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Hello, where is the topic? 33pF capacitors modification description? I want to try to improve the spurious.

No idea. Suggest you contact your supplier ------------------------------------------ For more info on the tinySA go to https://tinysa.org/wiki/

Well after 3 different computers, 5 different USB ports and 3 different USB cables, no luck.? Anything else to try? Rick W7RMS

Please notice the RBW I used in my screen grabs -- ------------------------------------------ For more info on the tinySA go to https://tinysa.org/wiki/

The cal output is hard coupled to the TCXO. The correction factor is used only for the low and high input frequency calculations ------------------------------------------ For more info on the tinySA

Erik, I measure my 30 MHz. cal output and it was 45 Hertz off.? So I measured the 10 MHz. cal output and it was 15 Hz. off.? I went to CONFIG/EXPERT CONFIG/MORE/CORRECT FREQUENCY and entered

Attached are 2 screenshots with firmware 86 and 88, no spurs. Installed 33pF capacitors some time ago. 73, Rudi DL5FA

Sandro, Be aware the problem is not an offset but a resolution issue. The output frequencies are on a fixed grid. So the maximum error will always stay the same. The TCXO itself is rather accurate.

Thanks for the selftes 6 output. All confirm what I was hoping for. No more needed ------------------------------------------ For more info on the tinySA go to https://tinysa.org/wiki/

Check if there is another device close by. Even a PC keyboard or mouse can cause problems -- ------------------------------------------ For more info on the tinySA go to https://tinysa.org/wiki/

Hello Bruce, thank you for your table. When all the data are in the minus side, adjusting the 10MHz one? step lower(is the resolution), it is possible to reduce the error upper 400 MHz? 100 Hz or

Spoors at 25.432M and 9.688M

Hello Erik, selftest 6 ch> 0:?? 96.678M 1:?? 96.705M 2:?? 96.705M 3:?? 96.678M 4:?? 96.705M 5:?? 92.608M 6:?? 96.705M 7:?? 96.678M 8:?? 93.743M 9:?? 94.159M 10:??

Hmm, i restore back to work after push CPU, look like bad soldering

Installed 33pF capacitors (long time ago) All test complete Command: selftest 6 ch> 0:? ?97.397M 1:? ?98.006M 2:? ?98.892M 3:? ?92.083M 4:? ?92.442M 5:? ?92.802M 6:? ?93.217M 7:?

Erik, I had already installed the recommended bypass capacitors on the pcb to knock down the 48MHz spurs.? With the new v1.1-88 FW,?I saw further improvement.? I would suggest anyone considering

Selftest 6 is? only available in v1.1-88 and only relevant after upgrading to v1.1-88 -- ------------------------------------------ For more info on the tinySA go to https://tinysa.org/wiki/

One user reported a small selftest failure starting after upgrading to v1.1-88 This failure can not be caused by the upgrade to v1.1-88 but the coincidence is a bit worrying. All that upgrade to

Erik, I ca not seem to get seftest 6 to work. Using the console command interface it says the correct syntax is: selftest (1-3) [arg]. I am on 1.1-85 Gary

my list is: 12:??? 96.484M 13:??? 95.211M 14:??? 95.626M 15:??? 95.958M 16:??? 96.373M 17:??? 96.705M 18:??? 97.093M 19:??? 97.397M 20:???