diff --git a/src/config.c b/src/config.c
index f3edc15..b1b0829 100644
--- a/src/config.c
+++ b/src/config.c
@@ -5775,8 +5775,9 @@ static int beacon_options(char *cmd, struct beacon_s *b, int line, struct audio_
 	  else if (strcasecmp(keyword, "POWER") == 0) {
 	    b->power = atoi(value);
 	  }
-	  else if (strcasecmp(keyword, "HEIGHT") == 0) {
+	  else if (strcasecmp(keyword, "HEIGHT") == 0) {	// This is in feet.
 	    b->height = atoi(value);
+	    // TODO: ability to add units suffix, e.g.  10m
 	  }
 	  else if (strcasecmp(keyword, "GAIN") == 0) {
 	    b->gain = atoi(value);
diff --git a/src/direwolf.c b/src/direwolf.c
index 1a92968..8735193 100644
--- a/src/direwolf.c
+++ b/src/direwolf.c
@@ -300,8 +300,8 @@ int main (int argc, char *argv[])
 
 	text_color_init(t_opt);
 	text_color_set(DW_COLOR_INFO);
-	//dw_printf ("Dire Wolf version %d.%d (%s) Beta Test 4\n", MAJOR_VERSION, MINOR_VERSION, __DATE__);
-	dw_printf ("Dire Wolf DEVELOPMENT version %d.%d %s (%s)\n", MAJOR_VERSION, MINOR_VERSION, "G", __DATE__);
+	dw_printf ("Dire Wolf version %d.%d (%s) BETA TEST 4\n", MAJOR_VERSION, MINOR_VERSION, __DATE__);
+	//dw_printf ("Dire Wolf DEVELOPMENT version %d.%d %s (%s)\n", MAJOR_VERSION, MINOR_VERSION, "G", __DATE__);
 	//dw_printf ("Dire Wolf version %d.%d\n", MAJOR_VERSION, MINOR_VERSION);
 
 
@@ -387,7 +387,7 @@ int main (int argc, char *argv[])
 	      dw_printf ("\n");
 	      dw_printf ("Dire Wolf requires only privileges available to ordinary users.\n");
 	      dw_printf ("Running this as root is an unnecessary security risk.\n");
-	      SLEEP_SEC(1);
+	      //SLEEP_SEC(1);
 	    }
 	}
 #endif
diff --git a/src/igate.c b/src/igate.c
index 11f2896..d77d78c 100644
--- a/src/igate.c
+++ b/src/igate.c
@@ -1749,7 +1749,6 @@ static void * satgate_delay_thread (void *arg)
  *
  *--------------------------------------------------------------------*/
 
-#warning -  clean up
 
 // It is unforunate that the : data type indicator (DTI) was overloaded with
 // so many different meanings.  Simply looking at the DTI is not adequate for
@@ -1825,9 +1824,6 @@ static void maybe_xmit_packet_from_igate (char *message, int to_chan)
 	    *gt = '\0';
 	}
 
-// FIXME NO!
-	///////ax25_get_addr_with_ssid (pp3, AX25_SOURCE, src);
-
 /*
  * Drop if path contains:
  *	NOGATE or RFONLY - means IGate should not pass them.
@@ -2472,24 +2468,6 @@ void ig_to_tx_remember (packet_t pp, int chan, int bydigi)
 }
 
 
-#warning remove
-
-static int is_message_overload (char *infop)
-{
-	if (*infop != ':') return (0);
-	if (strlen(infop) < 16) return (0);
-	if (strncmp(infop+10, ":PARM.", 6) == 0) return (1);
-	if (strncmp(infop+10, ":UNIT.", 6) == 0) return (1);
-	if (strncmp(infop+10, ":EQNS.", 6) == 0) return (1);
-	if (strncmp(infop+10, ":BITS.", 6) == 0) return (1);
-	if (strncmp(infop+1, "BLN", 3) == 0) return (1);
-	if (strncmp(infop+1, "NWS", 3) == 0) return (1);
-	if (strncmp(infop+1, "SKY", 3) == 0) return (1);
-	if (strncmp(infop+1, "CWA", 3) == 0) return (1);
-	if (strncmp(infop+1, "BOM", 3) == 0) return (1);
-	return (0);
-}
-
 
 static int ig_to_tx_allow (packet_t pp, int chan)
 {
diff --git a/src/log.c b/src/log.c
index c8b2f82..d7ef544 100644
--- a/src/log.c
+++ b/src/log.c
@@ -224,7 +224,7 @@ void log_write (int chan, decode_aprs_t *A, packet_t pp, alevel_t alevel, retry_
 
 	now = time(NULL);			// Get current time.
 	(void)gmtime_r (&now, &tm);	
-
+// FIXME:  https://github.com/wb2osz/direwolf/issues/473
 
 	if (g_daily_names) {
 
diff --git a/src/pfilter.c b/src/pfilter.c
index b7ad63e..35767a6 100644
--- a/src/pfilter.c
+++ b/src/pfilter.c
@@ -1303,6 +1303,11 @@ static int filt_s (pfstate_t *pf)
  *		what they are for other digipeaters.
  *		I think the best solution is to simply ignore the hop count.
  *
+ * Release 1.7:	I got overly ambitious and now realize this is just giving people too much
+ *		"rope to hang themselves," drop messages unexpectedly, and accidentally break messaging.
+ *		Change documentation to mention only the time limit.
+ *		The other functionality will be undocumented and maybe disappear over time.
+ *
  *------------------------------------------------------------------------------*/
 
 static int filt_i (pfstate_t *pf)
diff --git a/src/recv.c b/src/recv.c
index 9873bbd..a6b4afb 100644
--- a/src/recv.c
+++ b/src/recv.c
@@ -207,7 +207,7 @@ static void * recv_adev_thread (void *arg)
 	int eof;
 	
 	/* This audio device can have one (mono) or two (stereo) channels. */
-	/* Find number of the first channel. */
+	/* Find number of the first channel and number of channels. */
 
 	int first_chan =  ADEVFIRSTCHAN(a); 
 	int num_chan = save_pa->adev[a].num_channels;
@@ -234,6 +234,8 @@ static void * recv_adev_thread (void *arg)
  	    if (audio_sample >= 256 * 256) 
 	      eof = 1;
 
+	    // Future?  provide more flexible mapping.
+	    // i.e. for each valid channel where audio_source[] is first_chan+c.
 	    multi_modem_process_sample(first_chan + c, audio_sample);
 
 
@@ -262,14 +264,14 @@ static void * recv_adev_thread (void *arg)
 	        aprs_tt_button (first_chan + c, tt);
 	      }
 	    }
-	  }
+	  }  // for c is just 0 or 0 then 1
 
 		/* When a complete frame is accumulated, */
 		/* dlq_rec_frame, is called. */
 
 		/* recv_process, below, drains the queue. */
 
-	}
+	}  // while !eof on audio stream
 
 // What should we do now?
 // Seimply terminate the application?  
diff --git a/systemd/direwolf.service b/systemd/direwolf.service
index d4109a0..c3380fa 100644
--- a/systemd/direwolf.service
+++ b/systemd/direwolf.service
@@ -1,6 +1,7 @@
 [Unit]
 Description=Direwolf Sound Card-based AX.25 TNC
 After=sound.target
+After=network.target
 
 [Service]
 EnvironmentFile=/etc/sysconfig/direwolf
@@ -22,3 +23,5 @@ ReadWritePaths=/var/log/direwolf
 [Install]
 WantedBy=multi-user.target
 DefaultInstance=1
+
+# alternate version:  https://www.f4fxl.org/start-direwolf-at-boot-the-systemd-way/