Spectrum Analyser Low Frequency Measurements

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sjaszkowiak
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Joined: Tue Jun 09, 2020 9:05 pm

Spectrum Analyser Low Frequency Measurements

Post by sjaszkowiak »

I am using a 2205A to do spectrum analysis in the audio frequency range. While things are working great for higher frequencies low frequency measurements are not accurate. The attached image is of a simple setup with the output of the signal generator connect to input A. As you can see the range from 100hz down to 100mhz has a ramp of almost 14db which is not correct. Do you have any ideas as to how I can correct this?
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Gerry
PICO STAFF
PICO STAFF
Posts: 1145
Joined: Mon Aug 11, 2014 11:14 am

Re: Spectrum Analyser Low Frequency Measurements

Post by Gerry »

Hi sjaszkowiak,

Apologies for the delay in answering. Coronavirus has had its toll on our ability to respond to posts on the forum.

Could you post the image and psdata file.

Regards,

Gerry
Gerry
Technical Specialist
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