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Hi guys,
I measured the sensitivity of our OsmoSDR. For that I did the following commands:
tuner.init! tuner.freq=465000000 tuner.dc_calib! tuner.dc_table! tuner.gain=6,9,9,2,15,15 tuner.iqofs=43,27,0,0
I did the measurements on no-so-even frequencies to avoid any lines in the sprectrum. I increased the power from my signal generator until a SNR of 10dB as achieved. The RX was tuned 100kHz lower than the TX signal and the I/Q offset was calibrated before every measurement.
65.2MHz: -99dBm 145.2MHz: -102dBm 435.2MHz: -104dBm 945.2MHz: -85dBm 1300.2MHz: -89dBm 1500.2MHz: -89dBm 1800.2MHz: -84dBm
Also please note that we have a hole at 1200 MHz - there are no valid PLL settings here.
The RX is not a sensitivity-wonder. Perhaps a preamp?
Best regards, Christian
- -- - --------------------------------------------------- | maintech # Dipl. Inf (FH) Christian Daniel | | GmbH ### Otto-Hahn-Str. 15 · D-97204 Höchberg | - --------------------------------------------------- | AG Würzburg, HRB 8790 Tax-ID DE242279645 | - --------------------------------------------------- | http://www.maintech.de cd@maintech.de | - ---------------------------------------------------