Q Codes
QRZ
Who is calling me?
That's the callsign for K7UAZ's community liason.
The direction an electromagnetic wave travels.
What travels at a right angle to electric and magnetic fields?
A difference between feed line impedance and antenna feed point impedance causes this at an antenna's feed point.
What is reflected power?
This dB change represents an increase or decrease by a factor of 2.
QRN
Are you bothered by noise of natural origin?
The first callsign for the Amatuer Radio Club at the University of Arizona?
What is 6YB?
When a meteor strikes earth this region of the ionosphere is formed into a linear ionized region.
What is the E-Region
Larger diameter elements increase this characteristic of a Yagi antenna?
What is bandwidth?
What is Continuous Wave (CW)?
QRH
What is your wavelength in meters?
The reason the club operated a special event station in 1989.
What is the 1989 San Francisco Earthquake?
This is the primary cause of loss in film capacitors at RF.
What is skin effect?
These are used with antennas in order to participate in multi-band operation.
What are antenna traps?
A transmission from a satellite that contains status information.
What is a satellite beacon?
QRL
This is where the shack is. (Room # and Building)
What is in room 303 of Old Engineering.
This value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value.
What is the Root Mean Square (RMS) value?
An antenna that concentrates signals in one direction.
What is a beam antenna?
This is the name of the process that changes the instantaneous frequency of an RF wave to convey information?
What is Frequency Modulation (FM)?
The original meaning of QRA, as per the 1912 International Radiotelegraph Convention Regulations.
What ship or coast station is that?
That's the UA building whose roof housed the club's original multi-band repeater?
What is Gould-Simpson?
This causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding.
What is mutual inductance?
The electrical lengthening of an antenna by inserting inductors in radiating elements.
What is antenna loading?
This digital mode is used as a low-power beacon for assessing HF propagation.
What is Weak Signal Propagation Reporter (WSPR)?