diff --git a/lib/include/srsran/common/enb_events.h b/lib/include/srsran/common/enb_events.h
index e94aaab74..0361c87c2 100644
--- a/lib/include/srsran/common/enb_events.h
+++ b/lib/include/srsran/common/enb_events.h
@@ -81,12 +81,15 @@ class event_logger
   event_logger() = default;
 
 public:
+  /// ASN1 output printing format.
+  enum class asn1_output_format { text, octets };
+
   /// Returns the instance of the event logger.
   static event_logger_interface& get();
 
   /// Uses the specified log channel for event logging.
   /// NOTE: This method is not thread safe.
-  static void configure(srslog::log_channel& c);
+  static void configure(srslog::log_channel& c, asn1_output_format asn1_format);
 
 private:
   static std::unique_ptr<event_logger_interface> pimpl;
diff --git a/lib/src/common/enb_events.cc b/lib/src/common/enb_events.cc
index 51a165d8a..9892ce123 100644
--- a/lib/src/common/enb_events.cc
+++ b/lib/src/common/enb_events.cc
@@ -76,7 +76,6 @@ DECLARE_METRIC("rnti", metric_rnti, uint16_t, "");
 /// ASN1 message metrics.
 DECLARE_METRIC("asn1_length", metric_asn1_length, uint32_t, "");
 DECLARE_METRIC("asn1_message", metric_asn1_message, std::string, "");
-DECLARE_METRIC("asn1_message_txt", metric_asn1_message_txt, std::string, ""); //: TODO:
 
 /// Context for sector start/stop.
 DECLARE_METRIC("pci", metric_pci, uint32_t, "");
@@ -94,7 +93,6 @@ DECLARE_METRIC_SET("event_data",
                    metric_rnti,
                    metric_asn1_length,
                    metric_asn1_message,
-                   metric_asn1_message_txt,
                    metric_asn1_type,
                    metric_additional);
 using rrc_event_t = srslog::
@@ -158,7 +156,9 @@ using rlf_detected_t = srslog::build_context_type<metric_type_tag,
 class logging_event_logger : public event_logger_interface
 {
 public:
-  explicit logging_event_logger(srslog::log_channel& c) : event_channel(c) {}
+  logging_event_logger(srslog::log_channel& c, event_logger::asn1_output_format asn1_format) :
+    event_channel(c), asn1_format(asn1_format)
+  {}
 
   void log_rrc_event(uint32_t           enb_cc_idx,
                      const std::string& asn1_oct_str,
@@ -169,14 +169,15 @@ public:
   {
     rrc_event_t ctx("");
 
+    const std::string& asn1 = (asn1_format == event_logger::asn1_output_format::octets) ? asn1_oct_str : asn1_txt_str;
+
     ctx.write<metric_type_tag>("event");
     ctx.write<metric_timestamp_tag>(get_time_stamp());
     ctx.write<metric_sector_id>(enb_cc_idx);
     ctx.write<metric_event_name>("rrc_log");
     ctx.get<mset_rrc_event>().write<metric_rnti>(rnti);
-    ctx.get<mset_rrc_event>().write<metric_asn1_length>(asn1_oct_str.size());
-    ctx.get<mset_rrc_event>().write<metric_asn1_message>(asn1_oct_str);
-    ctx.get<mset_rrc_event>().write<metric_asn1_message_txt>(asn1_txt_str);
+    ctx.get<mset_rrc_event>().write<metric_asn1_length>(asn1.size());
+    ctx.get<mset_rrc_event>().write<metric_asn1_message>(asn1);
     ctx.get<mset_rrc_event>().write<metric_asn1_type>(type);
     ctx.get<mset_rrc_event>().write<metric_additional>(additional_info);
     event_channel(ctx);
@@ -245,12 +246,14 @@ public:
   {
     meas_report_event_t ctx("");
 
+    const std::string& asn1 = (asn1_format == event_logger::asn1_output_format::octets) ? asn1_oct_str : asn1_txt_str;
+
     ctx.write<metric_type_tag>("event");
     ctx.write<metric_timestamp_tag>(get_time_stamp());
     ctx.write<metric_sector_id>(enb_cc_idx);
     ctx.write<metric_event_name>("measurement_report");
-    ctx.get<mset_meas_report_event>().write<metric_asn1_length>(asn1_oct_str.size());
-    ctx.get<mset_meas_report_event>().write<metric_asn1_message>(asn1_oct_str);
+    ctx.get<mset_meas_report_event>().write<metric_asn1_length>(asn1.size());
+    ctx.get<mset_meas_report_event>().write<metric_asn1_message>(asn1);
     ctx.get<mset_meas_report_event>().write<metric_rnti>(rnti);
     event_channel(ctx);
   }
@@ -262,12 +265,14 @@ public:
   {
     rlf_report_event_t ctx("");
 
+    const std::string& asn1 = (asn1_format == event_logger::asn1_output_format::octets) ? asn1_oct_str : asn1_txt_str;
+
     ctx.write<metric_type_tag>("event");
     ctx.write<metric_timestamp_tag>(get_time_stamp());
     ctx.write<metric_sector_id>(enb_cc_idx);
     ctx.write<metric_event_name>("rlf_report");
-    ctx.get<mset_rlf_report_event>().write<metric_asn1_length>(asn1_oct_str.size());
-    ctx.get<mset_rlf_report_event>().write<metric_asn1_message>(asn1_oct_str);
+    ctx.get<mset_rlf_report_event>().write<metric_asn1_length>(asn1.size());
+    ctx.get<mset_rlf_report_event>().write<metric_asn1_message>(asn1);
     ctx.get<mset_rlf_report_event>().write<metric_rnti>(rnti);
     event_channel(ctx);
   }
@@ -318,7 +323,8 @@ public:
   }
 
 private:
-  srslog::log_channel& event_channel;
+  srslog::log_channel&             event_channel;
+  event_logger::asn1_output_format asn1_format;
 };
 
 } // namespace
@@ -330,7 +336,7 @@ event_logger_interface& event_logger::get()
   return *pimpl;
 }
 
-void event_logger::configure(srslog::log_channel& c)
+void event_logger::configure(srslog::log_channel& c, asn1_output_format asn1_format)
 {
-  pimpl = std::unique_ptr<logging_event_logger>(new logging_event_logger(c));
+  pimpl = std::unique_ptr<logging_event_logger>(new logging_event_logger(c, asn1_format));
 }
diff --git a/srsenb/enb.conf.example b/srsenb/enb.conf.example
index eeb99daf9..45aaaff21 100644
--- a/srsenb/enb.conf.example
+++ b/srsenb/enb.conf.example
@@ -325,7 +325,8 @@ enable = false
 # metrics_csv_filename: File path to use for CSV metrics.
 # report_json_enable:   Write eNB report to JSON file (default disabled)
 # report_json_filename: Report JSON filename (default /tmp/enb_report.json)
-# alarms_log_enable:    Enable Alarms logging (default diabled)
+# report_json_asn1_oct: Prints ASN1 messages encoded as an octet string instead of plain text in the JSON report file
+# alarms_log_enable:    Enable Alarms logging (default disabled)
 # alarms_filename:      Alarms logging filename (default /tmp/alarms.log)
 # tracing_enable:       Write source code tracing information to a file.
 # tracing_filename:     File path to use for tracing information.
@@ -357,6 +358,7 @@ enable = false
 #metrics_csv_filename = /tmp/enb_metrics.csv
 #report_json_enable   = true
 #report_json_filename = /tmp/enb_report.json
+#report_json_asn1_oct = false
 #alarms_log_enable    = true
 #alarms_filename      = /tmp/enb_alarms.log
 #tracing_enable       = true
diff --git a/srsenb/hdr/enb.h b/srsenb/hdr/enb.h
index a04a72c43..57c400aee 100644
--- a/srsenb/hdr/enb.h
+++ b/srsenb/hdr/enb.h
@@ -85,6 +85,7 @@ struct general_args_t {
   std::string metrics_csv_filename;
   bool        report_json_enable;
   std::string report_json_filename;
+  bool        report_json_asn1_oct;
   bool        alarms_log_enable;
   std::string alarms_filename;
   bool        print_buffer_state;
diff --git a/srsenb/src/main.cc b/srsenb/src/main.cc
index a3f548623..79f036a3c 100644
--- a/srsenb/src/main.cc
+++ b/srsenb/src/main.cc
@@ -222,6 +222,7 @@ void parse_args(all_args_t* args, int argc, char* argv[])
     ("expert.lte_sample_rates", bpo::value<bool>(&use_standard_lte_rates)->default_value(false), "Whether to use default LTE sample rates instead of shorter variants.")
     ("expert.report_json_enable",  bpo::value<bool>(&args->general.report_json_enable)->default_value(false), "Write eNB report to JSON file (default disabled)")
     ("expert.report_json_filename", bpo::value<string>(&args->general.report_json_filename)->default_value("/tmp/enb_report.json"), "Report JSON filename (default /tmp/enb_report.json)")
+    ("expert.report_json_asn1_oct",  bpo::value<bool>(&args->general.report_json_asn1_oct)->default_value(false), "Prints ASN1 messages encoded as an octet string instead of plain text in the JSON report file")
     ("expert.alarms_log_enable",  bpo::value<bool>(&args->general.alarms_log_enable)->default_value(false), "Enable Alarms logging (default diabled)")
     ("expert.alarms_filename", bpo::value<string>(&args->general.alarms_filename)->default_value("/tmp/enb_alarms.log"), "Alarms logging filename (default /tmp/alarms.log)")
     ("expert.tracing_enable",  bpo::value<bool>(&args->general.tracing_enable)->default_value(false), "Events tracing")
@@ -578,7 +579,10 @@ int main(int argc, char* argv[])
 
   // Configure the event logger just before starting the eNB class.
   if (args.general.report_json_enable) {
-    event_logger::configure(json_channel);
+    event_logger::asn1_output_format format = (args.general.report_json_asn1_oct)
+                                                  ? event_logger::asn1_output_format::octets
+                                                  : event_logger::asn1_output_format::text;
+    event_logger::configure(json_channel, format);
   }
 
   if (mlockall((uint32_t)MCL_CURRENT | (uint32_t)MCL_FUTURE) == -1) {