• Get involved.
    We want your input!
    Apply for Membership and join the conversations about everything related to broadcasting.

    After we receive your registration, a moderator will review it. After your registration is approved, you will be permitted to post.
    If you use a disposable or false email address, your registration will be rejected.

    After your membership is approved, please take a minute to tell us a little bit about yourself.
    https://www.radiodiscussions.com/forums/introduce-yourself.1088/

    Thanks in advance and have fun!
    RadioDiscussions Administrators

Unique Problem - HDTV feed differs from SD feed on NBC10 Providence

S

Skynet74

This is very strange. I'm watching the Today Show on NBC 10. On the regular feed, the temperature bug in the corner reads 30 degrees. But when I switch over to NBC 10's HDTV feed, the temperature bug reads 32 degrees. There has been a two degree difference on the two feeds for more than 45 minutes. Why??? IT'S THE SAME STATION! Someone please explain to me how the hell that happens!
 
Its a simple problem, the local affiliate does not have the equipment to do a graphics overlay on HD material. They just pass the network feed direcly over to the viewer.

Other stations, can do the overlay , and they do!
 
Why would there be a temperature on a network feed? (Please don't tell me it's from WNBC-TV New York. They don't use WNBC-TV as an NBC feed, do they?)

Paul
 
NBC has released two seperate CG machines to the affiliates. The machines used to generate the local time/temp during the today show is a PC called the Namedropper. Last year, NBC released an HD version called the... drumroll... the HD Namedropper. It is used in the HD stream. What WJAR is apparently doing is using the older Namedropper in their SD stream , and the newer HD namedropper in the HD stream, and they are on different temperature probes. As far as it sounds, WHDH isn't using a HD namedropper.

The SD namedropper looks for a signal on the video signal blanking line 18 field 1. The signal comes from NBC in New York, which in turn automatically triggers the Namedropper to insert the time temp during the today show. The HD namedropper trigger is probably coming via a data stream off of the Tiernan HD receiver.
 
necrat123 said:
The SD namedropper looks for a signal on the video signal blanking line 18 field 1. The signal comes from NBC in New York, which in turn automatically triggers the Namedropper to insert the time temp during the today show. The HD namedropper trigger is probably coming via a data stream off of the Tiernan HD receiver.
Click to expand...

Strangely enough, the SD and HD Namedroppers are triggered from the same signal. The SD network signal is routed to a spare input on the HD unit, used only to trigger it.
 
That's ODD...

But then again, it IS NBC we're talking about. =)
 
Status
This thread has been closed due to inactivity. You can create a new thread to discuss this topic.


Back
Top Bottom