diff --git a/README.md b/README.md
index af14a10..6ab7cb1 100644
--- a/README.md
+++ b/README.md
@@ -57,9 +57,12 @@ To view data attached as example:
 ```
 ./rfplot.py -p data/2021-08-04T20_48_35 -c tle/satnogs.tle
 
-./rfplot.py -p data/2021-08-04T20_48_35_000050.bin -c tle/bulk.tle -C 9990
+./rfplot.py -p data/2021-08-04T20_48_35 -c tle/bulk.tle -C 9990
 ```
 
+![pystrf-bin-example](img/pystrf-2021-08-04T20_48_35.png)
+*Example with `data/2021-08-04T20_48_35` files*
+
 Example using SatNOGS observation ID (requires observation uploading h5 artifact):
 
 ```
diff --git a/img/pystrf-2021-08-04T20_48_35.png b/img/pystrf-2021-08-04T20_48_35.png
new file mode 100644
index 0000000..c237695
Binary files /dev/null and b/img/pystrf-2021-08-04T20_48_35.png differ