It is not the calibrator nor SDRc2RSS nor SDR Console. Below is a plot from my $5k receiver.? It is the difference between a low cost consumer product and a scientific grade product with high quality linear parts and quality circuit design. The RSP1B is fine for Radio JOVE Citizen Scientist work given its reasonable cost many young students can afford.
Plot using Jim Sky DIY Calibrator,?Winradio WR G65DDCe, on?SDR Console, SDRc2RSS, RSS 2.9.80.
On 5/20/2025 12:28:55, Sabine Cremer via groups.io <sc@...> wrote:
On Sun, May 18, 2025 at 01:12 PM, Huub Hameleers SWL/JO21JN wrote:
Not the most pretty curve I have to admit but I guess that's how the RX888 MKII behaves.
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.