The SCTE and the American National Standards Institute have been busy on the standards front, approving seven standards in the last week. The recently approved standards include:
- SCTE 58 2012, "AM Cross Modulation Measurements," which describes a test procedure for the laboratory and production measurement of amplitude modulation cross modulation (AM-XMOD) that is present in broadband systems that carry frequency division multiplexed (FDM), amplitude modulated, analog video channels.
- SCTE 62 2012, "Measurement Procedure for Noise Figure," which defines a method of measurement for noise figure of active cable equipment. It is intended for measurement of 75-ohm devices having type "F" or 5/8-24 KS connectors, and for the measurement of true broadband noise as opposed to narrowband disturbances.
- SCTE 73 2012, "Test Method for Axial Load Temperature Cycling of Drop Cable/Connector Interface," is intended to evaluate the connection between the connector and the coaxial drop cable when it is subjected to a continuously varying environmental cycle.
- ANSI/SCTE 24-21 2012, "BV16 Speech Codec Specification for Voice over IP Applications in Cable Telephony," contains the description of the BV16 speech codec. BV16 compresses 8 kHz sampled narrowband speech to a bit rate of 16 kbps by employing a speech coding algorithm called two-stage noise feedback coding (TSNFC), developed by Broadcom.
- ANSI/SCTE 24-23 2012, "BV32 Speech Codec Specification for Voice over IP Applications in Cable Telephony," contains the description of the BV32 speech codec. BV32 compresses 16 kHz sampled wideband speech to a bit rate of 32 kbps by employing the TSNFC speech coding algorithm.
- ANSI/SCTE 75 2012, "Test Point Accuracy," describes a procedure for evaluating the accuracy of internal and external RF test points as used to monitor input and output ports of cable equipment.
- ANSI/SCTE 122 2012, "SCTE Recommended Optical Fiber Cable Types for Outside Plant Drop Applications," is intended to provide guidance in selection of a suitable outside plant (OSP) optical drop cable with respect to different application environments.
