diff --git a/bacnet-stack/demo/handler/h_arf.c b/bacnet-stack/demo/handler/h_arf.c
index 8ef2a2b2..72ac22a6 100644
--- a/bacnet-stack/demo/handler/h_arf.c
+++ b/bacnet-stack/demo/handler/h_arf.c
@@ -136,6 +136,11 @@ void handler_atomic_read_file(uint8_t * service_request,
             if (data.type.stream.requestedOctetCount <
                 octetstring_capacity(&data.fileData)) {
                 if (bacfile_read_data(&data)) {
+#if PRINT_ENABLED
+                    fprintf(stderr, "ARF: Stream offset %d, %d octets.\n",
+                        data.type.stream.fileStartPosition,
+                        data.type.stream.requestedOctetCount);
+#endif
                     len =
                         arf_ack_encode_apdu(&Handler_Transmit_Buffer
                         [pdu_len], service_data->invoke_id, &data);
@@ -150,7 +155,9 @@ void handler_atomic_read_file(uint8_t * service_request,
                     service_data->invoke_id,
                     ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
 #if PRINT_ENABLED
-                fprintf(stderr, "Too Big To Send. Sending Abort!\n");
+                fprintf(stderr, "Too Big To Send (%d >= %d). Sending Abort!\n",
+                    data.type.stream.requestedOctetCount,
+                    octetstring_capacity(&data.fileData));
 #endif
             }
         } else {