diff --git a/README.md b/README.md
index 379d90b..935f6ab 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,17 @@
 
 # LoRa Modulation Jam
+
+Programmatically send packets between two stations across a set of LoRa radio configurations.
+
+Given nodes at two different locations with computers attached via USB, run one of these commands within a few minutes of each other on each computer:
+
+`python modjam.py run --this-station=A` and `python modjam.py run --this-station=B`
+
+Each station will iterate through the full permutation of LoRa radio settings.
+
+Use the parameters to change the set of settings used:
+
+This will run for all BWs, but only test SF 7 and 11, coding rate 5, and power level 1.
+```
+python3 ./modjam.py run --this-station=A --spread-factor=7 --spread-factor=11 --coding-rate=5 --power=1
+```
diff --git a/modjam.py b/modjam.py
index edefc39..a708eb9 100644
--- a/modjam.py
+++ b/modjam.py
@@ -162,10 +162,10 @@ def log (**parts):
     if not logfile:
         raise Exception('No logfile')
     ts = time()
-    msg = '\t'.join(map(lambda x: str(x), parts))
+    msg = '\t'.join(map(lambda x: str(x), parts.values()))
     line = f'{ts}\t{msg}\n';
     print(line)
-    logfile.write(json.dumps({**parts, 'ts': ts}))
+    logfile.write(json.dumps({**parts, 'ts': ts}) + '\n')
 
 
 def configureRadio (conf: RadioConfig):
@@ -307,9 +307,11 @@ async def runCues (cuesheet: Cuesheet, run_config: RunConfig):
         scenario_prefix = f'{scenario['freq']},{scenario['bw']},{scenario['sf']},{scenario['cr']},{scenario['pow']}'
         configureRadio(scenario)
         reconnectRadio()
+        print('waiting for start')
         while t < scenario['start']:
             t = time() - start
             sleep(0.1)
+        print('starting scenario')
 
         while t < scenario['end']:
             t = time() - start
@@ -321,6 +323,7 @@ async def runCues (cuesheet: Cuesheet, run_config: RunConfig):
                 # Wait until the next scenario and just listen
                 wait_for_s = max(scenario['end'] - t,0.5)
                 await asyncio.sleep(wait_for_s)
+        print('scenario complete')
 
 
 def sleepUntilStart (config):
@@ -334,16 +337,15 @@ def sleepUntilStart (config):
 
 def main ():
     config, run_config = prepareConfig()
+    global interface
+    interface = SerialInterface(run_config['port'], noNodes=True) # Confirm radio is connectable
     cuesheet = buildCueSheet(config) # Do this before sleeping so the timing is displayed
 
+
     sleepUntilStart(config)
 
     pub.subscribe(onStatus, 'meshtastic.log')
     pub.subscribe(onReceiveText, 'meshtastic.receive.text')
-
-    global interface
-    interface = SerialInterface(run_config['port'], noNodes=True)
-
     global logfile
     station = run_config['this_station']
     logfile = open('./' + station + '-' + str(time()) + '.jsonl', 'a')