QAM
a digital bitstream whose values are represented by adjustments in phase and amplitude of sinusoidal electromagnetic waves.
See Also: Quadrature Amplitude Modulation
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Product
QAM Shadow
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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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Product
QAM DVB Analyzer
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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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Product
IP QAM
SFT3332 (-D)
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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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Product
IP QAM
SFT-IPSR3
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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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Product
QAM Signal Analyzer
1720/1730
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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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Product
Digital TV Spectrum Analyzer
DS2831
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Fast Spectrum Analyzer: detect and troubleshoot ingress with exceptional sensitivity of -60dBmV @ 300KHz RBW. Color-Coded Persistence Test: find transient noise hiding under upstream bursty signaling, without disrupting service. MER Measurement: up to 47 dB MER with 48 hours of statistical recording with 1 second resolution. Analog TV and SC-QAM: troubleshoot typical analog interference and distortions as well as SC-QAM performance. Time-Domain EVS Measurements: uncover interference from LTE signals under downstream QAM carriers with no service interruptions.Characterize OFDM carrier performance and DOCSIS 3.1 cable modem performance.
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Product
Gateway
CODA-4782
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Hitron Americas Technologies Inc.
The CODA-4782 has the capability to receive 5Gbps based on 2 x OFDM + 32 QAM over its DOCSIS 3.1 interface. The integrated Wi-Fi 3×3 2.4 GHz 802.11n and 4×4 5 GHz 802.11ac Wave 2 dual band MU-MIMO Access Point significantly improves customer experience extending range and coverage with blazing speeds. For wired clients, the four Gigabit Ethernet ports offer ultra-fast connections. MoCA 2.0 bonding provides a near-Gigabit wired backbone in the customer’s home for Wi-Fi extension. Its switchable upstream (5~85/5~204MHz)offers the possibility of flexible integration to existing networks.
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Product
Radio Vector Tester
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Wuhan Sunma Technology Co., Ltd.
Radio & Vector Network Analyzer adopts the advanced digital and RF combination design technology, fundamental wave frequency mixing technology, digital IF processing technology, intelligent power management technology, etc. It comes with features of high precision, small size, light weight, battery power, can measure SWR, Return Loss, Cable Loss, Impedance, DTF, etc, is used to the field test of cable, feeder, and the reflection parameters test of RF components in science and teaching. SunmaFiber provide all kinds of CATV meters, such as Signal Level Meter, QAM Analyzer, Spectrum Analyzer, DVB/DVC/DVT Analyzer and other TV testers.
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Product
RMS Responding Power Detectors
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Recognized as the pioneer and leader in RF detectors, Analog Devices offers a broad portfolio of high performance logarithmic amplifiers and TruPwr™ rms responding detectors. ADI logarithmic amplifiers measure signals up to 100 dB dynamic range, from dc to microwave, and accuracies of ±0.2 dB, and are well-suited for both RSSI and transmit power level detection. The TruPwr rms detectors address the challenge of measuring complex waveforms found in spread spectrum CDMA/W-CDMA and higher order QAM modulation systems and provide an accurately scaled dc voltage, which is the rms equivalent of the input waveform.
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Product
Noise Source
MNS-1
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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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Product
PXIe-5673E, 6.6 GHz PXI Vector Signal Generator
781340-04
Signal Module
6.6 GHz PXI Vector Signal Generator—The PXIe‑5673E is a wide-bandwidth module that, when combined with the appropriate software, can generate a variety of signals. With the Modulation Toolkit for LabVIEW, it can generate different waveforms including AM, FM, CPM, ASK, FSK, MSK, PSK, QAM (4‑, 16‑, 64‑, and 256‑QAM), multitone signals, arbitrary waveforms, and many others. In addition, you can combine these vector signal generators with standard-specific software to generate signals for GPS, GSM/ EDGE/WCDMA, WLAN, WiMAX, DVB‑C/H/C, ISDB‑T, ZigBee, and others. With PXIe‑5673E stream‑from‑disk capabilities, you can generate continuous waveforms that are up to several terabytes in length.
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Product
Signal Level Meter
XR-3W+
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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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Product
IP GAM
SFT 3316
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Hangzhou Softel Optic Co., Ltd.
SFT 3316 IP Mux-Scrambling modulator is the latest generational Mux-scrambling-modulating all-in-one device developed by Softel. It has 1 6 multiplexing channels, 16 scrambling channels and 16 QAM (DVB-C) modulating channels, and supports maximum 1024 IP input through the GE port and 16 non-adjacent carriers (50MHz~960MHz) output through the RF output interface. The device is also characterized with high integrated level, high performance and low cost. This is very adaptable to newly generation CATV broadcasting system.
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Product
Modulator
SFT3332
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Hangzhou Softel Optic Co., Ltd.
SFT3332 IP Mux-Scrambling modulator is the latest generational 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 also characterized with high integrated level, high performance and low cost. This is very adaptable to newly generation CATV broadcasting system.
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Product
8VSB/QAM And ASI Analysis Probe For USB-2
DTU-236A
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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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Product
Mini Mobile Marker
M3
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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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Product
PXI-5670 , 2.7 GHz RF Vector Signal Generators
778768-04
Vector Signal Generator
2.7 GHz PXI Vector Signal Generator—The PXI‑5670 has the power and flexibility you need for product development applications from design through manufacturing. It can generate custom and standard modulation formats such as AM, FM, PM, ASK, FSK, PSK, MSK, and QAM. The PXI‑5670 delivers a highly flexible and powerful solution for scientific research, consumer electronics, communications, aerospace/defense, and semiconductor test applications as well as for emerging areas including software defined radio, radio frequency identification (RFID), and wireless sensor networks.
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Product
RF Management
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ATX offers several high performance, modular and integrated, RF and L-Band signal management platforms. Operators can easily split/combine RF services in a cost-effective and space-efficient manner. The MAXNET II and SignalOn platforms are CCAP™ compliant and support DOCSIS® 3.1 services up to 1.2 GHz, and also deliver up to 4K QAM signals without impairment due to RF management. ATX also offers the most comprehensive line of RF amplifiers and related products on the market.
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Product
Digital TV signal analyzer
1750QAM
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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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Product
IPTV Monitoring and Test Solutions
Net-x TVMS
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The NET-xTVMS is a system of specialized computer probes networked to the enterprise server and clients. The probes, strategically located at the hub sites next to edge routers and edge QAMs, continuously monitor IPTV QoS with MPEG-TS transport metrics of SPTS and MPTS multicast streams as well as DVB-C MPTS streams. The NET-xTVMS is scalable from 1 to 1000 probes. Several types of probes are available to suit many different monitoring applications. Metrics are collected at the probes and alarms are sent to the server once they exceed predefined thresholds. A system wide alarm matrix, alarm logs and periodic metrics for each location can then be viewed via Internet on client computers.
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Product
Gateway
CODA-4789
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Hitron Americas Technologies Inc.
The CODA-4789 has the capability to receive 5Gbps based on 2 x OFDM + 32 QAM over its DOCSIS 3.1 interface. The integrated Wi-Fi 3×3 2.4 GHz 802.11n and 4×4 5 GHz 802.11ac Wave 2 dual band MU-MIMO Access Point significantly improves customer experience extending range and coverage with blazing speeds. For wired clients, the four Gigabit Ethernet ports offer ultra-fast connections. MoCA 2.0 bonding provides a near-Gigabit wired backbone in the customer’s home for Wi-Fi extension. Its switchable upstream (5~85/5~204MHz) offers the possibility of flexible integration to existing networks.
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Product
Mux-scrambling Modulator 8 Ch
SFT3394C
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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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Product
Satellite Meters
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Wuhan Sunma Technology Co., Ltd.
Satellite Meter is a dedicated instrument for the direct version of the program using ST-Tech, integrated market-seeking Satellite, launched digital search Satellite.Satellite lock accurate, not false positives or missing signals, just listen to the sound of a few seconds can rapidly lock signal frequency. SunmaFiber provide all kinds of CATV meters, such as Signal Level Meter, QAM Analyzer, Spectrum Analyzer, DVB/DVC/DVT Analyzer and other TV testers.
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Product
PXI-5670, 2.7 GHz RF Vector Signal Generators
PXI-5670 / 778768-03
Vector Signal Generator
2.7 GHz PXI Vector Signal Generator—The PXI‑5670 has the power and flexibility you need for product development applications from design through manufacturing. It can generate custom and standard modulation formats such as AM, FM, PM, ASK, FSK, PSK, MSK, and QAM. The PXI‑5670 delivers a highly flexible and powerful solution for scientific research, consumer electronics, communications, aerospace/defense, and semiconductor test applications as well as for emerging areas including software defined radio, radio frequency identification (RFID), and wireless sensor networks.
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Product
Multi-standard Cable/terrestrial Modulator For PCIe
DTA-2111
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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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Product
PXIe-5673E, 6.6 GHz PXI Vector Signal Generator
781262-02
Signal Module
6.6 GHz PXI Vector Signal Generator - The PXIe‑5673E is a wide-bandwidth module that, when combined with the appropriate software, can generate a variety of signals. With the Modulation Toolkit for LabVIEW, it can generate different waveforms including AM, FM, CPM, ASK, FSK, MSK, PSK, QAM (4‑, 16‑, 64‑, and 256‑QAM), multitone signals, arbitrary waveforms, and many others. In addition, you can combine these vector signal generators with standard-specific software to generate signals for GPS, GSM/ EDGE/WCDMA, WLAN, WiMAX, DVB‑C/H/C, ISDB‑T, ZigBee, and others. With PXIe‑5673E stream‑from‑disk capabilities, you can generate continuous waveforms that are up to several terabytes in length.
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Product
RF R-PHY Video Engines
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ATX’s RF R-PHY video engines provide a mux pass-through function that enables cable operators to maintain existing video encryption functionality on in-service edge QAMs, alleviating the need to migrate encryption functionality to the CCAP video core during early stages of DAA transition. ATX RF R-PHY video engines also relieve MSOs of undertaking back-office system integration to reconfigure and manage muxes and broadcast lineups in CCAP video cores. For MSOs considering an accelerated transition to IPTV, the ATX RF R-PHY Video Engine provides a low-cost and low-complexity alternative to implementing a CCAP video core.
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Product
Digital Signal Level Meter
RA2009D
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Radiasun International Group Ltd.
RA2009D comes with a solution that can handle digital TV and maintain the analog spectrum, enable technicians to use it in the most demanding situations with a single, rugged instrument, wherever it is needed. The new QAM View digital analysis option adds forward path digital signal testing that includes constellation, pre/post FEC BER, MER. Analog signal measurements are addressed with standard features like RF signal level, full scan, TILT, in-service C/N, A/V, and FCC compliant autotesting.
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Product
QAM And PCM Analyzers
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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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Product
Mobile Problem Locator
MPL
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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.
