diff --git a/internal/xbee/rxframe.go b/internal/xbee/rxframe.go
index 5e9b800..2ca81f0 100644
--- a/internal/xbee/rxframe.go
+++ b/internal/xbee/rxframe.go
@@ -28,7 +28,12 @@ func ParseRxFrame(data []byte) (*RxFrame, error) {
 	// RX options
 	opt := data[11]
 	// todo: use this
-	fmt.Print(opt)
+	if (opt & 0x1) == 1 {
+		rx.ACK = true
+	}
+	if (opt & 0x2) == 1 {
+		rx.BCast = true
+	}
 
 	return rx, nil
 }
diff --git a/internal/xbee/rxframe_test.go b/internal/xbee/rxframe_test.go
new file mode 100644
index 0000000..39c32d5
--- /dev/null
+++ b/internal/xbee/rxframe_test.go
@@ -0,0 +1,47 @@
+package xbee
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestParseRxFrame(t *testing.T) {
+	type args struct {
+		data []byte
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    *RxFrame
+		wantErr bool
+	}{
+		// TODO: Add test cases.
+		{
+			name: "64-bit unicast",
+			args: args{
+				// This was taken from the xbee 900hp data sheet, pg 154.
+				// the bolded "frame" there has an error and doesn't include the last two bytes.
+				data: []byte{0x90, 0x00, 0x13, 0xA2, 0x00, 0x41, 0xAE, 0xB5, 0x4E, 0xFF, 0xFE, 0xC1, 0x54, 0x78, 0x44, 0x61, 0x74, 0x61},
+			},
+			want: &RxFrame{
+				Source:  0x0013A20041AEB54E,
+				ACK:     true,
+				BCast:   false,
+				Payload: []byte{0x54, 0x78, 0x44, 0x61, 0x74, 0x61},
+			},
+			// Todo: use XCTU to generate more example packets.
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := ParseRxFrame(tt.args.data)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("ParseRxFrame() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("ParseRxFrame() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}