diff --git a/src/NanoVNASaver/Hardware/Hardware.py b/src/NanoVNASaver/Hardware/Hardware.py
index 327e849..20713cb 100644
--- a/src/NanoVNASaver/Hardware/Hardware.py
+++ b/src/NanoVNASaver/Hardware/Hardware.py
@@ -30,11 +30,13 @@ from NanoVNASaver.Hardware.AVNA import AVNA
 from NanoVNASaver.Hardware.NanoVNA import NanoVNA
 from NanoVNASaver.Hardware.NanoVNA_F import NanoVNA_F
 from NanoVNASaver.Hardware.NanoVNA_F_V2 import NanoVNA_F_V2
-from NanoVNASaver.Hardware.JNCRadio_VNA_3G import JNCRadio_VNA_3G
 from NanoVNASaver.Hardware.NanoVNA_H import NanoVNA_H
 from NanoVNASaver.Hardware.NanoVNA_H4 import NanoVNA_H4
 from NanoVNASaver.Hardware.NanoVNA_V2 import NanoVNA_V2
 from NanoVNASaver.Hardware.TinySA import TinySA, TinySA_Ultra
+from NanoVNASaver.Hardware.JNCRadio_VNA_3G import JNCRadio_VNA_3G
+from NanoVNASaver.Hardware.SV4401A import SV4401A
+from NanoVNASaver.Hardware.SV6301A import SV6301A
 from NanoVNASaver.Hardware.Serial import drain_serial, Interface
 
 logger = logging.getLogger(__name__)
@@ -56,11 +58,13 @@ NAME2DEVICE = {
     "H4": NanoVNA_H4,
     "H": NanoVNA_H,
     "F_V2": NanoVNA_F_V2,
-    "JNCRadio": JNCRadio_VNA_3G,
     "F": NanoVNA_F,
     "NanoVNA": NanoVNA,
     "tinySA": TinySA,
     "tinySA_Ultra": TinySA_Ultra,
+    "JNCRadio": JNCRadio_VNA_3G,
+    "SV4401A": SV4401A,
+    "SV6301A": SV6301A,
     "Unknown": NanoVNA,
 }
 
@@ -152,11 +156,13 @@ def get_comment(iface: Interface) -> str:
         ("NanoVNA-H 4", "H4"),
         ("NanoVNA-H", "H"),
         ("NanoVNA-F_V2", "F_V2"),
-        ("JNCRadio_VNA_3G", "JNCRadio"),
         ("NanoVNA-F", "F"),
         ("NanoVNA", "NanoVNA"),
         ("tinySA4", "tinySA_Ultra"),
         ("tinySA", "tinySA"),
+        ("JNCRadio_VNA_3G", "JNCRadio"),
+        ("SV4401A", "SV4401A"),
+        ("SV6301A", "SV6301A"),
     ):
         if info.find(search) >= 0:
             return name
diff --git a/src/NanoVNASaver/Hardware/JNCRadio_VNA_3G.py b/src/NanoVNASaver/Hardware/JNCRadio_VNA_3G.py
index 18a9d50..ce87ef4 100644
--- a/src/NanoVNASaver/Hardware/JNCRadio_VNA_3G.py
+++ b/src/NanoVNASaver/Hardware/JNCRadio_VNA_3G.py
@@ -55,3 +55,8 @@ class JNCRadio_VNA_3G(NanoVNA):
         except serial.SerialException as exc:
             logger.exception("Exception while capturing screenshot: %s", exc)
         return QPixmap()
+
+    def setSweep(self, start, stop):
+        self.start = start
+        self.stop = stop
+        list(self.exec_command(f"scan {start} {stop} {self.datapoints}"))
diff --git a/src/NanoVNASaver/Hardware/SV4401A.py b/src/NanoVNASaver/Hardware/SV4401A.py
new file mode 100644
index 0000000..a281ce2
--- /dev/null
+++ b/src/NanoVNASaver/Hardware/SV4401A.py
@@ -0,0 +1,64 @@
+#  NanoVNASaver
+#
+#  A python program to view and export Touchstone data from a NanoVNA
+#  Copyright (C) 2019, 2020  Rune B. Broberg
+#  Copyright (C) 2020,2021 NanoVNA-Saver Authors
+#
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+import logging
+
+import serial
+from PyQt6.QtGui import QImage, QPixmap
+
+from NanoVNASaver.Hardware.NanoVNA import NanoVNA
+from NanoVNASaver.Hardware.Serial import Interface
+
+logger = logging.getLogger(__name__)
+
+
+class SV4401A(NanoVNA):
+    name = "SV4401A"
+    screenwidth = 1024
+    screenheight = 600
+    valid_datapoints = (101, 301, 501)
+    sweep_points_max = 101
+    sweep_points_max = 501
+
+    def __init__(self, iface: Interface):
+        super().__init__(iface)
+        self.sweep_max_freq_Hz = 4.4e9
+
+    def getScreenshot(self) -> QPixmap:
+        logger.debug("Capturing screenshot...")
+        self.serial.timeout=8
+        if not self.connected():
+            return QPixmap()
+        try:
+            rgba_array = self._capture_data()
+            image = QImage(
+                rgba_array,
+                self.screenwidth,
+                self.screenheight,
+                QImage.Format.Format_RGB16,
+            )
+            logger.debug("Captured screenshot")
+            return QPixmap(image)
+        except serial.SerialException as exc:
+            logger.exception("Exception while capturing screenshot: %s", exc)
+        return QPixmap()
+
+    def setSweep(self, start, stop):
+        self.start = start
+        self.stop = stop
+        list(self.exec_command(f"scan {start} {stop} {self.datapoints}"))
diff --git a/src/NanoVNASaver/Hardware/SV6301A.py b/src/NanoVNASaver/Hardware/SV6301A.py
new file mode 100644
index 0000000..d0bb831
--- /dev/null
+++ b/src/NanoVNASaver/Hardware/SV6301A.py
@@ -0,0 +1,64 @@
+#  NanoVNASaver
+#
+#  A python program to view and export Touchstone data from a NanoVNA
+#  Copyright (C) 2019, 2020  Rune B. Broberg
+#  Copyright (C) 2020,2021 NanoVNA-Saver Authors
+#
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+import logging
+
+import serial
+from PyQt6.QtGui import QImage, QPixmap
+
+from NanoVNASaver.Hardware.NanoVNA import NanoVNA
+from NanoVNASaver.Hardware.Serial import Interface
+
+logger = logging.getLogger(__name__)
+
+
+class SV6301A(NanoVNA):
+    name = "SV6301A"
+    screenwidth = 1024
+    screenheight = 600
+    valid_datapoints = (101, 301, 501)
+    sweep_points_max = 101
+    sweep_points_max = 501
+
+    def __init__(self, iface: Interface):
+        super().__init__(iface)
+        self.sweep_max_freq_Hz = 6.3e9
+
+    def getScreenshot(self) -> QPixmap:
+        logger.debug("Capturing screenshot...")
+        self.serial.timeout=8
+        if not self.connected():
+            return QPixmap()
+        try:
+            rgba_array = self._capture_data()
+            image = QImage(
+                rgba_array,
+                self.screenwidth,
+                self.screenheight,
+                QImage.Format.Format_RGB16,
+            )
+            logger.debug("Captured screenshot")
+            return QPixmap(image)
+        except serial.SerialException as exc:
+            logger.exception("Exception while capturing screenshot: %s", exc)
+        return QPixmap()
+
+    def setSweep(self, start, stop):
+        self.start = start
+        self.stop = stop
+        list(self.exec_command(f"scan {start} {stop} {self.datapoints}"))