I had a few minutes to record a mp3 of some 75M audio
The audio starts at normal 2.7khz filter NR is added then RX-EQ and the audio is tailored with the EQ in the 10 band mode. I switch the NR in and out. When its noisy NR is out. Bin is turned on and it makes a difference in the headphones, but the BIN output does not translate well to the mp3. Its effect is much more dramatic in my brain.
The band is filled with static, s-6 to s-7 with crashes to s-9 +5 and the station is s-7.
On 40m this morning I was watching the S meter while I switched the filters.
The narrowest filter the radio allows is 11hz and at 11hz I was getting about -128 to -130dBm band noise. At 25 I got -128 to -127 dBm At 50 I got -127 to -125 dBm and at 100hz I got -124 to -122 dBm.
JT1R came up on the Cluster and I switched to 80M. With the filter set at 11 or 25 I could hear him out of the noise. Not good enough to copy. I would get JT or 1 or some part of the callsign, but I could hear a coherent signal bobbing out of the noise. At 100hz there was nothing.
MDS on 80 at 11hz is -120dBm and at 100hz is -114dBm 6dB makes a difference!
If you're interested in writing something interesting for this blog regarding your SDR experience let me know. I would like to include things like how your SDR contest station is set up, or your VHF station that uses SDR as the system center, feats of weak signal work or how well the SDR works in various challenging situations. If you are a foreign ham and would like to comment on the growth of SDR in your particular part of the world. Bring it on!
I reserve the right to publish or not, but I'm pretty open to documenting a wide variety of honest experiences from users, for readers to explore. The understanding of SDR in our hobby is so nascent, that I want the reader to be able to see the value of SDR through the eyes of YOUR experience and enthusiasm.