Technician Licensing Class

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Technician Licensing Class
Repeaters
Page 79 to 85
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Amateur Radio Technician ClassElement 2 Course
Presentation

• ELEMENT 2 SUB-ELEMENTS (Groupings)
• About Ham Radio
• Call Signs
• Control
• Mind the Rules
• Tech Frequencies
• Your First Radio
• Going On The Air!
• Repeaters
• Emergency!
• Weak Signal Propagation

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Amateur Radio Technician ClassElement 2 Course
Presentation

• ELEMENT 2 SUB-ELEMENTS (Groupings)
• Talk to Outer Space!
• Your Computer Goes Ham Digital!
• Multi-Mode Radio Excitement
• Run Some Interference Protection
• Electrons Go With the Flow!
• Its the Law, per Mr. Ohm!
• Go Picture These!
• Antennas
• Feed Me with Some Good Coax!
• Safety First!

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Repeaters
When you get your license, LISTEN for 1 week
on a repeater to get the feel for how to
communicate.
Before you press the PTT switch on your new
radio, LISTEN to make sure the frequency is
clear for use.
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Repeater Operation
Output Freq 145.15 MHz
Input Freq 144.55 MHz
Offset 600 kHz
60 miles
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Repeaters

• T1F9 A Repeater station is the type of amateur
  station that simultaneously retransmits the
  signal of another amateur station on a different
  channel or channels.
• T1D7 Amateur station are authorized to
  automatically retransmit the radio signals of
  other amateur stations when the signals are from
  an auxiliary, repeater, or space station.

A repeater remote, automatic
receiver-transmitter
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Repeaters

• T4B11 The difference between the repeater's
  transmit and receive frequencies describes the
  common meaning of the term repeater offset.
• T2A1 The most common repeater frequency offset
  in the 2 meter band is plus or minus 600
  kHz.
• T2A3 Plus or minus 5 MHz is a common repeater
  frequency offset in the 70 cm band.

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Repeaters

• T2B4 Common problems that cause you to be able
  to hear but not access a repeater even when
  transmitting with the proper offset
• The repeater receiver requires an audio burst for
  access
• The repeater receiver requires a CTCSS tone for
  access
• CTCSS Continuous Tone Control Squelch System
• The repeater receiver may require a DCS tone
  sequence for access
• DCS Digital Code Squelch
• All of these choices are correct.
• T2B2 CTCSS is the term used to describe the
  use of a sub-audible tone transmitted with
  normal voice audio to open the squelch of a
  receiver.
• Continuous Tone-Coded Squelch System
• Also called a PL tone.

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Repeaters
What repeaters really look like.
Dallas, Tx 442.025 UHF Repeater K5TIT
McKinney, Tx 442.575 UHF Repeater N5GI
McKinney, Tx 145.350 VHF Repeater N5GI
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Repeaters

• T1A8 A Frequency coordinator recommends
  transmit/receive channels and other parameters
  for auxiliary and repeater stations.
• T1A9 Who picks the Freq. Coord? We do! Amateur
  operators in a local or regional area that are
  eligible to be auxiliary or repeater stations
  select a frequency coordinator.
• T1A11 An auxiliary station transmits signals
  over the air from a remote receive site to a
  repeater for retransmission.
• T1F5 Call sign identification is required for a
  station transmitting phone signals by sending the
  call sign using CW or phone emission.

Repeaters can identify with a voice message
announcing their call sign, or use Morse code to
send out their station call letters
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Element 2 Technician Class Question Pool
Element 2 Technician Class Question Pool
Repeaters
Valid July 1, 2010 Through June 30, 2014
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T1F09 What type of amateur station
simultaneously retransmits the signal of another
amateur station on a different channel or
channels?

1. Beacon station
2. Earth station
3. Repeater station
4. Message forwarding station

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T1D07 When is an amateur station authorized to
automatically retransmit the radio signals of
other amateur stations?

1. When the signals are from an auxiliary, beacon,
   or Earth station
2. When the signals are from an auxiliary, repeater,
   or space station
3. When the signals are from a beacon, repeater, or
   space station
4. When the signals are from an Earth, repeater, or
   space station

A R S
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T4B11 Which of the following describes the common
meaning of the term repeater offset?

1. The distance between the repeaters transmit and
   receive antennas
2. The time delay before the repeater timer resets
3. The difference between the repeaters transmit
   and receive frequencies
4. The maximum frequency deviation permitted on the
   repeaters input signal

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T2A01 What is the most common repeater frequency
offset in the 2 meter band?

1. Plus 500 kHz
2. Plus or minus 600 kHz
3. Minus 500 kHz
4. Only plus 600 kHz

? 600
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T2A03 What is a common repeater frequency offset
in the 70 cm band?

1. Plus or minus 5 MHz
2. Plus or minus 600 kHz
3. Minus 600 kHz
4. Plus 600 kHz

? 5
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T2B04 Which of the following common problems
might cause you to be able to hear but not access
a repeater even when transmitting with the proper
offset?

1. The repeater receiver requires audio tone burst
   for access
2. The repeater receiver requires a CTCSS tone for
   access
3. The repeater receiver may require a DCS tone
   sequence for access
4. All of these choices are correct

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T2B02 What is the term used to describe the use
of a sub-audible tone transmitted with normal
voice audio to open the squelch of a receiver?

1. Carrier squelch
2. Tone burst
3. DTMF
4. CTCSS

CTCSS
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T2A09 What brief statement is often used in place
of "CQ" to indicate that you are listening on a
repeater?

1. Say "Hello test" followed by your call sign
2. Say your call sign
3. Say the repeater call sign followed by your call
   sign
4. Say the letters "QSY" followed by your call sign

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Repeater Coordination

• Frequencies
• Locations
• Range (power, antenna, height, etc.)
• Modes

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T1A08 Which of the following entities recommends
transmit/receive channels and other parameters
for auxiliary and repeater stations?

1. Frequency Spectrum Manager
2. Frequency Coordinator
3. FCC Regional Field Office
4. International Telecommunications Union

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T1A09 Who selects a frequency coordinator?

1. The FCC Office of Spectrum Management and
   Coordination Policy
2. The local chapter of the Office of National
   Council of Independent Frequency Coordinators
3. Amateur operators in a local or regional area
   whose stations are eligible to be auxiliary or
   repeater stations
4. Regional field Office

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T1A11 Which of the following stations transmits
signals over the air from a remote receive site
to a repeater for retransmission?

1. Beacon station
2. Relay station
3. Auxiliary station
4. Message forwarding station

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T1F05 What method of call sign identification is
required for a station transmitting phone signals?

1. Send the call sign followed by the indicator RPT
2. Send the call sign using CW or phone emission
3. Send the call sign followed by the indicator R
4. Send the call sign using only phone emission