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These codes achieve rate-1/2 and rate-3/4 respectively. These two matrices give examples of why codes for more than two antennas must sacrifice rate — it is the only way to achieve orthogonality. One particular problem with , / is that it has uneven power among the symbols it transmits.
Free-to-view channels are encrypted but not charged-for, while pay television requires the viewer to subscribe and pay a monthly fee to receive the programming. [ 2 ] Modern systems signals are relayed from a communications satellite on the X band (8–12 GHz) or K u band (12–18 GHz) frequencies requiring only a small dish less than a meter ...
The actual algorithms used to encode and decode the television guide values from and to their time representations were published in 1992, but only for six-digit codes or less. [1] [2] Source code for seven and eight digit codes was written in C and Perl and posted anonymously in 2003. [3]
Figure 3: Illustration of three possible fixes to an antenna violation. In general, antenna violations must be fixed by the router. Possible fixes include: Change the order of the routing layers. If the gate(s) immediately connects to the highest metal layer, no antenna violation will normally occur. This solution is shown in Figure 3(a).
Not included are unlicensed operations, such as carrier current, cable TV, and Internet stations — for example, San Diego State University's "KCR" — which have adopted call-letter-like identifiers that are not officially issued by the FCC.
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Area served Community of license VC RF Callsign Network Notes Asheville/~Greenville–Spartanburg–Anderson: Asheville: 13 13 WLOS: ABC: MyNet on 13.2 , Antenna TV on 13.3, The Nest on 13.4
A space–time code (STC) is a method employed to improve the reliability of data transmission in wireless communication systems using multiple transmit antennas. STCs rely on transmitting multiple, redundant copies of a data stream to the receiver in the hope that at least some of them may survive the physical path between transmission and ...