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When I look at the calibration curve that Chuck created with the RSP1B, I would suspect that the curve is messed up somewhere in SDRconsole or SDRc2RSS. Sabine -- Germany Standard time: UTC +1 hour

Here's a very interesting explanation of how and why the modern FFT came to exist in the 1960s, then we discover that Gauss had already invented it, but never published it. Veritasium - The Most

Chuck, All, Chuck, yes that is not bad given that we are using consumer grade receivers, not scientific instruments.? \Foe receiving Jupiter's weak signals we want to emphasize the left bottom weak

Good evening....two weak events....maybe A lot of strong, local lightning recently. Off-topic...many evenings after submitting an events' report I'll turn on my ham radio and spend some time using

Richard Inexpensive enough so worth a try,.20 dB may be too much and it might need a variable attenuator so you have control. Larry

Hi Huub, That looks better, especially setting the attenuation to zero.? It would be nice to get a more linear curve, but maybe that is what RX-888 gives.? My curve is more linear than yours, but

Hi Larry, Adding a low-noise RF preamp sounds like an idea that would bring up the weaker signals.? I found this one on Amazon:

Hi folks, I too am having trouble getting a good Cal curve. Using the standard Radio JOVE setup with the RSP1B receiver. I managed to get a decent Cal curve using these settings: RF Gain = 9 IF Gain =

Hi Sabine, For those inflicted with RFI -- i.e., most of us -- sadly, windowing is absolutely necessary. As you said, FFT leakage is a concern for coherent emission -- like radio stations and radar.

Sabine, Yes your technically correct the FFT window is always on but you can select or deselect the various filter algorithms. Thanks. Larry _______________________ Click for K4LED Reference Links:

Larry, shortly after sending the message, I felt like I'd already started this discussion before. Sorry if I'm annoying. By the way, windowing can't really be turned off. Without one of the windows

Hi Richard, I've done some more testing today. Moving the band-scope ?lower or higher didn't make any difference. Same calibration curve everywhere. That's a good thing I guess. Then I fiddled a bit

Yes, windowing was not selected for that spectrogram. Sent: Monday, May 19, 2025 2:17 AM To: [email protected] Subject: Re: [Radio JOVE] Solar and RF fadeout North Tasmania, Australia Sabine, Luke

Hi Richard, This morning I realised I should have given you the full picture about the full bandwidth image I send you. So I zoomed in to the Jove band on my RX888 (RX2FITS) recording (the darker

That is wonderful, Huub. I am so glad to see this kind of innovation in Jove. We need people like you and Sabine! Aloha, Jim <huub@...> wrote:

Richard, Your calibration spectrum as-is isn’t terrible. It’s just not seeing the very weakest signals. Actually for weak Jupiter signals using an RSP1B is a better choice with more gain and less

Hi Larry, Our RX-888s run a bit warm to the touch, but not hot.?? We could certainly get some small fans that run from a USB port.?? Are you thinking that if we cooled the RX-888s that that would

Richard, You could try adding a small amount of RF antenna gain ahead of the RS888 MKII.? You can find low noise RF preamp on Amazon fairly inexpensive. Keeping the RX888 cool is a good idea. They

Hi Larry, Thanks for that explanation.? Do you have any guidance about how to get the beginning of the calibration curve down to the lower left hand corner of the graph? Richard

Hi Richard, I agree, bringer the attenuation to 20 dB will reduce sensitivity. But in this case I was trying to reach the full dynamic range. I'm sure there is a way to find the sweet spot between