diff --git a/applications/lofar2/doc/prestudy/lift_sdp_transient_buffer.txt b/applications/lofar2/doc/prestudy/lift_sdp_transient_buffer.txt
index c647d462e54725f240bf3a51c2701c8ba58a856a..b2ea82ad8188c614b5b4f3cce909b6836098b007 100644
--- a/applications/lofar2/doc/prestudy/lift_sdp_transient_buffer.txt
+++ b/applications/lofar2/doc/prestudy/lift_sdp_transient_buffer.txt
@@ -6,12 +6,23 @@
 https://support.astron.nl/confluence/display/L2M/2022-06-27+LIFT+system+implementation+meeting+notes
 
 a) Transient buffer:
+- dual pol
 - only raw, no subband data
-- cosmic ray uses all antennas of one station, lightning ~ 6 antennas but all Dutch stations
-  . 6 dual pol antennas per station with long baselines
-  . 96 LBA --> 8 - 16 possible useful combinations of 6 antennas --> dependent on RCU allocation
-- cosmic ray is commensal, lightning is dedicated mode
-- cosmic ray 2 ms event, lightning 1 s events
+- sciences:
+  * comic ray
+    - uses all antennas of one station, superterp
+  * lightning
+    - uses ~ 6 antennas but all Dutch stations
+    - 6 dual pol antennas per station with long baselines
+    - 96 LBA --> 8 - 16 possible useful combinations of 6 antennas --> dependent on RCU allocation
+    - external trigger delay < 2 s
+  - cosmic ray is commensal, lightning is dedicated mode
+    - typical thunderstorm duration is 1 - 4 hours
+    - in NL there are about 30 thunderstoms / year
+    - capture > 10 events / 4 hours
+  - cosmic ray 2 ms event, lightning 0.1 - 1 s events
+
+- LIFT HW budget 182 kEuro
 - individually controlled antenna buffers
 - read out via 10GbE via LCU (with local storage, later TCP to CEP) or directly to CEP (UDP)
   . one signal input for 1 s takes 200M * 16b = 0.4 GByte = 3.2 Gbit, so 0.3 s
@@ -26,3 +37,6 @@ b) Transient detection:
 - measure power during 10 us to detect pulse, if > threshold then send pulse detection events
   per signal input via 1GbE
 - e.g. use dead time after a detection to avoid storm of event messages
+
+
+- Waarom kan LIFT niet commensal met BF?
diff --git a/doc/erko_howto_tools.txt b/doc/erko_howto_tools.txt
index fdbb9ae2b7cda20d3332fcd4c28323bb1877df9a..6eabe9613a104b8e301c8d5c6f8bf88c76fe42b7 100755
--- a/doc/erko_howto_tools.txt
+++ b/doc/erko_howto_tools.txt
@@ -199,9 +199,12 @@ kunnen nog ongeveer 35x opslaan, voordat we moeten deleten.
 # Copy rbf image to machine
 scp -rp build/unb2c/quartus/unb2c_test_1GbE_I/unb2c_test_1GbE_I.rbf kooistra@dop421:/home/kooistra/git/upe_gear
 
-# On dop386 of sdp-arts (dop349 = 10.87.0.149)
+# On dop386 of sdp-arts (regtest dop349 = 10.87.0.149)
 scp -rp regtest@10.87.0.149:/home/regtest/hdl_build_result/2023-01-22T04u27_lofar2_unb2b_sdp_station_full_wg_212MHz/lofar2_unb2b_sdp_station_full_wg.rbf /home/kooistra/hdl_build_result
 
+# On dop421 of dts-lab (regtest dop349 = 10.87.0.149)
+scp -rp regtest@10.87.0.149:/home/regtest/hdl_build_result/2023-01-29T01u45_lofar2_unb2c_sdp_station_full_191MHz/lofar2_unb2c_sdp_station_full.rbf /home/kooistra/hdl_build_result
+
 build/unb2c/quartus/unb2c_test_1GbE_I/unb2c_test_1GbE_I.rbf kooistra@dop421:/home/kooistra/git/upe_gear
 
 # Flash and reboot with UPE_GEAR
@@ -233,6 +236,9 @@ sdp_rw.py --host 10.99.0.250 --port 4842 -r firmware_version
 sdp_firmware.py --host 10.99.0.250 --port 4842 -n 64:79 --reboot --image USER
 sdp_rw.py --host 10.99.0.250 --port 4842 -r firmware_version
 
+# MTU wijzigen
+sudo ifconfig enp67s0f1 10.99.0.249 netmask 255.255.0.0 mtu 9000 up
+
 Last SDPFW version used in 2022:
   kooistra@dop386:~/git/sdptr$ sdp_rw.py --host 10.99.0.250 --port 4842 -r firmware_version
   read firmware_version:
@@ -532,6 +538,9 @@ then:
 > ping dop386.astron.nl
 > ping 10.87.0.186 (= dop386)
 
+> ping dop421.astron.nl
+> ping 10.87.0.221 (= dop421)
+
 > ssh -X dop386.astron.nl
 > ssh -X kooistra@10.87.0.186  # dop386 from ASTRON
 > sshdop386  # dop386 terminal, alias in .bashrc
diff --git a/doc/sdp_useful_commands_erko.txt b/doc/sdp_useful_commands_erko.txt
index a8e485ae5d3f54aa2ddffc0608b8540f6e110cda..33d4933132d43eb811f464839530bf26ce21aadd 100644
--- a/doc/sdp_useful_commands_erko.txt
+++ b/doc/sdp_useful_commands_erko.txt
@@ -506,3 +506,13 @@ stat_stream_sst.py --host 10.99.0.250 --port 4842 --ip dop386 --mac dop386 --plo
 # use wg.py in other terminal to control WG
 wg.py  --host 10.99.0.250 --port 4842 --setphase 0 --setfreq 19921875 --setampl 0.5 --enable
 wg.py  --host 10.99.0.250 --port 4842 --disable
+
+
+10) DTS-lab (feb 2023)
+
+kooistra@dop421:~/git/sdptr$ sdp_rw.py --host 10.99.0.250 -r firmware_version
+read firmware_version:
+node  0:  2022-11-21T11.15.47_193f87e53_lofar2_unb2c_sdp_station_full
+node  1:  2022-11-21T11.15.47_193f87e53_lofar2_unb2c_sdp_station_full
+node  2:
+node  3:  2022-11-21T11.15.47_193f87e53_lofar2_unb2c_sdp_station_full