Take awaysT1

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Take awaysT1

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... amateur station ... Any amateur can apply for temporary 1 by 1 Special Event call ... By video. Slow Scan TV. By Morse code. Not to exceed 20wpm. All of these ... – PowerPoint PPT presentation

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Title: Take awaysT1


1
Take aways T1
  • Amateur Radio Stationcarries on radio
    communications with necessary apparatus.
  • Amateur Operator person named in FCC ULS
    database
  • Basic purposes voluntary noncommercial service,
    particularly during emergencies
  • Two of Five increase numbers of trained
    operators and improve international goodwill

2
Take aways (cont) T1
  • FCC makes and enforces rules
  • Harmful interference disturbs other
    communications
  • Ten years two year grace period. Renew on line
    /no cost. (unless a vanity call)
  • ITU Regions assist management of frequency
    allocations U.S. in Region 2

3
Take aways (cont) T1
  • Reciprocal operating agreement allows operation
    in foreign countries
  • FCC uses Sequential Call Sign System
  • Four members for a club station obtained by
    applying through Club Station Call Sign
    Administrator

4
Take aways (cont) T1
  • 52.525 MHz 6-meter band
  • 146.52 MHz 2-meter band
  • 223.50 MHz 1.25-meter band
  • 443.350 MHz 70-centimeter
  • 1296 MHz 23-centimeter
  • Notice that as the frequency goes up, the
    wavelength goes down
  • (Sorry, you need to memorize these frequencies)

5
Take aways (cont) T1
  • Control an amateur station name in FCC database
    or be an alien with reciprocal agreement to
    operate in U.S.
  • U.S. license allows transmissions FCC regulated
    or reciprocal agreements
  • U.S. amateurs communicate with foreign countries
    unless prohibited by either governments
  • With authorization by FCC communications with
    other radio services may be permitted

6
Take aways (cont) T1
  • Communications on regular basis furnished by
    other radio services are not permitted
  • Amateur bands as secondary basis my not cause
    harmful interference to primary users by rules
  • FCC grants amateur radio license
  • FCC issues operator/station licenses in the
    Amateur Radio Service

7
Take aways (cont) T1
  • Anyone except a representative of a foreign
    government can become an amateur licensee in the
    U.S.
  • No age requirements
  • Transmissions after passing the required exam and
    as soon as your license grant appears in the FCC
    ULS database
  • Responsibility as a station licensee ensure your
    station is operated in accordance with the FCC
    rules

8
Take aways (cont) T1
  • Station licensee mailing address must be current,
    correct name and address, revocation of license
    possible if returned as undeliverable
  • Letters A K N W Numbers 0 thru 9 assigned
    by district of applicant
  • Any amateur can apply for temporary 1 by 1
    Special Event call sign, use normal ID
    requirements plus your call sign once an hour
  • Vanity call signs thru vanity call sign program
    renewal on Internet, fee required
  • Technician, General, Extra

9
Take aways (cont) T1
  • VE is volunteer examiner VEC Volunteer examiner
    coordinator
  • CSCE valid for 365 days
  • Normal term for license of 10 years
  • Transmitting is not permitted if license not
    valid renewed and appears on the FCC ULS
    database
  • Grace period is 2 years with re-examination no
    transmitting permitted during this time frame

10
Take aways T2
  • Amateurs never transmit to general public
  • Do not transmit music incidental to rebroadcast
    from space shuttle
  • NEVER transmit false or deceptive
  • Indecent and obscene prohibited

11
Take aways (cont) T2
  • Broadcasting Intended for reception of general
    public, direct or relayed
  • Calling employer for customers directions on
    autopatch prohibited
  • Transmit unidentified communications only when
    sent from space station or to control model craft
  • At least 4 persons are required for a club
    license

12
Take aways (cont) T2
  • Codes or ciphers hiding meaning of message to
    space station or radio control craft
  • Occasional basis equipment for sale or trade
  • Compensation only in accordance with Part 97
    rules
  • Space station or control of model craft permits
    unidentified communications

13
Take aways (cont) T2
  • Transmit your callsign to identify
  • No Station ID is considered unidentified
    communications or signals
  • ID every ten minutes and at end
  • Each station must ID with its own call sign at
    end of communications

14
Take aways (cont) T2
  • Longest period of time without ID is ten minutes
  • Identify in English when speaking to another
    station not using English
  • Special Event Call Sign normal time for ID plus
    your callsign once an hour

15
Take aways (cont) T2
  • Self-assigned indicators must not conflict with
    an indicator specified by FCC rules or with a
    prefix assigned to another country
  • Correct ID when visiting a station, their call
    sign first followed by your call, if you hold
    higher class license and using a frequency not
    authorized to their class of license
  • Earned operating privileges by exam upgrade,
  • /AG means Authorized General
  • /AE means Authorized Extra

16
Take aways (cont) T2
  • Repeater ID standards
  • By phone
  • Digital voice
  • By video
  • Slow Scan TV
  • By Morse code
  • Not to exceed 20wpm
  • All of these are correct

17
Take aways (cont) T2
  • Control operator
  • Operator designated by licensee to be responsible
    for any transmissions from the station in
    compliance with FCC rules
  • Responsible for transmissions from an amateur
    station
  • Every Amateur station must have a control
    operator
  • Only one amateur operator/primary station
    licensee held by one person

18
Take aways (cont) T2
  • Control operator of a repeater minimum license
    of Technician Class
  • Amateur station must have control operator
    whenever station is transmitting
  • Control operator function performed at control
    point of an amateur station

19
Take aways (cont) T2
  • Automatically controlled station does not require
    control operator at the control point
  • Three types of stations control permitted
  • Local
  • Remote
  • Automatic
  • Local when transmitting using a handheld radio
  • Remote when not at location, but can still make
    changes to the transmitter
  • Automatic control used on repeater control
    operator not present

20
Take aways (cont) T2
  • Transmit from another amateurs station, both are
    responsible
  • Control operator license determines operating
    privilegeshigher vs lower
  • Operate amateur station aboard aircraft with
    approval of pilot in command and not using
    aircraft equipment

21
Take aways (cont) T2
  • Class of license of control operator determines
    all operating privileges
  • Unlicensed persons, family or not, not permitted
    to be control operator
  • Third party communications two amateurs send
    message for someone else
  • Conducting business via amateur radio is
    prohibited, even on autopatch

22
Take aways (cont) T2
  • FCC can inspect at any time upon request
  • Disconnect power and mic cables for added station
    security against unauthorized use (transmissions)
  • 365 days for CSCE
  • Ten years renewable
  • Two year grace period

23
Take aways T3
  • Listen first, before transmitting
  • Looking for any stationcall CQ
  • CQ means Calling any station
  • On repeater, callsign instead of CQ
  • Calling another station
  • Their callsign and then your callsign
  • On a repeater and answering a CQ
  • ITU phonetic alphabet for identifying your
    station avoid cute phrases

24
Take aways (cont) T3
  • Testing transmissions require identification
  • Unidentified transmissions are illegal
  • Even a brief test
  • ID required every ten minutes and at end of every
    transmission
  • Special events ID same ten minutes applies in
    addition to once an hour your own callsign

25
Take aways (cont) T3
  • Use of minimum power
  • Just power necessary to carry out the desired
    communications
  • On HF and Repeaters
  • Accountability
  • Transmitting station is accountable if a repeater
    inadvertently retransmits violations of FCC rules

26
Take aways (cont) T3
  • Band plans
  • Voluntary guideline, beyond divisions established
    by F.C.C.
  • Designed for efficient use of radio spectrum
  • Developed by amateur radio operators
  • Repeater coordination
  • Recognized frequency coordination body
  • Sets up band plan in local area
  • Reduce interference and promote proper use of
    spectrum

27
Take aways (cont) T3
  • Mode restricted sub-bands
  • 6-meter CW
  • 2-meter CW
  • 1-1/4 meter CW and Data

28
Take aways (cont) T3
  • Courtesy and respect on the air
  • Break into a QSO, by giving your callsign
  • Proper repeater practices
  • Monitor/listen first keeping transmissions short
  • Identify legally
  • Use minimum transmitter power necessary
  • All of these answers are correct

29
Take aways (cont) T3
  • Operate within limits of your license
  • No station has exclusive use of a frequency
  • Hear a new operator having trouble, offer to help
  • Not covered by rules
  • General operating standard of good engineering
  • Good amateur practices
  • (Must be applied to amateur station operation)

30
Take aways (cont) T3
  • Avoid use of racial or ethnic slurs
  • Offensive
  • Reflects poor public image
  • Subjects not prohibited
  • Political discussions
  • Jokes and stories
  • Religious preferences
  • All of these answers are correct

31
Take aways (cont) T3
  • Obscene language is prohibited
  • Because its offensive to some
  • Because young children may hear
  • Language specifically prohibited by Rules
  • All of these choices are correct
  • No official list of prohibited words

32
Take aways (cont) T3
  • Front end overload responsibility is with the
    owner of the TV
  • Major cause of phone interference
  • Not properly equipped when manufactured
  • Cable TV cable break can cause
  • TV interference
  • Amateur receiver interference
  • Front-end overload is result of strong signals
    from nearby source

33
Take aways (cont) T3
  • RACES and ARES
  • Both provide communications during emergencies
  • F.C.C. rules apply to your station when using
    amateur radio at request of
  • Public service officials
  • At scene of an emergency

34
Take aways (cont) T3
  • Splatter or interference reports from nearby
    frequencies
  • Check frequency
  • Spurious emissions
  • Unintentionally interfere
  • ID properly
  • Move to a different frequency

35
Take aways (cont) T3
  • Deliberate interference N E V E R
  • No declared communications emergency
  • No station has exclusive use of a frequency
  • Reduce on air interference
  • Test transmitter with a dummy load

36
Take aways T4
  • Unit of current amperes
  • Electron flow is current
  • Current flowing in one direction is DC
  • Unit of power Watt
  • Unit of frequency Hertz
  • Unit of resistance Ohm
  • Current that reverses direction is AC

37
Take aways (cont) T4
  • Copper is a good conductor
  • Glass is a good insulator
  • Opposition to current flow . Resistance
  • Conductorsgold, silver, copper, aluminum
  • Insulatorsair, rubber, plastic, ceramic

38
Take aways (cont) T4
  • Car battery 12 volts DC
  • DC measured by amplitude
  • AC measured by Average Amplitude
  • Ammeter measures current
  • Volt meter measures voltage
  • Sixty hertz means 60 cycles per second

39
Take aways (cont) T4
  • Frequency describes number of times AC flows back
    and forth per second
  • Wavelength is distance a radio wave travels
    during one complete cycle
  • Frequency increases as wavelength gets shorter
  • Wavelength in meters equals 300 divided by
    frequency in MHz
  • Radio waves travel at speed of light

40
Take aways (cont) T4
  • Bands identified by physical length (or
    wavelength)
  • 2-meter band 144 to 148 MHz
  • 6-meter band 50 to 54 MHz
  • 70-centimeter band 420 to 450 MHz
  • Sound waves 300 to 3000 Hertz
  • Radio waves are Electromagnetic and are 20,000
    cycles per second and higher

41
Take aways (cont) T4
  • Receiver converts radio signals to audio
  • Transmitter converts sound into radio waves
  • Transceiver is two devices in one, receiver and
    transmitter
  • Power supply converts AC to DC.
  • Amplifier increases power output
  • Lithium-ion battery offers longest life in HTs
  • Ni-Cad per cell voltage is 1.2 volts
  • Carbon-zinc battery cannot be re-charged

42
Take aways (cont) T4
  • Keep re-chargeable batteries in good condition
    for emergencies
  • Inspect for damage
  • Store in cool and dry location
  • Given maintenance recharge every 6 months
  • All of these answers are correct
  • Slowest rate of current drain gives most amount
    of energy

43
Take aways (cont) T4
  • Ohms Law
  • Power calculations

44
Take aways (cont) T4
  • One kilovolt is one thousand volts
  • 1500 KHz is 1,500,000 Hertz
  • 1.5 amps is 1500 milliamperes
  • 500 milliwatts is 0.5 watts
  • One microvolt is one one-millionth of a volt

45
Take aways T5
  • Microphone transmitter
  • Speaker receiver
  • Mic/speaker too close feedback
  • Noisy area, use headphones
  • Regulated power supply voltage fluctuations

46
Take aways (cont) T5
  • Reduce spurious emissions at Xmtr
  • Prevent RF overload Notch filter
  • TransceiverTNCcomputer
  • Packet doesnt need a mic
  • Computer sound card for data transmissions

47
Take aways (cont) T5
  • Too much mic gain will cause distortion and be
    unreadable
  • Store in memory PL (tones) Power level
    transmit/receive frequencies
  • Keypad/VFO to select frequency
  • Favorite frequency store in memory
  • Ignition noiseturn on noise blanker

48
Take aways (cont) T5
  • Up/Down buttons easy frequency or memory
    selection
  • Shift sets offset frequency
  • RIT Receiver Incremental Tuning
  • Step sets tuning rate
  • F selects alternate actions with same buttons

49
Take aways (cont) T5
  • Repeaters extend range of mobiles and low-power
    stations
  • Courtesy tone indicates transmission is done
  • Offsets 0.6 MHz 5.0 MHz 2-meter
    70-centimeter bands
  • Input/output frequencies of repeaters receives
    on one, transmits on another
  • Transmit and receive same frequency simplex

50
Take aways (cont) T5
  • Use of simplex avoids tying up repeater
  • Series of repeaters connected linked repeater
    system
  • Access to repeater may be limited by owner
  • Closed machine is restricted use
  • Local frequency coordinators minimize
    interference and make most efficient use of
    frequencies available

51
Take aways (cont) T5
  • Fundamental overload very strong signals from
    nearby source
  • Doppler is NOT a cause of RFI
  • Transmitter signals cause telephone to act like a
    receiver caused by nearby transmitter
  • Correct RFI Snap-on ferrite chokes low-pass and
    high-pass filters
  • Neighbor reports interference meet standards of
    good amateur practice

52
Take aways (cont) T5
  • Neighbor causing interference work with
    neighbor inform rules require stop of
    interference Good standards of amateur practice
  • Mobile has high-pitched whine power wiring
    picking up noise from electrical system
  • SSB garbled and broken up RF energy causing
    feedback
  • Digital systems automatically error correct noise
    and interference
  • Using repeater distorted or weak .. Off
    frequency batteries low bad location

53
Take Aways T6
  • Connect radio stations to the InternetGateway
  • Phone is voice transmission
  • SSB a form of AM
  • USB normally used for VHF UHF SSB
  • SSB advantage over FMless bandwidth
  • SSB used for long distance and weak signal
    contacts on VHF/UHF

54
Take Aways (cont) T6
  • FM most common on VHF/UHF repeaters
  • CW has narrowest bandwidth
  • Bandwidth of SSB 2-3 kHz
  • Bandwidth of FM5-15 kHz
  • Bandwidth of Fast-scan TV on 70-centimeter
  • 6 mHz

55
Take Aways (cont) T6
  • Echolink uses the Internet
  • Echolink allows computer-to-radio linking for
    voice
  • Any licensed amateur can use Echolink
  • Echolink IRLP have VoIP in common
  • Hear a tone and CQ on 2-meter repeater
  • Internet linked DX station

56
Take Aways (cont) T6
  • VoIP method for data transfer by IRLP
  • IRLP links two or more stations using the
    Internet
  • Active nodes using VoIP listed in repeater
    directory or on Internet
  • Select IRLP node with keypad
  • Standard fast color TVNTSC

57
Take Aways (cont) T6
  • Packet Radio is digital communications
  • 219-220 mHz for Point-to-point digital message
    forwarding
  • PSK Phase Shift Keying
  • PSK31 low-rate data mode that works well in noisy
    conditions

58
Take Aways (cont) T6
  • APRS Automatic Position Reporting System
  • A GPS receiver needed for APRS
  • Send at speed you can reliably receive
  • Copy CW to recognize ID sent in Morse code
  • QRM receiving interference
  • QSY Change frequency

59
Take Aways T7
  • RDF Radio Direction Finding
  • Locate interference or jamming
  • Directional antenna hidden transmitter hunt
  • Spare batteries good to have when away from home
    QTH
  • 1500 Watt amplifier not too good an item for
    emergency response kit

60
Take Aways (cont) T7
  • Use external antenna instead of rubber-duck out
    in field
  • Combo headset/mic in noisy areas
  • Max power for RC models 1 watt
  • Station ID for RC affixed to the transmitter

61
Take Aways (cont) T7
  • Contacting as many stations as possible is
    contesting
  • Grid Locator Letter/number assigned to
    geographic area
  • Uplink frequency determines class of license for
    satellite use
  • Power for contact to satellite is minimum needed
  • Satellite communications permits QSO with
    operators in other countries

62
Take Aways (cont) T7
  • Satellite beacon contains info on satellite
  • 70-CM 435-438 Satellite sub-band
  • Doppler shiftchange in frequency due to motion
    thru space
  • LEO Low Earth Orbit
  • Special event station temporary station with
    activity of special significance

63
Take Aways (cont) T7
  • AMSAT Amateur Satellite.
  • Group builds/launches satellites
  • ISS International Space Station
  • Tech or higher can contact ISS

64
Take Aways T8
  • Information in FCC declaration contains special
    conditions to be observed
  • QSO and emergency call heard stop and
    immediately take the call
  • Must avoid frequencies dedicated to emergency
    unless participating in effort
  • FCC declaration of emergency legal restriction
    on frequency for emergency communications only.

65
Take Aways (cont) T8
  • No exclusive rights to a frequency without an FCC
    declaration of emergency
  • Hear an emergency reported assume its real and
    act accordingly
  • Initiate emergency call
  • Mayday, Mayday, Mayday
  • Any station come in please
  • Identify your station

66
Take Aways (cont) T8
  • Penalties for false emergency call
  • License revoked
  • Fined large sum of money
  • Sent to prison
  • Emergency communications has priority at all
    times in the Amateur Radio Service

67
Take Aways (cont) T8
  • Priority at all times on all frequencies to
    stations providing emergency communications
  • FCC authorized or actual emergency amateurs can
    communicate to stations in other radio services
  • Tactical call signs command post, weather
    center.
  • More efficient and
  • help coordinate public-service communications

68
Take Aways (cont) T8
  • Preparations
  • Check your emergency response equipment and know
    where it is
  • How to run equipment if power failure
  • Participate Drills field operations
  • Alternate source of power
  • Car or truck battery
  • Bike generator
  • Portable solar panel

69
Take Aways (cont) T8
  • In genuine emergency use any means at disposal
    to call for help on any frequency
  • Use of non-amateur frequencies or equipment in
    situations of immediate danger to property or
    life
  • Including modified amateur equipment to transmit
    on fire department frequencies

70
Take Aways (cont) T8
  • RACES Restricted to serving local, state,
    federal government emergency management agencies
  • Must register with Civil Defense organization
    before participation
  • ARES Supports Red Cross, Salvation Army, and
    National Weather Service
  • Must have an amateur radio license before joining
    an ARES group
  • When immediate threat to human life or property
    you may transmit SOS or Mayday

71
Take Aways (cont) T8
  • Avoid casual conversations during public-service
    event
  • Idle chatter may interfere with important traffic
  • FCC prohibits use of amateur radio for news
    reporting
  • Do not transmit during emergency nets unless Net
    Control permits minimizes disruptions
  • Dont transmit personal info concerning victims
    during emergencies
  • Emergency traffic has the highest priority

72
Take Aways (cont) T8
  • Of primary importance for NCS Clear strong
    signal.
  • NCS should stop all net activity when emergency
    traffic breaks in.
  • Large scale emergency occurs and no NCS you
    should open net immediately for check-ins.
  • Originating persons name must be included with
    emergency messages

73
Take Aways T9
  • Vertical antenna perpendicular to earth
  • Horizontal antenna parallel to earth
  • Beams concentrate signals in one direction
  • Quad, Yagi, and Dish are directional antennas
  • Rubber duck antenna not as effective as full
    sized
  • 10-20 times reduction in signal strength inside
    car with rubber duck versus outside antenna

74
Take Aways (cont) T9
  • Mag mount antenna good efficiency in mobile
  • Lower angle of radiation 5/8 has more gain than
    1/4 wavelength
  • Half-wave dipole shorter when frequency increases
  • 146 mHz quarter-wave 19 inches
  • Half-wave 6-meter dipole 112 inches
  • Dummy load no interferring radiation when
    testing

75
Take Aways (cont) T9
  • VHF/UHF signals not reflected by ionsphere not
    good for long distances
  • Hear VHF long distance sporadic E reflection in
    ionsphere
  • Rapid fluttering from mobiles stations picket
    fencing is term
  • You were strong, now weak move a few feet
  • Strong overloading receiver sudden bursts of
    tones or fragments of conversations
  • Directional antenna to reach distant repeater if
    buildings or obstructions block direct LOS

76
Take Aways (cont) T9
  • Coax cable most used feed line due to ease of use
    and few special installation considerations
  • Coax is commonly 50 ohms
  • SWR load matching to a transmitter
  • For efficient transfer of power and reduction of
    loss, low SWR important
  • One to one 11 perfect match
  • Directional wattmeter used for feedline and
    antenna matching

77
Take Aways (cont) T9
  • Loose connections can cause erratic SWR readings
  • SWR of 21 where some protection circuits reduce
    power
  • Power lost in feed line converts to heat by
    losses in the line
  • Losses increase with older coax exposed to
    weather
  • Black cover offers protection against untraviolet
    damage
  • Moisture is most common cause of failure for coax

78
Take Aways (cont) T9
  • Two points blocked by curvature of earth is radio
    horizon
  • VHF/UHF signals travel about a third farther than
    visual LOS earth less curved to radio waves
    than light
  • UHF signals penetrate urban areas/building
    shorter wavelength
  • Cross polarization weakens signals about 100
    times
  • Keep HT VHF/UHF antenna vertical

79
Take Aways T0
  • Guard against electrical shock
  • 3-wire plugs
  • Ground-fault
  • Common ground
  • Emergency disconnecttell everyone where it is.
  • Lowest voltage for shock 30 volts
  • Lowest current is 100 milliamperes
  • Stored charge in large capacitors can cause shock
    with power supply off
  • Fuses interrupt power in overload
  • 20 amp replacing a 5 amp potential fire
  • Green wire of 3-wire is ground

80
Take Aways (cont) T0
  • Lightning protection
  • Disconnect antenna
  • Unplug power from AC
  • Stop using equipment move to another room
  • Fire prevention most important reason for
    lightning protection
  • Recharge 12-volt battery connect to car run
    engine
  • Storage battery charge or discharge too quickly
    overheat/explode

81
Take Aways (cont) T0
  • 12-volt hazzards
  • Contain acid spill .. Cause injury
  • Short circuits damage wiring fire
  • Explosive gas if not vented
  • Antenna location away from people
  • Hard hat safety glasses on ground helping
  • Use safety belt safety glasses before climbing
    tower

82
Take Aways (cont) T0
  • Before climbing a tower
  • Arrange helper/observer
  • Inspect damage/loose hardware
  • No electrical storms nearby
  • Guy wires . Install per manufacturer
  • Never climb a crank-up tower extended
  • Stainless hardware much less likely to corrode
  • 8 foot ground rods per tower leg bonded to
    tower

83
Take Aways (cont) T0
  • Stay clear of overhead electric wires putting
    up tower
  • Safe distance if falls no closer than 10
    feet
  • VHF/UHF non-ionizing radiation
  • Excessive power absorbed can cause injury to body
  • Touch antenna during transmission possible RF
    burn
  • Body absorbs more RF energy at some frequencies
    than others . Source must be considered

84
Take Aways (cont) T0
  • Factors affecting RF exposure in excess of FCC
    limits
  • Frequency and power level
  • Distance from antenna
  • Radiation pattern of antenna
  • Actions to prevent exposure
  • Alter antenna patterns
  • Relocate antenna
  • Change station parameters power or frequency

85
Take Aways (cont) T0
  • RF exposure above 30 MHz 50 watts PEP at
    antenna
  • Determine FCC RF exposure
  • FCC OET Bulletin 65
  • Calculations on computer modeling
  • Field strength meter
  • Milliwatts sq/centimeter measure RF radiation
    exposure
  • Duty cycle amount of time transmitter is
    operating
  • Change equipment re-evaluate RF safety regs to
    stay in compliance
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