functions of oscilloscore

[PainterGuy]

hello everyone,

i was able to get a snap of a oscilloscope. please help me know it's functions.
http://img8.imageshack.us/img8/5408/oscillo.jpg

1:- at the top what do "TRIG LEVEL" and "COUPLING" mean?

2:- on the SOURCE switch what do "LINE" and "EXT" mean?

3:- "HOLD OFF" is used to stabalize the signal?

4:- what does "X-Y" button do?

5:- what is function "VAR SWEEP"?

6:- on left side bottom what does "EXT TRIG" port do?

7:- what do "CAL" and "GND" do on right side at bottom?

i am much graful if you can provide me help. many thanks for any help you can provide me.

cheers

[berkeman]

hello everyone,

i was able to get a snap of a oscilloscope. please help me know it's functions.
http://img8.imageshack.us/img8/5408/oscillo.jpg

1:- at the top what do "TRIG LEVEL" and "COUPLING" mean?

2:- on the SOURCE switch what do "LINE" and "EXT" mean?

3:- "HOLD OFF" is used to stabalize the signal?

4:- what does "X-Y" button do?

5:- what is function "VAR SWEEP"?

6:- on left side bottom what does "EXT TRIG" port do?

7:- what do "CAL" and "GND" do on right side at bottom?

i am much graful if you can provide me help. many thanks for any help you can provide me.

cheers

The wikipedia article should answer most of your questions. If you have further questions after reading the article, please post them here.

http://en.wikipedia.org/wiki/Oscilloscope

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[PainterGuy]

The wikipedia article should answer most of your questions. If you have further questions after reading the article, please post them here.

http://en.wikipedia.org/wiki/Oscilloscope

.

okay. i will try to read this article. will ask you for help.

cheers.