What is the manufacturer and model of teh equipment you are looking for?
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Operating frequency of the probe could be changed by changing the probe model itself... Every model have a different center frequency...
The GE LA39 transducer is supposed to go up to 13Mhz but I can’t get it to display that. Need at least 12Mhz to get certified
The transducer output frequency is likly tied to the application preset, focal position, and/or the field of view (depth setting). Choose a suoperficial imaging application such as thyroid or musculoskeletal, choose the shallowest depth setting and put the focal point near the top of the image and the output frequency should increase.
BTW - that transducer likely has a center frequency of 12 MHz so technically you are compliant with whatever certification demands 12 MHz.
The GE datasheet for the LA39 says it has bandwidth up to 13 MHz. However, the Logiq 400 user manual says it only goes up to 11 MHz. I never measured the actual upper frequency response on a Logiq 400, but I am sure that is at or above the limit of the receivers on this 20-year old system.
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