Excellent detail, thanks for sharing! The later advice for re-sampling the signal is greatly appreciated, as I've not read that before and makes sense for signal pre-processing. In case you face some problem decoding the. If you move the cursor of your mouse over the infared image you can notice the temperature of a particular position on the map bottom right. Channel 1 of the satellite's radiometer is the earth image in visible light when channel 4 is an infrared image. In the top you can notice something like "NOAA ch ", this means that one image comes from channel 1 of the satellite's radiometer and the other image comes from channel 4. If you choose normal, you would see two image. Record the "tick-tock" sound as the satellite passes over your geographical position and save the. Tune to the frequency of the satellite you want to receive and set your filter's width to be at least 34KHz. The antenna should tune at For this design, the longer loop consists of 2. To create the bandpass filter, I used two 2. I bought the bandstop filter from AliExpress, here's the schematic in case you want to built it yourself. The signal is transmitted from the antenna via the transmission to the FM bandstop filter where noise from radio stations is eliminated. The standing wave ratio SWR of this antenna was measured to be 1. Since the antenna is used as a receiver, the source should be on the top. The reception will still be good! Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson. These are the things you are going to need in case you want to copy my systemalternatively you can just use the antenna and a transmitting line to connect it to the SDR. This is a guide aiming to help you build an inexpensive APT ground station.
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