Bnc Uhf

BNC Male Jack to UHF PL259 Male Clamp Coaxial Cable Connector $4.24

BNC Male to UHF Female Antenna Adaptor Connector $0.99

BNC type portable antenna for UHF or 800 MHz Trunking NEW SHIPPING COST $4.99

Solder Type UHF PL259 to BNC M/M RF Coaxial Cable Connector $3.74

Lot of 4 UHF 430-470 MHz BNC Rubber duck, portable HT antennas $19.95

ANTENNA BNC For KENWOOD VERTEX YAESU ICOM DUAL BAND 144/430MHz VHF UHF RADIOS $14.99

VHF UHF Dual Band BNC Antenna KENWOOD TK208 TK308 ICOM IC-V8 IC-F4 IC-F3S $8.99

5-021-410 BNC UHF 410Mhz Antenna for IC-U82 IC-W32A $11.00

5-021-430 BNC UHF 420-440Mhz TELESCOPIC Antenna $11.00

BNC Male to Solder Type UHF PL259 Male RF Crimp Connector New $4.21

UHF Male Jack to BNC Female Plug Connector for Antenna $5.17

Solder Type UHF PL259 to BNC M/M RF Coaxial Cable Connector $4.21

Centurion Tuf Duck Replacement Antenna Styl C-UHF BN-BNC 450-470 New $9.99

Centurion Tuf Duck Replacement Antenna Styl G-UHF 1/2 Wave BN-BNC 420-450 New $9.99

BNC male to UHF female SO239 Antenna Adapter $3.99

BNC Male to Solder Type UHF PL259 Male RF Crimp Connector New $3.71

Solder Type UHF PL259 to BNC M/M RF Coaxial Cable Connector $3.73

BNC UHF Rubber ANTENNA Connector Portable 433MHz $5.49

AIM 25-7365 BNC (F) To UHF (F) Adapter $15.00

UHF Male Jack to BNC Female Plug Connector for Antenna $6.58

3 Meters Screw Mounted Bracket UHF to BNC SL16 Radio Cable $18.11

Black UHF to BNC Connector Cable for Cordless Telephone $16.81

UHF Female to BNC Male Adapter $3.52

BNC-M UHF Antenna for Kenwood TK Vertex Icom IC-U82 New $4.99

New Bird 43 THRULINE Wattmeter N or UHF or BNC $334.95

UG273/U UHF Male to BNC Female coax adapter connector military repair part army $8.99

Adapter Kit, Gold plated connections, UHF, SMA, BNC, TNC, N-type, T conn, 31 pc $25.00

Solder Type UHF PL259 to BNC M/M RF Coaxial Cable Connector $4.20

Lot=4Ratchet BNC RG59 coax,N,RCA,TNC,UHF,SMA Crimper/Crimping Tool w/Pin Crimp{Y $79.99

BNC Female to UHF Male Plug Coaxial Cable Connector $5.10

Mounting Bracket UHF BNC Adapter SL16 Cable for Radio $16.73

PL259 UHF to BNC Female Adaptor f/FT-1802M FT-1807 S005 $2.59

BNC Male Jack to UHF PL259 Male Clamp Coaxial Cable Connector $2.83

S088 Mini UHF to BNC for Motorola mobile GM-300 GM300 $4.20

BNC Male to Solder Type UHF PL259 Male RF Crimp Connector New $4.19

MULTI BAND HF-VHF-UHF-800 MHz SCANNER MICRO MAG ANTENNA TMM3 W/ BNC CONN $19.95

RFAdapter connector BNC male x UHF (female) or SO-239 $3.50

Glossary of Terms (S – Z) – CCTV

S / N
Signal to noise ratio is calculated using the log-normal signal and the RMS noise value.

SCENE LIGHTING
The average level of light incident on a protected area. Normally measured for the visible spectrum with a light meter having a spectral response corresponding close to the human eye and is quoted in lux. Scotopic vision levels are below levels of illumination of 2.10 lux, thus invisible to the naked eye. Silicon. The raw material of modern semiconductor devices are made.

SIMPLEX
In general, refers to a communications system that can transmit information one direction. In CCTV, simplex method used to describe a multiplexer operation where only one function can be performed simultaneously, for example. recording or playback individually.

Skin effect
The tendency of alternating current to travel only on the surface of a conductor with increasing frequency.

Slow Scan
The transfer of a series of still images via analog or digital signals over wide limited bandwidth media, usually by phone.

Smear
An unwanted side effect of vertical charge transfer in a CCD chip. It shows bright vertical stripes of the image in places where there are very bright areas. In better cameras smear is reduced to almost undetectable levels.

SMPTE
Society of Motion Picture and Television Engineers. Spectrum analyzer. An electronic device that can
show the spectrum of an electrical signal.

SPECTRUM
In electromagnetism, the spectrum refers to the description of the amplitude of a signal compared to its frequency components. In optics, spectrum refers to the frequencies of light that make up the "white" light that can be seen as the colors of the rainbow.

SPG
Supports sync pulse generator. One source of synchronization pulses.

SPLIT SCREEN UNIT
(Quad Compressor). Equipment that simultaneously displays parts or more than one image in a single monitor. Usually refers to four quadrants display.

S-VHS
Super VHS video recording format. A new standard proposed by JVC, preserving downward compatibility with the VHS format. It offers much better horizontal resolution of 400 TV lines. This is mainly due to the color separation techniques, High quality video heads and better films. Sync. This is short sync pulse.

TBC
Time Base correction. Refers the timing of different signals within a device such as a multiplexer or a spell of TB.

TDG
Short for time and date generator.

TELEMETRY
The remote control system, usually encoded digital data, intended to control pan, tilt, zoom, focus, preset, washing, cleaning and the like. Being digital, it is usually sent via twisted pair cable, coaxial cable or with the video signal.

FIN
This usually refers to the physical act of ending a cable with a special connector, which for the coaxial cable is usually BNC. This fiber optic cable is the ST connector. You can also refer to the electrical impedance when the transmission is in use. This is especially important for high frequency signals, as the video signal, which accepted the characteristic impedance is 75 ohms.

TIME LAPSE VCR
Recorder (VCR TL). A video recorder, usually VHS format, which can prolong the video recording on a single tape up to 960 hours (this refers to a tape of 180 minutes). This type of VCRs are used frequently in CCTV systems. The operating principle is very simple – instead of having the advance of a video tape at a constant speed of 2.275 cm / s (which is the case of national models of VHS VCRs), it moves with discrete steps that can be controlled. Time Lapse VCRs have a number of other special functions very useful in CCTV, such as external alarm trigger, time and date superimposed on the video signal, alarm search, and so on.

Time Lapse Video Recording
The intermittent recording of video signals at intervals to extend the recording time support recording. It is usually measured in reference to one of three hours (180 minutes) of the tape.

Multiplexing TIME
The technique of recording several cameras, usually a time lapse VCR by sending camera images sequentially with a delay interval timed to coincide with the way time-lapse recorder selected.

UHF SIGNAL
Ultra high frequency signal. On TV is defined to belong in the radio spectrum between 470 MHz and 850. Unbalanced signal. In CCTV, this refers to a type of transmission of the video signal through a coaxial cable. It called unbalanced because the signal travels through the core single center, while the cable shield is used to equalize the two voltage potentials between coaxial cable ends.

UPS
Uninterruptible power supply. These power supplies are used in most high systems security, whose goal is to make backup copies of the system for at least 10 minutes without power. The duration of this depends on the size of the UPS, usually expressed in the AV and power consumption of the system.

VDA
Video Distribution Amplifier. A device that provides multiple results of a signal video so that the output interference does not affect others.

Vertical shift register
The mechanism by which the CCD technology load is read from the sensors transfer or photo of a Frame Interline Interline Transfer sensor.

VHF
Stands for very high frequency. A frequency signal covering between 30 and 300 MHz television, VHF Band I uses frequencies between 45 MHz and 67 and between 180 and 215 MHz for Band III. Band II is reserved for FM radio 88 MHz to 108 MHz

VHS
Stands for Video Home System, as proposed by JVC, one video recording format used most often in households, but also in closed-circuit television. It has its own limitations because of the concept itself, the recording speed, magnetic tapes used and technique of color separation. Most CCTV equipment today supersedes the VHS resolution.

CORRECTOR VIDEO EQ
(EQ video). A device that corrects for unequal frequency losses and / or phase errors in the transmission of a video signal. Video Store framework. A device that allows digital storage of one or more images of constant display in a video monitor.

ONLINE VIDEO AMPLIFIER
A device that provides amplification a video signal.

VIDEO Matrix Switcher
(SLB). A device for switching more than one camera, VCR, video printer and the like, more than one monitor, VCR, video printer and similar. Much more complex and more powerful than video switchers.

VIDEO MONITOR
A device for converting a video signal into an image.

VIDEO MONITOR
A device for converting a video signal into an image.

VIDEO PRINTER
A device for converting a video signal to a paper copy. It could be a black and white (B / W) or color. They come in formats different. Special paper is needed.

VIDEO SIGNAL
An electrical signal containing all the elements of the image produced by a camera or another source of video information.

VIDEO SWITCHER
A device for changing more than one camera to one or more monitors manually, automatically or upon receipt of an alarm condition.

VITS
Inserting video signals test. Special-shaped electronic signals inserted in the "invisible" lines (in the case of PAL, lines 17, 18, 330 and 331) that are used to determine the quality of reception.

VLF
Very low frequency. It refers to frequencies in the range of 10 to 30 kHz.

About the Author

Instrom Limited is an independent security consultancy set-up in 1998 to provide a range of impartial security consultancy services to commerce, industry and the public sector. Business Security Consultants