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AVQ1010 - ActiveCore™ Transmitter Efficiency Enhancing Platform
Introduction
Targeted to the digital audio and TV broadcasting industry, Avateq's ActiveCore Platform presents an innovative approach to enhancing broadcasting transmitter efficiency and functionality. Being integrated in to a transmitting system, ActiveCore™ Platform serves as a central device to control and monitor the system performance. The Platform combines the most innovative and leading-edge functionalities: adaptive DPD with a high performance signal PAR reduction core, echo and feedback interference canceller, broadcasting signal monitoring receiver and signal envelope tracking.
ActiveCore™ Platform is available as an OEM module or a PCIe card and can be easily integrated into a broadcasting system or power amplifier thanks to its intelligent "RF in - RF out" design. A broadcasting equipment and transmitter manufacturer can now take full control over the system efficiency and performance for virtually any standard found in the broadcasting industry without relying on the modulator used in the system.
The platform eliminates the necessity to adjust or tune a digital broadcasting transmitter or the transmitter's operational parameters in order to account for the modulator design and/or broadcasting standard specifics. This allows designing and manufacturing virtually standard independent digital broadcasting transmitters or power amplifiers that provide significant flexibility in terms of selecting a modulator for a particular application.
By integrating the ActiveCore™ Platform into a digital transmitter system, a broadcasting equipment manufacturer adds enhanced functionality to the whole system and, therefore, increases practical value for its product.
The platform can be used as a broadcast monitoring system (an integrated monitoring receiver) in remote monitoring applications for digital repeaters in broadcasting networks.
A stand-alone unit allows for easy in-field upgrade of existing digital broadcasting systems.
Features:
- Transparent RFin - RFout solution;
- Intelligent design to get the most efficiency from every amplifier - fully adaptive to the amplifier architecture, operating conditions and characteristics;
- Broadcasting signal quality and physical layer analyzer and monitor;
- Adaptive linear and non-linear DPD with PAR reduction engine;
- Envelope Tracking ready - integrated signal envelope shaping engine;
- Effective proprietary adaptive echo and feedback interference cancellation;
- Modulator design independent;
- Support all major broadcasting standards: ISDB-T, ATSC, DTMB, CMMB, DAB, DVB-T/H, DVB-T2, RAVIS, HD Radio, etc.
- Can be adapted to proprietary modulation schemes used in, for example, hybrid "satellite-terrestrial" digital broadcasting;
- No modulator DPD capabilities are required;
- Modular design covering different frequency ranges.
Technical Specification:
| Main signal input RF in: |
-50..0dBm; 470..862 MHz (standard) |
| Feedback signal input RF fbd: |
-50..0dBm; 470..862 MHz (standard), two capturing ports are available |
| Main output RFout |
-50..0dBm; 470..862MHz (standard), input signal level tracing |
| Envelop tracking output: |
user defined shaping with multi-dimensional gain and phase correction; |
| Echo and Feedback interference level: |
up to 20dB (max) above the main signal |
| Feedback interference and echo cancellation: |
>= 40dB |
| Signal MER after Echo and Feedback interference removed: |
>= 35 dB (subject to input level MER) |
| Digital AGC: |
input signal level tracking or fixed gain with AGC/ALC loop |
| MER degradation with DPD and feedback canceller "Off": |
1dB@45dB MER at the unit input |
| Interfaces: |
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| a) hardware: |
Ethernet, USB, CAN, PCIe, RS232 |
| b) software: |
WEB GUI, host based GUI (PC GUI), SNMP, simplified machine-to-machine protocol |
| Power supply: |
5A@12V DC (OEM module)
110-250V, 50/60Hz AC (1U unit) |
| Operating temperature range: |
0..50, °C |
Applications:
- Digital broadcasting Transmitter/Repeater system performance controlling and monitoring module;
- SFN compliant multi-standard Gap-Filler/On-Channel Repeater with integrated Adaptive linear and non-linear DPD;
- Multi-standard OFDM and single carrier broadcasting signals Monitoring Receiver/Analyzer;
- Cost effective solution for digital transmitter design verification, troubleshooting and production;
- Transmitter system performance remote monitor.
Monitoring Capabilities:
- Transmitted signal quality:
* Spectrum Quality (shoulder level)
* Central Frequency
* Signal Bandwidth
* MER
- Broadcasting standard physical layer parameters:
* Constellation
* Symbol and Guard Interval Duration
* Standard Specifics
- General transmitter operating functionality.
Application Block-Diagram:
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Ordering Information:
- AVQ1010-OEM - ActiveCore Transmitter Efficiency Enhancing Platform (OEM module)
- AVQ1010-PCI - ActiveCore Transmitter Efficiency Enhancing Platform (standard PCIe card)
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