Very cool video and great usage of cheaper components! Am a bit confused on one aspect though. What's do you use the total/sum of the SNR for? To me, that doesn't really seem like a DIRECTLY useful stat; do you use it to infer other stats? Or something else?
Hi Jared, Thankyou, the Sum snr of all the used satellites in used for the bargraph to have a more dynamic display and it shows the overall signal strength, only bcs eventually a couple of sats are doing great and all other’s in use are borderline, that does not mean i have the best reception/antenna position cheers , Konstantin
and here we are again, GPS is not a single signal but a constellation of satellites. So although nothing here is against to this video which is great, combining the Signal Strength of GPS does not make sense at all. Than here on satellite navigation we do not talk about dB, dBm or whatever, but we use the measure of C/No.
Hello Maurizio, please read the Video Description, there I write, that I use SNr for simplicity and that in real it is C/No in dB-Hz. And why the Sum does not make any Sense at all ? Its a relative Value that gives a rough Picture of the Overall Reception Quality, for that the Design is all about, nothing more and it is adequate to check the Overall reception at a specific Spot ! And Btw, even Linux GPSD calls it snr for simplicity!
Nice schematic and design Kon
Efxaristo Ntino, sto second part to teliomeno appliance, Xeretimata
Very cool video and great usage of cheaper components!
Am a bit confused on one aspect though. What's do you use the total/sum of the SNR for? To me, that doesn't really seem like a DIRECTLY useful stat; do you use it to infer other stats? Or something else?
Hi Jared, Thankyou, the Sum snr of all the used satellites in used for the bargraph to have a more dynamic display and it shows the overall signal strength, only bcs eventually a couple of sats are doing great and all other’s in use are borderline, that does not mean i have the best reception/antenna position cheers , Konstantin
Gotcha, thanks! I had figured that's more or less what it was for, thanks for the confirmation
and here we are again, GPS is not a single signal but a constellation of satellites. So although nothing here is against to this video which is great, combining the Signal Strength of GPS does not make sense at all. Than here on satellite navigation we do not talk about dB, dBm or whatever, but we use the measure of C/No.
Hello Maurizio, please read the Video Description, there I write, that I use SNr for simplicity and that in real it is C/No in dB-Hz. And why the Sum does not make any Sense at all ? Its a relative Value that gives a rough Picture of the Overall Reception Quality, for that the Design is all about, nothing more and it is adequate to check the Overall reception at a specific Spot !
And Btw, even Linux GPSD calls it snr for simplicity!