What is a "Test Card" (1 Viewer)

Status
Please reply by conversation.

Otis413

Thread Starter
Active SatelliteGuys Member
Jun 7, 2016
19
12
Cass WV
I can usually find what I'm looking for by using the Search option, but no luck on this one.
Looking at websites like LyngSat I see transponders marked "Test Card", just what is this?

Thanks in advance!
Great Website!
Otis
KD8VBV
 

Brct203

SatelliteGuys Pro
Dec 24, 2016
1,203
1,172
Connecticut
usually that's just a video pattern, like a slide, that is static and fills the channel. For example, the color bar test card. Some will have some text indicating who owns it. Sometimes the audio carries a tone, sometimes it's silent.

They can be used to test equipment, but also to "mark their territory", so that we can tune the receivers even at times where they are not broadcasting.

Many test cards have very specific patterns, and allow a trained technician to quickly measure many indicators of transmission quality just by observing specific details

Test card - Wikipedia

They were probably more common and more useful in the days of analog TV
 

Lone Gunman

SatelliteGuys Pro
Pub Member / Supporter
Mar 19, 2010
3,075
769
southeast
Back in the early OTA TV days we called them a "Test Pattern". They looked a little different than what you see today but they did have the different colors and sometimes a station ID. Back then TV stations didn't broadcast programming 24hrs a day.
 

Martyn

SatelliteGuys Pro
Sep 25, 2005
601
224
Annandale, VA
Test card is British English. We never called them test patterns. That's probably where Lyngsat got the term from.

See my profile picture for a long-running British classic.

Test card trivia: The "x" on the blackboard on the BBC's Testcard F is at the exact center of the frame, enabling TV engineers to line up TVs. Yes, that was all done in the days of analog TV and cathode ray tubes.
 

Alan Rovner

SatelliteGuys Pro
Jan 8, 2013
161
74
Vancouver, WA
The test card is especially useful when it identifies the satellite and transponder. It helps verify you're on the correct bird when setting up a new system.
 
Status
Please reply by conversation.

Users who are viewing this thread

Users Who Are Viewing This Thread (Total: 0, Members: 0, Guests: 0)

Top