diff --git a/README.md b/README.md
index 25d0c5713..3fa11acea 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 Wavelog is a self-hosted PHP application that allows you to log your amateur radio contacts anywhere. All you need is a web browser and active internet connection.
 
-Wavelog itself is an enhanced fork of Cloudlog by 2M0SQL.
+Wavelog itself is an enhanced fork of Cloudlog by 4W7EST.
 If you would like to contribute to Wavelog please see the [Contributing](#contributing) section below.
 
 The Core-Dev-Team for Wavelog are (in Alphabetic order of the Call):
diff --git a/application/controllers/Calltester.php b/application/controllers/Calltester.php
index 84afaa8b3..6518e30dc 100644
--- a/application/controllers/Calltester.php
+++ b/application/controllers/Calltester.php
@@ -345,7 +345,7 @@ class Calltester extends CI_Controller {
         );
 
         $testarray[] = array(
-            'Callsign'  => '2M0SQL/P',
+            'Callsign'  => '4W7EST/P',
             'Country'   => 'Scotland',
             'Adif'      => 279,
             'Date'      => $date = date('Ymd', time())
diff --git a/application/controllers/Lotw.php b/application/controllers/Lotw.php
index f94610589..0e17cd11c 100644
--- a/application/controllers/Lotw.php
+++ b/application/controllers/Lotw.php
@@ -11,7 +11,7 @@ class Lotw extends CI_Controller {
 	|
 	|	Note:
 	|	If you plan on using any of the code within this class please credit
-	| 	Wavelog or Peter, 2M0SQL, a lot of hard work went into building the
+	| 	Wavelog or Peter, 4W7EST, a lot of hard work went into building the
 	|	signing of files.
 	|
 	|	Big Thanks to Rodrigo PY2RAF for all the help and information about OpenSSL
diff --git a/application/controllers/Update.php b/application/controllers/Update.php
index 3a99059f4..0d9bcbd93 100644
--- a/application/controllers/Update.php
+++ b/application/controllers/Update.php
@@ -354,7 +354,7 @@ class Update extends CI_Controller {
         $f = fopen('./updates/lotw_users.csv', "r");
         $result = false;
         while ($row = fgetcsv($f)) {
-            if ($row[0] == '2M0SQL/MM') {
+            if ($row[0] == '4W7EST/MM') {
                 $result = $row[0];
                 echo "found";
                 break;
diff --git a/application/language/bulgarian/qso_lang.php b/application/language/bulgarian/qso_lang.php
index 028adf525..375685f8d 100644
--- a/application/language/bulgarian/qso_lang.php
+++ b/application/language/bulgarian/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/bulgarian/station_lang.php b/application/language/bulgarian/station_lang.php
index 0ef70d26e..e7b747d9e 100644
--- a/application/language/bulgarian/station_lang.php
+++ b/application/language/bulgarian/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/chinese_simplified/station_lang.php b/application/language/chinese_simplified/station_lang.php
index 113d092ca..b900cdec9 100644
--- a/application/language/chinese_simplified/station_lang.php
+++ b/application/language/chinese_simplified/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/czech/qso_lang.php b/application/language/czech/qso_lang.php
index cd9075f06..a32da0ab3 100644
--- a/application/language/czech/qso_lang.php
+++ b/application/language/czech/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/czech/station_lang.php b/application/language/czech/station_lang.php
index 0ef70d26e..e7b747d9e 100644
--- a/application/language/czech/station_lang.php
+++ b/application/language/czech/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/dutch/qso_lang.php b/application/language/dutch/qso_lang.php
index 05b2f9d22..de649580c 100644
--- a/application/language/dutch/qso_lang.php
+++ b/application/language/dutch/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/dutch/station_lang.php b/application/language/dutch/station_lang.php
index 0ef70d26e..e7b747d9e 100644
--- a/application/language/dutch/station_lang.php
+++ b/application/language/dutch/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/english/qso_lang.php b/application/language/english/qso_lang.php
index 61d02a6b5..f88a9b7cb 100644
--- a/application/language/english/qso_lang.php
+++ b/application/language/english/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/english/station_lang.php b/application/language/english/station_lang.php
index 441b9a577..cb0fd2810 100644
--- a/application/language/english/station_lang.php
+++ b/application/language/english/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/finnish/qso_lang.php b/application/language/finnish/qso_lang.php
index cb736efe7..cec8f87ef 100644
--- a/application/language/finnish/qso_lang.php
+++ b/application/language/finnish/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/finnish/station_lang.php b/application/language/finnish/station_lang.php
index 0ef70d26e..e7b747d9e 100644
--- a/application/language/finnish/station_lang.php
+++ b/application/language/finnish/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/french/qso_lang.php b/application/language/french/qso_lang.php
index fa5215ef4..0af6ead3f 100644
--- a/application/language/french/qso_lang.php
+++ b/application/language/french/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/french/station_lang.php b/application/language/french/station_lang.php
index b3711a33a..fb085f97f 100644
--- a/application/language/french/station_lang.php
+++ b/application/language/french/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/german/qso_lang.php b/application/language/german/qso_lang.php
index ebdb67ead..d46748abc 100644
--- a/application/language/german/qso_lang.php
+++ b/application/language/german/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Bevor du ein QSO loggst, beachte bitte
 $lang['qso_simplefle_syntax_help_ln2'] = "- Jedes neue QSO sollte in einer neuen Zeile stehen.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- In jeder neuen Zeile schreibst du nur Daten, die sich vom vorherigen QSO geändert haben.";
 $lang['qso_simplefle_syntax_help_ln4'] = "Um zu beginnen, stelle sicher, dass du die Felder auf der linken Seite bereits mit Datum, Stationsrufzeichen/-standort und Rufzeichen des Operators ausgefüllt hast. Die wichtigsten Daten umfassen das Band (oder QRG in MHz, z.B. '7.145'), Mode und Zeit. Nach der Zeit gibst du das erste QSO an, was im wesentlichen das Rufzeichen ist.";
-$lang['qso_simplefle_syntax_help_ln5'] = "Zum Beispiel ein QSO um 21:34 Uhr (UTC) mit 2M0SQL auf 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "Zum Beispiel ein QSO um 21:34 Uhr (UTC) mit 4W7EST auf 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "Wenn du keine RST-Informationen angibst, verwendet die Syntax 59 (599 für Daten). Unser nächstes QSO war nicht auf beiden Seiten 59, also geben wir die Informationen zuerst mit gesendeter RST an. Es war 2 Minuten später als das erste QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "Das erste QSO war um 21:34 Uhr, und das zweite 2 Minuten später um 21:36 Uhr. Wir schreiben '6' für die geänderte Minute, da dies die einzige geänderte Information ist. Die Eingaben zum Band und Mode haben sich nicht geändert, daher entfallen diese Daten hier.";
 $lang['qso_simplefle_syntax_help_ln8'] = "Für unser nächstes QSO um 21:40 Uhr am 14.05.2021 haben wir das Band auf 40m geändert, sind aber immer noch auf SSB. Wenn keine RST-Informationen angegeben sind, verwendet die Syntax bei jedem neuen QSO 59. Daher können wir ein weiteres QSO hinzufügen welches um die exakt selbe Zeit zwei Tage später stattfand. Das Datum muss im Format YYYY-MM-DD eingegeben werden.";
diff --git a/application/language/greek/qso_lang.php b/application/language/greek/qso_lang.php
index 4f2b93cdb..8ced35804 100644
--- a/application/language/greek/qso_lang.php
+++ b/application/language/greek/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/greek/station_lang.php b/application/language/greek/station_lang.php
index 0ef70d26e..e7b747d9e 100644
--- a/application/language/greek/station_lang.php
+++ b/application/language/greek/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/italian/qso_lang.php b/application/language/italian/qso_lang.php
index e8edeb789..564bf6ab6 100644
--- a/application/language/italian/qso_lang.php
+++ b/application/language/italian/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/italian/station_lang.php b/application/language/italian/station_lang.php
index 0ef70d26e..e7b747d9e 100644
--- a/application/language/italian/station_lang.php
+++ b/application/language/italian/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/polish/qso_lang.php b/application/language/polish/qso_lang.php
index 45aac94cd..4302fed75 100644
--- a/application/language/polish/qso_lang.php
+++ b/application/language/polish/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/polish/station_lang.php b/application/language/polish/station_lang.php
index 0ef70d26e..e7b747d9e 100644
--- a/application/language/polish/station_lang.php
+++ b/application/language/polish/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/russian/qso_lang.php b/application/language/russian/qso_lang.php
index 345299c08..5fa9f0b4c 100644
--- a/application/language/russian/qso_lang.php
+++ b/application/language/russian/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Прежде чем начать ре
 $lang['qso_simplefle_syntax_help_ln2'] = "- Каждое новое QSO должно проводиться на новой строке.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- На каждой новой строке записывайте только те данные, которые изменились по сравнению с предыдущим QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "Для начала убедитесь, что вы уже заполнили форму слева, указав дату, позывной станции и позывной оператора. Основные данные включают диапазон (или QRG в МГц, например, '7.145'), режим и время. После времени указывается первое QSO, которое, по сути, является позывным.";
-$lang['qso_simplefle_syntax_help_ln5'] = "Например, QSO, начавшееся в 21:34 (UTC) с 2M0SQL на 20 м SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "Например, QSO, начавшееся в 21:34 (UTC) с 4W7EST на 20 м SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "Если вы не предоставите никакой RST-информации, синтаксис будет использовать 59 (599 для данных). В нашем следующем QSO не было 59 с обеих сторон, поэтому мы предоставляем информацию с отправленным RST первыми. Это произошло на 2 минуты позже, чем первое QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "Первое QSO состоялось в 21:34, а второе - на 2 минуты позже, в 21:36. Мы записываем 6, потому что это единственные данные, которые здесь изменились. Информация о диапазоне и режиме не изменилась, поэтому эти данные опущены.";
 $lang['qso_simplefle_syntax_help_ln8'] = "Для следующего QSO в 21:40 14 мая 2021 года мы сменили диапазон на 40 м, но по-прежнему на SSB. Если информация о RST не указана, то синтаксис будет использовать 59 для каждого нового QSO. Поэтому мы можем добавить еще одно QSO, состоявшееся точно в это же время двумя днями позже. Дата должна быть в формате YYYY-MM-DD.";
diff --git a/application/language/russian/station_lang.php b/application/language/russian/station_lang.php
index 064341db9..4ba632c0f 100644
--- a/application/language/russian/station_lang.php
+++ b/application/language/russian/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Из-за недавних изм
 $lang['station_location_name'] = 'Название профиля';
 $lang['station_location_name_hint'] = 'Короткое название профиля расположения станции, к примеру: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Позывной станции';
-$lang['station_location_callsign_hint'] = 'Позывной станции, например: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Позывной станции, например: 4W7EST/P';
 $lang['station_location_power'] = 'Мощность станции (Вт)';
 $lang['station_location_power_hint'] = 'Мощность станции по умолчанию в Вт. Перезаписывается данными из CAT.';
 $lang['station_location_emptylog'] = 'Очистить лог';
diff --git a/application/language/spanish/qso_lang.php b/application/language/spanish/qso_lang.php
index 1efe32263..6ca1ff204 100644
--- a/application/language/spanish/qso_lang.php
+++ b/application/language/spanish/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Antes de empezar a registrar un QSO, o
 $lang['qso_simplefle_syntax_help_ln2'] = "- Cada QSO nuevo debe estar en una línea nueva.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- En cada nueva línea, solo escriba datos que hayan cambiado desde el QSO anterior.";
 $lang['qso_simplefle_syntax_help_ln4'] = "Para comenzar, asegúrese que ya ha rellenado el formulario en la izquierda con la fecha, el indicativo de la estación y el indicativo del operador. Los datos principales incluyen la banda (o QRG en MHz, ej., '7.145'), modo, y hora. Después de la hora, usted debe introducir el primer QSO, que es esencialmente el indicativo.";
-$lang['qso_simplefle_syntax_help_ln5'] = "Por ejemplo, un QSO que ha iniciado a las 21:34 (UTC) con 2M0SQL en 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "Por ejemplo, un QSO que ha iniciado a las 21:34 (UTC) con 4W7EST en 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "Si no introduce ninguna información RST, la sintaxis usará 59 (o 599 para datos). Nuestro siguiente QSO no era 59 en ambos lados, así que proveemos la información con el RST enviado primero. Fue 2 minutos después del primer QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "El primer QSL fue a las 21:34, y el segundo 2 minutos después a las 21:36. Escribimos 6 porque fue el único dato que cambió. La información de banda y modo no cambió, así que estos datos se omiten.";
 $lang['qso_simplefle_syntax_help_ln8'] = "Para nuestro siguiente QSO a las 21:40 el 14 de mayo de 2021, cambiamos la banda a 40m pero seguimos en SSB. Si no se ingresa datos de RST, la sintaxis usará 59 para cada nuevo QSO. Por lo tanto podemos añadir un nuevo QSO que ocurrió a la misma hora dos días después. La fecha debe estar en el formato YYYY-MM-DD.";
diff --git a/application/language/spanish/station_lang.php b/application/language/spanish/station_lang.php
index ccf601c2f..4c8547096 100644
--- a/application/language/spanish/station_lang.php
+++ b/application/language/spanish/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Debido a cambios recientes en Wave
 $lang['station_location_name'] = 'Nombre de Perfil';
 $lang['station_location_name_hint'] = 'Nombre corto para la Localización de Estación. Ejemplo: Casa (IO87IP)';
 $lang['station_location_callsign'] = 'Indicativo de la Estación';
-$lang['station_location_callsign_hint'] = 'Indicativo de llamada de la Estación. Ejemplo: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Indicativo de llamada de la Estación. Ejemplo: 4W7EST/P';
 $lang['station_location_power'] = 'Potencia de la Estación (W)';
 $lang['station_location_power_hint'] = 'Potencia de la estación por defecto en Vatios. Puede ser sobreescrito por CAT.';
 $lang['station_location_emptylog'] = 'Libro Vacío';
diff --git a/application/language/swedish/qso_lang.php b/application/language/swedish/qso_lang.php
index 8fc03dd26..cad2a332b 100644
--- a/application/language/swedish/qso_lang.php
+++ b/application/language/swedish/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/swedish/station_lang.php b/application/language/swedish/station_lang.php
index 0ef70d26e..e7b747d9e 100644
--- a/application/language/swedish/station_lang.php
+++ b/application/language/swedish/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/language/turkish/qso_lang.php b/application/language/turkish/qso_lang.php
index ab551286d..bd24eea6e 100644
--- a/application/language/turkish/qso_lang.php
+++ b/application/language/turkish/qso_lang.php
@@ -91,7 +91,7 @@ $lang['qso_simplefle_syntax_help_ln1'] = "Before starting to log a QSO, please n
 $lang['qso_simplefle_syntax_help_ln2'] = "- Each new QSO should be on a new line.";
 $lang['qso_simplefle_syntax_help_ln3'] = "- On each new line, only write data that has changed from the previous QSO.";
 $lang['qso_simplefle_syntax_help_ln4'] = "To begin, ensure you have already filled in the form on the left with the date, station call, and operator's call. The main data includes the band (or QRG in MHz, e.g., '7.145'), mode, and time. After the time, you provide the first QSO, which is essentially the callsign.";
-$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 2M0SQL on 20m SSB.";
+$lang['qso_simplefle_syntax_help_ln5'] = "For example, a QSO that started at 21:34 (UTC) with 4W7EST on 20m SSB.";
 $lang['qso_simplefle_syntax_help_ln6'] = "If you don't provide any RST information, the syntax will use 59 (599 for data). Our next QSO wasn't 59 on both sides, so we provide the information with the sent RST first. It was 2 minutes later than the first QSO.";
 $lang['qso_simplefle_syntax_help_ln7'] = "The first QSO was at 21:34, and the second one 2 minutes later at 21:36. We write down 6 because this is the only data that changed here. The information about band and mode didn't change, so this data is omitted.";
 $lang['qso_simplefle_syntax_help_ln8'] = "For our next QSO at 21:40 on 14th May, 2021, we changed the band to 40m but still on SSB. If no RST information is given, the syntax will use 59 for every new QSO. Therefore we can add another QSO which took place at the exact same time two days later. The date must be in format YYYY-MM-DD.";
diff --git a/application/language/turkish/station_lang.php b/application/language/turkish/station_lang.php
index 0ef70d26e..e7b747d9e 100644
--- a/application/language/turkish/station_lang.php
+++ b/application/language/turkish/station_lang.php
@@ -61,7 +61,7 @@ $lang['station_location_warning_reassign'] = 'Due to recent changes within Wavel
 $lang['station_location_name'] = 'Profile Name';
 $lang['station_location_name_hint'] = 'Shortname for the station location. For example: Home (IO87IP)';
 $lang['station_location_callsign'] = 'Station Callsign';
-$lang['station_location_callsign_hint'] = 'Station callsign. For example: 2M0SQL/P';
+$lang['station_location_callsign_hint'] = 'Station callsign. For example: 4W7EST/P';
 $lang['station_location_power'] = 'Station Power (W)';
 $lang['station_location_power_hint'] = 'Default station power in Watt. Overwritten by CAT.';
 $lang['station_location_emptylog'] = 'Empty Log';
diff --git a/application/views/station_profile/create.php b/application/views/station_profile/create.php
index 8cdcaca07..945c9481c 100644
--- a/application/views/station_profile/create.php
+++ b/application/views/station_profile/create.php
@@ -36,7 +36,7 @@
 
 			<div class="mb-3">
 		    <label for="stationCallsignInput"><?php echo lang("station_location_callsign"); ?></label>
-		    <input type="text" class="form-control" name="station_callsign" id="stationCallsignInput" aria-describedby="stationCallsignInputHelp" placeholder="2M0SQL" required>
+		    <input type="text" class="form-control" name="station_callsign" id="stationCallsignInput" aria-describedby="stationCallsignInputHelp" placeholder="4W7EST" required>
 		    <small id="stationCallsignInputHelp" class="form-text text-muted"><?php echo lang("station_location_callsign_hint"); ?></small>
 		  </div>
 
diff --git a/updates/clublog_scp.txt b/updates/clublog_scp.txt
index 4da1c63d9..ea4f164e7 100644
--- a/updates/clublog_scp.txt
+++ b/updates/clublog_scp.txt
@@ -101864,7 +101864,7 @@ T7DX
 2M0RWZ
 2M0SDV
 2M0SMM
-2M0SQL
+4W7EST
 2M0TGD
 2M0TNM
 2M0TXY
diff --git a/updates/lotw_users.csv b/updates/lotw_users.csv
index db76736f2..cdbe4fc80 100644
--- a/updates/lotw_users.csv
+++ b/updates/lotw_users.csv
@@ -455,8 +455,8 @@
 2M0RRT/P,2016-10-13,18:45:55
 2M0RWZ,2017-08-23,20:52:08
 2M0SDV,2016-12-28,00:30:51
-2M0SQL,2020-09-19,18:01:03
-2M0SQL/P,2018-06-27,23:45:11
+4W7EST,2020-09-19,18:01:03
+4W7EST/P,2018-06-27,23:45:11
 2M0TGN,2016-08-01,18:44:01
 2M0TXK,2015-01-16,18:12:18
 2M0TXY,2018-12-31,20:17:11