DST) Ɣ Press and Hold [ RCC ] Button for 8 Seconds to Disable the Reception

Total Page:16

File Type:pdf, Size:1020Kb

DST) Ɣ Press and Hold [ RCC ] Button for 8 Seconds to Disable the Reception Suitable mode: C8458B-PD15164M(DCF/MSF/WWVB/JJY) Size: A4 2015.4.20 10 9 1 9 1 8 8 2 7 2 7 RADIO CONTROLLED CLOCK 3 6 3 6 WITH TEMPERATURE AND HUMIDITY Model: C8458B 4545 USER MANUAL WWVB version JJY version Suitable mode: C8458B-PD15164M(DCF/MSF/WWVB/JJY) Size: A4 2015.4.20 2 Alarm time mode 1 1. Alarm time 3 2. Alarm icon/Alarm on 3. Alarm mode indicator 10 9 1 9 1 8 8 2 7 2 7 RADIO CONTROLLED CLOCK 3 6 3 6 WITH TEMPERATURE AND HUMIDITY GETTING STARTED Model: C8458B 45Ɣ Remove the battery door. 45 Ɣ ,nsert 4 new AA size batteries according to the “+/-” polarity mark on the USER MANUAL battery compartment. WWVB version JJY version Thank you for purchasing this delicate radio clock with temperature and Ɣ Replace the battery door. humidity. Utmost care has gone into the design and manufacture of the clock. Ɣ 2nce the batteries are inserted, full segment of the LCD will be shown before This manual is used for DCF/MSF/WWVB/JJY versions, but the LCD display 2 entering the radio controlled time reception1 mode. and temperature use DCF/MSF version for reference. Please read the ƔAlarm The timeRC clock mode will automatically start scanning for the radio controlled time 3 instructions carefully according to the version you purchased and keep the 1. signalAlarm intime 8 seconds. manual well for future reference. 2. Alarm icon/Alarm on 3. Alarm mode indicator NOTE: PRODUCT OVERVIEW ,f no display appears on the LCD after inserting the batteries, press the [ RESET ] button by using a metal wire. ,n some cases, you may not receive the signal immediately. Due to the atmospheric disturbance, the best reception often occurs during nighttime. CLOCK GETTING STARTED DISABLE / ENABLE RCC SIGNAL RECEPTION TO SET THE VISUAL ANGLE Ɣ Remove the batteryDAYLIGHT door. SAVING TIME (DST) Ɣ Press and hold [ RCC ] button for 8 seconds to disable the reception. User can use < / > slide switch to set visual angle: Ɣ ,nsert 4 new AA size batteries according to the polarity mark on the Ɣ Press and hold [ RCC ] button for 8 seconds to enable automatic RCC reception. ,f the clock is placed directly on a flat surface with the table stand, choose the 1 The clock will automatically advance the time by one“+/-” hour in the spring and back battery compartment. < > position. 2 10 an hour in the fall, provided that the DST function is not turned off. Thank you for purchasing this delicate radio clock with temperature and Ɣ Replace the battery door. ,f the clock is hanged on the wall with the wall mounting hole, choose the < > 3 9 DST function is set to AUT2 by default. position. humidity. Utmost care has gone into the design and manufacture of the clock. Ɣ 2nce the batteries are inserted, full segment of the LCD will be shown before The above right choice ensures high definition of visual angle for the liquid This manual is used for DCF/MSF/WWVB/JJY versions, but the LCD display entering the radio controlled time reception mode. and temperature use DCF/MSF version for reference. Please read the display. Ɣ The RC clockRECEPTION will automatically OF RADIO start scanningCONTROLLED for the radio SIGNAL controlled time instructions carefully according to the version you purchased and keep the signal in 8 seconds. RC off RC on manual well for future reference.456 7 8 This RC clock includes a built-in receiver which picks up the signal from the BATTERAY REPLACEMENT DCF/MSF/WWVB/JJY station. Therefore, the clock automatically sets the time, dateNOTE: and weekday. When the low battery indicator “ ” displays, it indicates that the battery 11 SETTING THE TIME AND CALENDAR PRODUCT OVERVIEW Ɣ,f no The display clock appears automatically on the LCD carries after insertingout four the periodic batteries, synchronization press the [ RESET procedures ] button power is not enough. You should replace with 4 AA size batteries at once. by using(at 2:00 a metal AM, wire. 8:00 , nAM, some 2:00 cases, PM you and may 8:00 not PM receive daily) the with signal the immediately. RC signal Dueto to Ɣ ,n normal time mode, press and hold [ TIME SET ] button for 2 seconds until the correctatmospheric any disturbance,deviations to the the best exact reception time. often occurs during nighttime. the 12/24 Hr flashes. NOTE: CLOCK Ɣ 2nce the unit synchronizes successfully to the RC signal, the signal icon Ɣ Press [ +/- ] button to set 12/24 Hour format. Ɣ ,f the clock is not used for a long time, please take off the batteries. “ ” will show up. Each synchronization process will take between 6 to 16 Ɣ Press [ TIME SET ] button again until Hour digit flashes and press [ +/- ] DAYLIGHT SAVING TIME (DST) Ɣ Attention Batteries should not be exposed to excessive heat such as sunshine, fire or minutes. button to adjust its value. the like. Please dispose of used unit or batteries in an ecologically safe manner. 1 ƔThe To clock manually will automatically start or stop advance the RC signal the time reception, by one hourpress in [ theRCC spring ] button. and back Ɣ Repeat above operations to set the time and calendar in this sequence: 2 10 an hour in the fall, provided that the DST function is not turned off. DCF/MSF version: 12 12/24Hr>Hour>Minute>Second>Year>Month>Date>+/-23 Hour offset 3 9 NOTE:DST function is set to AUT2 by default. >Language>DST auto/off 13 Ɣ The strength of radio-controlled time signal from the transmitter tower may be affected JJY version: by geographical location or building around. RECEPTION OF RADIO CONTROLLED SIGNAL 12/24Hr>Hour>Minute>Second>Year>Month>Date>+/-23 Hour offset SPECIFICATIONS Ɣ Always place the unit away from interfering sources such as TV set, computer, etc. >Language>DST auto/off 1. [ SNOOZE ] button 4568. 7 [ RESET 8 ] button ƔThis Avoid RC placingclock includes the unit on a built-inor next toreceiver metal plates. which picks up the signal from the WWVB version: Radio controlled signal: DCF77/MSF/WWVB/JJY 2. [ + ] button 9. [ TIME SET ] button ƔDCF/MSF/WWVB/JJY Closed areas such as airport,station. basement, Therefore, tower the block, clock or automatically factory are not sets recommended. the time, 3. [ ALARM SET ] button 10. [ - ] button date and weekday. 12/24Hr>Time Zone>Hour>Minute>Second>Year>Month>Date> 11 TEMPERATURE 4. < °C/°F > slide switch 11. Wall-mounting hole Ɣ The clock automatically carries out four periodic synchronization procedures +/-23 Hour offset >Language>DST auto/off Display range: -40°C~70°C (-40°F~158°F) 5. < / >Visual angle slide switch 12. Table stand (at 2:00 AM, 8:00SIGNAL AM, 2:00 RECEPTION PM and 8:00 PM INDACATOR daily) with the RC signal to Ɣ Press [ TIME SET ] button to save the setting and return to normal time correct any deviations to the exact time. mode. 2r the clock will automatically exit the setting mode after 1 minute 6. [ YEAR ] button 13. Battery door The signal indicator displays signal strength in 4 levels. Wave segment flashing Ɣ 2nce the unit synchronizes successfully to the RC signal, the signal icon without pressing any button. 2perating range: 0°C~45°C (32°F~113°F) 7. [ RCC ] button means time signals are being received. The signal quality could be classified will show up. Each synchronization process will take between 6 to 16 into“ 4 types: ” minutes. RC synchronize process Accuracy: DISPLAY NOTE: Ɣ To manuallyWeak start signal or stop quality the RC signal reception, press [ RCC ] button. -5°C~-0.1°C: +/-2°C Ɣ When setting second, press [ +/- ] button to set its value to 00. Acceptable signal quality 0°C~40°C: +/-1°C 12 Normal time mode Ɣ 7 selectable languages and setting orders: EN(English) ĺ)5(French) ĺ'((German) 40.1°C~50°C: +/-2°C NOTE: Excellent signal quality 1. AM/PM (12 Hour format) ĺ(6(Spanish) ĺ,7(,talian) ĺ1/(Dutch) ĺ58(Russian) ( 23°F~32°F: +/-4°F 13 9 Ɣ The strength of radio-controlled time signal from the transmitter tower may be affected 2. Time 1 33°F~86°F: +/-2°F 8 by geographical location or building around. 3. Date-Month / Year (DCF/MSF) 7 SWITCH THE RCC SIGNAL FREQUENCY (JJY VERSION ONLY) 87°F~122°F: +/-4°F ) 2 Ɣ Always place the unit away from interfering sources such as TV set, computer, etc. SETTING THE ALARM TIME Month-Date / Year (WWVB/JJY) 1. [ SNOOZE ] button 8. [ RESET ] button DuringƔ Avoid reception placing the period, unit on press or next and to metalhold plates.[ RCC ] button for 3 seconds to switch 4. Temperature Ɣ ,n normal time mode, press and hold [ ALARM SET ] button for 2 seconds HUMIDITY 2. [ + ] button 39. [ TIME SET ] button betweenƔ Closed 40KHz areas such and as60KHz. airport, basement, tower block, or factory are not recommended. 5. Humidity 6 until Hour digit flashes. Display range: 20%~90% 3. [ ALARM SET ] button 10. [ - ] button 6. Weekday 4. < °C/°F > slide switch 11. Wall-mounting hole Ɣ Press [ +/- ] button to set its value. 7. Signal strength indicator 45 5. < / >Visual angle slide switch 12. Table stand TIME ZONESIGNAL SETTING RECEPTION (WWVB INDACATOR VERSION ONLY) Ɣ Press [ ALARM SET ] button again to step to Minute setting. Press [ +/- ] Accuracy: 8. Low battery indicator button to set its value. 20% RH~40% RH: +/-7% RH 6. [ YEAR ] button 13. Battery door YourThe signal clock isindicator designed displays to display signal time strength for different in 4 levels.
Recommended publications
  • WWVB: a Half Century of Delivering Accurate Frequency and Time by Radio
    Volume 119 (2014) http://dx.doi.org/10.6028/jres.119.004 Journal of Research of the National Institute of Standards and Technology WWVB: A Half Century of Delivering Accurate Frequency and Time by Radio Michael A. Lombardi and Glenn K. Nelson National Institute of Standards and Technology, Boulder, CO 80305 [email protected] [email protected] In commemoration of its 50th anniversary of broadcasting from Fort Collins, Colorado, this paper provides a history of the National Institute of Standards and Technology (NIST) radio station WWVB. The narrative describes the evolution of the station, from its origins as a source of standard frequency, to its current role as the source of time-of-day synchronization for many millions of radio controlled clocks. Key words: broadcasting; frequency; radio; standards; time. Accepted: February 26, 2014 Published: March 12, 2014 http://dx.doi.org/10.6028/jres.119.004 1. Introduction NIST radio station WWVB, which today serves as the synchronization source for tens of millions of radio controlled clocks, began operation from its present location near Fort Collins, Colorado at 0 hours, 0 minutes Universal Time on July 5, 1963. Thus, the year 2013 marked the station’s 50th anniversary, a half century of delivering frequency and time signals referenced to the national standard to the United States public. One of the best known and most widely used measurement services provided by the U. S. government, WWVB has spanned and survived numerous technological eras. Based on technology that was already mature and well established when the station began broadcasting in 1963, WWVB later benefitted from the miniaturization of electronics and the advent of the microprocessor, which made low cost radio controlled clocks possible that would work indoors.
    [Show full text]
  • Reception of Low Frequency Time Signals
    Reprinted from I-This reDort show: the Dossibilitks of clock svnchronization using time signals I 9 transmitted at low frequencies. The study was madr by obsirvins pulses Vol. 6, NO. 9, pp 13-21 emitted by HBC (75 kHr) in Switxerland and by WWVB (60 kHr) in tha United States. (September 1968), The results show that the low frequencies are preferable to the very low frequencies. Measurementi show that by carefully selecting a point on the decay curve of the pulse it is possible at distances from 100 to 1000 kilo- meters to obtain time measurements with an accuracy of +40 microseconds. A comparison of the theoretical and experimental reiulb permib the study of propagation conditions and, further, shows the drsirability of transmitting I seconds pulses with fixed envelope shape. RECEPTION OF LOW FREQUENCY TIME SIGNALS DAVID H. ANDREWS P. E., Electronics Consultant* C. CHASLAIN, J. DePRlNS University of Brussels, Brussels, Belgium 1. INTRODUCTION parisons of atomic clocks, it does not suffice for clock For several years the phases of VLF and LF carriers synchronization (epoch setting). Presently, the most of standard frequency transmitters have been monitored accurate technique requires carrying portable atomic to compare atomic clock~.~,*,3 clocks between the laboratories to be synchronized. No matter what the accuracies of the various clocks may be, The 24-hour phase stability is excellent and allows periodic synchronization must be provided. Actually frequency calibrations to be made with an accuracy ap- the observed frequency deviation of 3 x 1o-l2 between proaching 1 x 10-11. It is well known that over a 24- cesium controlled oscillators amounts to a timing error hour period diurnal effects occur due to propagation of about 100T microseconds, where T, given in years, variations.
    [Show full text]
  • Analog Clock Headway Movement FAQS
    ANALOG CLOCK HEADWAY MOVEMENT FAQS The links below will work in most PDF viewers and link to the topic area by clicking the link. We recommend Adobe Reader version 10 or greater available at: http://get.adobe.com/reader CONTENTS Analog Clock Headway Movement FAQS .................................................................... 1 Batteries ............................................................................................................................. 2 Atomic Clock Factory Restart ...................................................................................... 2 Supported Time Zones .................................................................................................. 2 Time is Incorrect ............................................................................................................. 2 Clock is incorrect by Hours but minutes are correct .......................................... 3 Daylight Saving Time ..................................................................................................... 3 Manually Set Time ........................................................................................................... 3 How long will the battery last? .................................................................................. 3 Can I shut off the WWVB signal? .............................................................................. 3 Is there a booster antenna to receive the WWVB signal in a difficult location? ............................................................................................................................
    [Show full text]
  • Five Years of VLF Worldwide Comparison of Atomic Frequency Standards
    RADIO SCIENCE, Vol. 2 (New Series), No. 6, June 1967 Five Years of VLF Worldwide Comparison of Atomic Frequency Standards B. E. Blair,' E. 1. Crow,2 and A. H. Morgan (Received January 19, 1967) The VLF radio broadcasts of GBR(16.0 kHz), NBA(18.0 or 24.0 kHz), and NSS(21.4 kHz) have enabled worldwide comparisons of atomic frequency standards to parts in 1O'O when received over varied paths and at distances up to 9000 or more kilometers. This paper summarizes a statistical analysis of such comparison data from laboratories in England, France, Switzerland, Sweden, Russia, Japan, Canada, and the United States during the 5-year period 1961-1965. The basic data are dif- ferences in 24-hr average frequencies between the local atomic standard and the received VLF radio signal expressed as parts in 10"'. The analysis of the more recent data finds the receiving laboratory standard deviations, &, and the transmission standard deviation, ?, to be a few parts in 10". Averag- ing frequencies over an increasing number of days has the effect of reducing iUi and ? to some extent. The variation of the & with propagation distance is studied. The VLF-LF long-term mean differences between standards are compared with the recent portable clock tests, and they agree to parts in IO". 1. Introduction points via satellites (Steele, Markowitz, and Lidback, 1964; Markowitz, Lidback, Uyeda, and Muramatsu, Six years ago in London, the XIIIth General Assem- 1966); improvements in the transmission of VLF and bly of URSI adopted a resolution (No. 2) which strongly LF radio signals (Milton, Fey, and Morgan, 1962; recommended continuous very-low-frequency (VLF) Barnes, Andrews, and Allan, 1965; Bonanomi, 1966; and low-frequency (LF) transmission monitoring US.
    [Show full text]
  • Bulletin of the DANISH SHORT WAVE CLUB INTERNATIONAL for Short Wave Listeners and Dxers No 9 December 2009 Volume 52
    Bulletin of the DANISH SHORT WAVE CLUB INTERNATIONAL for short wave listeners and DXers No 9 December 2009 Volume 52 Our German member, no. 3700 Dieter Sommer The equipment is Yaesu FT840, Sangean ATS-909 modifed, a T2FD antenna and a GP horizontal antenna. Dieter writes that he prefers Utility, Pirate and BC DX-ing Dieter has more than 200 countries verified He is 56 years old and have been DX-ing in about 43 years Editorial Staff: ISSN 0106-3731 Danish Short Wave Club International Shortwave Tips: Tavleager 31, DK-2670 Greve, Denmark Klaus-Dieter Scholz, Home page: http://www.dswci.org Postfach 45 02 34, D-99052 Erfurt, Germany Board: Tel.: +49 (0)361 –- 21 68 96 5, Fax: +49(0) 69 - 13 30 63 72 07 8 Chairman and representative to the EDXC: Web::http://www.dswci-sw-logs.dxer.info/yourlogs.htm Anker Petersen, E-mail: [email protected] Udbyvej 11, DK-2740 Skovlunde, Denmark Utility Shack: E-mail: [email protected] Tor-Henrik Ekblom, Treasurer: Solvindsgatan 7 A 20, FI-00990 Helsingfors, Finland Bent Nielsen, E-mail: [email protected] Egekrogen 14, DK-3500 Vaerloese, Denmark World News: E-mail: [email protected] Sakthi Jaisakthivel, Bank: Danske Bank, 59,Annai Sathya Nagar, Arumbakkam, Chennai-600106,India.: Holmens Kanal 2-12, DK 1092 Copenhagen K. E-mail:[email protected] BIC: DABADKKK. Account: DK 44 3000 4001 528459. QSL Corner: Danish members use: Reg. 3001- account no. 4001528459 Andreas Schmid, The treasurer accepts bank notes! Lerchenweg 4, D-97717 Euerdorf, Germany Editor-in-Chief and Distribution: E-mail: [email protected] Kaj Bredahl Jørgensen, Tel.
    [Show full text]
  • NIST Time and Frequency Services (NIST Special Publication 432)
    Time & Freq Sp Publication A 2/13/02 5:24 PM Page 1 NIST Special Publication 432, 2002 Edition NIST Time and Frequency Services Michael A. Lombardi Time & Freq Sp Publication A 2/13/02 5:24 PM Page 2 Time & Freq Sp Publication A 4/22/03 1:32 PM Page 3 NIST Special Publication 432 (Minor text revisions made in April 2003) NIST Time and Frequency Services Michael A. Lombardi Time and Frequency Division Physics Laboratory (Supersedes NIST Special Publication 432, dated June 1991) January 2002 U.S. DEPARTMENT OF COMMERCE Donald L. Evans, Secretary TECHNOLOGY ADMINISTRATION Phillip J. Bond, Under Secretary for Technology NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY Arden L. Bement, Jr., Director Time & Freq Sp Publication A 2/13/02 5:24 PM Page 4 Certain commercial entities, equipment, or materials may be identified in this document in order to describe an experimental procedure or concept adequately. Such identification is not intended to imply recommendation or endorsement by the National Institute of Standards and Technology, nor is it intended to imply that the entities, materials, or equipment are necessarily the best available for the purpose. NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY SPECIAL PUBLICATION 432 (SUPERSEDES NIST SPECIAL PUBLICATION 432, DATED JUNE 1991) NATL. INST.STAND.TECHNOL. SPEC. PUBL. 432, 76 PAGES (JANUARY 2002) CODEN: NSPUE2 U.S. GOVERNMENT PRINTING OFFICE WASHINGTON: 2002 For sale by the Superintendent of Documents, U.S. Government Printing Office Website: bookstore.gpo.gov Phone: (202) 512-1800 Fax: (202)
    [Show full text]
  • Time Signal Stations 1By Michael A
    122 Time Signal Stations 1By Michael A. Lombardi I occasionally talk to people who can’t believe that some radio stations exist solely to transmit accurate time. While they wouldn’t poke fun at the Weather Channel or even a radio station that plays nothing but Garth Brooks records (imagine that), people often make jokes about time signal stations. They’ll ask “Doesn’t the programming get a little boring?” or “How does the announcer stay awake?” There have even been parodies of time signal stations. A recent Internet spoof of WWV contained zingers like “we’ll be back with the time on WWV in just a minute, but first, here’s another minute”. An episode of the animated Power Puff Girls joined in the fun with a skit featuring a TV announcer named Sonny Dial who does promos for upcoming time announcements -- “Welcome to the Time Channel where we give you up-to- the-minute time, twenty-four hours a day. Up next, the current time!” Of course, after the laughter dies down, we all realize the importance of keeping accurate time. We live in the era of Internet FAQs [frequently asked questions], but the most frequently asked question in the real world is still “What time is it?” You might be surprised to learn that time signal stations have been answering this question for more than 100 years, making the transmission of time one of radio’s first applications, and still one of the most important. Today, you can buy inexpensive radio controlled clocks that never need to be set, and some of us wear them on our wrists.
    [Show full text]
  • Radio Navigational Aids
    RADIO NAVIGATIONAL AIDS Publication No. 117 2014 Edition Prepared and published by the NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY Springfield, VA © COPYRIGHT 2014 BY THE UNITED STATES GOVERNMENT NO COPYRIGHT CLAIMED UNDER TITLE 17 U.S.C. WARNING ON USE OF FLOATING AIDS TO NAVIGATION TO FIX A NAVIGATIONAL POSITION The aids to navigation depicted on charts comprise a system consisting of fixed and floating aids with varying degrees of reliability. Therefore, prudent mariners will not rely solely on any single aid to navigation, particularly a floating aid. The buoy symbol is used to indicate the approximate position of the buoy body and the sinker which secures the buoy to the seabed. The approximate position is used because of practical limitations in positioning and maintaining buoys and their sinkers in precise geographical locations. These limitations include, but are not limited to, inherent imprecisions in position fixing methods, prevailing atmospheric and sea conditions, the slope of and the material making up the seabed, the fact that buoys are moored to sinkers by varying lengths of chain, and the fact that buoy and/or sinker positions are not under continuous surveillance but are normally checked only during periodic maintenance visits which often occur more than a year apart. The position of the buoy body can be expected to shift inside and outside the charting symbol due to the forces of nature. The mariner is also cautioned that buoys are liable to be carried away, shifted, capsized, sunk, etc. Lighted buoys may be extinguished or sound signals may not function as the result of ice or other natural causes, collisions, or other accidents.
    [Show full text]
  • STANDARD FREQUENCIES and TIME SIGNALS (Question ITU-R 106/7) (1992-1994-1995) Rec
    Rec. ITU-R TF.768-2 1 SYSTEMS FOR DISSEMINATION AND COMPARISON RECOMMENDATION ITU-R TF.768-2 STANDARD FREQUENCIES AND TIME SIGNALS (Question ITU-R 106/7) (1992-1994-1995) Rec. ITU-R TF.768-2 The ITU Radiocommunication Assembly, considering a) the continuing need in all parts of the world for readily available standard frequency and time reference signals that are internationally coordinated; b) the advantages offered by radio broadcasts of standard time and frequency signals in terms of wide coverage, ease and reliability of reception, achievable level of accuracy as received, and the wide availability of relatively inexpensive receiving equipment; c) that Article 33 of the Radio Regulations (RR) is considering the coordination of the establishment and operation of services of standard-frequency and time-signal dissemination on a worldwide basis; d) that a number of stations are now regularly emitting standard frequencies and time signals in the bands allocated by this Conference and that additional stations provide similar services using other frequency bands; e) that these services operate in accordance with Recommendation ITU-R TF.460 which establishes the internationally coordinated UTC time system; f) that other broadcasts exist which, although designed primarily for other functions such as navigation or communications, emit highly stabilized carrier frequencies and/or precise time signals that can be very useful in time and frequency applications, recommends 1 that, for applications requiring stable and accurate time and frequency reference signals that are traceable to the internationally coordinated UTC system, serious consideration be given to the use of one or more of the broadcast services listed and described in Annex 1; 2 that administrations responsible for the various broadcast services included in Annex 2 make every effort to update the information given whenever changes occur.
    [Show full text]
  • What Time I T
    Does Anybody Really What Time It Is? 24/7/365, Here's How Time Got On Your Best Side By Michael A. Lombardi ccasionally I'll talk to people who known to most radio buffs. He used a can't believe that some radio sta- spark-gap transmitter to successfully 0tions exist solely to transmit accu- send radio signals over a distance of more rate time. While they wouldn't poke fun than one mile in 1895. By 1899 he had at the Weather Channel or even a radio transmitted signals across the English station that plays nothing but Garth Channel, and sent signals across the Brooks records (imagine that), people Atlantic Ocean in 1901. often make jokes about time signal sta- Surprisingly, in the midst of Marconi's tions. They'll ask "Doesn't the program- early work, before any radio stations exist- ming get a little boring?'or "How does ed, or before the public even completely the announcer stay awake?'There have believed his results, a proposal was made even been parodies of time signal sta- to use the new wireless medium to broad- tions. A recent Internet spoof of WWV cast time. In November 1898. an optical containedzingers like "we'll be back with instrument maker and inventor named Sir the time on WWV in just a minute, but Howard Grubb addressed the Royal first, here's another minute." Dublin Society and proposed the concept An episode of the animated Powerpuff of a radio controlled clock. After many Girls joined in the fun with a skit featur- years of working with astronomical obser- ing a TV announcer named Sonnv Dial L, vatories.
    [Show full text]
  • Time and Frequency Users' Manual
    ,>'.)*• r>rJfl HKra mitt* >\ « i If I * I IT I . Ip I * .aference nbs Publi- cations / % ^m \ NBS TECHNICAL NOTE 695 U.S. DEPARTMENT OF COMMERCE/National Bureau of Standards Time and Frequency Users' Manual 100 .U5753 No. 695 1977 NATIONAL BUREAU OF STANDARDS 1 The National Bureau of Standards was established by an act of Congress March 3, 1901. The Bureau's overall goal is to strengthen and advance the Nation's science and technology and facilitate their effective application for public benefit To this end, the Bureau conducts research and provides: (1) a basis for the Nation's physical measurement system, (2) scientific and technological services for industry and government, a technical (3) basis for equity in trade, and (4) technical services to pro- mote public safety. The Bureau consists of the Institute for Basic Standards, the Institute for Materials Research the Institute for Applied Technology, the Institute for Computer Sciences and Technology, the Office for Information Programs, and the Office of Experimental Technology Incentives Program. THE INSTITUTE FOR BASIC STANDARDS provides the central basis within the United States of a complete and consist- ent system of physical measurement; coordinates that system with measurement systems of other nations; and furnishes essen- tial services leading to accurate and uniform physical measurements throughout the Nation's scientific community, industry, and commerce. The Institute consists of the Office of Measurement Services, and the following center and divisions: Applied Mathematics
    [Show full text]
  • Spectracom 8163 WWVB Receiver/Comparator
    SPECTRACOM CORPORATION 320 N. Washington Street Rochester, New York 14625 WARRANTY REGISTRATION Dear Customer , Spectracorn occasionally contacts customers regarding our products. We must know to whom we should send manual updates, change notices, and new product information. Because people sometimes change job assignments, we request department, mail station, and title infor- mation to ensure that correspondence in future years will reach either the user of our products or 11isJher supervisor. In f i 1 ling out the registrat ion, please use the tit lelmail station/departrnent of the supervisor most interested in keeping the equipment and its dacumen- tat ion up-to-date. Thank you. E!ame Title Department Mail Stop Company Model Murnber Address Serial No. City Date installed State Zip Phone Ext . Remarks : (Problems , Suggen ions , etc .I CERTIFICATE OF TRACEABILITY SPECTRACOM CORPORATION hereby certifies that its Model 81 63 N8S Frequency Standard Receiver provides direct traceability to the National Bureau of Standards reference frequency as transmitted by station WWVB in Fort Collins, Colorado, with carrier frequency of 60 KHz. Automatic verification is provided by the station-identifying phase shift of 45' that appears on the carrier signal at 10 minutes after each hour, returning to normal five minutes later. This phase shift appears in the readout as an offset of about 2.1 micro- seconds on the front panel meter and on the strip chart recorder trace. When properly installed and maintained, the Model 8163 provides measurement accuracy and resolution as published in the equipment's instruct ion manual. SPECTWCOM CORPORATION WARRANTY Spectracorn corpora tion warrants to the original purchaser each new instrument to be f ree from defects in material and workmanship for a period of one year after shipment.
    [Show full text]