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ATU – Antenna Tuning Unit
Base Station – In radio communications, a base station is a wireless communications station installed at a fixed location
Mobile Station – An amateur radio station installed in a vehicle
HT Radio – A handheld transceiver (HT), more commonly known as a walkie-talkie, is a handheld radio transmitter/receiver device used for two-way communication based on shortwave radio technology.
Matching network: a circuit that matches the impedance of an antenna
End Fed Halfwave Antenna – A half-wavelength antenna with the coaxial cable for your transceiver attached at one end. It has become popular with portable operators because it’s very simple in its construction and deployment.
Quarter Wave Ground Plane Antenna – The 1/4 wave antenna is the simplest form of a vertical antenna. It provides good performance combined with an omnidirectional radiation pattern and simplicity of construction
Dipole Antenna – antenna, consisting of two conductive elements such as rods or wires. The dipole is any one of the varieties of antenna that produce a radiation pattern approximating that of an elementary electric dipole. Dipole antennas are the simplest and most widely used type of antenna.
Discone Antenna – a version of a biconical antenna in which one of the cones is replaced by a disc. It is usually mounted vertically, with the disc at the top and the cone beneath. Omnidirectional , vertically polarized and with gain similar to a dipole , it is exceptionally wideband ,
Balun – A balun (balanced line to unbalanced line) is a device that transforms a balanced transmission line to an unbalanced transmission line. Baluns are hooked up to antenna systems to help electricity run smoothly from the ground to the device.
RG8X -A type of coaxial cable suitable for use in carrying radio transmission signals. They are found mostly in audio control rooms, radio stations or as connections for external radio antennas. Their biggest difference to the common RG6 coaxial cables used for cable TV and cable Internet is that RG8 is unable to carry pure video signals due to its design, and thus is more suitable for radio signals.
RG59 – a specific type of coaxial cable , often used for low-power video and RF signal connections.
RG6 – A common type of 75 ohm coaxial cable is cable television (CATV) distribution coax, used to route cable television signals to and within home
VNA – Vector Network Analyzer – is an instrument that can be used to measure antenna or coax parameters such as SWR, impedance and loss. It can also be used to characterize and tune filters. It is a very useful tool to have if you are building and tuning home made antennas, filters or other RF circuits.
RO-239
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Nam et ipsum semper ipsum maximus volutpat.
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Vestibulum ut purus consequat, convallis risus ultricies, maximus felis.
Donec pulvinar ipsum id ipsum ultrices, eu laoreet nisl convallis.
Praesent id ex maximus, porttitor leo sit amet, faucibus erat.
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Code
Question
Answer
QRA
What is the name (or call sign) of your station?
The name (or call sign) of my station is …
QRB
How far are you from my station?
The distance between our stations is … nautical miles (or km).
QRG
Will you tell me my exact frequency (or that of …)?
Your exact frequency (or that of … ) is … kHz (or MHz).
QRH
Does my frequency vary?
Your frequency varies.
QRI
How is the tone of my transmission?
The tone of your transmission is (1: good, 2: variable 3: bad)
QRK
What is the readability of my signals (or those of …)?
The readability of your signals (or those of …) is … (1: bad .. 5: excellent).
QRL
Are you busy?
I am busy. (or I am busy with … ) Please do not interfere.
QRM
Do you have interference?
I have interference.
QRN
Are you troubled by static noise?
I am troubled by static noise.
QRO
Shall I increase transmit power?
Please increase transmit power.
QRP
Shall I decrease transmit power?
Please decrease transmit power.
QRQ
Shall I send faster?
Please send faster (… words per minute).
QRS
Shall I send more slowly?
Please send more slowly (… words per minute).
QRT
Shall I cease or suspend operation?
I am suspending operation.
QRU
Have you anything for me?
I have nothing for you.
QRV
Are you ready?
I am ready.
QRX
Shall I standby? / When will you call me again?
Please standby. / I will call you again at … (hours) on … kHz (or MHz).
QRZ
Who is calling me?
You are being called by … (on … kHz (or MHz)).
QSA
What is the strength of my signals (or those of … )?
The strength of your signals (or those of …) is … (1: very weak .. 5: very strong).
QSB
Are my signals fading?
Your signals are fading.
QSD
Is my keying defective?
Your keying is defective.
QSK
Can you hear me between your signals (while transmitting), and if so can I break in on your transmission?
I can hear you between my signals (while transmitting); break in on my transmission.
QSL
Can you acknowledge receipt?
I am acknowledging receipt.
QSM
Shall I repeat the last telegram (message) which I sent you, or some previous telegram (message)?
Repeat the last telegram (message) which you sent me (or telegram(s) (message(s)) numbers(s) …).
QSN
Did you hear me (or …) on … kHz (or MHz)?
I did hear you (or …) on … kHz (or MHz).
QSO
Can you communicate with … direct or by relay?
I can communicate with … direct (or by relay through …).
QSP
Will you relay a message to …?
I will relay a message to … .
QSS
What working frequency will you use?
I will use … kHz (or MHz).
QSU
Shall I send or reply on this frequency (or on … kHz (or MHz))?
Please send or reply on this frequency (or on … kHz (or MHz)).
QSV
Shall I send a series of “V” on this frequency (or on … kHz (or MHz))?
Please send a series of “V” on this frequency (or on … kHz (or MHz)).
QSX
Will you listen to … on … kHz (or MHz)?
I am listening to … on … kHz (or MHz).
QSY
Shall I change transmission frequency (to … kHz (or MHz))?
Please change transmission frequency (to … kHz (or MHz)).
QSZ
Shall I send each word or group more than once?
Send each word or group twice (or … times).
QTC
How many telegrams (messages) have you to send?
I have … telegrams (messages) for you (or for …).
QTH
What is your position in latitude and longitude (or according to any other indication)?
My position is … latitude, … longitude.
QTR
What is the correct time?
The correct time is … hours.
QRA
Name
QRB
Distance
QRG
Frequency
QRK
Intelligibility
QRL
Busy
QRM
Interference
QRN
Noise
QRO
High power
QRP
Low power
QRQ
High speed CW
QRS
Low speed CW
QRSS
Very low speed CW
QRT
Shut down the station
QRV
Ready
QRX
Stand by
QRZ?
Who is calling me?
QSB
Fading
QSD
Defective keying
QSK
Break in
QSL
Confirmation or card to confirm contact
QSO
Radio contact
QSY
Change frequency
QTC
Message
QTH
Location
QTR
Time
BNC Connector
BNC Connector Male
SMA Connectors
SMA Connectors
SMA Female to UHF SO-239 Female Connectors
SMA Female to UHF SO-239 Female Connectors