From ab305a906f0809e79d765da504618c0bbaa1d8cf Mon Sep 17 00:00:00 2001 From: erickshepherdNI Date: Fri, 6 Dec 2019 15:51:39 -0600 Subject: X310: update UBX/SBX gain settings for phase alignment testing Update UBX and SBX gain settings in the manual for phase alignment testing. --- host/docs/rd_testing.dox | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'host/docs') diff --git a/host/docs/rd_testing.dox b/host/docs/rd_testing.dox index 9b67e0d7b..816e338f5 100644 --- a/host/docs/rd_testing.dox +++ b/host/docs/rd_testing.dox @@ -788,12 +788,12 @@ Software Required 3. Connect host to both X3x0s. 4. Connect 10 MHz and PPS from Octoclock-G to both X3x0s. 5. Connect Signal Generator to input of splitter and outputs of the splitter to the RX2 port on each daughterboard. -6. Set Signal Generator output power at -30 dBm. +6. Set Signal Generator output power at -35 dBm for UBX and -29 dBm for SBX. 7. From the top of the UHD source, run the command: - - `./tools/gr-usrptest/apps/usrp_phasealignment.py --args "addr0=,addr1=,dboard_clock_rate=20e6" --clock-source external --time-source external --sync pps --spec "A:0" --channels 0,1 -s 10e6 -g 25 -f \ --freq-bands \<# frequency bands\> --start-freq \ --stop-freq \ --duration 2.0 --auto` + - `./tools/gr-usrptest/apps/usrp_phasealignment.py --args "addr0=,addr1=,dboard_clock_rate=20e6" --clock-source external --time-source external --sync pps --spec "A:0" --channels 0,1 -s 10e6 -g \<33 if UBX 37.5 if SBX\> -f \ --freq-bands \<# frequency bands\> --start-freq \ --stop-freq \ --duration 2.0 --auto` -8. At each frequency step, tune Signal Generator to the displayed frequency + 1 MHz and increase output power by 2dB. +8. At each frequency step, tune Signal Generator to the displayed frequency + 1 MHz and increase output power by 1dB. 9. Analyze terminal output. The "run avg" across all runs should not deviate more than 2 degrees and the "stddev" for any run should not deviate more than 2 degrees. \subsection rdtesting_phase_rx_N2x0_MIMO N2x0 MIMO with SBX -- cgit v1.2.3