Cortex V1 VHF radio with SOTDMA smartAIS and remote vessel monitoring

NOTE: If your delivery address is outside of the US, Canada or Caribbean please change your region selection at the bottom of this page.
This device has not been authorized as required by the rules of the Federal Communications Commission. This device is not, and may not be, offered for sale or lease, or sold or leased, until authorization is obtained.

What's In The Box

  • M1 Hub
  • H1 Tethered Handset
  • GPS Antenna (10m)
  • Power Cable
  • NMEA 2000 Drop Cable
  • NMEA 2000 Tee
  • Audio Cable
  • External Sensors Cable
  • Optional WiFi Antenna

M1 Hub

Size 168mm x 168mm x 58.7mm depth (6.6142” x 6.6142” x 2.3110”)
Power Supply 9-33V. 12V: 6A max, 500mA nominal
Weight770g (1.7lbs)
EnvironmentalWaterproof (IPx7)
Operating Temperature -25°C to +55°C (-13°F to 131°F)
Supported ProtocolsAIS Class B SO-TDMA, VHF Voice, Class D DSC, ATIS (user configurable, EU region), NOAA Weather (US region)
Transmitter Frequency ErrorLess than 300Hz
Antenna Connector SO239
Splitter Max input power 25W, Insertion Loss RX 0dB, TX < 1dB
Splitter ConnectorBNC (2W)
VHF Frequency Range Transmit156.025–161.600 MHz
VHF Frequency Range Receive156.050–163.275 MHz
Dedicated Rx Channels3
Power Output25W, 1W (High, Low)
Regions USA, CAN, INT
Sensitivity (12 Db Sinad) -116 dBm
Adjacent Channel Selectivity 80 dB
Spurious Response 70 dB
Intermodulation 70 dB
Spurious Emissions Less than –80 dBc (at 25 W)
Max Audio Output Power 10W, < 1% THD
Direct Calling (DSC)
Dedicated Receive Channels 1
Sensitivity (1% Ber) -113 dBm
Adjacent Channel Selectivity80 dB
Spurious Response70 dB
Intermodulation70 dB
ClassSO-TDMA Class B
Dedicated Receive Channels 2
Frequency Range156.025 – 162.025 MHz
Power Output 5W, 1W (High, Low)
AIS Sensitivity (20% Per)-112 dBm
Adjacent Channel Selectivity80 dB
Spurious Response70 dB
Intermodulation65 dB
ConstellationsGPS, GLONASS, Bei Dou, Galilleo
Differential SupportSBAS, WAAS, EGNOS
Navigation Rate10Hz
CertificationsIEC 61108
FeaturesAnti-jamming, Anti-spoofing
Nmea 2000 Gateway1 x Isolated Micro-C male port, AIS and GPS PGN output, Gateway Translations to/from NMEA0183
Nmea 01831 x Isolated NMEA0183 ports, AIS and GPS sentences, Gateway Translations to/from NMEA2000, 4800 / 38400 baud
WirelessAccess Point for up to 10 devices, 2.4GHz, 802.11b/g/n, Integrated Antenna, SMA-RP external antenna port (optional)
Wireless SecurityWPA2 Personal
Cloud ConnectivityLTE-Cat1 with 3G fallback (USA), 3G (Canada, EU, Asia), Integrated SIM, Integrated Antenna, SMA-RP external antenna port (optional)
Control Outputs2 Outputs. Low side driven (max 200mA)
Heading9-Axial, Internal use only, Accuracy: +/- 1 deg, Updated rate: 10Hz (max)
Barometer Update rate 1Hz max (averaged)
Battery VoltageMeasured at power input
External Sensor Inputs5 Inputs, Digital (0-24V), Analog (0-10V)
Supported FunctionsVHF RX, Alarms
Amplifier10W Class D, THD < 1%
Speaker4 ohm

Tethered H1 Handset

Size 164.8 mm x 71.8 mm x 21.4 mm (6.4882” x 2.8268” x 0.8425”)
Power Supply12V, 1A max, 200mA nominal, 12 -24V compatible
Battery Lithium Polymer, 2 hour full charge, >12 hours nominal operation
Weight 235g
Environmental Waterproof (IPx7)
Operating temperature -25°C to +55°C (-13°F to 131°F)
Audio 3W Class D amplifier, THD < 5% @ 85dBA
ScreenLCD TFT Si, 640 x 800, 24bit Colour
Touch Capacitive, optically bonded to LCD. Glove and salt water operable.
Backlight600 cd/m2. Ambient light sensor for auto dimming

Specifications may change due to product improvements and different product release versions.

Includes Vesper Marine's patented AIS technology. For more information about our international patents, contact us.

Product details Cortex V1 Cortex M1
Description VHF Radio + SOTDMA smartAIS transponder + Remote Vessel Monitoring SOTDMA smartAIS transponder + Remote Vessel Monitoring
Main Components Cortex M1 + Cortex H1 + External GPS Antenna Cortex M1 + External GPS Antenna
VHF Voice Calling Yes Upgrade by adding H1P Handset
Class D DSC Yes Upgrade by adding H1P Handset
Cortex H1 Handset included Yes VHF Ready. Just add H1P for full VHF functionality
Multiple VHF Stations Upto 10 wired H1 or wireless H1P handsets Upgrade by adding H1P Handset
AIS and VHF Display High resolution 4" color touch screen or using a smartphone or tablet AIS display using a smartphone or tablet.
Collision Avoidance - Determines crossing situations by CPA and TCPA and triggers alarms with prioritization Yes Yes
Anchor Watch - Triggers an alarm if your anchor is dragging as well as with changes in anchor due to wind direction, wind speed and water depth Yes Yes
Safety of Crew - Triggers an alarm if a crew member falls overboard (works with any manufacturer MOB) and provides position information with updates for quick retrieval Yes Yes
Alarm Management - Dedicated built-in alarms, do not need any other equipment to trigger alarms Yes Yes
Built-in WiFi – Access anywhere on board. Monitor and control your AIS transponder at all times from your smartphone or tablet Yes Yes
NMEA 2000 Gateway - Translates NMEA 2000 navigation data and routes it over WiFi to smartphones and tablets or NMEA 2000 or 0183 to radar, chartplotters and other navigation equipment Yes Yes
Higher resolution GPS – Fast 10HZ update rate for smoother GPS tracking. Yes Yes
GPS source for the entire navigation network Yes Yes
Upgradable AIS platform – Automatic firmware updates from your smartphone or tablet Yes Yes
Low power consumption Good, 6W Good, 6W
Built-in GPS antenna with an optional external GPS antenna Yes Yes
Intelligent filtering - Filters can be set based on vessel range, speed, CPA and TCPA Yes Yes
Galvanic isolated ports - Protect your transponder and connected equipment from high current. Yes Yes
Fully waterproof IPx7 rating - Can be mounted anywhere Yes Yes
Remote Vessel Monitoring Yes Yes
Bracket or flush mounting included Yes Yes