Title: Release 1.0 September 2006
1Listen First!
- When you select a frequency on which to
transmit, the first thing you should always do is
listen to determine whether the frequency is
busy. If someone is already using the frequency,
good amateur practice says you dont stomp all
over them. Besides, its just the right thing to
do!
2Repeater Manners Calling Another Station
- Since most Technicians get their start on
repeaters, it is a good idea to know how to call
another station on the repeater. For example,
how do you call another station on a repeater if
you know the station's call sign? Its simple.
Just say the station's call sign and identify
your own station. Then wait for the other
station to answer. - And guess what? If you want to call another
station not on a repeater, you do the same thing
- say the station's call sign and then identify
your own station.
3Just Looking For Some Conversation
- Suppose you dont know anyone on the band, but
you just want to talk. How do you indicate you
are looking for any station with which to make
contact? Its simple. Just say CQ followed by
your call sign. CQ means calling any station
and is the hams way of saying I just want to
talk with anyone willing to talk. -
- But be careful about one thing. If you want to
talk to anyone who might be listening on a
repeater, you dont want to use CQ. By custom,
if you want to talk on a repeater, you just
transmit your call sign. (Some hams will
transmit their call sign followed by the words
listening or monitoring. Thats OK, too, but
definitely avoid CQ on the repeater.
4Suppose You Hear A CQ
- When you hear someone transmitting CQ, and you
are willing to talk with them, what should you
transmit when responding to that call of CQ?
Again, its very simple, and the same as calling
another station. Transmit the other station's
call sign followed by your call sign, and wait
for an answer.
5Test Transmissions
- The FCC says it is perfectly OK to test your
transmitter using a brief transmission, but you
still must identify yourself. A brief test
transmission that does not include any station
identification is an illegal unidentified
transmission. Always properly identify your
station when testing! (See 97.119(a)) - When you test your transmitter, find a
frequency, listen, and if it is quiet, give your
call sign. And it is a good idea, although not
required by rule, to follow your call by the
words test or testing.
6How Often To ID When Testing
- The requirement to ID when testing is the same
as at any other time. The rule says station
identification is required at least every ten
minutes and at the end of every transmission.
7Making Your Call Sign Understood
- When conditions are bad, it is sometimes hard
to tell the difference between spoken letters
when they sound similar. For example, consider
that B, C, D, E, G, P, T, V and Z may be easily
misunderstood in noisy conditions. Fortunately,
the International Telecommunication Union (ITU)
has adopted a phonetic alphabet that is
recognized world wide. It substitutes easily
understood words for each of the letters of the
alphabet. - You dont have to know this alphabet for the
Technician exam, but you do need to remember that
these words are internationally recognized
substitutes for letters. If you are having
trouble being understood, you can give your call
sign using these recognized phonetics. For
example, KA4PUV becomes kilo alfa four papa
uniform victor. (See 97.119(b)(2))
8ITU Phonetic Alphabet
- Like we said, you do not have to know this
alphabet for the test, but just for fun lets
take a look at it. You can learn it once you get
your license! - International Telecommunication Union (ITU)
Phonetic Alphabet - A Alpha J Juliet S Sierra
- B Bravo K Kilo T Tango
- C Charlie L Lima U Uniform
- D Delta M Mike V Victor
- E Echo N November W Whiskey
- F Foxtrot O Oscar X X-ray
- G Golf P Papa Y Yankee
- H Hotel Q Quebec Z Zulu
- I India R Romeo
9Avoid Cutesy Call Signs
- Some hams like to use other older phonetic
alphabets or invent their own words when giving
their call sign phonetically. Other hams invent
cute phrases to go with their call signs. None
of these are illegal as long as you properly
identify by stating your call sign in English as
the rule requires. However, you should avoid
them. Using non-standard phonetics or cute
phrases can be a real problem because they are
not easily understood by some operators.
10Check-Up Time!
- Now lets try the questions from this group.
- You should make a note of any that you miss for
later review.
11T3A01
- Which of the following should you do when
selecting a frequency on which to transmit? - A. Call CQ to see if anyone is listening
- B. Listen to determine if the frequency is busy
- C. Transmit on a frequency that allows your
signals to be heard - D. Check for maximum power output
12T3A01 Answer - B
- This is a common sense answer. Before you
talk, always listen to see whether someone else
is already using the frequency.
13T3A02
- How do you call another station on a repeater if
you know the station's call sign? - A. Say "break, break" then say the station's call
sign - B. Say the station's call sign then identify your
own station - C. Say "CQ" three times then the other station's
call sign - D. Wait for the station to call "CQ" then answer
it
14T3A02 Answer - B
- Call the other station by saying the other
stations call sign first, followed by your own.
15T3A03
- How do you indicate you are looking for any
station with which to make contact? - A. CQ followed by your callsign
- B. RST followed by your callsign
- C. QST followed by your callsign
- D. SK followed by your callsign
16T3A03 Answer - A
- To invite any station listening to answer your
call, always call CQ.
17T3A04
- What should you transmit when responding to a
call of CQ? - A. Your own CQ followed by the other station's
callsign - B. Your callsign followed by the other station's
callsign - C. The other station's callsign followed by your
callsign - D. A signal report followed by your callsign
18T3A04 Answer - C
- When answering a station, the procedure is the
same as calling the station... Give their call
sign first, followed by your own.
19T3A05
- What term describes a brief test transmission
that does not include any station identification?
- A. A test emission with no identification
required - B. An illegal un-modulated transmission
- C. An illegal unidentified transmission
- D. A non-voice ID transmission
20T3A05 Answer - C
- Any time an operator transmits, that operator
must identify by giving his or her call sign at
least every ten minutes and at the end of the
transmission. It is illegal not to identify, so
this would be an illegal unidentified
transmission.
21T3A06
- What must an amateur do when making a
transmission to test equipment or antennas? - A. Properly identify the station
- B. Make test transmissions only after 1000 PM
local time - C. Notify the FCC of the test transmission
- D. State the purpose of the test during the test
procedure
22T3A06 Answer - A
- Regardless of why the operator is transmitting,
he or she must always properly identify the
station. There are no special identification
procedures for testing equipment.
23T3A07
- Which of the following is true when making a
test transmission? - A. Station identification is not required if the
transmission is less than 15 seconds - B. Station identification is not required if the
transmission is less than 1 watt - C. Station identification is required only if
your station can be heard - D. Station identification is required at least
every ten minutes and at the end of every
transmission.
24T3A07 Answer - D
- There are no special identification procedures
for testing equipment. The identification
requirements are the same as for any other type
of transmission - at least every ten minutes and
at the end of every transmission.
25T3A08
- What is the meaning of the procedural signal
"CQ"? - A. Call on the quarter hour
- B. New antenna is being tested (no station should
answer) - C. Only the called station should transmit
- D. Calling any station
26T3A08 Answer - D
- CQ means calling any station. When you call
CQ, you are inviting any ham who is listening to
contact you.
27T3A09
- Why should you avoid using cute phrases or word
combinations to identify your station? - A. They are not easily understood by some
operators - B. They might offend some operators
- C. They do not meet FCC identification
requirements - D. They might be interpreted as codes or ciphers
intended to obscure your identification
28T3A09 Answer - A
- 97.119(b)(2)
- (b) The call sign must be transmitted with an
emission authorized for the transmitting channel
in one of the following ways -
- (2) By a phone emission in the English language.
Use of a standard phonetic alphabet as an aid for
correct station identification is encouraged - When an operator makes up his or her own
phonetics (which is not illegal), the phonetics
are not always readily understood by others. You
should learn the standard phonetic alphabet used
by radio operators.
29T3A10
- What brief statement is often used in place of
"CQ" to indicate that you are listening for calls
on a repeater? - A. Say "Hello test" followed by your call sign
- B. Say your call sign
- C. Say the repeater call sign followed by your
call sign - D. Say the letters "QSY" followed by your call
sign
30T3A10 Answer - B
- On a repeater, it is generally considered bad
manners to call CQ. When using a repeater to
invite a conversation, the generally accepted
procedure is to simply state your call sign.
That is enough to let others know you are
available for a contact.
31T3A11
- Why should you use the International
Telecommunication Union (ITU) phonetic alphabet
when identifying your station? - A. The words are internationally recognized
substitutes for letters - B. There is no advantage
- C. The words have been chosen to represent
amateur radio terms - D. It preserves traditions begun in the early
days of amateur radio
32T3A11 Answer - A
- 97.119(b)(2)
- The FCC encourages the use of these phonetics.
They are used by radio operators, pilots,
mariners and the military services of many
countries around the world, so they are widely
recognized, even among non-English speaking
people.
33Group T3B
- Group T3B covers the importance of the use of
minimum power and amateur radio band plans. It
also covers repeater coordination and certain
sub-bands with restricted modes.
34Band Plans
- The FCC has established the amateur radio bands
and has divided the bands up into sub-bands for
different types of operation. Sometimes that
isnt enough, since there are several different
modes using the use digital or data frequencies,
and these modes could conflict with each other. - For that reason, the amateur community has come
up with a number of band plans. A band plan is a
voluntary guideline, beyond the divisions
established by the FCC for using different
operating modes within an amateur band. It is a
sort of gentlemens agreement that lets several
modes share limited frequencies. Band plans are
voluntary. No rule makes them mandatory.
35Repeater Band Plans
- Repeaters almost always transmit on one
frequency and receive on another. We call this
split frequency operation. To make the best use
of the frequencies available for repeaters, each
area has a recognized frequency coordination body
responsible for repeater band plans. For
example, in the southeastern U.S., this body is
SERA, or the Southeastern Repeater Association.
36Repeater Coordination
- These recognized frequency coordination
organizations perform a valuable service by
coordinating repeaters. Basically, a person or
group that wants to put up a repeater furnishes
information about the repeater location, power,
antenna height and other data, and the local
frequency coordinator assigned the repeater a
frequency pair. The frequency pair is chosen to
avoid interfering with other repeaters. This
process is called repeater coordination. The
main purpose of repeater coordination is to
reduce interference and promote proper use of the
available frequency spectrum.
37Who Is Responsible?
- Recall that repeaters are automatically
controlled, so the repeater control operator is
generally not required to be at the control point
all the time. Suppose a ham begins using the
repeater and starts using obscene language? Who
is accountable if a repeater station
inadvertently retransmits such communications
that violate FCC rules? Since the repeater
control operator is not required to be there all
the time, the FCC says it is the transmitting
station that will be held accountable. (See
97.205(g))
38How Much Power Should You Use?
- The FCC says that an amateur must use the
minimum transmitter power necessary to carry out
the desired communication. (See 97.313(a)) - The maximum power level allowed to hams is
quite high, but the FCC has made it clear that
hams must use only the power needed. Using
excess power may create unnecessary interference
and should be avoided.
39More Memory Work
- Some amateur bands are divided by the FCC into
mode restricted sub bands. When a sub band is
restricted by mode, only certain modes can be
used on that portion of the band. The following
bands available to Technician class licensees
have mode restricted sub-bands the 6-meter,
2-meter, and 1 1/4-meter bands. You need to
remember this. (See 97.305(c))
40And Still More Memory Work
- Recall that the 6 meter band extends from 50
megahertz to 54 megahertz. The only emission
mode permitted in the 50 to 50.1 megahertz sub
band is CW (also known as continuous wave and
used for Morse code). - Also recall that the 2 meter band goes from 144
megahertz to 148 megahertz. Likewise, the only
emission mode permitted in the restricted
sub-band at 144.0 to 144.1 megahertz is also CW. - Remember both of these as well.
- (See 97.305 (a)(c))
41Check-Up Time!
- Now lets try the questions from this group.
- You should make a note of any that you miss for
later review.
42T3B01
- What is a band plan?
- A. A voluntary guideline, beyond the divisions
established by the FCC for using different
operating modes within an amateur band - B. A guideline from the FCC for making amateur
frequency band allocations - C. A guideline for operating schedules within an
amateur band published by the FCC - D. A plan devised by a local group
43T3B01 Answer - A
- Band plans are voluntary, and are developed by
groups such as the ARRL and others working
together. They help keep some order on the bands
by suggesting frequencies for different modes of
operation, thus minimizing interference.
44T3B02
- Which of the following statements is true of
band plans? - A. They are mandated by the FCC to regulate
spectrum use - B. They are mandated by the ITU
- C. They are voluntary guidelines for efficient
use of the radio spectrum - D. They are mandatory only in the US
45T3B02 Answer - C
- The key word to remember about band plans is
voluntary. A ham can not follow the band plan
and still be arguably legal. However,
disregarding band plans when operating is not
good amateur practice. See 97.101(a).
46T3B03
- Who developed the band plans used by amateur
radio operators? - A. The US Congress
- B. The FCC
- C. The amateur community
- D. The Interstate Commerce Commission
47T3B02 Answer - C
- The amateur community is all of us as
represented by various clubs and amateur
organizations such as the ARRL.
48T3B04
- Who is in charge of the repeater frequency band
plan in your local area? - A. The local FCC field office
- B. RACES and FEMA
- C. The recognized frequency coordination body
- D. Repeater Council of America
49T3B04 Answer - C
- Having groups to coordinate repeaters results
in less interference between repeaters and better
communications for all amateurs. In the
southeast U.S., the Southeast Repeater
Association (SERA) coordinates repeater
frequencies through volunteers who used
sophisticated software and solid engineering
practices to assign repeater frequencies.
50T3B05
- What is the main purpose of repeater
coordination? - A. To reduce interference and promote proper use
of spectrum - B. To coordinate as many repeaters as possible in
a small area - C. To coordinate all possible frequencies
available for repeater use - D. To promote and encourage use of simplex
frequencies
51T3B05 Answer - A
- When repeaters are coordinated, nearby
repeaters will not operate on the same
frequencies. This prevents each repeater from
interfering with the other making both repeaters
useless.
52T3B06
- Who is accountable if a repeater station
inadvertently retransmits communications that
violate FCC rules? - A. The repeater trustee
- B. The repeater control operator
- C. The transmitting station
- D. All of these answers are correct
53T3B06 Answer - C
- 97.205(g)
- The control operator of a repeater that
retransmits inadvertently communications that
violate the rules in this Part is not accountable
for the violative communications. - A repeater owner spends a lot of money to make
repeaters available to the amateur community,
almost always at no expense to the community.
The rules relieve the control operator from
liability for the unlawful actions of a repeater
user. Every ham is accountable for what he or
she says over the air, whether on a repeater, or
on simplex. Watch what you say!
54T3B07
- Which of these statements is true about legal
power levels on the amateur bands? - A. Always use the maximum power allowed to ensure
that you complete the contact - B. An amateur may use no more than 200 Watts PEP
to make an amateur contact - C. An amateur may use up to 1500 Watts PEP on any
amateur frequency - D. An amateur must use the minimum transmitter
power necessary to carry out the desired
communication
55T3B07 Answer - D
- 97.313(a)
- An amateur station must use the minimum
transmitter power necessary to carry out the
desired communications. - Use only the power you need to communicate.
Your signal will be cleaner and less likely to
cause harmful interference to others.
56T3B08
- Which of the bands available to Technician class
licensees have mode restricted sub-bands? - A. The 6-meter, 2-meter, and 70-centimeter bands
- B. The 2-meter and 13-centimeter bands
- C. The 6-meter, 2-meter, and 1 1/4-meter bands
- D. The 2-meter and 70-centimeter bands
57T3B08 Answer - C
- 97.305(c)
- This subsection contains another important
table. You need to know the restrictions placed
on the bands you will use as a Technician
licensee.
58T3B09
- What emission modes are permitted in the
restricted sub-band at 50.0-50.1 MHz? - A. CW only
- B. CW and RTTY
- C. SSB only
- D. CW and SSB
59T3B09 Answer - A
- 97.305 (a)(c)
- There are only three possible questions dealing
with modes on specific bands. Chances are about
1 in 3 that you will have one on your exam.
However, there is a 100 chance you will need to
know this information when you get ready to make
that first amateur contact. Dont wait until
then to learn what is allowed!
60T3B10
- What emission modes are permitted in the
restricted sub-band at 144.0-144.1 MHz? - A. CW only
- B. CW and RTTY
- C. SSB only
- D. CW and SSB
61T3B10 Answer - A
- 97.305 (a)(c)
- Heres a hint. The lower end of each band is
generally reserved for CW.
62Group T3C
- Group T3C covers some of the most important
aspects of amateur radio - courtesy and respect
for others, sensitive subject areas, and obscene
and indecent
63Breaking In On Another Conversation
- In the CB world, it is considered perfectly
normal to break into another conversation by
saying break break or breaker. That is NOT
the case in the amateur world! - When you want to break into a conversation
between two stations that are using the
frequency, you should simply say your call sign
between their transmissions. Most hams dont
care too much for that CB slang!
64More Repeater Manners
- Good repeaters are sometimes very busy. Some
things you should do when using a repeater
include - - Monitor before transmitting and keep
transmissions short - - Identify legally
- - Use only the minimum amount of transmitter
power necessary
65Staying Legal
- Before responding to another stations call, you
should always make sure you are operating on a
permissible frequency for your license class. We
know it sounds silly, but if you are not careful,
you can easily stray outside of your privileges.
66I Was Here First!
- There are only so many frequencies available.
If two amateur stations want to use the same
frequency, the FCC says no frequency will be
assigned for the exclusive use of any station and
neither operator has priority. (See 97.101(b)) - When there a conflict about the use of a
frequency, nobody has an exclusive right to that
frequency, so the operators will need to work it
out between themselves hopefully as adults!
67More on Indecent and Obscene Language
- You recall that indecent and obscene language
is prohibited in the Amateur Service. Why?
There are several reasons, including - - It is offensive to some individuals
- - Young children may intercept amateur
communications with readily available receiving
equipment - - And most importantly, such language is
specifically prohibited by FCC Rules - (See 97.113(a)(4))
68So What Exactly Is Obscene or Indecent?
- There is no official list of prohibited obscene
and indecent words that should not be used in
amateur radio. There isnt an unofficial one
either. You just have to use your good common
sense here. If you dont think you can use common
sense, perhaps you need to take up another hobby!
69Racial And Ethnic Slurs
- Speaking of no official list, racial and ethnic
slurs are not necessarily obscene or indecent
speech and may not be illegal because of the
First Amendment. - However, legal or not, amateur radio operators
should avoid the use of racial or ethnic slurs
when talking to other stations, because they are
offensive to some people and reflect a poor
public image on all amateur radio operators.
Dont use them!
70We All Make Mistakes
- You are not even licensed yet, but when you do
get your license, you can bet on one thing you
will make mistakes! Once you have learned the
ropes and you hear another new ham having trouble
with his or her station, you should contact the
person and (tactfully) offer to help with the
problem. This is not a rule, but it is amateur
tradition and the right thing to do!
71OK, So What Can I Talk About?
- Other than indecent or obscene speech, just
about anything else is fair game. You can engage
in political discussions, tell jokes and stories,
or talk about religion. But regardless of what
you talk about, you should always bear in mind
that others are listening, and some folks may be
more easily offended than others. Even if
something is legal, use good judgment about what
you say on the air, and youll never go wrong. - (See 97.113(a)(4))
72Good Engineering and Amateur Practices
- No matter how many rules there are, they can
never cover everything. So when circumstances
are not specifically covered by FCC rules, what
general operating standard must be applied to
amateur station operation? The FCC says that if
nothing else applies, the standard is always
going to be good engineering and amateur
practices. (See 97.101 (a)) - This phrase is not really defined, but it
basically means doing what a good engineer or ham
would do under similar circumstances.
73Check-Up Time!
- Now lets try the questions from this group.
- You should make a note of any that you miss for
later review.
74T3C01
- What is the proper way to break into a
conversation between two stations that are using
the frequency? - A. Say your call sign between their transmissions
- B. Wait for them to finish and then call CQ
- C. Say "Break-break" between their transmissions
- D. Call one of the operators on the telephone to
interrupt the conversation
75T3C01 Answer - A
- All you need to do is to say your call sign
between transmissions. Unless there is an
emergency, break-break should not be used. It
is acceptable on CB, but frowned upon on the ham
bands.
76T3C02
- What is considered to be proper repeater
operating practice? - A. Monitor before transmitting and keep
transmissions short - B. Identify legally
- C. Use the minimum amount of transmitter power
necessary - D. All of these answers are correct
77T3C02 Answer - D
- All of these answers are good amateur
practice, as well as being required by rule.
They are not only good practice for amateur
frequencies, but for all contacts!
78T3C03
- What should you do before responding to another
stations call? - A. Make sure you are operating on a permissible
frequency for your license class - B. Adjust your transmitter for maximum power
output - C. Ask the station to send their signal report
and location - D. Verify the other station's license class
79T3C03 Answer - A
- You are responsible for the proper operation of
your station, not the other persons. Keep your
power to the minimum required to communicate, and
make sure you are legal to operate on that
frequency!
80T3C04
- What rule applies if two amateur stations want
to use the same frequency? - A. The station operator with a lesser class of
license must yield the frequency to a
higher-class licensee - B. The station operator with a lower power output
must yield the frequency to the station with a
higher power output - C. No frequency will be assigned for the
exclusive use of any station and neither has
priority - D. Station operators in ITU Regions 1 and 3 must
yield the frequency to stations in ITU Region 2
81T3C04 Answer - C
- 97.101(b)
- Each station licensee and each control operator
must cooperate in selecting transmitting channels
and in making the most effective use of the
amateur service frequencies. No frequency will be
assigned for the exclusive use of any station. - No one owns any frequency. In the case of
conflicts between operators, the matter should be
resolved in an adult manner.
82T3C05
- Why is indecent and obscene language prohibited
in the Amateur Service? - A. Because it is offensive to some individuals
- B. Because young children may intercept amateur
communications with readily available receiving
equipment - C. Because such language is specifically
prohibited by FCC Rules - D. All of these choices are correct
83T3C05 Answer - D
- 97.113(a)(4)
- No amateur station shall transmit
-
- (4) Music using a phone emission except as
specifically provided elsewhere in this section
communications intended to facilitate a criminal
act messages encoded for the purpose of
obscuring their meaning, except as otherwise
provided herein obscene or indecent words or
language or false or deceptive messages, signals
or identification - Not only is it against the rules, it is just
plain rude, so the other answers are correct as
well. Consider that when you speak into the
microphone people all over the world can possibly
hear you. This is especially true with many
repeaters now tied into Echolink and IRLP.
84T3C06
- Why should amateur radio operators avoid the use
of racial or ethnic slurs when talking to other
stations? - A. Such language is prohibited by the FCC
- B. It is offensive to some people and reflects a
poor public image on all amateur radio operators - C. Some of the terms used may be unfamiliar to
other operators - D. You transmissions might be recorded for use in
court
85T3C06 Answer - B
- The FCC prohibits indecent or obscene language.
Racial slurs may not fit into either category,
but they do reflect poorly on all hams.
86T3C07
- What should you do if you hear a newly licensed
operator that is having trouble with their
station? - A. Tell them to get off the air until they learn
how operate properly - B. Report them to the FCC
- C. Contact them and offer to help with the
problem - D. Move to another frequency
87T3C07 Answer - C
- Amateur radio has a rich tradition of Elmers
more experienced hams who help newcomers learn
the ropes. As you gain experience, you should
always be willing to offer a helping hand instead
of ignoring the problem or criticizing the new
operator.
88T3C08
- Where can an official list be found of
prohibited obscene and indecent words that should
not be used in amateur radio? - A. On the FCC web site
- B. There is no official list of prohibited
obscene and indecent words - C. On the Department of Commerce web site
- D. The official list is in public domain and
found in all amateur study guides
89T3C08 Answer - B
- 97.113(a)(4)
- There is NO list of forbidden words. Its up
to you to keep your speech decent. When in
doubt, just dont say it.
90T3C09
- What type of subjects are not prohibited
communications while using amateur radio? - A. Political discussions
- B. Jokes and stories
- C. Religious preferences
- D. All of these answers are correct
91T3C09 Answer - D
- 97.113(a)(4)
- You should know by now that the only prohibited
speech is obscene or indecent speech. However,
you should always bear in mind that many people
can be listening to what you say. Legal or not,
if it is likely to be offensive, seriously
consider not saying it!
92T3C10
- When circumstances are not specifically covered
by FCC rules, what general operating standard
must be applied to amateur station operation? - A. Designated operator control
- B. Politically correct control
- C. Good engineering and amateur practices
- D. Reasonable operator control
93T3C10 Answer - C
- 97.101 (a)
- In all respects not specifically covered by FCC
Rules each amateur station must be operated in
accordance with good engineering and good amateur
practice.
94Group T3D
- Group T3D covers how amateurs should deal with
interference to and from consumer devices. It
also covers public relations, and intentional and
unintentional interference caused by an amateur
operator.
95Im Interfering?!?
- Suppose you receive a report that your
transmissions are causing splatter or
interference on nearby frequencies. What should
you do? - The first thing you should do is stop
transmitting and check your transmitter for off
frequency operation or spurious emissions. If
your equipment is not working right, you dont
want to use it until you find out what the
problem is.
96When You Accidentally Butt In
- If you unintentionally interfere with another
station or stations, the best course of action is
to properly identify your station and move to a
different frequency. If the other hams were
there first, and you did not realize it until
after you spoke, the polite thing to do is ID as
required by the FCC and move on to an empty
frequency.
97Who Owns The Frequency?
- OK, by now you should know that no station has
exclusive use of any frequency. There is one
exception, though. - If the FCC declares a communications emergency,
it can specify that certain amateur frequencies
may be used only by people working the emergency.
Otherwise, repeat after me - no station has
exclusive use of any frequency!
98Youre On TV Your Neighbors!
- When signals from your transmitter are causing
front end overload in your neighbor's television
receiver, your neighbor is not likely to be
happy. Hell be even less happy when he finds
out that as long as your equipment is operating
properly, he as the owner of the television
receiver is responsible for fixing the problem.
99Why IS The TV Owner Responsible?
- Heres why. The FCC has set certain standards
for the operation of your transmitter. If you
are within those standards, you are in compliance
with the law. Those standards are developed to
insure that a well-designed TV will not be
bothered by interference. Unfortunately, cheap
consumer electronics products are sometimes
under-engineered and susceptible to interference
from legal equipment. When that happens, the
owner has to fix it. - But heres where you can shine as a ham. You
are in a good position to (carefully) explain
this to your neighbor, and more importantly, help
him or her solve the problem. Better to make a
friend than an enemy!
100Youre On the Other Neighbors Phone!
- Just like cheap TVs, cheap phones are subject
to interference from amateur equipment, even when
the equipment is operating properly. The major
cause of this interference is the same as well.
It is likely that the telephone was not equipped
with adequate interference protection when it
was manufactured. As long as your gear is
working properly, it is not your fault. (But
dont let that stop you from trying to help!)
101Still Another Interference Problem!
- Sometimes there is a break in a cable
television transmission line. This could have an
effect on your amateur operations because TV
interference may result when the amateur station
is transmitting, or interference may occur to the
amateur receiver. - Signals from your transmitter can sometimes
penetrate the break and be carried into nearby TV
sets via the cable, or the broken cable can act
as a strong TV signal source that can possibly
interfere with your receiver.
102Use A Dummy Load, Dummy!
- When you are testing your transmitter, you want
to avoid putting out signals that could cause
interference. There is a device called a dummy
load that is connected to your radio where the
antenna is usually connected. When you connect
the dummy load and operate your transmitter,
nearly all of the signal generated by your
transmitter is converted to heat energy, and the
potential for interference is greatly reduced!
The best way to reduce on the air interference
when testing your transmitter is to use a dummy
load.
103Use A Dummy Load to Prevent Harmful Interference!
104FCC Rules in an Emergency
- When you are using amateur radio at the request
of public service officials or at the scene of an
emergency, do you know what rules apply? You
should. They are the same rules that apply all
the time. FCC rules always apply to amateur
operations. (See 97.103(a)
105RACES and ARES
- There are two very important groups to remember
for amateur emergency communications. They are
Radio Amateur Civil Emergency Service (RACES) and
Amateur Radio Emergency Service (ARES). RACES
and ARES have in common that they both provide
communications during emergencies.
106Receiver Front-end Overload
- A radio receiver is a wonderful thing. It can
take the tiniest bit of electricity from the air
generated half a world away and turn it into the
voice of the person who generated it. A radio
receiver is also a very sensitive piece of
equipment. It can be overloaded by strong
signals very close to it. This happens because
of something called receiver front-end
overload. Receiver front-end overload is
interference caused by strong signals from a
nearby source.
107Check-Up Time!
- Now lets try the questions from this group.
- You should make a note of any that you miss for
later review.
108T3D01
- What should you do if you receive a report that
your transmissions are causing splatter or
interference on nearby frequencies? - A. Increase transmit power
- B. Change mode of transmission
- C. Report the interference to the equipment
manufacturer - D. Check transmitter for off frequency operation
or spurious emissions
109T3D01 Answer - D
- If you have reason to believe your transmitter
is not working properly, you should stop
transmitting until you determine whether you have
an equipment problem. If so, you should
determine exactly what the problem is and correct
it.
110T3D02
- Who is responsible for taking care of the
interference if signals from your transmitter are
causing front end overload in your neighbor's
television receiver? - A. You alone are responsible, since your
transmitter is causing the problem - B. Both you and the owner of the television
receiver share the responsibility - C. The FCC must decide if you or the owner of the
television receiver is responsible - D. The owner of the television receiver is
responsible
111T3D02 Answer - D
- Be careful here. If your equipment is working
properly within FCC guidelines, and the TV set is
still experiencing interference, it is probably
due to the fact that the TV is not properly
designed to prevent front end overload. In that
case, it is the problem of the owner to solve.
HOWEVER, to help yourself and your hobby, you
should work with your neighbor to find solutions
to the problem.
112T3D03
- What is the major cause of telephone
interference? - A. The telephone wiring is inadequate
- B. Tropospheric ducting at UHF frequencies
- C. The telephone was not equipped with adequate
interference protection when manufactured. - D. Improper location of the telephone in the home
113T3D03 Answer - C
- Many inexpensive consumer devices allow
interference from radio frequency (RF) sources.
Often this is due to poor design or cost cutting
by eliminating a few simple parts that would
prevent the problem. Either way, the consumer
loses and the amateur is often blamed for the
problem. It is very important that you work with
your neighbor to locate and fix the problem, even
though it may not be not required by law.
114T3D04
- What is the proper course of action if you
unintentionally interfere with another station? - A. Rotate your antenna slightly
- B. Properly identify your station and move to a
different frequency - C. Increase power
- D. Change antenna polarization
115T3D04 Answer - B
- If you become the interfering station, you have
an obligation to cease the interference. The
best way is to properly ID and then move off the
frequency.
116T3D05
- When may you deliberately interfere with another
station's communications? - A. Only if the station is operating illegally
- B. Only if the station begins transmitting on a
frequency you are using - C. Never
- D. You may cause deliberate interference because
it can't be helped during crowded band conditions
117T3D05 Answer - C
- 97.101(d)
- Deliberate interference is NEVER lawful, and
there is no justification for it.
118T3D06
- Who has exclusive use of a specific frequency
when the FCC has not declared a communication
emergency? - A. Any net station that has traffic
- B. The station first occupying the frequency
- C. Individuals passing health and welfare
communications - D. No station has exclusive use of any frequency
119T3D06 Answer - D
- No station or net "owns" any frequency.
However, it is good amateur practice to yield to
the stations there first, or if necessary, ask
them to move. Even if they don't, to attempt to
communicate over them is deliberate interference
and is unlawful.
120T3D07
- What effect might a break in a cable television
transmission line have on amateur communications? - A. A break cannot affect amateur communications
- B. Harmonic radiation from the TV may cause the
amateur transmitter to transmit off-frequency - C. TV interference may result when the amateur
station is transmitting, or interference may
occur to the amateur receiver - D. The broken cable may pick up very high
voltages when the amateur station is transmitting
121T3D07 Answer - C
- The cable acts as an antenna. If the shielding
is broken, some of the radio frequency (RF)
emissions may get from the break to a nearby
amateur receiver, causing interference. In the
same way, RF from your antenna may penetrate the
break, causing interference in the TV receiver.
122T3D08
- What is the best way to reduce on the air
interference when testing your transmitter? - A. Use a short indoor antenna when testing
- B. Use upper side band when testing
- C. Use a dummy load when testing
- D. Use a simplex frequency instead of a repeater
frequency
123T3D08 Answer - C
- A good dummy load will absorb nearly all of the
RF energy from your transmitter, minimizing the
chances of interference to other stations.
124T3D09
- What rules apply to your station when using
amateur radio at the request of public service
officials or at the scene of an emergency? - A. RACES
- B. ARES
- C. FCC
- D. FEMA
125T3D09 Answer - C
- FCC rules always apply to the use of an amateur
station!
126T3D10
- What do RACES and ARES have in common?
- A. They represent the two largest ham clubs in
the United States - B. One handles road traffic, the other weather
traffic - C. Neither may handle emergency traffic
- D. Both organizations provide communications
during emergencies
127T3D10 Answer - D
- RACES (Radio Amateur Civil Emergency Service)
and ARES (Amateur Radio Emergency Communications)
are both organizations that provide emergency
communications services.
128T3D11
- What is meant by receiver front-end overload?
- A. Too much voltage from the power supply
- B. Too much current from the power supply
- C. Interference caused by strong signals from a
nearby source - D. Interference caused by turning the volume up
too high
129T3D11 Answer - C
- Strong signals from a nearby source, whether or
not it is on the same frequency, can overload a
receiver, making it temporarily useless for
receiving other stations. If the transmitted
signal is very strong or very close, it can
permanently damage the receiver.
130Three Down, Seven to Go!
- This concludes Study Guide 3.
- Once you are satisfied that you can answer 80 of
the questions in this Sub-element, you are ready
to move on to Study Guide 4.