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QAM
a digital bitstream whose values are represented by adjustments in phase and amplitude of sinusoidal electromagnetic waves.
See Also: Quadrature Amplitude Modulation
- Applied Instruments, Inc.
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Signal Level Meter
XR-3W+
From satellite dish alignment, to UHF off-air antenna pointing, to cable TV MER measurements, the XR-3 is the meter for you! The XR-3 is the most capable meter offered by Applied Instruments. It's more durable than the popular Super Buddy meter, and has added features and performance. The XR-3's modular design with field swappable modules provides wide versatility to fit different measurement applications, including DBS satellite (i.e. Dish Network, DIRECTV, Bell TV, Shaw Direct), VSAT satellite (i.e. iDirect, Hughes Ku band, and more), VHF/UHF off-air (analog and ATSC digital), and CATV (QAM and analog). The XR-3 is great for installing and troubleshooting DISH SmartBox, Blonder Tongue, and other SMATV headend systems often used in hotels, multi-dwelling units, and institutional facilities. Modular Test Instrument. Satellite Finder. Installer Signal Meters. CATV Analyzer. Modules.
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IP QAM
SHP200D
Hangzhou Softel Optic Co., Ltd.
SHP200D 10G IP QAM processor is an all-in-one device developed by SOFTEL which integrates multiplexer, scrambler and modulator in one body with maximum 112 DVB-C QAM channels output. With 10G switch built in, it can process 10G optical signal to work as a traditional QAM modulator. This processor is equipped with 2 card slots to load 32ch or 48ch or 64ch QAM card. Its high density helps operators to save cost to the most extent.
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IP QAM
SFT3332 (-D)
Hangzhou Softel Optic Co., Ltd.
SFT3332 (-D) IP QAM modulator is Mux-scrambling-modulating all-in-one device developed by SOFTEL. It has 32 multiplexing channels, 32 scrambling channels and 32 QAM (DVB-C) modulating channels, and supports maximum 1024 IP input through the GE port and 32 non-adjacent carriers (50MHz~960MHz) output through the RF output interface. The device is characterized with dual RF output ports which broaden the bandwidth for QAM carriers.
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QAM Shadow
ComSonics' QAM Shadow is targeted for in-building leakage detection and ingress mitigation when portability and ease-of-use is most important.contractor work verificationevaluate new property wiringingress detection and mitigationextremely easy to use with one-button operationDOCSIS 3.1 ready to future proof your investmentbuilt-in near-field antenna eliminates the need for external antennas
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IP QAM
SFT-IPSR3
Hangzhou Softel Optic Co., Ltd.
SFT-IPSR33 is a 2RU rack-mount IPTV streamer server. It is optimal for small and medium internet service providers to initial setup in large network.
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QAM Compass
ingress detection and mitigationhome certification & installation integrityqualify and QC cable drop and installation wiringtroubleshoot and fix repeat service call problemsqualify new cabinet builds and MDU enclosure wiringbuilt-in multi-frequency antenna provides ease-of-usecontractor work verification evaluate new property wiring
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QAM Signal Analyzer
1720/1730
he very excellent signal analyzers of choice for field testing of QAM digital signals on your CABLE-TV SYSTEM.They demodulate and accurately measure the QAM signals carried through the cable system.They provide the measurement power the field technicians need for the latest 64-256QAM digital technologies and are very simple to use, measuring SNR(MER), EVM, Pre-BER, Post-BER, Constellation Diagram.
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QAM DVB Analyzer
Wuhan Sunma Technology Co., Ltd.
QAM Analyzer designed for both installation and maintenance of HFC system. Measure and display main parameters in DVB testing (channel power, MER, BER, Constellation Diagram), signal level on any frequency, amplitude of the carriers singly in the whole system range, and etc. The Analog, QAM and FM channel can be set and tested efficiently; it also supports HUM measurement, C/N measurement, voltmeter function, spectrum analysis and data logging. Also it is easy for user to obtain a report of test data via PC or printer through toolbox software.
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QAM And PCM Analyzers
GAOTek provides a wide range of high performance and inexpensive QAM/PCM analyzers. Quadrature amplitude modulation (QAM) and pulse code modulation (PCM) analyzers are convenient instruments with top to bottom estimations and adaptable setups. Additionally, these devices have integrated functions of analog signal generators/receivers, BERT, signaling generators/receivers, selective level meters, ring generators/ identifications, dialers, DC loop circuits (ICT, OGT), balanced bridges and reflecting bridges into solitary instruments. These analyzers are ideal for installing and maintaining digital and analog networks.
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Quad QAM Modulator With IP Input
DTE-3114
DekTec's standalone power-over-ethernet enabled Quad QAM Modulator with IP Input, with advanced time-reconstruction algorithm to overcome IP jitter.
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Analog TV Analyzer
BT-QAM-PRO
Blonder Tongue Laboratories, Inc.
The BT-QAM-PRO is an economical feature-packed test instrument for analyzing CATV QAM and Broadcast 8VSB digital channels, as well as NTSC analog channels. This compact instrument is designed with field service technicians in mind and provides many of the features that are typically only found in many higher-priced units. The BT-QAM-PRO comes complete with a soft water-resistant case and a micro USB charging/PC cable.
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Measurement Power Amplifier
Qam
The amplifier is DSP controlled, with a very straightforward operation. Included is a white/pink noise signal generator. The internal signal module provides low crest noise signals to be able to reach high power levels from sound sources or electromagnetic shaker. External input of signal is equally possible, with spectral linearisation or without. This can be used for music, RASTI or any other signal
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Off-Air
AIRCASTER
Blonder Tongue Laboratories, Inc.
The Aircaster(R) AQT8 Series enables custom IP and/or QAM output channel lineups from up to 8 off-air ATSC 1.0 or QAM frequencies.
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Video Transcoding
Blonder Tongue Laboratories, Inc.
Have a video coming in on QAM that needs to go out on IP? Or VSB channels that need to be turned into QAM or IP outputs? Our Transcoders will definitely fit the bill.
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Cable TV analysers
Specific field meters for CATV, QAM, DOCSIS and EuroDOCSIS 3.0. Its rugged construction ensures a long lifetime.
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Noise Source
MNS-1
Matrix Test Equipment Incorporated
The MNS-1 is a shaped noise source that can be used toemulate 2 bands of digital carriers. While it does not havethe necessary attributes to generate a constellation, it doesmimic the loading of QAM carriers. The MNS-2 featuresremotely controllable 6 MHz wide notch filters to allowintroducing a QAM carrier capable of generating a constellationand enabling measurement of Modulation Error Ratio (MER) andBit Error Rate (BER).
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Multi-standard Cable/terrestrial Modulator For PCI
DTA-115
DekTec's PCI modulator for most QAM-, OFDM- and VSB-based modulation standards. The DTA-115 has a programmable output level with perfect signal quality.
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Multi-standard Cable/terrestrial Modulator For PCIe
DTA-2111
DekTec's PCIe modulator for most QAM-, OFDM- and VSB-based modulation standards. The DTA-2111 has a programmable output level with excellent signal quality due to digital upconversion.
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Satellite Signal Level Meters
Modular design with field swappable modules providing versatility for different measurement applications, including DBS satellite, VSAT satellite, VHF/UHF off-air, and CATV (QAM and analog).
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8VSB/QAM And ASI Analysis Probe For USB-2
DTU-236A
DekTec's USB-2 hardware-based analyzer for 8VSB and QAM. Equipped with advanced RF measurement options and designed to operate USB powered, this is a very convenient tool for analysis in the field.
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IP Converters
SMPTE-2022 compliant standalone solutions for conversion between IP and "traditional" DTV signals such as ASI and QAM. These IP converters are hardware-based, providing low latency and zero-jitter transmission of IP signals.
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Mux-scrambling Modulator 8 Ch
SFT3394C
Hangzhou Softel Optic Co., Ltd.
SFT3394C is a high performance and cost-effective QAM modulator designed by Softel. It has 16 DVB-S/S2 FTA tuner input to 16 non-adjacent carrier output with multiplexing, scrambling and QAM modulating included. It also supports maximum 512 IP input port and one IP (MPTS) output through GE1 and TS input for re-mux through 2 ASI ports. SFT3394C is also characterized with high integrated level, high performance and low cost. It supports dual power supply (optional). This is very adaptable to newly generation CATV broadcasting system.
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16 Mux-scrambling Modulator
Hangzhou Softel Optic Co., Ltd.
SFT3394C is a high performance and cost-effective QAM modulator designed by Softel. It has 16 DVB-S/S2 FTA tuner input to 16 non-adjacent carrier output with multiplexing, scrambling and QAM modulating included. It also supports maximum 512 IP input port and one IP (MPTS) output through GE1 and TS input for re-mux through 2 ASI ports. SFT3394C is also characterized with high integrated level, high performance and low cost. It supports dual power supply (optional). This is very adaptable to newly generation CATV broadcasting system.
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Digital TV signal analyzer
1750QAM
DIGITAL TV SIGNAL ANALYZER 1750QAM? The very excellent signal analyzers of choice for field testing of QAM digital signals on your CABLE-TV SYSTEM.They demodulate and accurately measure the QAM signals carried through the cable system.They provide the measurement power the field technicians need for the latest 64-256QAM digital technologies and are very simple to use, measuring SNR(MER), EVM, Pre-BER, Post-BER, Constellation Diagram.
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Modulator
SFT3301
Hangzhou Softel Optic Co., Ltd.
SFT3301 QAM modulator is a high performance modulator developed according to DVB-C (EN300429) standard which is the standard of the European broadband satellite telecommunication. It provides a more powerful receiving ability of various TS come from encoder, multiplexer, DVB gateway, scrambler and video server. In addition, the modulator also has the function of outputting RF, and simultaneously disposes the TS by RS encoding, convolution interlacing and QAM modulating. This device supports local and remote control through NMS software. For the field scope, it can be used for Broadcasting, Interactive Services, News Gathering and other Broadband satellite applications.
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Handheld Signal Level Meter
CT-DLM870D
The CT-DLM870D is a hand held signal level meter capable of reading analog, digital QAM and digital off air signal levels as well as Carrier to Noise, Bit Error Rate (BER), Modulation Error Rate (MER) and tilt.
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Mini Mobile Marker
M3
ComSonics' M3 offers high pressure drop and in-building cable integrity troubleshooting. The M3 also provides triple frequency detection to ensure compete spectrum coverage. Targeted for use with ComSonics' QAM Compass to provide home certification and installation integrity.
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Mobile Problem Locator
MPL
The ComSonics Mobile Problem Locator (MPL) application is a smart phone application designed to provide cable technicians with a simple tool to help maintain their network. Targeted for use with ComSonics' QAM Compass via Bluetooth connection to provide contractor work verification.
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Advanced Monitoring Probe
DVB-C QAM
Combined with a Network Monitoring System or not, the EdgeProbe Advanced provides a powerful broadcast network alert & diagnosis tool allowing DTV network operators to monitor global trends and anticipate potential failures.EdgeProbe Advanced is able to monitor DVB-C and DVB-C2 signals at transmitter outputs, through its RF inputs (up to 4 in 1RU), as well as at modulator input and at Head-End/distribution links, through its ASI and IP inputs.
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Test Solutions
AT/CX/CM Series
The VeEX AT/CX/CM series are next generation test solutions designed for analog and digital cable TV networks supporting VoIP, WiFi, and Internet service. Analog and Digital SLM, ingress noise sweep, deep interleave support, and QAM constellation analysis are among many standard features. Enhanced optional features include QAM16/64/128 Upstream Generation (USG), Reverse Path QAM Analysis, and DOCSIS 2.0/DOCSIS 3.0 Cable Modem emulation. A high capacity LiIon battery pack provides extended autonomy for a full day use with only a single charge.
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Cable Expert
AT/CX/CM Series
The VeEX® AT/CX/CM series are next generation test solutions designed for analog and digital cable TV networks supporting VoIP, WiFi, and Internet service. Analog and Digital SLM, ingress noise sweep, deep interleave support, and QAM constellation analysis are among many standard features. Enhanced optional features include QAM16/64/128 Upstream Generation (USG), Reverse Path QAM Analysis, and DOCSIS 2.0/DOCSIS 3.0 Cable Modem emulation. A high capacity LiIon battery pack provides extended autonomy for a full day use with only a single charge.
