diff --git a/gpsd/README.md b/gpsd/README.md
index 09258d7d..fae25237 100644
--- a/gpsd/README.md
+++ b/gpsd/README.md
@@ -44,7 +44,7 @@ Set mode to APRS and restart
 
 ./config -a
 
-The telemetry string should end with the three values of lat lon alt after the sixth APRS packet is sent
+The telemetry string should end with the three values of lat lon alt after the sixth APRS packet is sent. Packets will be sent about every 30 seconds
 
 the APRS location will also update automatically.