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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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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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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PXI-5670, 2.7 GHz PXI Vector Signal Generator
PXI-5670 / 778768-01
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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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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Digital TV Spectrum Analyzer
DS2831
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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Other CATV Meters
Wuhan Sunma Technology Co., Ltd.
SunmaFiber provide all kinds of CATV meters, such as Signal Level Meter, QAM Analyzer, Spectrum Analyzer, DVB/DVC/DVT Analyzer and other TV testers. also you can find other more equipment in CATV / Broadcasting fileds, such as Three Frequency Points, HFC Return Path Signal Generator, Return Path Signal Generator, Digital RF Signal Generator and so on.
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PXIe-5673E, 6.6 GHz PXI Vector Signal Generator
781263-03
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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Radio Vector Tester
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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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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Gateway
CODA-4589
Hitron Americas Technologies Inc.
The CODA-4589 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.
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Gateway
CODA-4780
Hitron Americas Technologies Inc.
The CODA-4780 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. Its switchable upstream (5~85/5~204MHz) offers the possibility of flexible integration to existing networks.
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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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PXIe-5673E, 6.6 GHz PXI Vector Signal Generator
781340-04
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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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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Power Sensors
RTP5006
Providing the highest video bandwidth and fastest rise times, the 50 MHz to 6 GHz Power Sensor by Boonton is the ideal instrument for fast, accurate and reliable RF power measurements.This module is ideal for many different applications including Crest Factor and Peak to Average Power Ratio (PAPR) measurements for Power Amplifiers and RF components; Telecommunication & Satellite signals: W-CDMA, QAM, OFDM, LTE-FDD and LTE-TDD; WiFi signals: 802.11ac and legacy 802.11 a/g/n/b; RF and Microwave pulse modulated power measurements: RADAR, MRI, Particle Accelerators; General purpose scalar measurements such as gain and return loss using modulated and pulsed signals as well as CW; and Monitoring, Recording, ALC loops, transient phenomena.
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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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IPTV Monitoring and Test Solutions
Net-x TVMS
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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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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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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PXI-5670, 2.7 GHz PXI Vector Signal Generator
778768-02
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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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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RF R-PHY Video Engines
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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Power Sensors
RTP5518
Providing the highest video bandwidth and fastest rise times, the 50 MHz to 18 GHz Power Sensor by Boonton is the ideal instrument for fast, accurate and reliable RF power measurements. This module is ideal for many different applications including Crest Factor and Peak to Average Power Ratio (PAPR) measurements for Power Amplifiers and RF components; Telecommunication & Satellite signals: W-CDMA, QAM, OFDM, LTE-FDD and LTE-TDD; WiFi signals: 802.11ac and legacy 802.11 a/g/n/b; RF and Microwave pulse modulated power measurements: RADAR, MRI, Particle Accelerators; General purpose scalar measurements such as gain and return loss using modulated and pulsed signals as well as CW; and Monitoring, Recording, ALC loops, transient phenomena.
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CATV Meters & Instruments
GAOTek offers high quality, affordable CATV meters and testers to industry engineers. These instruments are used by professionals to automatically or manually test, measure, and maintain a wide collection of systems and channels. Our products are portable and durable to ensure long operational use during everyday field use by CATV technicians. Additionally, we offer QAM analyzers, PCM channel analyzers and TDR cable fault locators.
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MUX-scrambling Modulator
SFT3316
Hangzhou Softel Optic Co., Ltd.
SFT3316 IP Mux-Scrambling modulator is the latest generational Mux-scrambling-modulating all-in-one device developed by SOFTEL. It has 16 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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Gateway
CODA-4789
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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Gateway
CODA-4680
Hitron Americas Technologies Inc.
The CODA-4680 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. Its switchable upstream (5~42/5~85MHz) offers the possibility of flexible integration to existing networks.
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Gateway
CODA-4782
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.
