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
Measurement Power Amplifier
Qam
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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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Product
PXI-5670, 2.7 GHz PXI Vector Signal Generator
PXI-5670 / 778768-01
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
Gateway
CODA-4780
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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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Product
Other CATV Meters
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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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Product
ATSC/DVB-T/QAM VHF/UHF Modulator For PCI
DTA-112
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Cost-effective variant of DTA-115 with 75-Ω BNC main output and support for ATSC, QAM-A/B/C and DVB-T.
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Product
PXIe-5673E, 6.6 GHz PXI Vector Signal Generator
781263-03
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
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
Advanced Monitoring Probe
DVB-C QAM
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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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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.
