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what program (e.g., sdr#, sdr console, hdsdr, sdruno) are you using for your radio? for step 1, when you run your sdr radio, look for a configuration menu (like a gear) that shows "quadrature sampling". if you click on the drop-down box, you should see something like "q branch". step 2 is the noaa w...

i don't have a mac, but you may be able to figure out how to do it by seeing how i do it on a pc. 1. you can tune your sdr below 28 MHz by direct sampling the Q branch. on sdr sharp, this means changing the sampling mode from quadrature sampling in the configure source menu. 2. go to https://www.nws...

you may have inadvertently created a ground loop and induced 60 Hz power into the system. try disconnecting the ground to the shield. i need to crank up the volume all the way in sdr# for a green signal of 75% in wxtoimg. if i lower the volume in sdr#, the level in wxtoimg also drops up to the point...

just reduce the volume in sdr sharp.

you're right about overloading causing the problem, since i live within a mile or two from am, fm and tv transmitters. am using both am and fm filters, but apparently they are overwhelmed by the strong interference. found that i get best results by using the am and fm filters without an lna, and by ...

recording of noaa 18 satellite pass with 67 deg max elev was unsuccessful. started off with fm trap to rtl-sdr LNA to rtl-sdr dongle running sdrsharp at 0 rf gain and got nothing but noise. looking at the attachment, the pass starts at the top. the black strip is when i turned off sdr sharp temporar...

managed to get bias_tee_on.bat and bias_tee_off.bat to work by changing -d 0 to -d 1 as suggested by github on mar 2, 2018. must be a windows 10 thing. i'll try to get a satellite picture again tomorrow. may have had the rf gain raised and overloaded. now see that raising the rf gain on the dongle d...

tried to activate bias-t on my new lna using the instructions in the v3 dongle user guide, but when i tried to run bias_tee_on.bat, the cmd screen flashed and nothing happened. tried running bias_tee_on.bat in cmd mode, but got a "usb_open error -12". turned on bias t with hdsdr, but signals aren't ...