diff --git a/REAME.md b/REAME.md
new file mode 100644
index 0000000..5090def
--- /dev/null
+++ b/REAME.md
@@ -0,0 +1,23 @@
+# ADSB OUT
+
+
+## dump 测试
+
+dump1090 can be started automatically via an init-script. Otherwise, the init-script does nothing; you must run dump1090 by hand.
+
+You can modify the options used when automatically starting dump1090 by running "dpkg-reconfigure dump1090-mutability" as root, or by editing 
+
+```
+/etc/default/dump1090-mutability 
+
+```
+
+```
+
+sudo apt update
+sudo apt install dump1090-mutability
+
+sudo usermod -a -G plugdev dump1090
+sudo systemctl restart dump1090-mutability
+
+```