Recent content by wheels1888

I have a presentation to give on the least squares method this week, and am finding the least squares method very intuitive with the exception of one thing: why is the square of the offset used, as opposed to the absolute value? I did a bit of searching, but could not find a detailed answer...

Thanks for the response! We are taking a software defined radio approach to radio astronomy, which is something that hasn't really been done, or at least documented to a great extent, so it's difficult to find information. As a result of using SDR, we aren't using any sort of...

Sooo I wasn't sure if I should put this here or in the astrophysics section, but I figured electrical engineering was more relevant for my question. I'm involved in a project at my university to build a (very) simple radio telescope, but I'm having a bit of trouble with the radiometer...

Oh, right! Sorry, you are definitely correct. I'm mixing up the output and input compressions... Ugh. I think why it was defined as such is because there are a few integrated amplifiers in the mixer. Haha, and don't worry! From what I've read there is a "typical" value for the difference...

Yes that is exactly my logic. Thanks for the input! So, in the case of the mixer I am using where, 1 dB compression (output) = 19 dBm Conversion gain = 27 dB Then, 1 dB compression (input) = 19 dBm - 27 dB = -8 dBm Does this seem correct? The LO drive is designed to range from -3 to...

I am quite inexperienced with actually using mixers, so when I was bombarded with specifications by a data sheet I was a bit intimidated at first. I think I have learned what most of the metrics mean thanks to a great deal of resources available online. I just have one question. The data sheet...