semuconsulting · semuadmin · Feb 13, 2026 · Feb 5, 2026 · Feb 9, 2026 · Feb 10, 2026
diff --git a/INSTALLATION.md b/INSTALLATION.md
@@ -243,11 +243,13 @@ TBC. Anyone conversant with PowerShell is welcome to contribute an equivalent in
 
 ## <a name="troubleshooting">Troubleshooting</a>
 
-1. The optional `rasterio` package is only available as an [sdist](#sdist-vs-wheel) on some Linux / ARM platforms (including Raspberry Pi OS), and the consequent [GDAL](https://gdal.org/en/stable/) build and configuration requirements may be problematic e.g. `WARNING:root:Failed to get options via gdal-config`. Refer to [rasterio installation](https://rasterio.readthedocs.io/en/stable/installation.html) and [GDAL installation](https://gdal.org/en/stable/) for assistance but - *be warned* - the process is **not** for the faint-hearted.
+1. `[Errno 13] could not open port /dev/tty**** [Errno 13] permission denied /dev/tty****` error on Linux when attempting to access serial port. Refer to [User Privileges](#userpriv).
+
+1. The optional `rasterio` package is only available as an [sdist](#sdist-vs-wheel) on some Linux / ARM platforms and the consequent [GDAL](https://gdal.org/en/stable/) build and configuration requirements may be problematic e.g. `WARNING:root:Failed to get options via gdal-config`. Refer to [rasterio installation](https://rasterio.readthedocs.io/en/stable/installation.html) and [GDAL installation](https://gdal.org/en/stable/) for assistance but - *be warned* - the process is **not** for the faint-hearted.
 
    In practice, `rasterio` is only required for automatic extents detection in PyGPSClient's Import Custom Map facility. As a workaround, extents can be entered manually, or you can try importing maps on a different platform and then copy-and-paste the relevant `usermaps_l` extents configuration to the target platform.
 
-1. The optional `cryptography` package is only available as an [sdist](#sdist-vs-wheel) on some 32-bit Linux / ARM platforms (including Raspberry Pi OS), and the consequent OpenSSL build requirements may be problematic e.g. `Building wheel for cryptography (PEP 517): finished with status 'error'`. Refer to [cryptography installation](https://github.com/semuconsulting/pyspartn/blob/main/cryptography_installation/README.md) for assistance.
+1. The optional `cryptography` package is only available as an [sdist](#sdist-vs-wheel) on some 32-bit Linux / ARM platforms and the consequent OpenSSL build requirements may be problematic e.g. `Building wheel for cryptography (PEP 517): finished with status 'error'`. Refer to [cryptography installation](https://github.com/semuconsulting/pyspartn/blob/main/cryptography_installation/README.md) for assistance.
 
 ---
 ## <a name="license">License</a>

diff --git a/README.md b/README.md
@@ -20,7 +20,7 @@
 
 PyGPSClient is a free, open-source, multi-platform graphical GNSS/GPS testing, diagnostic and configuration application written entirely by volunteers in Python and tkinter. 
 * Runs on any platform which supports a Python 3 interpreter (>=3.10) and tkinter (>=8.6) GUI framework, including Windows, MacOS, Linux and Raspberry Pi OS. Accommodates low resolution screens (>= 640x480) via resizable and/or scrollable panels.
-* Supports NMEA, UBX, SBF, QGC, RTCM3, NTRIP, SPARTN, MQTT and TTY (ASCII) protocols¹.
+* Supports NMEA, UBX (u-blox binary), SBF (Septentrio binary), UNI (Unicore binary), QGC (Quectel binary), RTCM3, NTRIP, SPARTN, MQTT and TTY (ASCII) protocols¹.
 * Capable of reading from a variety of GNSS data streams: Serial (USB / UART), Socket (TCP / UDP), binary data stream (terminal or file capture) and binary recording (e.g. u-center \*.ubx).
 * Provides [NTRIP](#ntripconfig) client facilities.
 * Can serve as an [NTRIP base station](#basestation) with an RTK-compatible receiver (e.g. u-blox ZED-F9P/ZED-X20P, Quectel LG290P/LG580P/LC29H, Septentrio Mosaic G5/X5 or Unicore UM98n).
@@ -116,7 +116,7 @@ For more comprehensive installation instructions, please refer to [INSTALLATION.
 1. To immediately disconnect and terminate all running threads, click Ctrl-K ("Kill Switch").
 1. To exit the application, click
 ![exit icon](https://github.com/semuconsulting/PyGPSClient/blob/master/src/pygpsclient/resources/iconmonstr-door-6-24.png?raw=true), or press Ctrl-Q, or click the application window's close window icon.
-1. Protocols Shown - Select which protocols to display; NMEA, UBX, SBF, QGC, RTCM3, SPARTN or TTY (NB: this only changes the displayed protocols - to change the actual protocols output by the receiver, use the [UBX Configuration Dialog](#ubxconfig)).
+1. Protocols Shown - Select which protocols to display; NMEA, UBX (*u-blox binary*), SBF (*Septentrio binary*), UNI (*Unicore binary*), QGC (*Quectel binary*), RTCM3, SPARTN or TTY (*ASCII text*) (NB: this only changes the displayed protocols - to change the actual protocols output by the receiver, use the relevant configuration command(s)).
    - **NB:** Serial connection must be stopped before changing to or from TTY (terminal) protocol.
    - **NB:** Enabling TTY (terminal) mode will disable all other protocols.
 1. Console Display - Select console display format (Parsed, Binary, Hex Tabular, Hex String, Parsed+Hex Tabular - see Console Widget below).
@@ -457,7 +457,7 @@ The `pygnssutils` and `pyubxutils` libraries which underpin many of the function
 
 For further details, refer to the `pygnssutils` homepage at [https://github.com/semuconsulting/pygnssutils](https://github.com/semuconsulting/pygnssutils) or `pyubxutils` homepage at [https://github.com/semuconsulting/pyubxutils](https://github.com/semuconsulting/pyubxutils).
 
---
+---
 ## <a name="knownissues">Known Issues</a>
 
 1. Most budget USB-UART adapters (e.g. FT232, CH345, CP2102) have a bandwidth limit of around 3MB/s and may not work reliably above 115200 baud, even if the receiver supports higher baud rates. If you're using an adapter and notice significant message corruption, try reducing the baud rate to a maximum 115200.

diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
@@ -1,5 +1,9 @@
 # PyGPSClient Release Notes
 
+### RELEASE 1.6.3
+
+1. Add support for Unicore UNI binary data output messages via `pyunigps>=0.1.3` and `pygnssutils>=1.1.22`.
+
 ### RELEASE 1.6.2
 
 1. Add support for Unicore Secondary Antenna and Attitude (IMU) NMEA sentences e.g. UM98n "GGAH", "HPD" (requires pynmeagps>=1.1.0).

diff --git a/pyproject.toml b/pyproject.toml
@@ -49,7 +49,12 @@ classifiers = [
     "Topic :: Scientific/Engineering :: GIS",
 ]
 
-dependencies = ["requests>=2.28.0", "Pillow>=9.0.0", "pygnssutils>=1.1.21"]
+dependencies = [
+    "requests>=2.28.0",
+    "Pillow>=9.0.0",
+    "pygnssutils>=1.1.22",
+    "pyunigps>=0.1.4",
+]
 
 [project.scripts]
 pygpsclient = "pygpsclient.__main__:main"

diff --git a/src/pygpsclient/_version.py b/src/pygpsclient/_version.py
@@ -8,4 +8,4 @@
 :license: BSD 3-Clause
 """
 
-__version__ = "1.6.2"
+__version__ = "1.6.3"
diff --git a/src/pygpsclient/app.py b/src/pygpsclient/app.py
@@ -48,13 +48,14 @@
 from types import NoneType
 
 from pygnssutils import GNSSMQTTClient, GNSSNTRIPClient, MQTTMessage
-from pygnssutils.gnssreader import (  # UNI_PROTOCOL, # TODO
+from pygnssutils.gnssreader import (
     NMEA_PROTOCOL,
     POLL,
     QGC_PROTOCOL,
     RTCM3_PROTOCOL,
     SBF_PROTOCOL,
     UBX_PROTOCOL,
+    UNI_PROTOCOL,
 )
 from pygnssutils.socket_server import ClientHandler, ClientHandlerTLS, SocketServer
 from pynmeagps import NMEAMessage
@@ -63,6 +64,7 @@
 from pysbf2 import SBFMessage
 from pyspartn import SPARTNMessage
 from pyubx2 import UBXMessage
+from pyunigps import UNIMessage
 from serial import SerialException, SerialTimeoutException
 
 from pygpsclient._version import __version__ as VERSION
@@ -97,7 +99,6 @@
     STATUSPRIORITY,
     TTY_PROTOCOL,
     UNDO,
-    UNI_PROTOCOL,
 )
 from pygpsclient.gnss_status import GNSSStatus
 from pygpsclient.helpers import (
@@ -913,8 +914,8 @@ def process_data(self, raw_data: bytes, parsed_data: object, marker: str = ""):
             msgprot = SBF_PROTOCOL
         elif isinstance(parsed_data, QGCMessage):
             msgprot = QGC_PROTOCOL
-        # elif isinstance(parsed_data, UNIMessage):
-        #     msgprot = UNI_PROTOCOL
+        elif isinstance(parsed_data, UNIMessage):
+            msgprot = UNI_PROTOCOL
         elif isinstance(parsed_data, UBXMessage):
             msgprot = UBX_PROTOCOL
         elif isinstance(parsed_data, RTCMMessage):

diff --git a/src/pygpsclient/chart_frame.py b/src/pygpsclient/chart_frame.py
@@ -40,6 +40,7 @@
     BGCOL,
     ERRCOL,
     FGCOL,
+    INFOCOL,
     PLOTCOLS,
     READONLY,
     TRACEMODE_WRITE,
@@ -48,6 +49,7 @@
     WIDGETU6,
 )
 from pygpsclient.helpers import time2str
+from pygpsclient.strings import CONTENTCOPIED
 
 OL_WID = 1
 LBLCOL = "white"
@@ -623,6 +625,7 @@ def _on_clipboard(self, event):  # pylint: disable=unused-argument
         self.__master.clipboard_clear()
         self.__master.clipboard_append(csv)
         self.__master.update()
+        self.__app.status_label = (CONTENTCOPIED.format("chart"), INFOCOL)
 
     def _on_resize(self, event):  # pylint: disable=unused-argument
         """

diff --git a/src/pygpsclient/console_frame.py b/src/pygpsclient/console_frame.py
@@ -43,9 +43,10 @@
     FORMAT_BOTH,
     FORMAT_HEXSTR,
     FORMAT_HEXTAB,
+    INFOCOL,
     WIDGETU3,
 )
-from pygpsclient.strings import HALTTAGWARN
+from pygpsclient.strings import CONTENTCOPIED, HALTTAGWARN
 
 HALT = "HALT"
 CONSOLELINES = 20
@@ -242,6 +243,7 @@ def _on_clipboard(self, event):  # pylint: disable=unused-argument
         self.__master.clipboard_clear()
         self.__master.clipboard_append(self.txt_console.get("1.0", END))
         self.__master.update()
+        self.__app.status_label = (CONTENTCOPIED.format("console"), INFOCOL)
 
     def _on_resize(self, event):  # pylint: disable=unused-argument
         """

diff --git a/src/pygpsclient/globals.py b/src/pygpsclient/globals.py
@@ -53,7 +53,6 @@
 PNTCOL = "#FF8000"  # default plot point color
 
 # Protocols to be used in protocol mask (others defined in pygnssutils.gnss_reader.py)
-UNI_PROTOCOL = 32  # provisional - awaiting pygnssutils.gnssreader updates for Unicore
 SPARTN_PROTOCOL = 256
 MQTT_PROTOCOL = 512
 TTY_PROTOCOL = 1024
@@ -252,7 +251,7 @@
 TRACK = "track"
 TRACEMODE_WRITE = "write"
 TTYOK = ("OK", "$R:")
-TTYERR = ("ERROR", "$R?")
+TTYERR = ("ERROR", "$R?", "FAIL", "CAN'T FOUND DEVICE")
 TTYMARKER = "TTY<<"
 UBXPRESETS = "ubxpresets"
 UBXSIMULATOR = "ubxsimulator"
@@ -424,11 +423,31 @@
     "PVTGeodetic7": "RTK FIXED",
     "PVTGeodetic8": "RTK FLOAT",
     "PVTGeodetic10": "PPP",
+    "BESTNAV0": "NO FIX",
+    "BESTNAV1": "FIXEDPOS",  # FIXEDPOS Position fixed by the FIX POSITION command
+    "BESTNAV2": "FIXEDHMSL",  # FIXEDHEIGHT Not supported currently
+    "BESTNAV8": "DOPP",  # DOPPLER_VELOCITY Velocity computed using instantaneous Doppler
+    "BESTNAV16": "3D",  # SINGLE Single point positioning
+    "BESTNAV17": "RTK FLOAT",  # SRDIFF Pseudorange differential solution
+    "BESTNAV18": "SBAS",  # SBAS SBAS positioning
+    "BESTNAV32": "RTK FLOAT",  # L1_FLOAT L1 float solution
+    "BESTNAV33": "RTK FLOAT",  # IONOFREE_FLOAT Ionosphere-free float solution
+    "BESTNAV34": "RTK FLOAT",  # NARROW_FLOAT Narrow-lane float solution
+    "BESTNAV48": "RTK FIXED",  # L1_INT L1 fixed solution
+    "BESTNAV49": "RTK FIXED",  # WIDE_INT Wide-lane fixed solution
+    "BESTNAV50": "RTK FIXED",  # NARROW_INT Narrow-lane fixed solution
+    "BESTNAV52": "DR",  # INS Inertial navigation solution
+    "BESTNAV53": "3D+DR",  # INS_PSRSP Integrated solution of INS and single point pos
+    "BESTNAV54": "RTK+DR",  # INS_PSRDIFF Integrated solution of INS and pseudorange diff pos
+    "BESTNAV55": "RTK FLOAT+DR",  # INS_RTKFLOAT Integrated solution of INS and RTK float
+    "BESTNAV56": "RTK FIXED+DR",  # INS_RTKFIXED Integrated solution of INS and RTK fix
+    "BESTNAV68": "RTK FIXED+DR",  # INS_RTKFIXED Integrated solution of INS and RTK fix
+    "BESTNAV69": "PPP",  # PPP
 }
 """
 Map of fix values to descriptions.
-The keys in this map are a concatenation of NMEA/UBX
-message identifier and attribute value e.g.
+The keys in this map are a concatenation of
+message identity and attribute value e.g.
 GGA1: GGA + quality = 1
 NAV-STATUS3: NAV-STATUS + gpsFix = 3
 (valid for NMEA >=4)

diff --git a/src/pygpsclient/helpers.py b/src/pygpsclient/helpers.py
@@ -42,7 +42,7 @@
 from typing import Any, Literal
 
 from pygnssutils import version as PGVERSION
-from pynmeagps import WGS84_SMAJ_AXIS, NMEAMessage, haversine
+from pynmeagps import WGS84_SMAJ_AXIS, NMEAMessage, haversine, leapsecond
 from pynmeagps import version as NMEAVERSION
 from pyqgc import version as QGCVERSION
 from pyrtcm import version as RTCMVERSION
@@ -59,6 +59,7 @@
     atttyp,
 )
 from pyubx2 import version as UBXVERSION
+from pyunigps import version as UNIVERSION
 from requests import get
 
 from pygpsclient._version import __version__ as VERSION
@@ -107,6 +108,7 @@
     "pygnssutils": PGVERSION,
     "pyubx2": UBXVERSION,
     "pysbf2": SBFVERSION,
+    "pyunigps": UNIVERSION,
     "pyqgc": QGCVERSION,
     "pynmeagps": NMEAVERSION,
     "pyrtcm": RTCMVERSION,
@@ -1445,20 +1447,24 @@ def valid_geom(geom: str) -> bool:
     return regexgeom.match(geom) is not None
 
 
-def wnotow2date(wno: int, tow: int) -> datetime:
+def wnotow2date(wno: int, tow: int, ls: int | NoneType = None) -> datetime:
     """
-    Get datetime from GPS Week number (Wno) and Time of Week (Tow).
+    Get datetime from GPS Week number (Wno), Time of Week (Tow)
+    and leapsecond offset.
 
     GPS Epoch 0 = 6th Jan 1980
 
     :param int wno: week number
     :param int tow: time of week
+    :param int ls: leapsecond offset
     :return: datetime
     :rtype: datetime
     """
 
+    if ls is None:
+        ls = leapsecond(datetime.now())
     dat = GPSEPOCH0 + timedelta(days=wno * 7)
-    dat += timedelta(seconds=tow)
+    dat += timedelta(seconds=tow - ls)
     return dat
 
 

diff --git a/src/pygpsclient/init_presets.py b/src/pygpsclient/init_presets.py
@@ -99,8 +99,20 @@
         "Septentrio X5 Stop RTCM output;setDataInOut,COM1, ,none",
         "Unicore UM98n Restore Factory Defaults CONFIRM; freset",
         "Unicore UM98n Save Current Configuration to NVM CONFIRM; saveconfig",
+        "Unicore UM98n Force COLD reset CONFIRM; reset",
+        "Unicore UM98n Enable basic NMEA on current port; gpgsa 1; gpgga 1; gpgll 1; gpgsv 4; gpvtg 1; gprmc 1",
+        "Unicore UM98n Enable basic UNI on current port; PVTSLNB 1; SATSINFOB 4; BESTNAVB 1; STADOPB 1",
+        "Unicore UM98n Disable basic NMEA on current port; unlog gpgsa; unlog gpgga; unlog gpgll; unlog gpgsv; unlog gpvtg; unlog gprmc",
+        "Unicore UM98n Disable basic UNI on current port; unlog PVTSLNB; unlog SATSINFOB; unlog BESTNAVB; unlog STADOPB",
+        "Unicore UM98n Query Version; version",
+        "Unicore UM98n Query Config; config",
         "Unicore UM98n Stop All Output on COM1; unlog COM1",
         "Unicore UM98n Stop All Output on COM2; unlog COM2",
+        "Unicore UM98n Set COM1/2 Baud Rate to 115200; config com1 115200; config com2 115200",
+        "Unicore UM98n Set COM1/2 Baud Rate to 460800; config com1 460800; config com2 460800",
+        "Unicore UM98n Set Rover Mode CONFIRM; mode rover; saveconfig",
+        "Unicore UM98n Set Base Mode Survey-In CONFIRM; mode base time 60; rtcm1006 com1 10; rtcm1033 com1 10; rtcm1074 com1 1; rtcm1124 com1 1; rtcm1084 com1 1; rtcm1094 com1 1; saveconfig",
+        "Unicore UM98n Enable B2p PPP; CONFIG PPP ENABLE B2b-PPP; CONFIG PPP CONVERGE 10 20"
         "Feyman IM19 Tilt Survey Setup; AT+LOAD_DEFAULT; AT+GNSS_PORT=PHYSICAL_UART2; AT+NASC_OUTPUT=UART1,ON; AT+LEVER_ARM2=0.0057,-0.0732,-0.0645; AT+CLUB_VECTOR=0,0,1.865; AT+INSTALL_ANGLE=0,180,0; AT+GNSS_CARD=OEM; AT+WORK_MODE=408; AT+CORRECT_HOLDER=ENABLE; AT+SET_PPS_EDGE=RISING; AT+AHRS=ENABLE; AT+MAG_AUTO_SAVE=ENABLE; AT+SAVE_ALL",
         "Feyman IM19 System reset CONFIRM; AT+SYSTEM_RESET",
         "Feyman IM19 Save the parameters CONFIRM; AT+SAVE_ALL",

diff --git a/src/pygpsclient/settings_child_frame.py b/src/pygpsclient/settings_child_frame.py
@@ -456,11 +456,11 @@ def _do_layout(self):
         self._chk_nmea.grid(column=1, row=0, padx=0, pady=0, sticky=W)
         self._chk_ubx.grid(column=2, row=0, padx=0, pady=0, sticky=W)
         self._chk_rtcm.grid(column=3, row=0, padx=0, pady=0, sticky=W)
-        self._chk_sbf.grid(column=1, row=1, padx=0, pady=0, sticky=W)
-        self._chk_qgc.grid(column=2, row=1, padx=0, pady=0, sticky=W)
-        self._chk_spartn.grid(column=3, row=1, padx=0, pady=0, sticky=W)
-        self._chk_tty.grid(column=1, row=2, padx=0, pady=0, sticky=W)
-        # self._chk_unicore.grid(column=2, row=2, padx=0, pady=0, sticky=W) # TODO
+        self._chk_unicore.grid(column=1, row=1, padx=0, pady=0, sticky=W)
+        self._chk_sbf.grid(column=2, row=1, padx=0, pady=0, sticky=W)
+        self._chk_qgc.grid(column=3, row=1, padx=0, pady=0, sticky=W)
+        self._chk_spartn.grid(column=1, row=2, padx=0, pady=0, sticky=W)
+        self._chk_tty.grid(column=2, row=2, padx=0, pady=0, sticky=W)
         self._lbl_consoledisplay.grid(column=0, row=3, padx=2, pady=2, sticky=W)
         self._spn_conformat.grid(
             column=1, row=3, columnspan=2, padx=1, pady=2, sticky=W
@@ -536,6 +536,7 @@ def reset(self):
         self._prot_ubx.set(cfg.get("ubxprot_b"))
         self._prot_sbf.set(cfg.get("sbfprot_b"))
         self._prot_qgc.set(cfg.get("qgcprot_b"))
+        self._prot_unicore.set(cfg.get("uniprot_b"))
         self._prot_rtcm.set(cfg.get("rtcmprot_b"))
         self._prot_spartn.set(cfg.get("spartnprot_b"))
         self._prot_tty.set(cfg.get("ttyprot_b"))
@@ -588,7 +589,7 @@ def _on_update_qgcprot(self, var, index, mode):
 
     def _on_update_uniprot(self, var, index, mode):
         """
-        Action on updating unicoreprot.
+        Action on updating uniprot.
         """
 
         if not self._prot_tty.get():

diff --git a/src/pygpsclient/skyview_frame.py b/src/pygpsclient/skyview_frame.py
@@ -110,12 +110,9 @@ def update_frame(self):
         """
 
         data = self.__app.gnss_status.gsv_data
-        show_unused = self.__app.configuration.get("unusedsat_b")
         siv = len(data)
-        siv = siv if show_unused else siv - unused_sats(data)
         sel = sum(1 for (_, _, ele, _, _, _) in data.values() if ele not in ("", None))
-        # ignore if cno are all zero and 'show_unused' is not set,
-        # or if elevation values are all null
+        # ignore if elevation values are all null
         if siv <= 0 or sel <= 0:
             return
 
@@ -125,11 +122,7 @@ def update_frame(self):
         for val in sorted(data.values(), key=lambda x: x[4]):  # sort by ascending C/N0
             try:
                 gnssId, prn, ele, azi, cno, _ = val
-                if (
-                    (cno == 0 and not show_unused)
-                    or ele in ("", None)
-                    or azi in ("", None)
-                ):
+                if ele in ("", None) or azi in ("", None):
                     continue
                 x, y = self._canvas.d2xy(int(azi), int(ele))
                 _, ol_col = GNSS_LIST[gnssId]