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New FW release: Special fast scanning mode for noise sources

Erik Kaashoek All Messages By This Member #6776 New FW release Version V1.3345 Changes:? - Removed wrong line under big number display - Added special fast scanning mode for noise sources The noise source scanning mode can be activated with DISPLAY/SWEEP ACCURACY/NOISE SOURCE and it reduces a full low input scan from 415ms to 118ms This mode should only be used in combination with a noise source as used for measurement of filters or attenuators as in this mode scanning is done like in a VNA and it is possible small bandwidth sources are not seen. Reducing the number of display points will further reduce the scanning time. Full range 101 points are scanned in 42ms. Great for tuning a filter. -- For more info on the tinySA go to https://tinysa.org/wiki/
geoff M0ORE All Messages By This Member #6778 开云体育 Thanks Erik, New version installed but will delay testing until tomorrow. Geoff. toggle quoted message Show quoted text New FW release Version V1.3345 Changes:? - Removed wrong line under big number display - Added special fast scanning mode for noise sources The noise source scanning mode can be activated with DISPLAY/SWEEP ACCURACY/NOISE SOURCE and it reduces a full low input scan from 415ms to 118ms This mode should only be used in combination with a noise source as used for measurement of filters or attenuators as in this mode scanning is done like in a VNA and it is possible small bandwidth sources are not seen. Reducing the number of display points will further reduce the scanning time. Full range 101 points are scanned in 42ms. Great for tuning a filter. -- For more info on the tinySA go to
pe1hwo All Messages By This Member #6783 A quick try with a BG7TBL no(i)se source, a 50 dB att and a RTL-SDR FM band stopfilter. Which looks very much like the specs and what the NanoVNA measures. A typo Speedup misses an S.

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