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A project log for NOAA LB-CD

My take on an autonomous satellite image collector grabbing from NOAA 15/18/19. (Leave Behind - Collection Device)

nate-schroederNate Schroeder 01/02/2020 at 03:040 Comments

I would say the collection "box" is about 95% of the way there. Besides paint and some last minute wiring tiding upping (lol), and painting the plate, it's about done. I also have been looking into RF shielding because upon further research I believe that the switching power supply is quite noisy so I'm thinking of wrapping that in aluminum foil. If that's a stupid idea please let me know. Upon preliminary testing using GQRX I am able to get FM broadcasts and UHF/VHF transmissions using one of my Beofeng radio antenna's in a roundabout way using some unnecessarily long cable and adapters. Like I said I've never used and SDR or SDR software so I am not sure what is normal. Radio stations are extremely clear, and I picked up the local NOAA broadcast but it is a little noisy. I tried the SDR on my windows machine and got better results so I am thinking that the power supply is adding some noise? I am going to pickup some PVC pipe for the QFH antenna and will be using this link to build it. Also going to be adding a coax loop which I've heard reduces noise and will be shielding the exposed connections. With any luck I will have some satellite images by the weekend. I will keep everyone, or anyone who is actually reading this, updated! I am very excited with how well it is coming along, it's crazy how accurate CAD is. The drawing that I printed from my CAD sketch for the top plate to cut to size and drill holes was extremely accurate, and I did not measure one thing for this project. All models were from Gradcad.

(BTW: Those exposed wires by the PSU are not live, the switch on the side of the box attached to the outlet is turned off, safety first :D)


-Nate

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