The QN Signals are Morse code operating signals that were introduced for Amateur radio net operation in 1939 on the Michigan QMN Net to lighten the burdens of net control operators. Originally created by a committee of the Detroit Amateur Radio Association led by Ralph Thetreat, W8FX. [1] Ev Battey W1UE (W4IA-SK), then ARRL assistant communications manager, later printed them in QST. [2]
The QN Signals are defined in ARRL document FSD-218 [3] and listed in the ARRL Operating Manual. [4] : 5–3
Although these codes are within the Aeronautical Code signals range (QAA–QNZ) and thus conflict with official international Q signals beginning with QN, the ARRL informally queried FCC's legal branch about the conflict. The opinion then of the FCC was that "no difficulty was forseen[ sic?] as long as we continued to use them only in amateur nets." [4] : 5–3
QN Signal | Meaning/Question |
---|---|
QNA* | This is a request from the Net Control Station for all respondents to answer in a prearranged sequence, as a congestion avoidance measure. |
QNB* | This is a request from the Net Control Station for one station to relay traffic between 2 other stations who cannot read each other. |
QNC | An announcement alerting all stations on the Net to standby for an "All Stations" message, that is, a message of interest to all stations on the Net. |
QND* | An announcement by the Net Control Station, that the Net is currently operating "Directed", that is, the Net Control Station is controlling all traffic. Often done during times of high Net usage. c.f. QNF. |
QNE* | A broadcast announcement to all stations by the Net Control Station, asking all stations on the Net to stop transmitting and stand by. |
QNF | An announcement that the net is no longer "Directed", but is now free. c.f. QND. |
QNG | A request for a named station to assume the role of Net Control Station. |
QNH | A notice to a named station that the frequency that the station is transmitting on is higher than the Net's nominal frequency. c.f. QNL. |
QNI | When used by the Net Control Station, this is a request for all stations to announce themselves. When used by a regular Net member, it simply is an announcement that they have joined. |
QNJ | When used by itself, this asks the Net if the calling station can be heard. When used in conjunction with a station's call sign, it is asking if the Net can read that particular station. |
QNK* | A request from the Net Control Station to send a message from a third party to a specific station. |
QNL | A notice to a named station that the frequency that the station is transmitting on is lower than the Net's nominal frequency. c.f. QNH. |
QNM* | A notice from the Net Control Station to a particular station or stations, informing them that they are causing interference on the Net, and asking them to stop transmitting. |
QNN | As a question, asks whom the Net Control Station is. As a declarative, it announces what station is the active Net Control Station. |
QNO | An announcement by a particular station that they are signing off from the Net. |
QNP | By itself, announces that the sending station was unable to understand the last station. When used with a station's call sign, announces that the sending station was unable to copy that named station. |
QNQ* | A complex request from the Net Control Station asking a specific station to change frequency to a specified one, then to wait for a named station on that frequency to finish whatever traffic it is currently engaged in, and then to send that station traffic on behalf of yet a third named station. c.f. QNV. |
QNR | Requesting that any station please respond to a specific named station and receive traffic from them. |
QNS* | As a question, asks for a listing of all stations currently on the net. As a declarative, announces what stations are on the Net, followed by the list thereof. |
QNT | Request by a station to leave the net for a specified number of minutes. |
QNU* | An announcement by the Net Control Station to a specific station, informing them that there is Net traffic for them, and to stand by to copy it. |
QNV* | A complex request from the Net Control Station asking a specific station to make contact on the current frequency with a named station, and upon successful contact, to move to another specified frequency, and then to send that station traffic on behalf of yet a third named station. c.f. QNQ. |
QNW | A question from a station inquiring on how to route traffic for a specific named station. |
QNX | As a question, a request from a station to leave the net. The Net Control Station will then reply with the same code, informing them that they may leave. |
QNY* | A request by the Net Control Station for a station to change to another specified frequency and exchange all pending traffic with another named station. |
QNZ | A request from one station to a second, asking that station to "Zero Beat" with the first station: a method of ensuring 2 stations are on the same frequency by transmitting simultaneously and fine-tuning the frequency until no acoustic beat is heard. |
Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs. Morse code is named after Samuel Morse, one of the inventors of the telegraph.
In amateur radio, QRP operation refers to transmitting at reduced power while attempting to maximize one's effective range. QRP operation is a specialized pursuit within the hobby that was first popularized in the early 1920s. QRP operators generally limit their transmitted RF output power to 5 Watts or less regardless of mode be it CW operation or SSB operation.
Radioteletype (RTTY) is a telecommunications system consisting originally of two or more electromechanical teleprinters in different locations connected by radio rather than a wired link. Radioteletype evolved from earlier landline teleprinter operations that began in the mid-1800s. The US Navy Department successfully tested printing telegraphy between an airplane and ground radio station in 1922. Later that year, the Radio Corporation of America successfully tested printing telegraphy via their Chatham, Massachusetts, radio station to the R.M.S. Majestic. Commercial RTTY systems were in active service between San Francisco and Honolulu as early as April 1932 and between San Francisco and New York City by 1934. The US military used radioteletype in the 1930s and expanded this usage during World War II. From the 1980s, teleprinters were replaced by personal computers (PCs) running software to emulate teleprinters.
The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially amateur radio. To distinguish the use of a Q-code transmitted as a question from the same Q-code transmitted as a statement, operators either prefixed it with the military network question marker "INT" or suffixed it with the standard Morse question mark UD.
The R-S-T system is used by amateur radio operators, shortwave listeners, and other radio hobbyists to exchange information about the quality of a radio signal being received. The code is a three digit number, with one digit each for conveying an assessment of the signal's readability, strength, and tone. The code was developed in 1934 by Amateur radio operator Arthur W. Braaten, W2BSR, and was similar to that codified in the ITU Radio Regulations, Cairo, 1938.
The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization, and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska of Hartford, Connecticut. The ARRL represents the interests of amateur radio operators before federal regulatory bodies, provides technical advice and assistance to amateur radio enthusiasts, supports a number of educational programs and sponsors emergency communications service throughout the country. The ARRL has approximately 161,000 members. In addition to members in the US, the organization claims over 7,000 members in other countries. The ARRL publishes many books and a monthly membership journal called QST.
In the United States, amateur radio licensing is governed by the Federal Communications Commission (FCC). Licenses to operate amateur stations for personal use are granted to individuals of any age once they demonstrate an understanding of both pertinent FCC regulations and knowledge of radio station operation and safety considerations. Applicants as young as five years old have passed examinations and were granted licenses.
W1AW is both the amateur radio call sign and the primary operating station of the American Radio Relay League (ARRL). This station, which is commonly called the Hiram Percy Maxim Memorial Station, is located on the grounds of ARRL Headquarters in Newington, Connecticut. It was inspired by Maxim's 1AW callsign which predated the use of the AA-AL, K, N and W prefixes. The station routinely transmits bulletins and Morse code practice using common amateur radio frequencies. During a communications emergency bulletins are transmitted hourly in order to keep amateur radio operators informed.
The National Traffic System (NTS) is an organized network of amateur radio operators sponsored by the American Radio Relay League for the purpose of relaying messages throughout the U.S. and Canada.
Radio code is any code that is commonly used over a telecommunication system such as Morse code, brevity codes and procedure words.
An amateur radio operator is someone who uses equipment at an amateur radio station to engage in two-way personal communications with other amateur operators on radio frequencies assigned to the amateur radio service. Amateur radio operators have been granted an amateur radio license by a governmental regulatory authority after passing an examination on applicable regulations, electronics, radio theory, and radio operation. As a component of their license, amateur radio operators are assigned a call sign that they use to identify themselves during communication. About three million amateur radio operators are currently active worldwide.
Procedure signs or prosigns are shorthand signals used in Morse code radio telegraphy procedure, for the purpose of simplifying and standardizing radio communication protocol. They are several from Morse code abbreviations, which consist mainly of brevity codes that convey messages to other parties with greater speed and accuracy.
The history of amateur radio, dates from the dawn of radio communications, with published instructions for building simple wireless sets appearing at the beginning of the twentieth century. Throughout its history, amateur radio enthusiasts have made significant contributions to science, engineering, industry, and social services. Research by amateur radio operators has founded new industries, built economies, empowered nations, and saved lives in times of emergency.
An amateur radio net, or simply ham net, is an "on-the-air" gathering of amateur radio operators. Most nets convene on a regular schedule and specific frequency, and are organized for a particular purpose, such as relaying messages, discussing a common topic of interest, in severe weather, emergencies, or simply as a regular gathering of friends for conversation.
Amateur radio, also known as ham radio, is the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. The term "amateur" is used to specify "a duly authorised person interested in radioelectric practice with a purely personal aim and without pecuniary interest;" and to differentiate it from commercial broadcasting, public safety, or professional two-way radio services.
APRS Calling is a manual procedure for calling stations on the Automatic Packet Reporting System (APRS) to initiate communications on another frequency, or possibly by other means. It is inspired by Digital Selective Calling, a part of the Global Maritime Distress Safety System. It also builds on existing digital procedures inherited from morse code and radioteletype operation. ITU Q codes are used in conjunction with APRS text messages to implement APRS calling. APRS calling is intended to complement monitoring voice calling frequencies.
Fldigi is a free and open-source program which allows an ordinary computer's sound card to be used as a simple two-way data modem. The software is mostly used by amateur radio operators who connect the microphone and headphone connections of an amateur radio SSB or FM transceiver to the computer's headphone and microphone connections, respectively.
The QSA code and QRK code are interrelated and complementary signal reporting codes for use in wireless telegraphy. An enhanced format, SINPO code, was published in the ITU Radio Regulations, Geneva, 1959, but is longer and unwieldy for use in the fast pace of Morse code communications.
Operating signals are a type of brevity code used in operational communication among radio and telegraph operators. For example: