diff --git a/swagger/sdrangel/examples/nfm_test.py b/swagger/sdrangel/examples/nfm_test.py
new file mode 100644
index 000000000..12fb8a8f8
--- /dev/null
+++ b/swagger/sdrangel/examples/nfm_test.py
@@ -0,0 +1,112 @@
+#!/usr/bin/env python
+
+import requests, json, traceback, sys
+from optparse import OptionParser
+
+base_url = "http://127.0.0.1:8091/sdrangel"
+
+requests_methods = {
+    "GET": requests.get,
+    "PATCH": requests.patch,
+    "POST": requests.post,
+    "PUT": requests.put,
+    "DELETE": requests.delete
+}
+
+# ======================================================================
+def getInputOptions():
+
+    parser = OptionParser(usage="usage: %%prog [-t]\n")
+    parser.add_option("-a", "--address", dest="address", help="address and port", metavar="ADDRESS", type="string") 
+
+    (options, args) = parser.parse_args()
+    
+    if (options.address == None):
+        options.address = "127.0.0.1:8091"
+    
+    return options
+
+# ======================================================================
+def printResponse(response):
+    content_type = response.headers.get("Content-Type", None)
+    if content_type is not None:
+        if "application/json" in content_type:
+            print(json.dumps(response.json(), indent=4, sort_keys=True))
+        elif "text/plain" in content_type:
+            print(response.text)
+
+# ======================================================================
+def callAPI(url, method, params, json, text):
+    request_method = requests_methods.get(method, None)
+    if request_method is not None:
+        r = request_method(url=base_url+url, params=params, json=json)
+        if r.status_code == 200:
+            print(text + " succeeded")
+            printResponse(r)
+            return r.json() # all 200 yield application/json response
+        else:
+            print(text + " faileded")
+            printResponse(r)
+            return None
+
+# ======================================================================
+def main():
+    try:
+        options = getInputOptions()
+        
+        global base_url
+        base_url = "http://%s/sdrangel" % options.address
+        
+        settings = callAPI("/deviceset/0/channel", "POST", None, {"channelType": "NFMDemod", "tx": 0}, "Create NFM demod")
+        if settings is None:
+            exit(-1)
+
+        settings["NFMDemodSettings"]["inputFrequencyOffset"] = 12500
+        settings["NFMDemodSettings"]["afBandwidth"] = 5000
+        
+        r = callAPI("/deviceset/0/channel/0/settings", "PATCH", None, settings, "Change NFM demod")
+        if r is None:
+            exut(-1)
+            
+        r = callAPI("/devicesets", "POST", {"tx": 1}, None, "Add Tx devuce set")
+        if r is None:
+            exut(-1)
+            
+        settings = callAPI("/deviceset/1/channel", "POST", None, {"channelType": "NFMMod", "tx": 1}, "Create NFM mod")
+        if settings is None:
+            exit(-1)
+        
+        settings["NFMModSettings"]["inputFrequencyOffset"] = 12500
+        settings["NFMModSettings"]["cwKeyer"]["text"] = "VVV DE F4EXB  "
+        settings["NFMModSettings"]["cwKeyer"]["loop"] = 1
+        settings["NFMModSettings"]["cwKeyer"]["mode"] = 1 # text
+        
+        r = callAPI("/deviceset/1/channel/0/settings", "PATCH", None, settings, "Change NFM mod")
+        if r is None:
+            exit(-1)
+        
+#         r = requests.post(url=base_url+"/deviceset/0/channel", json={"channelType": "NFMDemod", "tx": 0})
+#         if r.status_code == 200:
+#             print("Created NFM demod")
+#             printResponse(r)
+#             settings = r.json()
+#             settings["NFMDemodSettings"]["inputFrequencyOffset"] = 12500
+#             settings["NFMDemodSettings"]["afBandwidth"] = 5000
+#             r0 = requests.patch(url=base_url+"/deviceset/0/channel/0/settings", json=settings)
+#             if r0.status_code == 200:
+#                 print("Changed NFM demod")
+#                 printResponse(r0)
+#             else:
+#                 print("Error changing NFM demod. HTTP: %d" % r0.status_code)
+#                 printResponse(r0)
+#         else:
+#             print("Error creating NFM demod. (HTTP: %d)" % r.status_codes)
+#             printResponse(r)
+    except Exception, msg:
+        tb = traceback.format_exc()
+        print >> sys.stderr, tb
+
+
+if __name__ == "__main__":
+    main()
+