Display MoreHi guys,
Really a lot of interesting and useful info can be found here but I still can not find how to
restore my SAA-2N analyzer to its initial factory settings.
Regards,
73
Nick - LZ1ZM
Perhaps the easiest way is to load the firmware again. 
P.S.
After loading the firmware, you need to re-calibrate the device including the touch screen.
the latest version is this:"V2.74" from blackmagic 20201013
which you can download at this link. (pay attention to the version)
...Lucio, I logged in as administrator. In the settings the soundcard was only found in the output field. Without soundcard found in the input I can't play the sound from a WAV/MMV-file.
hi Thomas, forgive me but I still don't understand what kind of radio you are using and how it is connected to the PC. Based on this answer there is a different solution.
Yours appears to be a Windows / microphone access permissions problem. On which device do you send the audio signal from the radio? Set this device as the default recording device. Then make sure that the various programs are authorized to access this device. In Italian I could show you the exact path but in your language I don't know ... Then set the execution of the programs that interest you as administrator. Unfortunately, Windows is originally rather armored and touches to eliminate many software barriers that for our purposes are just annoyances.
Giovanni, this version of VLC should work.
let us know
Hi Giovanni, this is Chinese stuff and I doubt there is a filter inside. If true it would be an advantage since our signal in conversion is on 740 MHz while the limit on the splitter is indicated at 860 MHz.
Giovanni, go easy. There is nothing to lose at 740 MHz. 
Hi Gio, you can safely use a TV-SAT splitter. Be careful, you need a splitter that passes the supply voltage for the LNB to only one output port. The other port must be electrically isolated to avoid possible trouble.
Insertion loss problems do not exist in this case. In fact, the more you attenuate the conversion signal, the better the SDR works.
Ciao Gio, puoi usare tranquillamente uno splitter per TV-SAT. Fai attenzione, ti serve uno splitter cha faccia passare la tensione di alimentazione per l'LNB su di una sola porta di uscita. L'altra porta deve essere elettricamente isolata per evitare possibil guai.
Problemi di perdita di inserzione non esistono in questo caso. Anzi, più attenui il segnale in conversione e meglio funziona l'SDR.
Andreas, look at minute one and ten seconds if that's what you're looking for.
If you read in this forum the unanswered wait from SG-LAB is a constant. Rest assured, the material arrives, your money is safe.
hi Carl,
please read this page:
https://nanorfe.com/nanovna-v2-software.html
If the NanoVNA SAA2N is not recognized try to install these drivers:
Windows driver (CypressDriverInstaller_1.exe)
AMSAT-DL, on Twitter, confirms and provides further details.
Please read the official page linked below. Commercial devices change chips even if the model remains the same. I could report a device that has changed chips in the meantime. Read the following page and search for USB Wired Ethernet Support chipset.
The company Es'HailSat announces that tomorrow, April 1, 2021, the satellite Es'hail-2 will be moved to the orbital position at 30 ° East. This maneuver is necessary due to the entry of the satellite into the constellation of fish. The satellite will remain in this new orbital position for 24 hours and will subsequently be moved back to its assigned position. Customers and satellite users will have to move the antennas to the new location but only for 24 hours. Starting from April 2nd, everything will be as before.
...Disclaimer: I cannot and will not give any technical details of the QO100 transponder due to NDA. But I think it is obvious that any space-qualified transponder oscillator will have very good stability values so for the sake of simplicity we assume it is non-significant compared to the numbers above.
...73s Achim, DH2VA
Ok, it seems fair to me. However some features of the "Melco" Satellite Platform DS2000, the same as Es'Hail-2, are known.
Here the characteristics of the Beacon (commercial). The same that we find on V. 10.706 GHz.
Maybe we can start from here?
P.S.
not everyone is able to receive this Beacon as it transmits on MENA Beam
Hi Phil,
If in your area the TV-SAT dishes are positioned on Astra 28.2 °, all you have to do is position yours in the same direction. Just a little bit to the right. If you have a small Satfinder, like this one in the picture, (6-10Euro) it will be much easier to find TV satellites. Once you are on the right elevation for small horizontal movements it will not be difficult to get to Es'Hail-2 / QO-100
Without irony and with the utmost respect for everyone ...
but you really don't sleep at night for a 70-100 Hz deviation in a 2.4 / 10 GHz amateur system?
Do you think interplanetary probes are more accurate than your system? yet they work, they go to other planets and they don't even have GPS. How will they sleep at night?
"Revision C/D
Will be shared shortly."
no official information at the moment regarding the Rev C/D.
When available we can find them here:
Cosmonauts of Roskosmos, currently working on board the International Space Station, and specialists from the TsNIIMash Mission Control Center (part of the Roscosmos State Corporation) will work on a further plan to eliminate leaks in the Zvezda module on the ISS on March 8, 2021. This was reported on Monday in the press service of the SP Korolev Rocket and Space Corporation Energia. Korolev (part of the Roscosmos State Corporation).
Quote“Today, as part of the work to eliminate leaks in the Zvezda module, the crew of the International Space Station, under the guidance of specialists from the ISS Russian Segment Flight Control Operations Group, will work out in detail a further plan for repair and restoration work,” the press service noted.
The commander of the 64th long-term expedition, Roscosmos cosmonaut Sergei Ryzhikov and ISS-64 flight engineer, Roscosmos cosmonaut Sergei Kud-Sverchkov, in consultation with the Mission Control Center near Moscow, will step by step study the radiogram of further actions and prepare the necessary equipment for processing the module surface, applying sealant and patches.
Source: https://www.roscosmos.ru/30236/
