009 carpal tunnel syndrome . Pointers Mouse chording allows a user to use a two button mouse computing mouse , trackball , or touchpad as if it where a three button device. For example, in the Unix graphical user interface X11 , the middle button is used to Cut, copy, and paste paste text . Since Microsoft type mice have only two buttons, users of Unix type systems such as Linux and BSD chord the right and left buttons to paste text. Multitouch chording TipTapSpeech an application for the iPhone and iPad is a chord based text entry solution for touch screen computing. ref http www.tiptapspeech.com TipTapSpeech ref A GKOS keyboard Commercial devices GKOS chording keyboard application development for iPhone was started on the GKOS Google Group ref http groups.google.com group gkos browse thread thread 1f3e60a421bd7e67 GKOS Group ref on May 25, 2009. The application for iPhone became available on May 8, 2010, and a similar application for Android on October 3, 2010. Thumbs are used to press the keys that are located towards the sides of the screen, either a single key or two keys simultaneously. Douglas Engelbart, Valerie Landau, Robert Stephenson, Evan Schaffer, Eric Matsuno, and Cherif Algreatly filed a patent in 2010 for a chorded solution for multitouch screens. Citation needed date January 2012 References references See also Ergonomics Category Musical terminology ... more details
Image CleanFeed.png thumb 250px Generation of both Program and Clean Feed. The Clean signal has no graphics keyed over it. In television technology, clean feed is a term that describes a signal which has not come from the main output of the Video switcher , such as the output of a vision mixer before the downstream Keying graphics keyer stage the clean feed is identical to the main program output but without any captions keyed into it. The clean feed signal is used in sport production to allow different television station s to key its own digital on screen graphic image on a common signal, or in news broadcast ing to produce two or more different streams, each one with the same picture but in different languages. Modern production equipment can actually put different keys on multiple outputs, allowing them to go to the clean feed or not. The most sophisticated vision mixers or production switchers, according to the American nomenclature can generate a clean feed output for any of their Mix Effects ME bus. The term clean feed is also used to refer to backhaul broadcasting backhaul feeds of television programming sent via communication satellite or other transport such as a national fiber optic network sent from another TV station or remote television production truck on location, which does not carry any television advertisement s or break bumper s, or in some cases, lower third graphics or superimposed chyron text. See also Backhaul broadcasting Mix minus Category Film and video technology Category Television terminology it clean feed ... more details
Lead rewrite date November 2010 File Yaesu FT 901DM.jpg thumb FT 901DM The Yaesu FT 901 is a transceiver for operations in the 1,6 2 MHz 160m band 160m 3,5 4 MHz 80m band 80m 7 7,5 MHz 40m band 40m 14 14,5 MHz 20m band 20m 15 15,5 MHz WWV radio station WWV JJY timesignal receiving only 21 21,5 MHz 15m band 15m and 28 29,9 MHz 10m band 10m shortwave amateur radio HF bandsegments. Actually this radio is an upgrade of the FT 101 ZD line so its construction metal chassis, casing and die cast aluminum front is mainly equal as well as the solid state design combined with tubes in driver and final stage. The main difference however is that the FT 901 in its standard configuration is completely equipped with all plug in circuitboards. Besides the set has lots of features such as a memo system storing the used frequency on demand amateur radiosets were not yet equipped with built in memos before and a built in electronic Curtis keyer and handles the AM broadcasting AM , FM broadcasting FM , Continuous wave CW , SSB and FSK modes on the above mentioned bands. Its passband tuning is continuously variable from 300 2400 Hz. The FT 901 is for the mentioned amateur bands only and has no general frequency coverage. Its frequency readout is in both Analog signal analog and digital display modes. Intended to be an improved FT 101ZD the FT 901 line was produced by the Japan ese Yaesu Musen Corporation in the same timeline as the FT 101ZD line during 1979 1983 as FT 901D model starting at 1700 without AM CW filters, keyer, memo unit and DC DC converter FT 901SD model Qrp version with 10W output, without FM, AM CW filters, keyer, memo unit, DC DC converter and coolingfan FT 901DE model without FM, AM CW filter, memo unit and DC DC converter FT 901DM full options model VOX marker, speech processor, FM, AM CW filters, keyer, memo unit and DC DC converter Technical description The FT 901 all solid state receiver section is the single conversion type combined with Phase Locked Loop cir ... more details
Infobox Software name Autodesk Inferno, Flame and Flint logo screenshot caption developer Autodesk Media and Entertainment latest release version 2011 latest release date May 2010 operating system Silicon Graphics IRIX , Red Hat Enterprise Edition genre Compositing software license Proprietary software Proprietary website http usa.autodesk.com adsk servlet index?siteID 123112&id 10223720 Inferno, Flame and Flint is a series of compositing and visual effects applications made by Autodesk Media and Entertainment . They share the same software base, but differ mainly in hardware configuration. Traditionally Inferno ran on the Silicon Graphics SGI Onyx series, while Flame and Flint ran on the SGI Octane, or SGI Indigo2. In 1998 Gary Tregaskis design , Dominique Boisvert, Phillippe Panzini and Andre Le Blanc development and implementation won an Academy Award at the Scientific and Technical Academy Awards for Flame and Inferno. Release history class wikitable Version Hardware O S Release date Price Significant changes selected Inferno 2, Flame 5 ? IRIX ? ? RGBCMYK keyer Inferno 3, Flame Flint Effect 6 Onyx IR and Onyx 2 Inferno Octane SE and Indigo2 Flint O2 Effect IRIX December 1998 ? Modular keyer Inferno Inferno 4 br Flame 7 br Flint 7 br Effect 7 ref Cite web title Discreet Ships New Versions of Inferno, Flame, Flint and Effect date July, 25 2000 url http www.prnewswire.com news releases discreet ships new versions of inferno flame flint and effect 72505827.html ref Onyx2 Inferno Octane Flint O2 Effect IRIX 6.5.7 July 2000 ? ? Inferno 5 br Flame 8 br Flint 8 ref Cite web title Discreet Delivers inferno 5, flame 8 and flint 8 date January, 23 2003 url http investors.autodesk.com phoenix.zhtml?c 117861&p irol newsArticle&ID 374002&highlight ref ? IRIX January 2003 inferno 5 571,500 br flame 8 266,500 br flint 8 99,000 ? Inferno 5.5, Flame Flint 8.5 ? IRIX, Linux December 2003 IRIX , September 2004 Linux 119,990 Flint Linux turnkey ? Inferno 6 br Flame 9 br Flint 9 ref ... more details
Signal One was a manufacturer of high performance Single sideband modulation SSB and Continuous wave CW High frequency HF radio communications transceiver s initially based in St. Petersburg , Florida , USA . Image sigcx7.jpg thumb right 250px Signal One Model CX 7 circa 1970. Price when new US 2395 History The company started as a division of NCR Corporation NCR in Florida . A key executive was Dick Ehrhorn, ham callsigns W4ETO and W0ID. Beginning in the 1960s with the Signal One CX7, S1 , as they were called the company made radios that were priced well above the competition and offered many advanced features for the time, ref name Virtual Signal One Radio Museum http www.wa3key.com sigone.html Virtual Signal One Radio Museum ref such as passband tuning, broadband transmission, dual receive, built in Telegraph key IAMBIC keyer, electronic digital read out, solid state electronics solid state design, QSK and RF clipping. A Signal One radio was said to be a complete high performance, station in a box. ref name Virtual Signal One Radio Museum While marketed to the affluent radio amateur, it has been suggested that the primary market for Signal One, like Collins Radio Collins , was military, State Department, and government clandestine spy communications. Although prized for the performance and advanced engineering, Signal One s products did not sell as well as hoped, and the company gradually fell on hard times. From the 1970s though the 1990s, every few years, Signal One was Spin out spun off , sold, and resurfaced at another location. ref name Virtual Signal One Radio Museum Collectors The surviving Signal One products are sought after and actively collected. These include the CX7, CX7A, CX7B, CX11 and Milspec models. The last Signal One radio was a re engineered ICOM IC 781. Notes references See also Collins Radio Icom Incorporated Icom Vintage amateur radio External links http www.hamanuals.com S1 links.htm www.hammanuals.com Links to Signal One resources on the ... more details
Notability date August 2010 notability Companies date May 2010 Infobox Company company name Echolab Inc. company logo Missing image removed Image Echolab logo.jpg 200px Echolab Logo company type Private company Private foundation 1974 location Billerica , Massachusetts , USA key people Nigel Spratling , President num employees 100 industry Video and Audio Technology for Broadcast and Film products Video switcher Video Switchers br Virtual Studios br Frame synchronizer Frame Synchronizers homepage http www.echolab.com www.echolab.com Echolab was a company that designs and develops vision mixer video production switchers for digital media markets, such as broadcasting, live production, and events. The company s products include Television standards conversion standards and format conversion live production Film transition switching Filmmaking Production production and Filmmaking Distribution and exhibition distribution of digital media in a variety of Moving image formats formats . In April 2008, Echolab presented its new Overture series of switchers, as well as several optional enhancements. Among these enhancements were MultiPlayMD, a panel controlled instant replay device and winner of TV Technology s STAR Award for Superior Technology. Additionally, the Standard definition television SD HDTV HD capable MegaKeyMD Video server clip player , Wipe transition mixer , and Digital Video Effects keyer provides support for playout of video and animated graphics. Echolab s Conductor control integration system incorporates touchscreen technology to enhance on air control by automating complex sequences and switching tasks critical to professional quality production. In May, 2010 Echolab has lost its funding and has ceased doing business ref http broadcastengineering.com news echolab switches off 20100521 Broadcast Engineering ref . Two and a half months after going out of business, EchoLab has been acquired by Blackmagic Design ref http www.tvtechnology.com article 104726 TV ... more details
File Yaesu FT 450.jpg thumb right Yaesu FT 450 powered off The Yaesu FT 450 is an entry level amateur radio transceiver made by Yaesu brand Yaesu , the Amateur Radio Division of Vertex Standard . It transmits on eleven Amateur radio bands amateur bands , from 160 meters through 6 meters. It also has a receive frequency coverage of 30 kHz to 56 MHz. The FT 450 features an Digital Signal Processing IF DSP width, notch filter , contour and noise blanker functions , which is uncommon in this price range. Feature Overview Transmit Frequency Coverage 160 6 Meters Receive Frequency Coverage 30 kHz 56 MHz Power Output 100 watts 160 6 Meters Operating Modes Sideband USB , Sideband LSB , Continuous wave CW , Amplitude modulation AM , Frequency modulation FM 400 MHz built in Digital Signal Processing IF DSP Built in Electronic Keyer Multi Color LCD Multi function Display Bar Graph Metering Built in TCXO 1 PPM hour after warmup AGC Fast Slow Auto Off Selection IF WIDTH & SHIFT, CONTOUR, Digital NR, Manual Notch Filter Dedicated Data Jack for FSK RTTY Optional Internal Antenna Tuner ATU 450 Optional Carry Handle Built in CTCSS User functions configurable by menu Digital voice announcement of frequency, mode and S meter Clarifier Adjustment 500 Regular Memories Two Voice Memories CW Beacon Function up to 118 characters 10 kHz Roofing filter References reflist refbegin cite journal title Yaesu FT 450 HF and 6 Meter Transceiver Product Review journal QST publisher ARRL location Newington, Connecticut date December 2007 refend External resources http www.yaesu.com indexVS.cfm?cmd DisplayProducts&ProdCatID 102&encProdID 870B3CA7CFCB61E6A599B0EFEA2217E4&DivisionID 65&isArchived 0 Yaesu.com website Product description by manufacturer FT 450 HF Transceiver http www.eham.net reviews detail 6583 eHAM.net Yaesu FT 450 reviewed by amateur radio operators http www.rigpix.com yaesu ft450.htm RigPix Photos of Yaesu FT 450 http rigreference.com rigs view 4298 Yaesu ... more details
Infobox software name Autodesk Toxik title Autodesk Toxik logo File screenshot File caption collapsible author developer Autodesk Media and Entertainment released 2007 Start date YYYY MM DD df yes no discontinued latest release version 2012 included with Autodesk Maya latest release date Start date and age YYYY MM DD df yes no latest preview version latest preview date Start date and age YYYY MM DD df yes no frequently updated DO NOT include this parameter unless you know what it does programming language operating system Linux and Microsoft Windows ref name Studio Daily http www.studiodaily.com main technology pvr Autodesk Toxik 2007 6387.html Autodesk Toxik 2007 Studio Daily Accessed October 17, 2010 ref platform size language status Part of Autodesk Maya genre license Proprietary website http autodesk.com http autodesk.com Autodesk Toxik is an interactive node based, film compositing solution developed by Autodesk Media and Entertainment , a subsidiary of Autodesk Autodesk, Inc. ref Autodesk, Inc. http download.autodesk.com us toxik Toxik2010OnlineHelp index.html?url WS73099cc142f48755 385a98b0121d1bb015f 47f7.htm,topicNumber d0e191 Toxik About Toxik Accessed October 17, 2010 ref History Autodesk Toxic is a film compositing software which was released in 2007. ref name Studio Daily Features Autodesk Toxik includes several powerful features. The most noticeable of these new features is a collaboration based work flow. Licenses were sold in packages of three to allow users to take full advantage of the collaboration features. Also, Toxik includes a dynamic page zooming zoom system that allows faster processing when working with larger video format s. Toxik also includes a paint module, motion path animation, and a Master Keyer module. Toxic runs around the idea of Modules, which are small extensions that allow Toxik to be extremely adaptive. In the 2007 release, users were allowed to choose which modules they wanted to include and use. From Toxik 2008 and on, all t ... more details
Infobox lake lake name Liberty Reservoir image lake Libertydam.jpg caption lake image bathymetry caption bathymetry location Baltimore County, Maryland Baltimore Carroll County, Maryland Carroll counties, near Eldersburg, Maryland coords coord 39.417895 N 76.878891 W type waterbody region US display inline,title type reservoir inflow Patapsco River outflow Patapsco River catchment basin countries United States length width area depth convert 59 ft m abbr on max depth convert 144 ft m abbr on volume convert 43 e9USgal m3 residence time shore elevation convert 410 ft m abbr on dam crest islands cities The Liberty Reservoir is a reservoir in the suburbs of Baltimore, Maryland . It is owned by the City of Baltimore Department of Public Works, but is located outside of the city, and it divides Baltimore County Baltimore and Carroll County, Maryland Carroll Counties . History This 1,225 hectare 3,100 acre was the former site of the town of Oakland Mills, and the Melville Woolen Mills. The land was purchased from the Melville family in the 1930s. A rumor swirled that Oakland would be destroyed, but few left. An announcement was finally made in 1942 that a reservoir was to be built, but reality hit in 1947, when the timber cutters came to town. In 1951, the government bought the Melville Woolen Mill for 1.5 million. It bought the farms and houses that were in the way of the lake. The tenant workers were forced to leave. The mill was dynamited, although its five story shell remained. It took years for the water to rise high enough to cover the crumbling walls. Over several years, the natural springs, tributaries, and other water sources filled in where Oakland Mills once stood to create the reservoir. Water overflowed the crest for the first time on February 6, 1956. Physical Habitat Description The North Branch of the Patapsco River is the primary tributary that feeds the reservoir. Other tributaries include Beaver Run, Keyer s Run, Prugh Run, Morgan Run, Middle Run, Locust ... more details
of one button. After the P P section, there is another keying stage called the downstream keyer ... before the DSK keyer is called clean feed TV clean feed . After the DSK is one last stage that overrides ... channels. The D subminiature ports interface with other equipment such as the keyer, tally, and control ... more details
source keyer keyset designs are available The pickey ref cite web url http cuddlepuddle.org adam ... users to avoid using the space bar. Keyer Multiambic keyers for use with wearable computers were ... wearable computer researchers and hobbyists. See also BAT keyboard Chording FrogPad Keyer Microwriter ... more details
SK Stop Keying not an imperative to the other person but rather a description of what the keyer is doing ... know not to expect any more messages but also B. letting the recipient know that the keyer remains ... keyer has nothing left to say and that both ends of the conversation and, therefore, the conversation ... more details
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