Change in osmo-gsm-tester[master]: rfemu_srsenb_stdin: use negative dB value to set attenuation

[srs_andre]

srs_andre has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-gsm-tester/+/20641 )


Change subject: rfemu_srsenb_stdin: use negative dB value to set attenuation
......................................................................

rfemu_srsenb_stdin: use negative dB value to set attenuation

the logic for the RF emulator on the command line is, like the
Amarisoft equivalent, to set a negative gain value to express
attenuation. Therefore, the sign needs to be inverted.

Change-Id: I7b6ac611a9f711bbdc1570602bfd797a5346ab86
---
M src/osmo_gsm_tester/obj/rfemu_srsenb_stdin.py
1 file changed, 1 insertion(+), 1 deletion(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-gsm-tester refs/changes/41/20641/1

diff --git a/src/osmo_gsm_tester/obj/rfemu_srsenb_stdin.py b/src/osmo_gsm_tester/obj/rfemu_srsenb_stdin.py
index ca23020..e4aec19 100644
--- a/src/osmo_gsm_tester/obj/rfemu_srsenb_stdin.py
+++ b/src/osmo_gsm_tester/obj/rfemu_srsenb_stdin.py
@@ -42,7 +42,7 @@
 # PUBLIC (test API included)
 #############################
     def set_attenuation(self, db):
-        msg_str = 'cell_gain %d %f' % (self.cell_id, db)
+        msg_str = 'cell_gain %d %f' % (self.cell_id, -db)
         self.dbg('sending stdin msg: "%s"' % msg_str)
         self.enb.process.stdin_write(msg_str + '\n')
 

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Gerrit-Project: osmo-gsm-tester
Gerrit-Branch: master
Gerrit-Change-Id: I7b6ac611a9f711bbdc1570602bfd797a5346ab86
Gerrit-Change-Number: 20641
Gerrit-PatchSet: 1
Gerrit-Owner: srs_andre <andre at softwareradiosystems.com>
Gerrit-MessageType: newchange
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