H2 HydraQAM

Document created by dwerezak on Apr 30, 2018Last modified by dwerezak on May 23, 2018
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H2 HydraQAM Cable QAM Modulator

H2 HydraQAM - A 16 QAM RF Channel Solution

SED Systems specializes in communications systems, digital signal processing and communication products and we’ve developed a number of modulator cards ideally suited for cable and satellite communication applications.  

When developing a modulator, designing for the requirements of the application is essential.  Designs can be tailored to meet a set of applications based on your requirements. 


Variables may include cost-effective pricing or the ability to meet challenging, high-performance requirements with the flexibility for the product to adapt to evolving signal standards.


The H2 HydraQAM PCIe QAM modulator card offers a versatile and cost-effective solution for MDU and hospitality cable television applications.  Built on existing logic and design knowledge from SED’s original HydraQAM card, SED created a 16 QAM RF channel solution that’s agile within a 160MHz window of spectrum from 46 MHz to 640 MHz. 


The H2 HydraQAM supports J.83 Annex A / B / C QAM modulation and is suitable for Analog NTSC / PAL video applications.  Data interconnection is managed over a PCIe interface or a Gigabit Ethernet interface.  H2 HydraQAM can be easily integrated into existing or new customer products through software using the card’s Linux drivers.


Many Analog Devices components are critical to the performance of the platform and enable a competitively priced BOM. A high sample rate 16-bit digital to analog converter is the key component that generates and drives the superior performance of the signal output.  In addition, other ADI devices like synthesized voltage controlled oscillators (VCOs) and op-amps are important in the signal generation chain.  Additional Analog Devices components like voltage regulators and micro-power regulators ensure all components on the board have reliable, low-noise power that’s available to perform their functions.


SED excels at developing innovative Cable QAM modulator solutions to address not only challenging technical requirements but also streamlined cost-effective solutions.  SED is also proficient at customizing signal generator designs for your product and design requirements including digital video QAM modulator requirements for HFC networks or MDU applications.

With over 50 years’ expertise in custom electronics manufacturing, SED Systems has proven engineering and manufacturing capabilities plus a strong renewing technological base and an international reputation for excellence. 

SED is your trusted embedded solutions provider, ask us your design questions to learn how we can help.