Delay on WODS-HD3

[George Allen]

The answer, from Mark M., the WBZ radio CE:
"Actually it is in the way the additional program channels are 
encoded. The HD-1 program is encoded in the exciter.  The HD-2 and 
HD-3 are done on a computer that encodes it and delivers the complete 
bit stream to the exciter which the multiplexes it onto the data stream."
   -- George
__________________________________________________

From: Garrett Wollman <wollman@bimajority.org>
To: bri@bostonradio.org
Date: Fri, 13 Feb 2009 00:28:48 -0500
Subject: Delay on WODS-HD3

I don't really know what sort of delays are considered typical for HD3
signals, but the WBZ audio on 103.3-3 seems to be about half a minute
behind the (already delayed) 1030 audio.  Are they running it off a
stream or something?  Surely there must be a low-delay audio path from
1170 over to Birmingham Parkway!
-GAWollman