[Elecraft] AT1 question

Ralf Wilhelm ralf at super-deutschland.net
Fri Jun 6 16:49:57 EDT 2014


Harlan,

You should get 0.1 volts when you terminate your attentuator with 50 Ohms - are you probably using a high z voltmeter? The output of the attentuator can be seen as a 0.2 V voltage source with 50 ohms internal resistance - if you terminate it with a 50 ohms load, the 0.2 volts are divided between the internal resistance and the load, but if you use a high z termination instead, the voltage drop on across the high z is 0.2 volts...

Greetings

Ralf, DL6OAP


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