My SAP Stream is Not Being Watermarked

Updated by Johnny Goldsmith


This document covers how to enable watermarking on your SAP (Secondary Audio Program) feed on AERO.100 and AERO.2000 processors.


In both the AERO.100 and AERO.2000 processors, the most common configuration is 5.1+2+2, which allows the processing of a 5.1 program (in output channels 1-6) and two stereo programs (in output channels 7/8 and 9/10).

Channels 1-6 are used for a station's main programming, while 7/8 are used for an SAP program.

Watermarking SAP Program

Each of these outputs has a separate Nielsen encoder. While outputs 1-6 are for the main program, the 7/8 encoder inserts Nielson codes on the SAP program.

To activate:

  1. Select Instance 1
  2. Select Nielsen Watermark
  3. Select Channel 7/8.
  4. Enter the SID and Check Digits.
If inserting CBET (Critical Band Encoding Technology), the CBET ID and CBET Check Digits also need to be entered.
  1. Click Enable.

When all of the information is valid and entered correctly, the encoder status shows it is running and it is inserting Nielsen codes in the output.

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