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Comment on Testing the SDRplay RSPdx in HDR Mode on NDB and Broadcast AM DX by Frederick

You clearly don’t understand NDB modulation. Most are DSB AM using morse as the audio for the modulation. The other sideband is NOT a false image!

Comment on Starlink GRAVES Radar Reflections Received with SDR by Jan de Jong

Thank you for adding this to RTL-SDR.com. I will look forward to other SDR radio observations from other stations to be put on youtube. I have received this with an indoor handmade antenna project of 5 minutes. (aluminum foil on piece of board) The RSP1a is very stable for the temperature fluctuations an so I leave the receiver running for month, occasionally look at the results.

Comment on Updated Meteor M-N2-2 Tutorial and Decoder Now Available by Andrii Segeniuk

The same question. Doesnt work((((

Comment on Airspy 30% Off Black Friday Sale Coupon Now Active by hjkh

Hi! When will the next sale be? Missed this due to timezone.software

Comment on Testing the SDRplay RSPdx in HDR Mode on NDB and Broadcast AM DX by bert

Still getting signal images on this, two signals the same some khz/mhz apart, one false.

Comment on Starlink GRAVES Radar Reflections Received with SDR by Tony

143.049 USB is the setting best for hearing objects from Graves. I got a lovely ping from the ISS last time.

Comment on TechMinds Reviews our RTL-SDR Blog L-Band Patch Antenna + Horn & Dish Mod by Roy

Hi Bert, I would still be intererested in your additional photos …. 🙂

Comment on Testing the SDRplay RSPdx in HDR Mode on NDB and Broadcast AM DX by admin

The weaker signals may have been desensitized by stronger signals (e.g. causing the noise floor to rise). The HDR mode increases dynamic range, reducing that issue and resulting in better SNR.

Comment on Testing the SDRplay RSPdx in HDR Mode on NDB and Broadcast AM DX by snn47

“The results do appear to show that using HDR mode results in an improvement in signal strength.”

Unless the receiver sensitivity varies between HDR on and off, why should the singnal strength increase, unless the propagation attenuation fluctuated between the two settings (likely) or the transmitter EIRP varied due to local changes (weather and varying groundconductivity) ?

Comment on RTL-SDR Tutorial: Receiving NOAA Weather Satellite Images by Sammy

Most likely it would be in the antenna system if you are hearing nothing. Check to make sure you didn’t accidentally short the antenna somewhere. With an ohm meter you should have open between center conductor and shield. You should be able to hear the satellite chirping and then it’s a process of getting the software to co-operate.

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