Reply To: HDSDR Compatibility

Hey John and Andy,

John, thanks for working with the unit and giving us the feedback. I’m glad you found the RF adjustment, it’s definitely required for the low level signals. The RF adjustment is the equivalent of changing the reference level from 0 dBm (0) to -50 dBm (50) in our spectrum analysis software.

Andy, I don’t have much experience with other SDR hardware and I don’t have access to anything like the SDRPlay. It is possible there is still some more optimization to be had for the SA44/BB60 in the HDSDR software. I only utilized the basic interface functions. I took a look at the Ext I/O button. The Ext I/O button is going to be hardware dependent. For the SDRPlay, the window that pops up was developed by those guys. It allows you to control the full RF path. I added the RF button and slider for our device which accomplishes similar functionality. Changing the RF slider adjusts the internal attenuators and pre-amp for the SA44. Repeated from the response to John, the RF adjustment is the equivalent of changing the reference level from 0 dBm (0) to -50 dBm (50) in our spectrum analysis software.

Thanks again for the feedback,
Regards,
A.J.