s---- ( second (time). )

S---- ( Siemens (unit of conductance); switch. )

Safety Interlock---- ( A switch that automatically turns off ac power to a piece of equipment when the top cover is removed. )

Sand bagging ---- ( A term used describe the activity of a person not participating in conversation but listening only, despite having the capability of speaking. This is not the same as listening in using a simple receiver, as the person doing this activity can transmit using the two-way radio, but chooses not to. It is done to monitor people for entertainment or for gathering information about the actions of others. Often CBer’s will sandbag to listen to others' responses to their previous input to a conversation, sometimes referred to a "reading the mail". )

SAR---- ( Search And Rescue. )

SAR---- ( Specific Absorption Rate . )

SAREX---- ( An abbreviation for "Shuttle Amateur Radio Experiment". )

SASE--- ( Self-addressed stamped envelope. )

Satellipse---- ( A graphical tracking device, similar toOscarlocator, designed to be used with satellites in elliptical orbits. )

Satellite pass---- ( Segment of orbit during which the satellite "passes" nearby and in range of a particular ground station. )

Saturation Region---- ( The region in the characteristic curve of an analog device in which the output signal can be made no larger See "Clamping". )

Scan---- ( Continually sweeping frequencies looking for signals. )

SCF---- ( Switched capacitor filter. )

Schematic Symbol---- ( A drawing used to represent a circuit component on a wiring diagram. )

Scope---- ( Slang for oscilloscope. )

SCR---- ( Silicon controlled rectifier. )

Scratch Pad Memory---- ( Temporary frequency memories for Quick reference. )

Scud---- ( A very low power transmitter used to continuously transmit therefore jam another's "ears". Scuds are usually thrown into the bushes near your home by persons who want to annoy you. Not a polite activity. Sometimes done maliciously or as a joke. )

SEC---- ( Section Emergency Coordinator. )

Secondary---- ( The slave in a master-slave relationship. Compare primary. )

Second Breakdown---- ( A runaway failure condition in a transistor, occurring at higher collector-emitter voltages, where hot spots occur due to (and promoting) localization of the collector current at that region of the chip. )

Selectivity---- ( Ability of a receiver to reject signals adjacent to tuned signal; or the ability of a receiver to separate two closely spaced signals. )

Semiconductor---- ( An elemental material whose current conductance can be controlled. )

Sensitivity---- ( Indicates how weak a signal the Receiver will pick up. )

Series Circuit---- ( An electrical circuit in which all the electrons must flow through every part of thecircuit. There is only one path for the electrons to follow. )

Series Pass Transistor, or Pass Transistor---- ( The transistor(s) that controls the passage of power between the unregulated dc source and the load in a regulator. In a linear regulator, the series pass transistor acts as a controlled resistor to drop the voltage to that needed by the load. In a switch-mode regulator, the series pass transistor switches between its on and off states. )

Sesame Street--- ( CB radio; also, CB channel 19;Named so because of child-like behavior that. )

SET---- ( Simulated Emergency Test. )

SGL---- ( State Government Liaison. )

Shack---- ( The room where an Amateur Radio operator keeps his or hers station equipment. )

SHF---- ( Super-high frequency (3-30 GHz). )

Shooting Skip---- ( Talking farther than 150 miles. )

Short Circuit---- ( An electrical circuit in which the current does not take the desired path, but finds a shortcut instead. Often the current goes directly from the negative power-supply terminal to the positive one, bypassing the rest of the circuit. )

Shortwave Listener (SWL)---- ( A person who enjoys listening to radio broadcasts or Amateur Radio conversations. )

Shunt---- ( Elements connected in parallel. )

Shuttle Amateur Radio Experiment---- ( A payload of Amateur Radio equipment flown aboard the space shuttle and operated by astronauts who are licensed Amateur Radio operators. )

Sidebands---- ( The sum or difference frequencies generated when an RF carrier is mixed with an audio signal. Single-sideband phone (SSB) signals have an upper sideband (USB--that part of the signal above the carrier) and a lower sideband (LSB-- the part of the signal below the carrier). SSB transceivers allow operation on either USB or LSB. )

Sidereal day---- ( The amount of time required for the Earth to rotate exactly 360* about its axis with respect to the "fixed" stars. The sidereal day contains 1436.07 minutes (see "Solar day"). )

Signal-To-Noise Ratio (SNR)---- ( The ratio of the strength of the desired signal to that of the unwanted signal (noise). )

Simi Duplex---- ( AN operation mode in which transmits and receives is acomplished on different frequencies alternatively. )

Simplex---- ( An operation mode where the Transmit and Receive frequency is the same. )

Single-pole,double-throw (SPDT) switch---- ( A switch that connects one center contact to one of two other contacts. )

Single-pole, single-throw (SPST) switch---- ( A switch that only connects one center contact to another contact. )

Single sideband (SSB)---- ( A common mode of voice operation on the amateur bands. SSB is a form of "amplitude modulation". The amplitude of the transmitted signal varies with the voice signal variations. )

Single sideband---- ( Cb radio with upper and lower sideband capability( i.e., 69 channels on 23 channel radio; 120 channels on 40 channel). )

Sinusoidal (sine wave)---- ( The nominal waveform for unmodulated RF energy and many other ac voltages. )

Skip---- ( Atmospheric conditions that allow CB to reach greater distances.
Typically signals are line-of-sight, but when the ionosphere is "charged" by the sun,
signals that would normally pass through it are now reflected back to Earth, or "Skip" a large distance. )

Skip land---- ( Listening to a radio and hearing far-way places(distant stations). )

Skip shooter---- ( Person deliberately trying to talk skip. )

Skip Zone---- ( An area of poor radio communication, too distant for ground waves and too close for sky waves. )

Sky-wave Propagation---- ( he method by which radio waves travel through the ionosphere and back to Earth. Sometimes called "skip", sky-wave propagation has a far greater range than "line of sight" and "ground-wave" propagation. )

Skyhook---- ( Originally an amateur radio term for antenna, still used by hams who also operate CB rigs. The more common CB terms are "ears" or "flappers". )

Slew Rate---- ( The maximum rate at which a signal may change levels and still be accurately amplified in a particular device. )

Slider---- ( Illegal variable frequency oscillator. )

Slider ---- ( A variable frequency oscillator (VFO) for operating a radio between the crystal controlled channels. Once a radio is unlocked it can talk between the usual channels with another unlocked radio.. )

Slow-scan television (SSTV)---- ( A "mode" of operation in which Amateur Radio operators exchange still pictures form their radio stations. )

SM---- ( Section Manager; silver mica (capacitor). )

SMA---- ( Sub Miniature a connector). )

S-meter---- ( Device measuring strength of incoming signal; Usually calibrated in "S" units (1 "S" unit = 1DB). S units are also referred to as "Pounds". )

S/N---- ( Signal to Noise Ratio. )

SNAFU---- ( Foul up. )

SOAR (Safe Operating ARea)---- ( The range of permissible collector current and collector-emitter voltage combinations where a transistor may be safely operated without danger of device failure. )

SOFTNET---- ( An experimental packet-radio network at the University of Linkoping, Sweden. )

Solar day---- ( The solar day, by definition, contains exactly 24 hours (1440 minutes).During the solar day the Earth rotates slightly more than 360* about its axis with respect to "fixed" stars (see "Sidereal day"). )

Solid-state---- ( Electronic device that doesn’t use tubes. )

SOS---- ( A Morse code call for emergency assistance. )

Source---- ( The connection at one end of the channel of a field-effect transistor, often the reference. )

Source---- ( In packet radio, the station transmitting the frame over a direct radio link or via a repeater. )

SOUTHNET---- ( A series of digipeaters along the U.S. Southeast Coast. )

SP---- ( Speaker. )

Space Station---- ( An amateur station located more than 50 km above the Earth's surface. )

Specific Absorption Rate (SAR)---- ( A term that describes the rate at which RF energy is absorbed into the human body. Maximum permissible exposure (MPE) limits are based on whole-body SAR values. )

Spectrum---- ( Used to describe a range of frequencies or wavelengths. The RF spectrum starts at perhaps 10 kHz and extends up to several hundred gigahertz. The light spectrum goes from infared to ultraviolet. )

SPDT---- ( Single pole double-throw (switch). )

Speech Processor---- ( A device used to increase the average power contained in a speech waveform. )

Spike---- ( An extremely short perturbation on a power line, usually lasting less than a few microseconds. )

Spin modulation---- ( Periodic amplitude fade-and-peak resulting from rotation of a satellite's antennas about its spin axis, rotating the antenna peaks and nulls. )

Splatter---- ( Interference to adjacent signals caused by overmodulation of a transmitter. or A type of interference to stations on nearby frequencies. Splatter occurs when a transmitter is overmodulated )

Split---- ( A mode in which the Transmit and Receive frequency is the same. )

SPST---- ( Single-pole single-throw (switch). )

Spurious emissions, or spurs---- ( Unwanted energy generated by a transmitter or other circuit. These emissions include, but are not limited to,"harmonics". )

Spurious Emission---- ( An emission, on frequencies outside the necessary bandwidth of a transmission, the level of which may be reduced without affecting the information being transmitted. )

SQL---- ( Squelch. )

Squelch---- ( Control on radio which silences the speaker until a signal of a certain strength breaks through it. )

SS---- ( Sweepstakes. )

SS---- ( Spread-spectrum emissions using band-width-expansion modulation emissions having designators with A, C, D, F, G, H, J and R as the first symbol; X as the secoond symbol; X as the third symbol. Only an SS emission of a type specifically authorized by Part 97 may be transmitted. )

SSB---- ( A form of amplitude modulation (AM) in which the carrier and one sideband are removed. )

SSB---- ( Single Side Band- A great deal of power is wasted in AM, radio engineers devised a method to transmit just one sideband and put all of the transmitter's power into sending useful intelligence. This method is known as single sideband (SSB). . )

SSC---- ( Special service channels. Frequencies in the downlink passband of AO-10 that are set aside for authorized, scheduled use in such areas as education, data exchange, scientific experimentation, bulletins and official traffic. )

SSC---- ( Special Service Club. )

SSI---- ( Small-scale integration. )

SSID---- ( Secondary station identifier. In AX.25 link-layer protocol, a multi-purpose octet to identify several packet-radio stations operating under the same call sign. )

SSP---- ( Subsatellite point. Point on the surface of the Earth directly between the satellite and the geocenter. )

SSTV---- ( Slow-scan television. )

Standing-wave Ratio (SWR)---- ( Sometimes called voltage standing-wave ratio (VSWR). A measure of the impedance match between the feed line and the antenna. Also, with a Transmatch in use, a measure of the match between the feed line from the transmitter and the antenna system. The system includes the Transmatch and the line to the antenna. VSWR is the ratio of maximum voltage to minimum voltage along the feed line. Also the ratio of antenna impedance to feed-line impedance when the antenna is a purely resistive load. )

Station Grounding---- ( Connecting all station equipment to a good earth ground improves both safety and station performance. )

Stinger---- ( Center or top-loaded antenna. )

STM---- ( Section Traffic Manager. )

Sunspot Cycle---- ( The number of "sunspots" increases and decreases in a predictable cycle that last about 11 years. )

Sunspots---- ( Dark spots on the surface of the sun. When there are few sunspots, long-distance radio propagation is poor on the higher-frequency bands. When there are many sunspots, long-distance HF propagation improves. )

Superposition---- ( The natural process of adding two or more signals together and having each signal retain its unique identity. )

Susceptance (B)---- ( The reciprocal of reactance, measured in siemens (S). )

Susceptibility---- ( The characteristic of electronic equipment that permits undesired responses when subjected to electromagnetic energy. )

Surge---- ( A moderate-duration perturbation on a power line, usually lasting for hundreds of milliseconds to several seconds. )

Swar---- ( SWR Meter. )

Switch---- ( A device used to connect or disconnect electrical contacts. )

SWL---- ( Shortwave listener. )

SWR---- ( Standing Wave Ratio, a measure of how much radio energy sent into an antenna system is being reflected back to the transmitter. )

SWR meter---- ( a device used to determine the Standing Wave Ratio of an antenna system. or A measuring instrument that can indicate when an antenna system is working well. A device used to measure SWR. )

SX---- ( SImplex. )

sync---- ( Synchronous, synchronizing. )

Synchronous detection---- ( An ingenious method of processing an AM signal to improve audio quality and reduce interference from adjacent stations. )

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Lycos Small Business

The Copyright Minefield By Jacqui Kramer, Contributing Author
10/5/2000 9:19:53 AM PDT

"The copyright issue is a sticky one for Web site owners and their employees, particularly contractors.
Currently in the United States, there are no laws that specifically address copyright issues in the online world.
However, the U.S. courts have ruled that existing copyright laws governing the print world can be applied to the online world."

If by mistake, I've used someone's copyright material, notify me, and I'll remove it.

All Trademarks are Recognised as belonging to Their Respective Owners