EAS Code and Attention Signal Trans- Mission Requirements
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Connecting with Listeners: How Radio Stations Are Reaching Beyond the Dial (And Their Competitors) to Connect with Their Audience
Rochester Institute of Technology RIT Scholar Works Theses 8-13-2015 (Re)Connecting With Listeners: How Radio Stations are Reaching Beyond the Dial (and Their Competitors) to Connect With Their Audience Alyxandra Sherwood Follow this and additional works at: https://scholarworks.rit.edu/theses Recommended Citation Sherwood, Alyxandra, "(Re)Connecting With Listeners: How Radio Stations are Reaching Beyond the Dial (and Their Competitors) to Connect With Their Audience" (2015). Thesis. Rochester Institute of Technology. Accessed from This Thesis is brought to you for free and open access by RIT Scholar Works. It has been accepted for inclusion in Theses by an authorized administrator of RIT Scholar Works. For more information, please contact [email protected]. Running head: (RE)CONNECTING WITH LISTENERS 1 The Rochester Institute of Technology School of Communication College of Liberal Arts (Re)Connecting With Listeners: How Radio Stations are Reaching Beyond the Dial (and Their Competitors) to Connect With Their Audience by Alyxandra Sherwood A Thesis submitted in partial fulfillment of the Master of Science degree in Communication & Media Technologies Degree Awarded: August 13, 2015 (RE)CONNECTING WITH LISTENERS 2 The members of the Committee approve the thesis of Alyxandra Sherwood presented on August 13, 2015. ___________________________________ Patrick Scanlon, Ph.D. Professor of Communication and Director School of Communication ___________________________________ Rudy Pugliese, Ph.D. Professor of Communication School of Communication Thesis Advisor ___________________________________ Michael J. Saffran, M.S. Lecturer and Faculty Director for WGSU-FM (89.3) Department of Communication State University of New York at Geneseo Thesis Advisor ___________________________________ Grant Cos, Ph.D. Associate Professor of Communication Director, Communication & Media Technologies Graduate Degree Program School of Communication (RE)CONNECTING WITH LISTENERS 3 Dedication The author wishes to thank Dr. -
Lesson 1 Key-Terms Meanings: Internet Connectivity Principles
Lesson 1 Key-Terms Meanings: Internet Connectivity Principles Chapter-4 L01: "Internet of Things " , Raj Kamal, 2017 1 Publs.: McGraw-Hill Education Header Words • Header words are placed as per the actions required at succeeding stages during communication from Application layer • Each header word at a layer consists of one or more header fields • The header fields specify the actions as per the protocol used Chapter-4 L01: "Internet of Things " , Raj Kamal, 2017 2 Publs.: McGraw-Hill Education Header fields • Fields specify a set of parameters encoded in a header • Parameters and their encoding as per the protocol used at that layer • For example, fourth word header field for 32-bit Source IP address in network layer using IP Chapter-4 L01: "Internet of Things " , Raj Kamal, 2017 3 Publs.: McGraw-Hill Education Protocol Header Field Example • Header field means bits in a header word placed at appropriate bit place, for example, place between bit 0 and bit 31 when a word has 32-bits. • First word fields b31-b16 for IP packet length in bytes, b15-b4 Service type and precedence and b3-b0 for IP version • Chapter-4 L01: "Internet of Things " , Raj Kamal, 2017 4 Publs.: McGraw-Hill Education IP Header • Header fields consist of parameters and their encodings which are as per the IP protocol • An internet layer protocol at a source or destination in TCP/IP suite of protocols Chapter-4 L01: "Internet of Things " , Raj Kamal, 2017 5 Publs.: McGraw-Hill Education TCP Header • Header fields consist of parameters and their encoding which are as -
A Strong Signal, Transmitting Traffic Information Via FM Subcarrier
A Strong Signal Transmitting Traffic Information Via FM Subcarrier The Challenge: A key element of AZTech's mission is to make up-to-the-minute traffic information available to virtually any traveler. In pursuit of this goal, AZTech set its sights on obtaining an FM subcarrier that could transmit a wide variety of traffic-related information to mobile wireless devices on a timely basis. A subcarrier is the portion of FM radio waves that aren't required to broadcast a radio station's audio signal. Although FM subcarriers make up a small proportion of the broadcast frequency, they represent a significant source of revenue for radio stations, as numerous pager companies rent the subcarriers to transmit their signals. For this reason, few stations offer their moneymaking subcarriers to other interested parties. "Originally, we went the conventional route and solicited open competitive bids from radio stations to provide the FM subcarrier transmission," said Pierre Pretorius, AZTech program manager. "A significant amount was budgeted for this purpose." Of the dozen or so local stations that were approached, not one submitted a bid. In fact three "no bids" were returned. "There wasn't a radio station in town that had a free subcarrier that they wanted to sell," said Marty Scott, AZTech system integration coordinator. The Solution: The complete lack of qualified radio stations willing to provide the FM subcarrier transmission placed a significant hurdle in AZTech's path. After nearly six months of seeking a solution, one knocked on AZTech's door. The FM station KBAQ, which is owned and operated by Mesa Community College, contacted AZTech to see if they were still searching for a subcarrier. -
United States Patent [19] [11] Patent Number: 4,713,808 Gaskill Et Al
United States Patent [19] [11] Patent Number: 4,713,808 Gaskill et al. [45] Date of Patent: Dec. 15, 1987 [54] WATCH PAGER SYSTEM AND 4,569,598 2/1986 Jacobs ........ .. 368/47 COMMUNICATION PROTOCOL 4,641,304 2/1987 Raychaudhun .................... .. 370/93 [75] Inventors: Garold B. Gaskill, Portland; Daniel J. Primary Examiner-Donate W- Olms Pal-k; Robert G_ Ruuman, both of Assistant Examiner-Melvm Marcelo Beaverton; Donald T. Rose, Portland; Attorney, 1489f!’ 0' FirmfKlal'quisti Sparkmatli Joseph F. Stiley, III; Lewis w. , Campbell, Lelgh & Whmsron Barnum, both of Tigard, all of Greg; [57] ABSTRACT Don G. Hoff, Tiburon, Calif. _ . _ _ _ _ _ ' ‘ _ A wide area pagmg system 1s dlsclosed 1n wh1ch pagmg [73] Asslgnee: A 8‘ E Corporation’ San Franclsco’ messages input to the system in one local area can be Cahf' broadcast to a receiver in any other local area without [21] APPL No_; 302,344 necessarily broadcasting the message in all areas. A . local area clearinghouse in each area stores resident [22] F?ed' Nov‘ 27’ 1985 subscriber data including current location and receiver [51] Int. Cl.‘ .......................... .. H04J 3/24; H04] 3/26 serial number. This data is used to transfer messages [52] US. Cl. ................................ .. 370/94; 370/93 over a data network to the correct clearinghouse. The [58] Field of Search ........................... .. 370/94, 60, 93; system uses a TDM data protocol. The data is encoded 340/825-52 and transmitted at a very high rate (e.g., 19,000 band) in [561 References Cited short packets (256 bits/l3 milliseconds) via stereo FM sidebands. -
Usenet News HOWTO
Usenet News HOWTO Shuvam Misra (usenet at starcomsoftware dot com) Revision History Revision 2.1 2002−08−20 Revised by: sm New sections on Security and Software History, lots of other small additions and cleanup Revision 2.0 2002−07−30 Revised by: sm Rewritten by new authors at Starcom Software Revision 1.4 1995−11−29 Revised by: vs Original document; authored by Vince Skahan. Usenet News HOWTO Table of Contents 1. What is the Usenet?........................................................................................................................................1 1.1. Discussion groups.............................................................................................................................1 1.2. How it works, loosely speaking........................................................................................................1 1.3. About sizes, volumes, and so on.......................................................................................................2 2. Principles of Operation...................................................................................................................................4 2.1. Newsgroups and articles...................................................................................................................4 2.2. Of readers and servers.......................................................................................................................6 2.3. Newsfeeds.........................................................................................................................................6 -
Relation of Radio Wave Propagation to Disturbances in Terrestrial Magnetism
RP76 RELATION OF RADIO WAVE PROPAGATION TO DIS- TURBANCES IN TERRESTRIAL MAGNETISM By Ivy Jane Wymore ABSTRACT This paper presents the results of a study of an apparent interrelationship between radio reception and changes in the earth's magnetism. The results show that for long-wave daylight reception over great distances (4,000 to 7,100 km) there is, in general, a variable but definite increase in the intensity of the received signal following the height of severe magnetic disturbance. This increase reaches its maximum in from one to two days and disappears in from four to five days. For moderate distances (250 to 459 km) there is an increase in the intensity of the received signal noticeable before as well as after the magnetic storm reaches a maximum. These changes in intensity cover periods from two to four days both before and after the magnetic storm reaches its height. In a paper presented before the Institute of Radio Engineers in May, 1925, Espenschied, Anderson, and Bailey * pointed out that at times of severe magnetic storms abnormal radio transmission was likely to occur, night field intensities being greatly reduced and day- light intensities slightly increased. These conclusions were based upon hourly observations (for one day a week) of low-frequency transmission (57 kc) across the Atlantic covering a period of about two years. From a more exhaustive analysis of this same material, with the addition of later observations, Anderson 2 in 1928 concludes: High daylight radio field strengths (at 57 kc) obtain during periods of marked magnetic activity. In most cases the magnetic disturbances precede the high values, but there is evidence of an abrupt rise to high values preceding the mag- netic disturbance and at times a gradual rise to high values independent of the magnetic activity. -
Cisco Unified Border Element H.323-To-SIP Internetworking Configuration Guide, Cisco IOS Release 12.4T Iii
Cisco Unified Border Element H.323-to- SIP Internetworking Configuration Guide, Cisco IOS Release 12.4T Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. -
Structure of IEEE 802.11 Packets at Various Physical Layers
Appendix A: Structure of IEEE 802.11 Packets at Various Physical Layers This appendix gives a detailed description of the structure of packets in IEEE 802.11 for the different physical layers. 1. Packet Format of Frequency Hopping Spread-spectrum Physical Layer (FHSS PHY) The packet is made up of the following elements (Figure A.1): 1.1 Preamble It depends on the physical layer and includes: – Synch: a sequence of 80 bits alterning 0 and 1, used by the physical circuits to select the correct antenna (if more than one are in use), and correct offsets of frequency and synchronization. – SFD: start frame delimiter consists of a pattern of 16 bits: 0000 1100 1011 1101, used to define the beginning of the frame. 1.2 Physical Layer Convergence Protocol Header The Physical Layer Convergence Protocol (PLCP) header is always transmitted at 1 Mbps and carries some logical information used by the physical layer to decode the frame: – Length of word of PLCP PDU (PLW): representing the number of bytes in the packet, useful to the physical layer to detect correctly the end of the packet. – Flag of signalization PLCP (PSF): indicating the supported rate going from 1 to 4.5 Mbps with steps of 0.5 Mbps. Even though the standard gives the combinations of bits for PSF (see Table A.1) to support eight different rates, only the modulations for 1 and 2 Mbps have been defined. – Control error field (HEC): CRC field for error detection of 16 bits (or 32 bits). The polynomial generator used is G(x)=x16 + x12 + x5 +1. -
Wireless Real-Time IP Services Enabled by Header Compression
Wireless Real-time IP Services Enabled by Header Compression Krister Svanbrof, Hans Hannu f, Lars-Erik Jonsson f, Mikael Degermarkf f Ericsson Research f Dept. of CS & EE Ericsson Erisoft AB Lulei University of Technology Box 920, SE-971 28 Lulei, Sweden SE-971 87 Lulei, Sweden Abstract - The world of telecommunications is currently A major problem with voice over IP over wireless is the going through a shift of paradigm from circuit switched, large headers of the protocols used when sending speech connection oriented information transfer towards packet data over the Internet. An IPv4 packet with speech data switched, connection-less transfer. For application will have an IP header, a UDP header, and an RTP header independence and to decrease costs for transport and making a total of 20+8+12=40 octets. With IPv6, the IP switching it is attractive to go IP all the way over the air header is 40 octets for a total of 60 octets. The size of the ' interface to the end user equipment, i.e., to not terminate speech data depends on the codec, it can be 15-30 octets. the IP protocols before the air interface. A major reason to These numbers present a major reason for terminating the avoid using voice over IP over the air interface has, up to IP protocols before the air interface: the IP/UDP/RTP now, been the relatively large overhead imposed by the headers require a higher bit rate and would cause IP/UDP/RTP headers of voice packets. This paper presents inefficient use of the expensive radio spectrum. -
How the Internet Works: Headers and Data; Packets and Routing 1
Howthe Internet Works: Headers and Data; Packets and Routing 1. Transmitting Information through the Ages Howcan you get information from one place to another? How, for example, can you get an image from one place to another? Two hundred years ago, you would have todraw, paint, or print the image on paper or canvas, then carry, on foot, horseback, boat, or wagon, this analog version of view. One hundred years later,technology had advanced. By the early part of the 20th century,fax machines existed. With fax, you could drawthe image and send it overwires. What newscientific developments made that change possible? Here are a fewmilestones: YEAR WHATWHO WHERE 1800 Invents electric battery Allesandro Volta Italy 1820 Discovers electric current creates magnetism Hans O/rsted Denmark 1837 Invents electric telegraph Samuel Morse USA Before the battery,electricity was available from lightning and by shuffling across rugs on dry days, but that static electricity could not provide a steady,evenflow.Volta’sbattery made it possible to create a steady electrical current. Twenty years later,O/rsted discovered that a steady current of electricity produced a magnetic effect. Later,Morse connected a battery,aswitch, and a coil so that closing the switch at one end of the wire would create magnetism that would attract a piece of metal at the other end of the wire. By closing the switch for short and long durations, he was able to transmit bits a long distance. This system, the electric telegraph, made long-distance, all-weather,pri- vate communication possible. This technology led to the Internet. -
Cooperative Measurements of Radio Fading in 1925
S561 COOPERATIVE MEASUREMENTS OF RADIO FADING IN 1925 By J. H. Dellinger, C. B. Jolliffe, and T. Parkinson ABSTRACT At the beginning of 1925 the bureau invited a number of laboratories to participate in the beginning of a cooperative program of measurement. During the year the work was largely confined to measurements of fading at frequencies within the broadcast band. The general plan of the work was the arrangement of special transmissions in which a station transmitted continuously during a specified period while the observing laboratories made graphic records simul- taneously. The observing method was that of Pickard, described in his paper, *' Short-period variations in radio reception," published in the Proceedings of the Institute of Radio Engineers, volume 12, page 119, 1924. Twenty-three laboratories engaged in this work. The series of measurements on fading were devoted to studies of fading effects during the sunset period, effects during the solar eclipse of January 24, the fading variations throughout a 24-hour day, and the effects of high transmitting power on fading. For these tests special transmissions were made by broad- casting stations WGY and KDKA. The results of 150 graphic fading records made by the cooperating observers established definitely a number of facts about fading that had been only sur- mised or guessed previously. In addition, a number of new facts about fading and other vagaries of radio waves were brought to light. Fading is at its worst about 60 to 125 miles from a broadcasting station; for greater distances it dimin- ishes, but then increases again with distance, and has repeated maxima and minima for greater distances. -
Letter Circular 645: Methods of Using Standard Frequencies Broadcast by Radio
U. S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS WASHINGTON Letter Circular LC-645 METHODS OF USING STANDARD FREQUENCIES BROADCAST BY RADIO March 194-1, 26 , JHD: ANK U. S. DEPARTMENT OF COMMERCE Letter 1-6 NATIONAL BUREAU OF STANDARDS Circular WASHINGTON LC-645 ( Suoersed.es ~LC-567) March 26, 194 METHODS OF USING STANDARD FREQUENCIES BROADCAST BY RADIO. The National Bureau of Standards broadcasts standard fre- quencies and related services by radio. The transmitting station from which these services were transmitted was de-» stroyed by fire November 6, 1940. A reduced service has been provided since then by temporary equipment in another build- ing. This will continue for some months. As rapidly as possible the Bureau will establish a new station to provide more fully than in the past standard frequencies capable of being received satisfactorily at all times throughout the country. These will be transmitted on mere adequate power, and several radio carrier frequencies will be used, in order to provide more certain coverage of all distances. The service is continuous at all times day and night, except for the possibility of breakdowns of the temporary apparatus used in the next few months. The broadcast carries the standard musical pitch and other features. During the next few months there will be only one radio carrier fre- quency viz, 5 megacycles (= 50 C 0 kilocycles = S 000 000 cycles) per second. The standard musical pitch carried by the broadcast is the frequency 44-0 cycles per second, corresponding to A above middle C, This is accepted as standard pitch by the musical profession and the American Standards Association.