static/index.html

@@ -189,6 +189,16 @@
 				<div class="column">
 					<div class="box">
 						<h2 class="title" data-i18n="heading.knobs">Knobs</h2>
+						<div class="block">
+							<div class="control">
+								<button id="ck" class="button is-primary">
+									CK
+								</button>
+							</div>
+							<div class="" data-i18n="description.ck">
+								Send <code>CK</code> (check) to the repeater, and play when it comes back.
+							</div>
+						</div>
 						<div class="block">
 							<div class="control">
 								<button id="reset" class="button" data-i18n="label.reset">

static/scripts/repeaters.mjs

@@ -106,6 +106,9 @@ export class Vail {
         // and how many clients are connected
 		if (msg.Duration.length == 0) {
             this.clockOffset = now - msg.Timestamp
+            console.log("them:", msg.Timestamp)
+            console.log("  us:", now)
+            console.log("Clock offset", this.clockOffset)
             this.rx(0, 0, stats)
 			return
 		}

static/scripts/vail.mjs

@@ -54,6 +54,9 @@ class VailClient {
 		for (let e of document.querySelectorAll("button.maximize")) {
 			e.addEventListener("click", e => this.maximize(e))
 		}
+		for (let e of document.querySelectorAll("#ck")) {
+			e.addEventListener("click", e => this.check())
+		}
 		for (let e of document.querySelectorAll("#reset")) {
 			e.addEventListener("click", e => this.reset())
 		}
@@ -62,9 +65,9 @@ class VailClient {
 		this.inputInit("#keyer-mode", e => this.setKeyer(e.target.value))
 		this.inputInit("#keyer-rate", e => {
 			let rate = e.target.value
-			this.ditDuration = Math.round(Minute / rate / 50)
+			this.ditDuration = Minute / rate / 50
 			for (let e of document.querySelectorAll("[data-fill='keyer-ms']")) {
-				e.textContent = this.ditDuration
+				e.textContent = this.ditDuration.toFixed(0)
 			}
 			this.keyer.SetDitDuration(this.ditDuration)
 			this.roboKeyer.SetDitDuration(this.ditDuration)
@@ -416,6 +419,30 @@ class VailClient {
 		console.log(element)
 	}
 
+	/**
+	  * Send "CK" to server, and don't squelch the echo
+	  */
+	 check() {
+		let when = Date.now()
+		let dit = this.ditDuration
+		let dah = dit * 3
+		let s = dit
+		let message = [
+			dah, s, dit, s, dah, s, dit,
+			s * 3,
+			dah, s, dit, s, dah
+		]
+
+		this.repeater.Transmit(when, 0) // Get round-trip time
+		for (let i in message) {
+			let duration = message[i]
+			if (i % 2 == 0) {
+				this.repeater.Transmit(when, duration, false)
+			}
+			when += duration
+		}
+	}
+
 	/** Reset to factory defaults */
 	reset() {
 		localStorage.clear()