diff --git a/application/controllers/Lookup.php b/application/controllers/Lookup.php
index 3b998e32d..7d081bdf6 100644
--- a/application/controllers/Lookup.php
+++ b/application/controllers/Lookup.php
@@ -71,73 +71,67 @@ class Lookup extends CI_Controller {
 	public function scp() {
 		session_write_close();
 		$uppercase_callsign = strtoupper($this->input->post('callsign', TRUE) ?? '');
-
+	
 		// SCP results from logbook
 		$this->load->model('logbook_model');
-
+	
 		$arCalls = array();
-
+	
 		$query = $this->logbook_model->get_callsigns($uppercase_callsign);
-
-		foreach ($query->result() as $row)
-	    {
-	    	if (in_array($row->COL_CALL, $arCalls) == false)
-			{
-					$arCalls[] = str_replace('0', 'Ø', $row->COL_CALL);
-			}
-	    }
-
+	
+		foreach ($query->result() as $row) {
+			$normalized_call = str_replace('0', 'Ø', $row->COL_CALL);
+			$arCalls[$normalized_call] = true;
+		}
+	
 		// SCP results from Club Log master scp db
 		$file = 'updates/clublog_scp.txt';
-
+	
 		if (is_readable($file)) {
 			$lines = file($file, FILE_IGNORE_NEW_LINES);
 			$input = preg_quote($uppercase_callsign, '~');
 			$result = preg_grep('~' . $input . '~', $lines, 0);
-			foreach ($result as &$value) {
-				if (in_array($value, $arCalls) == false)
-				{
-					$arCalls[] = str_replace('0', 'Ø', $value);
-				}
+			foreach ($result as $value) {
+				$normalized_call = str_replace('0', 'Ø', $value);
+				$arCalls[$normalized_call] = true;
 			}
 		} else {
 			$src = 'assets/resources/clublog_scp.txt';
 			if (copy($src, $file)) {
 				$this->scp();
+				return;
 			} else {
 				log_message('error', 'Failed to copy source file ('.$src.') to new location. Check if this path has the right permission: '.$file);
 			}
 		}
-
+	
 		// SCP results from master scp https://www.supercheckpartial.com
 		$file = 'updates/MASTER.SCP';
-
+	
 		if (is_readable($file)) {
 			$lines = file($file, FILE_IGNORE_NEW_LINES);
 			$input = preg_quote($uppercase_callsign, '~');
 			$result = preg_grep('~' . $input . '~', $lines, 0);
-			foreach ($result as &$value) {
-				if (in_array($value, $arCalls) == false)
-				{
-					$arCalls[] = str_replace('0', 'Ø', $value);
-				}
+			foreach ($result as $value) {
+				$normalized_call = str_replace('0', 'Ø', $value);
+				$arCalls[$normalized_call] = true;
 			}
 		} else {
 			$src = 'assets/resources/MASTER.SCP';
 			if (copy($src, $file)) {
 				$this->scp();
+				return;
 			} else {
 				log_message('error', 'Failed to copy source file ('.$src.') to new location. Check if this path has the right permission: '.$file);
 			}
 		}
-
-		sort($arCalls);
-
-		foreach ($arCalls as $strCall)
-		{
+	
+		// Sort and print unique calls
+		ksort($arCalls);
+	
+		foreach (array_keys($arCalls) as $strCall) {
 			echo " " . $strCall . " ";
 		}
-
 	}
 
 	public function dok($call) {
diff --git a/assets/js/sections/qso.js b/assets/js/sections/qso.js
index bc563ef48..b29fb81aa 100644
--- a/assets/js/sections/qso.js
+++ b/assets/js/sections/qso.js
@@ -2,9 +2,11 @@ var favs = {};
 var selected_sat;
 var selected_sat_mode;
 var scps = [];
+let lookupCall = null;
+let preventLookup = false;
 
 // if the dxcc id changes we need to update the state dropdown and clear the county value to avoid wrong data
-$("#dxcc_id").change(function () {
+$("#dxcc_id").on('change', function () {
 	updateStateDropdown('#dxcc_id', '#stateInputLabel', '#location_us_county', '#stationCntyInputQso');
 	$('#stationCntyInputQso').val('');
 	$('#dxcc_id').multiselect('refresh');
@@ -33,7 +35,7 @@ function getUTCDateStamp(el) {
 }
 
 
-$('#stationProfile').change(function () {
+$('#stationProfile').on('change', function () {
 	var stationProfile = $('#stationProfile').val();
 	$.ajax({
 		url: base_url + 'index.php/qso/get_station_power',
@@ -56,22 +58,19 @@ $('.qso_panel .qso_eqsl_qslmsg_update').off('click').on('click', function () {
 	$('#charsLeft').text(" ");
 });
 
-$(document).keyup(function (e) {
-	if (e.charCode === 0) {
-		let fixedcall = $('#callsign').val();
-		$('#callsign').val(fixedcall.replace('Ø', '0'));
-	}
+$(document).on("keydown", function (e) {
 	if (e.key === "Escape") { // escape key maps to keycode `27`
 		reset_fields();
 		resetTimers(qso_manual)
 		$('#callsign').val("");
-		$("#callsign").focus();
+		$("#callsign").trigger("focus");
 	}
 });
 
 // Sanitize some input data
 $('#callsign').on('input', function () {
 	$(this).val($(this).val().replace(/\s/g, ''));
+	$(this).val($(this).val().replace(/0/g, 'Ø'));
 });
 
 $('#locator').on('input', function () {
@@ -93,7 +92,7 @@ function set_timers() {
 		var callsignValue = localStorage.getItem("quicklogCallsign");
 		if (callsignValue !== null && callsignValue !== undefined) {
 			$("#callsign").val(callsignValue);
-			$("#mode").focus();
+			$("#mode").trigger("focus");
 			localStorage.removeItem("quicklogCallsign");
 		}
 	}, 100);
@@ -131,7 +130,7 @@ $("#qso_input").off('submit').on('submit', function (e) {
 					$("#noticer").fadeOut(2000);
 					var triggerEl = document.querySelector('#myTab a[href="#qso"]')
 					bootstrap.Tab.getInstance(triggerEl).show() // Select tab by name
-					$("#callsign").focus();
+					$("#callsign").trigger("focus");
 				} else {
 					$("#noticer").removeClass("");
 					$("#noticer").addClass("alert alert-warning");
@@ -152,7 +151,7 @@ $("#qso_input").off('submit').on('submit', function (e) {
 	return false;
 });
 
-$('#reset_time').click(function () {
+$('#reset_time').on("click", function () {
 	var now = new Date();
 	var localTime = now.getTime();
 	var utc = localTime + (now.getTimezoneOffset() * 60000);
@@ -162,7 +161,7 @@ $('#reset_time').click(function () {
 	});
 });
 
-$('#reset_start_time').click(function () {
+$('#reset_start_time').on("click", function () {
 	var now = new Date();
 	var localTime = now.getTime();
 	var utc = localTime + (now.getTimezoneOffset() * 60000);
@@ -178,7 +177,7 @@ $('#reset_start_time').click(function () {
 	$('#start_date').val(("0" + now.getUTCDate()).slice(-2) + '-' + ("0" + (now.getUTCMonth() + 1)).slice(-2) + '-' + now.getUTCFullYear());
 });
 
-$('#reset_end_time').click(function () {
+$('#reset_end_time').on("click", function () {
 	var now = new Date();
 	var localTime = now.getTime();
 	var utc = localTime + (now.getTimezoneOffset() * 60000);
@@ -188,7 +187,7 @@ $('#reset_end_time').click(function () {
 	});
 });
 
-$('#fav_add').click(function (event) {
+$('#fav_add').on("click", function (event) {
 	save_fav();
 });
 
@@ -204,7 +203,7 @@ $(document).on("click", "#fav_recall", function (event) {
 	$('#frequency_rx').val(favs[this.innerText].frequency_rx);
 	$('#frequency').val(favs[this.innerText].frequency);
 	$('#selectPropagation').val(favs[this.innerText].prop_mode);
-	$('#mode').val(favs[this.innerText].mode).change();
+	$('#mode').val(favs[this.innerText].mode).on("change");
 });
 
 
@@ -300,7 +299,7 @@ bc.onmessage = function (ev) {
 	}
 } /* receive */
 
-$("#sat_name").change(function () {
+$("#sat_name").on('change', function () {
 	var sat = $("#sat_name").val();
 	if (sat == "") {
 		$("#sat_mode").val("");
@@ -308,7 +307,7 @@ $("#sat_name").change(function () {
 	}
 });
 
-$('#stateDropdown').change(function () {
+$('#stateDropdown').on('change', function () {
 	var state = $("#stateDropdown option:selected").text();
 	if (state != "") {
 		$("#stationCntyInputQso").prop('disabled', false);
@@ -466,11 +465,22 @@ function changebadge(entityname) {
 	}
 }
 
-$('#btn_reset').click(function () {
+$('#btn_reset').on("click", function () {
+	preventLookup = true;
+
+	if (lookupCall) {
+		lookupCall.abort();
+	}
+
 	reset_fields();
+
+	// make sure the focusout event is finished before we allow a new lookup
+	setTimeout(() => {
+		preventLookup = false;
+	}, 100);
 });
 
-$('#btn_fullreset').click(function () {
+$('#btn_fullreset').on("click", function () {
 	reset_to_default();
 });
 
@@ -566,8 +576,8 @@ function reset_fields() {
 	resetTimers(qso_manual);
 }
 
-$("#callsign").focusout(function () {
-	if ($(this).val().length >= 3) {
+$("#callsign").on("focusout", function () {
+	if ($(this).val().length >= 3 && preventLookup == false) {
 
 		// Temp store the callsign
 		var temp_callsign = $(this).val();
@@ -589,7 +599,7 @@ $("#callsign").focusout(function () {
 		find_callsign = find_callsign.replace('Ø', '0');
 
 		// Replace / in a callsign with - to stop urls breaking
-		$.getJSON(base_url + 'index.php/logbook/json/' + find_callsign + '/' + json_band + '/' + json_mode + '/' + $('#stationProfile').val() + '/' + $('#start_date').val(), async function (result) {
+		lookupCall = $.getJSON(base_url + 'index.php/logbook/json/' + find_callsign + '/' + json_band + '/' + json_mode + '/' + $('#stationProfile').val() + '/' + $('#start_date').val(), async function (result) {
 
 			// Make sure the typed callsign and json result match
 			if ($('#callsign').val = result.callsign) {
@@ -823,7 +833,7 @@ $("#callsign").focusout(function () {
 })
 
 /* time input shortcut */
-$('#start_time').change(function () {
+$('#start_time').on('change', function () {
 	var raw_time = $(this).val();
 	if (raw_time.match(/^\d\[0-6]d$/)) {
 		raw_time = "0" + raw_time;
@@ -834,7 +844,7 @@ $('#start_time').change(function () {
 	}
 });
 
-$('#end_time').change(function () {
+$('#end_time').on('change', function () {
 	var raw_time = $(this).val();
 	if (raw_time.match(/^\d\[0-6]d$/)) {
 		raw_time = "0" + raw_time;
@@ -846,7 +856,7 @@ $('#end_time').change(function () {
 });
 
 /* date input shortcut */
-$('#start_date').change(function () {
+$('#start_date').on('change', function () {
 	raw_date = $(this).val();
 	if (raw_date.match(/^[12]\d{3}[01]\d[0123]\d$/)) {
 		raw_date = raw_date.substring(0, 4) + "-" + raw_date.substring(4, 6) + "-" + raw_date.substring(6, 8);
@@ -855,7 +865,7 @@ $('#start_date').change(function () {
 });
 
 /* on mode change */
-$('.mode').change(function () {
+$('.mode').on('change', function () {
 	if ($('#radio').val() == 0) {
 		$.get(base_url + 'index.php/qso/band_to_freq/' + $('#band').val() + '/' + $('.mode').val(), function (result) {
 			$('#frequency').val(result);
@@ -866,7 +876,7 @@ $('.mode').change(function () {
 
 /* Calculate Frequency */
 /* on band change */
-$('#band').change(function () {
+$('#band').on('change', function () {
 	if ($('#radio').val() == 0) {
 		$.get(base_url + 'index.php/qso/band_to_freq/' + $(this).val() + '/' + $('.mode').val(), function (result) {
 			$('#frequency').val(result);
@@ -880,7 +890,7 @@ $('#band').change(function () {
 });
 
 /* On Key up Calculate Bearing and Distance */
-$("#locator").keyup(function () {
+$("#locator").on("input focus", function () {
 	if ($(this).val()) {
 		var qra_input = $(this).val();
 
@@ -995,7 +1005,7 @@ $("#locator").keyup(function () {
 });
 
 // Change report based on mode
-$('.mode').change(function () {
+$('.mode').on('change', function () {
 	setRst($('.mode').val());
 });
 
@@ -1040,16 +1050,15 @@ $('#dxcc_id').on('change', function () {
 
 //Spacebar moves to the name field when you're entering a callsign
 //Similar to contesting ux, good for pileups.
-$("#callsign").on("keypress", function (e) {
+$("#callsign").on("keydown", function (e) {
 	if (e.which == 32) {
-		$("#name").focus();
-		return false; //Eliminate space char
+		$("#name").trigger("focus");
+		e.preventDefault(); //Eliminate space char
 	}
 });
 
 
-// On Key up check and suggest callsigns
-$("#callsign").keyup(function () {
+$("#callsign").on("input focus", function () {
 	var ccall = $(this).val();
 	if ($(this).val().length >= 3) {
 		$('.callsign-suggest').show();
@@ -1064,12 +1073,12 @@ $("#callsign").keyup(function () {
 				success: function (result) {
 					$('.callsign-suggestions').text(result);
 					scps = result.split(" ");
-					highlight(ccall.toUpperCase());
+					highlightSCP(ccall.toUpperCase());
 				}
 			});
 		} else {
 			$('.callsign-suggestions').text(scps.filter((call) => call.includes($(this).val().toUpperCase())).join(' '));
-			highlight(ccall.toUpperCase());
+			highlightSCP(ccall.toUpperCase());
 		}
 	} else {
 		$('.callsign-suggest').hide();
@@ -1082,7 +1091,7 @@ RegExp.escape = function (text) {
 }
 
 
-function highlight(term, base) {
+function highlightSCP(term, base) {
 	if (!term) return;
 	base = base || document.body;
 	var re = new RegExp("(" + RegExp.escape(term) + ")", "gi");
@@ -1217,7 +1226,7 @@ $(document).ready(function () {
 	};
 
 	// Callsign always has focus on load
-	$("#callsign").focus();
+	$("#callsign").trigger("focus");
 
 	// reset the timers on page load
 	resetTimers(qso_manual);