If an FM (Frequency Modulation) transmitter's deviation is increased, its signal occupies more bandwidth.
Frequency modulation is a method of modulating a carrier signal by varying its frequency in response to the modulating audio signal. In FM transmission, the audio signal causes the instantaneous frequency of the carrier to deviate above and below its center frequency. The extent of this frequency deviation is known as the frequency deviation.
Frequency modulation is a method of modulating a carrier signal by varying its frequency according to the modulating audio signal. In an FM transmitter, the audio signal causes the carrier frequency to shift above and below its nominal center frequency. The extent to which the carrier frequency deviates from its center frequency is known as the frequency deviation.
A typical offset for repeaters in the 70 cm band is plus or minus 5 MHz.
The 70 cm band is a portion of the UHF (Ultra High Frequency) spectrum allocated to amateur radio operators. It covers the frequency range from 420 MHz to 450 MHz. Within this band, repeaters are commonly used to extend the communication range of handheld and mobile transceivers.
The procedural signal "CQ" is used in amateur radio to indicate a general call or an invitation to communicate with any station that may be listening. When an operator transmits "CQ," they are inviting other stations to respond to their call.
"CQ" is commonly used by amateur radio operators at the beginning of a transmission to seek contacts with other stations. It is derived from the maritime signal "CQD," which was used as a general distress call. In amateur radio, "CQ" has a different meaning and is simply a way to attract the attention of other operators for the purpose of making contacts and engaging in communication.
Passing messages exactly as received describes effective emergency traffic management.
In emergency communications, passing messages accurately and precisely is of utmost importance. When handling emergency traffic, amateur radio operators and other communication personnel are responsible for ensuring that critical information is relayed without any errors or omissions. Passing messages exactly as received means that the information is transmitted faithfully, preserving its original content and intent.
APRS (Automatic Packet Reporting System) network digipeaters are subject to automatic commands.
APRS is a real-time digital communication system used by amateur radio operators to transmit and receive data packets over radio frequencies. Digipeaters, short for "digital repeaters," play a vital role in the APRS network by retransmitting APRS packets to extend their range and coverage.
The licensee of an amateur radio station is required to make the facility and its documents available for inspection by the FCC (Federal Communications Commission) at any time upon request by an FCC representative. Amateur radio operators, as licensees, are bound by the rules and regulations outlined in Part 97 of the FCC regulations. One of the conditions of holding an amateur radio license is the agreement to allow FCC representatives to inspect the station and associated documents when deemed necessary for regulatory compliance purposes.
When the control operator is not the station licensee, both the control operator and the station licensee are equally responsible for ensuring that the station is run properly in compliance with the FCC regulations.
RACES (Radio Amateur Civil Emergency Service) and ARES (Amateur Radio Emergency Service) are similar in that they are both organizations of amateur radio operators who provide communication support during emergencies and public service events. However, they are not similar to organizations that broadcast road and weather traffic information.
RACES and ARES are volunteer groups that assist in emergency communications when regular communication systems are disrupted or overwhelmed. Their primary focus is to provide backup communication capabilities to public safety agencies, emergency management offices, and other served agencies during times of disasters, emergencies, and community events.
The phrase "Simplex communication" does not represent an FCC regulation governing the power levels used in amateur bands when conditions are normal and undistressed. The phrase "Simplex communication" does not represent an FCC regulation governing the power levels used in amateur bands when conditions are normal and undistressed.
For a station transmitting phone signals (voice communications), the required method of call sign identification is to send the station's call sign using voice (phone emission) during the course of communication.
According to FCC regulations in Part 97.119, an amateur radio station must transmit its assigned call sign at the end of each communication. For phone transmissions, this means verbally stating the call sign using voice modulation. The call sign should be transmitted in a clear and easily understandable manner to ensure that other stations can properly identify the transmitting station.
The statement "Use the least amount of power required to carry out the desired communication while not exceeding the maximum power permitted on a given band" is not a specific FCC regulation. However, it reflects the general principle of operating amateur radio stations in the United States in accordance with good operating practices and being mindful of efficient use of radio spectrum.
The FCC (Federal Communications Commission) regulates amateur radio operations in the United States through Part 97 of its rules. Part 97 sets forth the Amateur Radio Service rules and regulations, including the permissible power levels for different amateur radio bands.
An amateur station that broadcasts another amateur station's signal simultaneously on a separate channel or channels is known as a "repeater station."
A repeater station is a type of amateur radio station that receives signals on one frequency and retransmits them on another frequency, allowing communications between distant stations that may not be able to communicate directly. The purpose of a repeater is to extend the communication range of mobile and handheld stations, effectively creating an area of improved radio coverage.
In the context of an amateur radio station, a control point is the location at which the control operator function is performed.
The control operator is the licensed individual responsible for the operation and overall management of the amateur radio station. This person ensures that all transmissions comply with the relevant regulations and operating procedures as specified by the licensing authority, such as the Federal Communications Commission (FCC) in the United States.
When employing tactical identifiers like "Race Headquarters" during a community service net operation, your station must transmit the station's FCC-assigned call sign at the end of every transmission.
According to FCC regulations in Part 97.119, all amateur radio stations are required to identify their transmissions with their assigned call signs. Tactical identifiers, such as "Race Headquarters," are used in community service events or emergency situations to provide relevant information about the station's role or function during the operation.
