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For a quick example of how the generator operates you can look in the user manual for an example of how to set the generator to 25uV rms into a 50R load.

In the image below you can see that my little emulator app agrees with the service manual for a level of 25uV.

i.e. you need to select 72dB attenuation.

Note that on other generators you would have to dial up 50uV EMF on the generator display to get 25uV into 50 ohms (-79dBm)

eg my Marconi 2024 signal generator shows -79dBm as 50uV EMF.

But the 50uV EMF refers to the voltage from the generator when UNTERMINATED. As soon as the generator gets connected to a 50 ohm load then the 50uV EMF will drop to 25uV rms into that 50 ohm load

<blockquote data-quote="G0HZU" data-source="post: 415335" data-attributes="member: 19109">For a quick example of how the generator operates you can look in the user manual for an example of how to set the generator to 25uV rms into a 50R load.In the image below you can see that my little emulator app agrees with the service manual for a level of 25uV.i.e. you need to select 72dB attenuation.<img src="http://media2.turbosport.co.uk/2011/5/201303020205430584925uv.gif" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" />Note that on other generators you would have to dial up 50uV EMF on the generator display to get 25uV into 50 ohms (-79dBm)eg my Marconi 2024 signal generator shows -79dBm as 50uV EMF.But the 50uV EMF refers to the voltage from the generator when UNTERMINATED. As soon as the generator gets connected to a 50 ohm load then the 50uV EMF will drop to 25uV rms into that 50 ohm load <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile&nbsp; &nbsp; :)"&nbsp; data-smilie="1"data-shortname=":)" /></blockquote>

[QUOTE="G0HZU, post: 415335, member: 19109"] For a quick example of how the generator operates you can look in the user manual for an example of how to set the generator to 25uV rms into a 50R load. In the image below you can see that my little emulator app agrees with the service manual for a level of 25uV. i.e. you need to select 72dB attenuation. [img]http://media2.turbosport.co.uk/2011/5/201303020205430584925uv.gif[/img] Note that on other generators you would have to dial up 50uV EMF on the generator display to get 25uV into 50 ohms (-79dBm) eg my Marconi 2024 signal generator shows -79dBm as 50uV EMF. But the 50uV EMF refers to the voltage from the generator when UNTERMINATED. As soon as the generator gets connected to a 50 ohm load then the 50uV EMF will drop to 25uV rms into that 50 ohm load :) [/QUOTE]

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