diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2018-08-26 08:47:56 +0200 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2018-08-26 08:47:56 +0200 |
| commit | eac19ddab123b63259c696556ac8329b73cbaf40 (patch) | |
| tree | 8d389467949147d535ea48008ba5672d89d28402 /docs | |
| parent | 279dd25b155f886e717a275f8aa5e99b1d654a94 (diff) | |
C-Netz: Allow SDR using C-Netz without calibration options
Crystals on SDRs are accurate enough for C-Netz (< 1ppm).
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/c-netz.html | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/c-netz.html b/docs/c-netz.html index 5f965eb..4a7bef2 100644 --- a/docs/c-netz.html +++ b/docs/c-netz.html @@ -227,13 +227,15 @@ We need to calibrate the speed of our transmit signal (and receive signal as wel <p> <font color="red">Importaint: We need calibrate the signal processing clock!</font> +<br><br> +You can skip this parts, if you use SDR, because they have more accurate crystals than sound cards. </p> <p> First of all we need a reference clock. Since most computers have standard crystal clocks, we cannot use our system clock without any help. I decided to use the help of the NTP daemon. -After running my system for several days (5 days), the clock speed was accurate enough for a base station. +After running my system for one up to 5 days, the clock speed was accurate enough for a base station. Be sure to choose a place for your PC with constant temperature. A room inside a building is sufficient. </p> |