signal generator impedance

  • Thread starter krishmaniac@hotmail.com
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krishmaniac@hotmail.com

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I have a signal generator with its output BNC labelled 50onms. What
does it mean? Does it mean it has pure resistive 50ohms source
impedance ? or Does it mean i have to terminate the coax i use with
50ohms from where i tap the signal?
 
krishmaniac@hotmail.com wrote:

I have a signal generator with its output BNC labelled 50onms. What
does it mean? Does it mean it has pure resistive 50ohms source
impedance ? or Does it mean i have to terminate the coax i use with
50ohms from where i tap the signal?

Yes.
 
krishmaniac@hotmail.com wrote:

I have a signal generator with its output BNC labelled 50onms. What
does it mean? Does it mean it has pure resistive 50ohms source
impedance ? or Does it mean i have to terminate the coax i use with
50ohms from where i tap the signal?
Probably the first one.
Chris
 
krishmaniac@hotmail.com wrote:
I have a signal generator with its output BNC labelled 50onms. What
does it mean? Does it mean it has pure resistive 50ohms source
impedance ? or Does it mean i have to terminate the coax i use with
50ohms from where i tap the signal?
Yes.

For best results you should run the generator into a 50 ohm load.
Then the output voltage should match the setting on the generator.
Into an open circuit it will be close to twice the indicated voltage.
 

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