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Thread: V-COMM Microwave links...........

  1. #1
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    Default V-COMM Microwave links...........

    <table width="94%" border="0"><tbody><tr><td>• A VSAT (Very Small Aperture Terminal) is used to communicate
    via satellite. It can be used to communicate any of the following:<br>
    – Data<br>
    – Voice (VoIP)<br>
    – Video<br>
    – Audio<br>
    • VSAT Equipment consists of
    an Outdoor Unit (ODU) and<br>
    an Indoor Unit (IDU) and connecting cables<br>
    <br>
    <strong>Equipment</strong> <br>
    • Outdoor Unit (ODU)<br>
    – 1.2m parabolic Antenna<br>
    – 2 watt Radio<br>
    Frequency (RF) Unit<br>
    • Indoor Unit (IDU) HughesNet Modem <br>
    • Data: HN7000 – Length/Depth 27cm, Height 22cm and
    Width 4cm<br>
    • Voice: DW6040 –Voice Appliance (VAP). Has 4 voice
    ports and comes as an additional module
    to the Data Modem </td>
    <td><img src="http://www.softnet.mw/index/vsat_explanation.gif" usemap="#coverage" width="381" border="0" height="230"></td>
    </tr>
    </tbody></table>

    <strong>KU Band Vs C-Band</strong> <br>
    • Softnet operates in Ku-Band frequency.<br>
    • Previously, C-Band services were more popular than Ku-band due
    to susceptibility of Ku-Band to weather conditions such as
    rain and fog.<br>
    <br>
    <strong>Why Ku Band?</strong><br>
    • Smaller antennas are required. Less radio power is required in
    Ku-band than C-band to provide the same signal strength.<br>
    • Cheaper :Ku-band equipment is 3 times cheaper than C band.<br>
    • Aesthetically better : A typical Ku-band antenna is 1.2m or 1.8m
    and a typical C-band antenna is 1.8 or 2.4m<br>
    • Softnet’s availability is 99.7% with ACM and AIS.<br>
    FACT!<br>
    Ku-band terminals are in wider use worldwide than C-band
    The majority of users accept a 0.4% difference in availability
    upon consideration of the initial capital investment required.

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