diff options
Diffstat (limited to 'host/docs')
| -rw-r--r-- | host/docs/rd_testing.dox | 6 | ||||
| -rw-r--r-- | host/docs/vrt_chdr.dox | 2 |
2 files changed, 4 insertions, 4 deletions
diff --git a/host/docs/rd_testing.dox b/host/docs/rd_testing.dox index a9105d2bb..1cd2bf7d0 100644 --- a/host/docs/rd_testing.dox +++ b/host/docs/rd_testing.dox @@ -261,7 +261,7 @@ to change sample rate while streaming. - E3x0: 0.1, 0.5, 1, 1.143, 1.684 MHz 7. Repeat on each RX channel of the device. 8. This test fails if: - - DC offset and IQ imbalance tones are unusally large + - DC offset and IQ imbalance tones are unusually large - There are any other strong tones or spectrum distortion - The spectrum changes significantly between frequencies or sample rates - An initial transient distortion is acceptable @@ -469,7 +469,7 @@ Correct synchronization with PPS and 10 MHz references is required for these tes --start-freq <lowest daughterboard frequency> --stop-freq <highest daughterboard frequency> \ 9. Tune signal generator to displayed frequency + 2 MHz and start measurement -11. Inspect error plot if phase difference stays the same across retunes. Drift over time must be significantely lower than 1 degree and deviation must be well below 2 degrees. +11. Inspect error plot if phase difference stays the same across retunes. Drift over time must be significantly lower than 1 degree and deviation must be well below 2 degrees. 12. Verify result with terminal output and note result for current test frequency. 13. Repeat steps 9.-12. for remaining bands @@ -481,7 +481,7 @@ tbd \subsection rdtesting_phase_rx_twinrx TwinRX specifics for phase alignment testing Phase alignment testing with TwinRX works as described above with additional test cases and commandline options. -TwinRX offers LO sharing inside one board and across boards. For uhd_app and derived applications involving our tools and GNU Radio we have introduced `--lo-source {internal, companion, external}` and `--lo-export {True, False}` arguments to apply LO sharing feartures on TwinRX daughterboards. +TwinRX offers LO sharing inside one board and across boards. For uhd_app and derived applications involving our tools and GNU Radio we have introduced `--lo-source {internal, companion, external}` and `--lo-export {True, False}` arguments to apply LO sharing features on TwinRX daughterboards. Two testcases have to pass: - Phase alignment if sharing LO with companion receiver on a single daughterboard - Phase alignment if sharing LO with external TwinRX daughterboard diff --git a/host/docs/vrt_chdr.dox b/host/docs/vrt_chdr.dox index 8675349f9..057294659 100644 --- a/host/docs/vrt_chdr.dox +++ b/host/docs/vrt_chdr.dox @@ -23,7 +23,7 @@ The full standard is available from the VITA website: http://www.vita.com . For the third generation of Ettus devices, a new type transport protocol was designed. It reduces the complexity of the original standard and uses a fixed-length 64-Bit header -for everything except the timestamp. Because it is "compressed" into a 64-bit heaer, it +for everything except the timestamp. Because it is "compressed" into a 64-bit header, it was dubbed CHDR (pronounced like the cheese "cheddar"). By compressing all information into a 64-bit line, the header can efficiently be parsed |