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Custom Designed and Built Satellite Uplink Vehicles
State of the Art H.265 HEVC Video Encoders & Satellite Uplink Antennas
HPA Encoders. Up-Converters, Modulators etc.
Satellite Uplink System Integration Services
Long-Term or Occasional-Use Satellite Transmission Service
Satellite Transponder Bandwidth Efficiency Improvement Service
PrimecomTech's Satellite Transponder Bandwidth Efficiency Improvement Service : _
PrimecomTech uses unique state of the art DoubleTalk Carrier-in‑Carrier based on Comtech's patented Adaptive Cancellation technology
which allows transmit & receive carriers of a duplex link to share the same transponder space hence transponder cost reduced up-to 50%.
DoubleTalk Carrier‑in‑Carrier is complementary to all advances in modem technology including advanced FEC & modulation techniques.
As these technologies approach theoretical limits of power & bandwidth efficiencies DoubleTalk Carrier‑in‑Carrier utilizing advanced signal
processing techniques provides a new dimension in bandwidth efficiency.
Figure 1 shows the typical DoubleTalk Carrier-in-Carrier operation, where the two carriers are overlapping, thus sharing the same spectrum. When observed over a spectrum analyzer, only the Composite is visible.
Figure 2 shows the typical full-duplex satellite link, where the two carriers are adjacent to each other.
Carrier #1 and Carrier # 2 are shown in Figure 1 for reference only.
DoubleTalk Carrier-in-Carrier allows satellite users to achieve spectral efficiencies i.e. bps/Hz that cannot be achieved with traditional links.
For example, DoubleTalk Carrier-in-Carrier when used with 16-QAM approaches the bandwidth efficiency of 256-QAM (8bps/Hz).
As DoubleTalk Carrier-in-Carrier allows equivalent spectral efficiency using a lower order Modulation and/or FEC Code,it can
simultaneously reduce CAPEX by allowing a smaller BUC/HPA and/or antenna.DoubleTalk Carrier-in-Carrier can be used to save
transponder bandwidth and/or transponder power thereby allowing successful deployment in bandwidth-limited as well as power-limited scenarios.
The following example illustrates the typical process for implementing DoubleTalk Carrier-in-Carrier in a power-limited scenario:
DoubleTalk Carrier-in-Carrier Cancellation Process
In a traditional full duplex satellite connection between two sites, separate satellite channels are allocated for each direction.
If both directions transmitted on the same channel, each side would normally find it
impossible to extract the desired signal from the aggregate due to interference originating from its local
modulator. However, since this interference is produced locally, it is possible to estimate and remove its
influence prior to demodulation of the data transmitted from the remote location.
DoubleTalk Carrier-in-Carrier achieves state-of-the-art performance by combining the latest signal
processing technology. It continually estimates and tracks all parametric differences between the local
uplink signal and its image within the downlink.
Primecom Technologies, LLC, has been a trusted provider of satellite communication systems for more than 11 years.
Throughout the years there have been many changes in the industry, yet one thing remains unchanged. Primcom Technologies' dedication to supplying high quality equipment and services for fractions of the price!
Our mission is to listen to our client's specific needs and deliver high performance products and services through continuous product innovation and operational excellence. We carry complete product lines from VSAT Systems to TV Broadcast Equipment in stock, ready to ship out within 24 hours.
We are a business partner, a trusted provider of comprehensive product lines and infrastructure solutions, backed by a solid guarantee, fast and friendly service, and incredible sourcing capabilities.
Our driving force is to bring quality products at low cost to our dedicated customers!
At Primecom Technologies, we:
-Custom Design and Build Satellite Uplink Vehicles
-Manufacture State of the Art H.265 HEVC Video Encoders & Satellite Upink Antennas
-Satellite Uplink System Integration Services
-Satellite Transponder Bandwidth Improvement Services
-Long-Term or OU Satellite Transmission Services
-Resale of Uplink Equipment; such as HPA Encoders. Up-Converters, Modulators etc.
Great quality satellite uplink equipment and even better price. Can't believe it's only been two days since I purchased it and it's already here!
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