Tactical callsigns are commonly used to simplify communications in an emergency or service net, such as a race or a parade. Some examples of a tactical callsign that might be used would be: "Race Headquarters", "Shadow" (for the operator who is with the race director), "700 east" (street name where they are located), "net control" (for station coordinating the net), etc.
You might think at first that it would be illegal to use callsigns other than your FCC-granted call, but in actuality the requirement is only that you identify with your FCC-granted call once every 10 minutes and at the end of your conversation. Therefore, it is okay to use a tactical call for calling, as long as you identify with your real callsign once every 10 minutes and in your last transmission. It is not uncommon to hear a message such as "All stations who have transmitted in the last ten minutes please identify now" during a tactical net to remind everyone to identify using their callsign.
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The rule when using tactical identifiers is the same as when not using tactical identifiers, it's every 10 minutes and at the end of each communication. What they're getting at, is that even though you might be "Race Headquarters" you still have to give your amateur radio call sign every 10 minutes.
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97.119 Station identification.
(a) Each amateur station, except a space station or telecommand station, must transmit its assigned call sign on its transmitting channel at the end of each communication, and at least every ten minutes during a communication, for the purpose of clearly making the source of the transmissions from the station known to those receiving the transmissions. No station may transmit unidentified communications or signals, or transmit as the station call sign, any call sign not authorized to the station.
So you do not have to transmit your callsign at the beginning, but you must every 10 minutes and at the end of the communication.
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You may use any language you wish for communications over Amateur Radio in the United States, but when identifying your station you must use English.
When you give your callsign always use English letters and/or the English phonetic alphabet.
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Indicators are never used when transmitting phone signals (phone means you're just talking with voice); you just use your callsign. You can identify with either phone (voice) or CW (Continuous Wave, which means morse code). Repeaters often use morse code for identification.
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Mnemonic: Stroke, Slash, Slant = all the Same
Thus All of these choices are correct
A self assigned indicator will be used to let others know when you are not operating at your normal licensed station location. You would sign with your call sign followed by a code indicating your current location.
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When a non-licensed person speaks over an amateur radio station, he's the 3rd party. The other two are the licensed amateurs at both ends. So as soon as the question mentions a non-licensed person talking, look for "third party" in the answer.
3rd parties are not limited to US Citizens.
The 3rd party can provide the identification of the station.
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The FCC used to require /M, /R, and /country or state, but no longer requires that. Between the time you upgrade your license and the time the upgrade appears in the FCC database, you're allowed to operate with the increased privileges of the upgrade, but to let others know (so they won't worry when they look you up and see you don't have sufficient privileges to operate where you're operating or with the power you're using), you indicate that you passed the exam and are waiting for the database to show the upgrade by appending the indicator to your call sign.
KT means you've upgraded from Novice to Tech
AG means you've upgraded from Tech to General
AE means you've upgraded from General to Extra
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Repeater stations are one of the most important types of stations to understand if you plan to operate on 2m or 70cm (which most technician licensees will). Repeater stations listen on one frequency (for example 147.94MHz) and retransmit anything they receive on another frequency; generally the two frequencies are separated by a well-known offset. On 2 meters the offset is usually 600kHz and on 70cm it is usually 5MHz.
The only distractor listed that seems like it might be correct is "Message forwarding station". However, a message forwarding station would receive a message and then forward it, not retransmit simultaneously. Beacon stations don't usually receive at all -- they just transmit periodically to help other stations determine wave propagation conditions. Earth stations are simply radio stations that are located within 50km of the Earth's surface.
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Repeaters run on automatic control, and thus do not have a control operator present at a control point. Therefore the repeater's control operator can't be expected to watch all use of the repeater all the time.
As such, the control operator of the originating station is responsible for their own emissions, even if those are retransmitted by a repeater.
Generally speaking, whoever originates something is responsible for its content, not those in charge of whatever the content passes through.
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The FCC does not restrict you from contacting any foreign operator or from you allowing a third party to contact a foreign operator as long as the government of the country in which they reside does not prohibit the communication.
It doesn't matter what region they're in; the FCC doesn't have a problem with you or anyone else with you communicating out of the country -- in point of fact, one of the stated purposes of Amateur Radio is to increase international goodwill! Of course, if you or the third party were to start doing something stupid like transmitting confidential information or threatening people or something you may come under judgement for breaking another law, but it wouldn't be because you allowed a third party to communicate. =] (Please don't be stupid.)
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This is another one of those things that there isn't much you can do but remember it; however, if you figure that 3 is a few and you need more than a few, 4 is the next choice =]
Or just remember there are four letters in club
Three is a few, four is a crew...
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As a federal licensee, you're obligated to make everything that relates to the radio amateur practice (station, records etc) if the FCC or a representative requests so. These visits are very rare and only occur when there are reasons to believe that an improper behaviour has occurred. Remember have your original license available for inspection too!
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