From dcbfab3caa7573f7eb422ba49a6c45db8e3c40ee Mon Sep 17 00:00:00 2001
From: Jan David Mol <mol@astron.nl>
Date: Thu, 22 Feb 2024 15:44:49 +0100
Subject: [PATCH] allow reading HBA_time_beam for LBA observations

---
 .../tangostationcontrol/devices/observation_field.py          | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tangostationcontrol/tangostationcontrol/devices/observation_field.py b/tangostationcontrol/tangostationcontrol/devices/observation_field.py
index 5a1452033..c0ef919eb 100644
--- a/tangostationcontrol/tangostationcontrol/devices/observation_field.py
+++ b/tangostationcontrol/tangostationcontrol/devices/observation_field.py
@@ -220,9 +220,9 @@ class ObservationField(LOFARDevice):
     def HBA_tile_beam_R(self):
         try:
             if self._observation_field_settings.HBA.tile_beam is None:
-                return None
+                return []
         except AttributeError:
-            return None
+            return []
 
         pointing_direction = self._observation_field_settings.HBA.tile_beam
         return [
-- 
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