Analog Digital
Todays deals on Analog Digital?
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Audio precision P1DD Portable Audio analyzer Digital /Analog $8,500.00 |
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Audio Precision ATS-2 Audio Test System USB Analog/Digital input $7,500.00 |
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HP E4430B /1E5/UK6 250KHz-1000MHz ESG-D Digital/Analog Signal Generator $6,490.00 |
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Wavetek 4032 Stabilock Universal Analog/Digital Communication Test Set $6,495.00 |
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Agilent / HP DSO6034A 300 MHz, 4 channels, 2 GSa/s Digital & Analog Oscilloscope $5,990.00 |
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SELEX ANALOG TO DIGITAL CONVERTER P/N: H-140-2550-01 NSN: 7050-99-449-4158 $3,700.00 |
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Allen Bradley PLC Training, Analog, Encoder, Digital 1400 Trainer, 1766-L32BWAA $3,499.99 |
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WAVETEK 4032 STABILOCK UNIVERSAL ANALOG / DIGITAL COMMUNCATION TEST SET $2,800.00 |
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Anritsu MT8801C DIGITAL ANALOG RADIO COMMUNICATION TEST, opt 01, 07, 10 $2,500.00 |
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Leader LV5836B Digital/Analog Surround Audio Monitor $1,950.00 |
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AEMC 1060 Megohmmeter (Digital, Analog Bargraph, Alarm, Timer, 50V, 100V, 250V) $1,899.00 |
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Tektronix 2236 100 MHz analog oscilloscope with integrated digital multimeter $1,195.00 |
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BK Precision 2522C Analog/Digital Storage Oscilloscope $1,079.10 |
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National Instruments AT-MIO-64F-5 Analog/Digital PC $997.50 |
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Agilent/HP 8175A Signal Generator Digital/Analog $999.95 |
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HP 5466A Analog to Digital Converter module + Option 07 $995.00 |
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Megger MIT485-EN Analog/Digital Insulation Tester – Nat’l Authorized Distributor $930.00 |
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Honeywell 30752387 Analog Digital Assembly Board NEW $899.99 |
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NEW ANELVA ANALOG TO DIGITAL CONVERTOR H11-09728 $899.99 |
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200x CS1180S SOP-16 24bit ADC analog-digital conversion $914.99 |
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Grant Squirrel SQ2020-2F8 Data Logger High Speed Analog & Digital Acquisition $899.00 |
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Greenlee 5882-C Digital/Analog Multimeter – Calibrated $876.35 |
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AEMC 2116.91, 1039 Megohmmeter (Digital w/Analog Bargraph, Alarm, Timer) $794.00 |
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Siemens SIMATIC 6ES5 095-8MA04 S5-95U Analog & Digital $799.99 |
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B&R System 2003 PLC, w/analog inputs, 2X digital I/O modules & operator panel $750.00 |
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Mitsubishi A62DA Digital-Analog Converter Module Howa 074-79-20663 NEW FS!! $753.30 |
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THAYER ANALOG AND DIGITAL I/O ADIO-BUS/51932 *NICE* $750.00 |
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AEMC 2116.90, 1035 Megohmmeter (Digital w/Analog Bargraph, Alarm, Backlight) $694.00 |
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Wago 750-880 10/100 Mbit/s DIGITAL AND ANALOG SIGNALS $669.00 |
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Greenlee 5882 Digital/Analog Multimeter $661.32 |
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Comau 8IN-8OUT-2AO Analog Digital Module 10121760 02 $625.00 |
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KEITHLEY DAS-1702ST 9713/A 442251 ANALOG & DIGITAL I/O BOARD DAS1702ST REPAIRED $625.00 |
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AEMC 1045 Megohmmeter Digital w/Analog Bargraph, Backlight $615.48 |
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MC PCI-DDA08/12 8-Channel, 12-Bit Analog Output Board w/ 48 Digital I/O $589.99 |
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AEMC 2116.92, Megohmmeter Model 1040 (Digital w/Analog Bargraph, Alarm) $574.00 |
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Eaton-Kenway Doo60672 Digital to Analog Converter Board $575.00 |
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Wago 750-849 KNX IP programmable fieldbus controller digital analog signals $571.60 |
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Megger MIT320-EN Analog/Digital Insulation Tester – Authorized Distributor $570.00 |
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Digital/Analog Design Lab $549.95 |
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Wago 750-882 10/100 Mbit/s DIGITAL AND ANALOG SIGNALS $550.00 |
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IC 334 DAC IC DIGITAL ANALOG CONVERTER $500.00 |
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QAM TV Signal Level Meter RY-1127DQ DTV Digital/Analog CATV Testing 5-870MHZ $499.00 |
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EG&G ORTEC 800 ANALOG TO DIGITAL CONVERTER $499.00 |
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Analog Devices ADC 14I Dual Slope Integrating Analog to Digital Converter ADC14I $499.00 |
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AEMC 2116.89, Megohmmeter Model 1030 (Digital w/Analog Bargraph, 250V, 500V) $494.00 |
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Allen Bradley Analog to Digital Card 636057-01 D4-8701 Rev 6 $500.00 |
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Tektronix 2210 oscilloscope 50MHZ digital analog combo Tested $399.00 |
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Ameritec Crescendo Analog/1.544M Digital Call Generator CRS-AD $495.00 |
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Tektronix VX4286 32-Channel Programmable VXI Analog / Digital Input Module Tek $487.99 |
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COR5501U oscilloscope 100MHZ digital analog combo Tested $390.00 |
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Wago 750-306 DeviceNet fieldbus coupler 125-500k Baud digital analog signals $452.06 |
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DTV Digital/Analog TV Signal Level Meter RY-1127D $449.99 |
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DTV Digital/Analog TV Signal Level Meter RY-1127D $449.99 |
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DTV Digital/Analog TV Signal Level Meter RY-1127D $448.88 |
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NEW DTV Digital/Analog TV Signal Level Meter RY-1127D CATV Testing 5-870MHZ $418.00 |
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Keithley DAS-1802HC Analog & Digital I/O Board ISA NEW $399.00 |
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AEMC 1035 Megohmmeter Digital w/ Analog Bargraph $399.99 |
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AMERITEC AM 401e Multi Purpose PCM Digital Analog Telecom Tester Line Test $399.99 |
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Acces A1216E Rev D Analog and Digital I/O Card $379.99 |
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Xycom XVME-500/3 VME Board, Analog to Digital w/12 Bit Resolution $379.00 |
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Maximum ST2 – SAT / TV – analog / digital measuring instrument $300.00 |
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DAC729JH BURR BROWN Digital to Analog converter DAC IC – obsolete DAC729 $363.49 |
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Fluke Philips 3380 Analog & Digital Read out Combi Oscilloscope $270.00 |
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DTV Digital/Analog TV Signal Level Meter RY64 $379.99 |
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DTV Digital/Analog TV Signal Level Meter RY64D $379.99 |
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DTV Digital/Analog TV Signal Level Meter RY64 $379.99 |
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DTV Digital/Analog TV Signal Level Meter RY64D $379.99 |
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VC 6523 oscilloscope 20MHZ digital analog combo Tested $299.00 |
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EZ Digital OS5020 Analog Oscilloscope $375.25 |
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Keithley DAS-8 / AO Analog-to-Digital Converter $333.00 |
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10 PCS DAC714HC DAC714 16-Bit DIGITAL-TO-ANALOG CONVERTER $366.99 |
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10 PCS DAC7801KU DAC7801 SOP DIGITAL-TO-ANALOG CONVERTER $358.99 |
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Global Specialties Proto-Board PB-503 Analog & Digital Design Workstation New $318.75 |
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OMRON C500-DA101 DIGITAL ANALOG UNIT 1-5V 0-10V 4-20mA $345.00 |
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ARCE MDAC Digital Analog Converter Decoder w/ Head Amp (MDAC2) $330.00 |
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Mitsubishi PLC Digital/Analog Converter Module A1S62DA $334.00 |
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Allen Bradley, MicroLogix 1000, 1761-L20AWA-5A, Digital & Analog, Excellent $319.95 |
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NEW CATV Cable TV Analog Digital Signal Level Meter DB Tester 46~870MHz $325.00 |
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NEW CATV Cable TV Analog Digital Signal Level Meter DB Tester 46~870MHz $299.00 |
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Elenco XK-700T, Deluxe Digital/Analog Trainer $304.00 |
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CDN209 Aera DEVICE NET DIGITAL ANALOG — 1 YEAR WARANTY $300.00 |
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Oscium iMSO-104 1 Analog+4 Digital Channel Oscilloscope $297.99 |
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ADTECH ANALOG DIGITAL RBM-98 USPP RBM98 $270.25 |
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Leader LV5100D Digital/Analog NTSC / PAL Waveform $250.00 |
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EZ Digital OS-5100 Analog Oscilloscope 100MHz Stand Alone 2-Channel $274.99 |
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Mitsubishi PLC Analog/Digital Converter A1S64AD NIB ! $274.00 |
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VME A TO D Computer Radio Receiver FPGA Controller 4 channels Analog to Digital $250.00 |
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ADTECH ANALOG DIGITAL RBX172/174 USPP RBX172174 $241.50 |
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IOTech ADAC/5501MF-V PCI 16ch 12bit analog 100khz DAQ, 48 digital I/O $250.00 |
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Wago 750-346 DeviceNet ECO FIELDBUS COUPLER 125-500 kBaud DIGITAL AND ANALOG SIG $252.96 |
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Burr-Brown 3652JG analog isolation amplifier+128digital $250.00 |
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Analog Devices AD5228BUJZ10-RL7 Digital Potentiometer 32POS 10KOhm Single 8-Pin $250.00 |
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Omron PLC Module Digital to Analog CQM1-DA021 $250.00 |
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Mitsubishi Analog/Digital Converter A1S64AD NIB $249.00 |
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Crestron ST-IO 4 IN/OUT 8 Relay Module Digital Analog Working Guaranteed ST-10 $249.00 |
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KXPS5 Tri-axis 3g, Digital Analog Accelerometer 100 pieces you get!!! $225.00 |
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Agilent HP 44727AT Digital/Analog Converter Terminal Block $210.00 |
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IOTECH ADC488/16A ANALOG DIGITAL CONVERTER $199.99 |
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AEMC 1026 DIGITAL / ANALOG MEGOHMMETER / INSULATION TESTER $215.00 |
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ADTECH ANALOG DIGITAL MVX-26 USPP MVX26 $195.50 |
Analog Digital Questions
Easy Dvr Recording With Analog, Digital, or Satellite Television
Television and video are terms that are sometimes used interchangeably, but differ in their technical meaning. Video is the visual portion of television, whereas television is the combination of video and audio modulated onto a carrier frequency (i.e., a television channel), so that the signal can be delivered to the receiver (TV or computer/PVR with a TV tuner). The DVR resolutions differ from the way in which a video is recorded.
Analog television
Analog television in NTSC, PAL or SECAM formats, analog cable, or regular VHS tapes use a signal that is fed directly to the electron beam within the television set. There are a number of details on how this is done, but in essence each line in each frame corresponds to a specific fraction of time within the signal.
To record an analog signal a few steps are required. A TV tuner card tunes into a particular frequency and then functions as a frame grabber, breaking the lines into individual pixels and quantizing them into a format that a computer can comprehend. Then the series of frames along with the audio (also sampled and quantized) are compressed into a manageable format, like MPEG-2, or WMF, usually in software. Some TV tuner cards like the DVR-250/350 or the TiVo chip deliver an MPEG-2 or other compressed stream directly to the computer, performing both the frame grabbing and compression in hardware. This greatly reduces the load on the CPU allowing an overall cheaper implementation.
Digital television
Digital television contains audio/visual signals that are broadcast over the air in a digital rather than analog format. Recording digital TV is generally a straightforward capture of the binary MPEG-2 data being received. No expensive hardware is required to quantize and compress the signal (as the television broadcaster has already done this in the studio). The MythTV DVR supports both international DVB signals and American ATSC signals while the TiVo Series 3 supports only the ATSC signals. In the U.S., the FCC attempted to place a road-block before digital DVRs with its “Broadcast flag” regulation. Digital video recorders which had not won prior approval from the FCC for implementing “effective” digital rights management would have been banned from interstate commerce as of July 2005. The regulation was struck down on May 6, 2005.
DVD-based PVRs available on the market as of 2006 are not capable of capturing the full range of the visual signal available with high definition television (HDTV). This is largely because HDTV standards were finalized at a later time than the standards for DVDs. However, DVD-based PVRs can still be used (albeit at reduced visual quality) with HDTV since currently available HDTV sets also have standard A/V connections.
Satellite or digital cable
Recording satellite or digital cable signals on a digital video recorder is more complex than recording analog signals or broadcast digital signals. This is so because the MPEG-2 or MPEG-4 stream is usually encrypted to prevent people from viewing the content without paying for it (usually via subscription).
The satellite or cable set-top box does two things. First, it decrypts the signal. Second, it decodes the MPEG stream into an analog, DVI, or HDMI signal for viewing on the television. In order to record cable/satellite digital signals you must get the signal after it is decrypted, but before it is decoded (between steps one and two); this is how DVRs built into set-top boxes work.
About the Author
Written by David Johnson. Find the latest in Dish Network as well as Dish Network Satellite
Analog Digital Videos
Analog or Digital? (1993)
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