Eric.Wilson: Difference between revisions

Latest revision as of 16:49, 13 June 2013

4-9-13 -- Here are some useful links to mixers that I found (The second link may be more useful):

Other useful information:

PCB design:

Our radio website:

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 -9-13 -- Here are some useful links to mixers that I found (The second link may be more useful):
 http://www.mhprofessional.com/downloads/products/0071544526/SayreCh07.pdf
+http://www.qsl.net/va3iul/RF%20Mixers/RF_Mixers.pdf
+Other useful information:
-http://www.qsl.net/va3iul/RF%20Mixers/RF_Mixers.pdf
+[http://ea4nz.ure.es/sdr/sdr.html SDR design]
+[http://www.chrisangove.com/ee_ref/attenNF_1b.pdf A good article on noise figure]
+[http://www.ittc.ku.edu/~jstiles/622/handouts/Noise%20Figure%20of%20Passive%20Devices.pdf Noise Figure of Passive Devices]
+[http://www.ittc.ku.edu/~jstiles/622/handouts/Noise%20Figure%20and%20SNR.pdf Noise Figure and SNR]
+[http://www.qsl.net/va3iul/Noise/Understanding%20Noise%20Figure.pdf Understanding Noise Figure]
+[http://www.sm5bsz.com/pcdsp/ntemp.htm On Noise Figures and Noise Temperatures]
+PCB design:
+[http://www.ti.com/lit/ml/slyp173/slyp173.pdf High Speed PCB Layout Techniques]
+Our radio website:
+https://sites.google.com/site/sdrelectronicsproject/
--15-13 -- If you are seeing the LO signal coming through the output of the mixer, it could be that the LO signal is just being picked up on the output due to poor shielding around the mixer. I could disconnect the LO signal from the mixer and it still showed up on the output, indicating the mixer wasn't at fault.