From 56486979a87999ab118c6526bbec13134f82b273 Mon Sep 17 00:00:00 2001
From: Neale Pickett <neale@woozle.org>
Date: Sun, 26 Apr 2020 22:50:51 -0600
Subject: [PATCH] CK tool also measures RTT

---
 static/vail.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/static/vail.js b/static/vail.js
index 6b5d836..c46a5a2 100644
--- a/static/vail.js
+++ b/static/vail.js
@@ -328,7 +328,7 @@ class Vail {
     let tx = true
     for (let duration of durations) {
       duration = Number(duration)
-      if (tx) {
+      if (tx && (duration > 0)) {
         this.buzzer.BuzzDuration(false, adjustedTxTime, duration)
         this.addRxDuration(duration)
       }
@@ -397,6 +397,7 @@ class Vail {
       s * 3,
       dah, s, dit, s, dah
     ]
+    this.wsSend(Date.now(), 0) // Get round-trip time
     this.socket.send(JSON.stringify(msg))
   }
 }