Settings / AIS & NMEA / Advanced

NMEA & AIS Advanced

Settings

Advanced

Hybrid NMEA/AIS & Internal GPS (Only SEAiq Pilot) : When this is enabled, then the location information used is a mixture of NMEA/AIS and Internal. HDG and ROT come from NMEA/AIS. All other location data come from the internal GPS. This can be useful in situations where the internal GPS is more accurate than the location information from NMEA/AIS.
- When this feature is active, Hybrid is displayed in the status bar as the location data source.
- On IOS, you normally should enable Use Accurate Location in conjunction with this feature
- When used with NMEA Recording, the location information recorded is only from NMEA/AIS, so there may be some discrepancy during playback.
- Your device's position is normally different from Own-Ship's GPS antenna, so they need different offsets for True-Scale display. When this feature is enabled, the Ext GPS Position offsets are used instead of the AIS position offsets.
- Your device's position is normally different from Own-Ship's GPS antenna, so they need different offsets for True-Scale display. When this feature is enabled, the Ext GPS Position offsets are used instead of the AIS position offsets.
Only Use AIS Targets (All but SEAiq Pilot) : When enabled, the NMEA feed is only used for AIS targets. No other sensor (wind, etc) data from NMEA is used. This is normally only enabled if you are using an AIS feed that does not provide GPS or other sensor data.
Support for GNS2000 : When enabled, special commands are sent to the serial port to configure a GNS2000 device. These commands prevent the device from entering so-called Static Mode when your vessel is moving slowly. While other devices should quietly ignore and not be affected by the commands that are sent, we recommend this be left disabled unless you have one of the affected devices.
RSA Azipod Mode (Only SEAiq Pilot) : When enabled, and rudder sensor data are available from NMEA, the status bar displays rudder position differently, showing azipod images instead of rudder lines. This is the only effect; since AIS pilot plugs do not normally provide rudder sensor angles, this setting normally have no effect. Full-scale simulators can often provide rudder/azipod information.
RSA Offset (Only SEAiq Pilot) : This value is added to RSA values to correct for variations in expected orientation. This only affects the graphical orientation of the rudder angle display. When the offset is negative, the rudder value is negated afterwards. This is used to reverse the direction of orientation so that decreases in rudder angle result in clockwise rotationn.
Ntrip RTCM Feed (Only SEAiq Pilot) : Set up and manage connection to an Ntrip RTCM feed. This should only be used after consulting your PPU vendor to confirm your configuration supports this feature.

COG/SOG Derivation

Always Derive COG/SOG (Only SEAiq Pilot) : When enabled, COG/SOG will always be derived based on recent GPS positions. Any COG/SOG data from NMEA (Primary or Extra) is ignored.
It is almost always preferred to have your GPS hardware determine COG/SOG since that hardware has access to the most complete information about position. If uncertain, do not enable this option.
Derive COG/SOG When Needed (Only SEAiq Pilot) : If your device sometimes does not provide course and speed sensor data (COG/SOG), you can enable this setting so this data will be derived based on recent GPS positions. When enabled and COG/SOG data from NMEA is not available, the derived value is used.
This is normally only used with the Navicom Dynamics Channel Pilot product.
It is almost always preferred to have your GPS hardware determine COG/SOG since that hardware has access to the most complete information about position. If uncertain, do not enable this option.
Derive COG/SOG When Slow (Only SEAiq Pilot) : When enabled, COG/SOG will be derived from GPS position when speed is less than a given threshold.
It is almost always preferred to have your GPS hardware determine COG/SOG since that hardware has access to the most complete information about position. If uncertain, do not enable this option.
Slow Threshold (Only SEAiq Pilot) : Use this to set a threshold speed for deriving COG/SOG from GPS position. When estimated speed is below this threshold, then the derived value will be used. The default is 3kn.
Derive COG/SOG from GPS Dampening (Only SEAiq Pilot) : This controls how much dampening to use when COG/SOG from GPS. The speed is estimated based on an average of the previous 10 seconds (the default), 15 seconds, or 20 seconds. Longer duration may be more accurate but less responsive to changes, and vice-versa.

Sensor Masking

Ignore HDG from AIS Own-Ship (Only SEAiq Pilot) : When enabled, HDG (Heading) from AIS is ignored. This can be used in cases where the HDG data from AIS is erroneous or suspected to be of poor quality.
This has no effect on HDG from other sources, which may have similar setting for ignoring HDG.
For cases where HDG has a constant (non-changing or very slowly changing) error, you may choose to use Settings / Own-Ship / Heading Offset instead of this.
Ignore ROT from AIS Own-Ship (Only SEAiq Pilot) : When enabled, ROT (Rate-of-Turn) from AIS is ignored. This can be used in cases where the ROT data from AIS is erroneous or suspected to be of poor quality.
This has no effect on ROT from other sources, which may have similar setting for ignoring ROT.
Ignore HDG from NMEA (Only SEAiq Pilot) : When enabled, HDG (Heading) from Primary NMEA feed is ignored. This allows HDG from AIS to be used instead (or no HDG to be used if none is available from AIS). This can be enabled in cases where the HDG data from Primary NMEA is erroneous or suspected to be of poor quality.
This has no effect on HDG from other sources, which may have similar setting for ignoring HDG.
For cases where HDG has a constant (non-changing or very slowly changing) error, you may choose to use Settings / Own-Ship / Heading Offset instead of this.
Ignore ROT from NMEA (Only SEAiq Pilot) : When enabled, ROT (Rate-of-Turn) from Primary NMEA feed is ignored. This allows ROT from AIS to be used instead (or no ROT to be used if none is available from AIS). This can be enabled in cases where the ROT data from Primary NMEA is erroneous or suspected to be of poor quality.
This has no effect on ROT from other sources, which may have similar setting for ignoring ROT.
Ignore All Own-ship Sensors from NMEA (Only SEAiq Pilot) : When enabled, COG, SOG, ROT, HDG, LAT, LON from NMEA are ignored. Other information such as battery level are still accepted. This is normally only used in exceptional situations.
Ignore HDG from NMEA Extra (Only SEAiq Pilot) : When enabled, HDG (Heading) from Extra NMEA feed is ignored. This allows HDG from another source (AIS or Primary NMEA) to be used instead (or no HDG to be used). This can be enabled in cases where the HDG data from Extra NMEA is erroneous or suspected to be of poor quality.
This has no effect on HDG from other sources, which may have similar setting for ignoring HDG.
For cases where HDG has a constant (non-changing or very slowly changing) error, you may choose to use Settings / Own-Ship / Heading Offset instead of this.
Ignore ROT from NMEA Extra (Only SEAiq Pilot) : When enabled, ROT (Rate-of-Turn) from Extra NMEA feed is ignored. This allows ROT from another source (AIS or Primary NMEA) to be used instead (or no ROT to be used). This can be enabled in cases where the ROT data from Extra NMEA is erroneous or suspected to be of poor quality.
This has no effect on ROT from other sources, which may have similar setting for ignoring ROT.
Ignore HDG from NMEA Extra (Only SEAiq Pilot) : When enabled, HDG (Heading) from Extra NMEA feed is ignored. This allows HDG from another source (AIS or Primary NMEA) to be used instead (or no HDG to be used). This can be enabled in cases where the HDG data from Extra NMEA is erroneous or suspected to be of poor quality.
This has no effect on HDG from other sources, which may have similar setting for ignoring HDG.
For cases where HDG has a constant (non-changing or very slowly changing) error, you may choose to use Settings / Own-Ship / Heading Offset instead of this.
Ignore ROT from NMEA Extra (Only SEAiq Pilot) : When enabled, ROT (Rate-of-Turn) from Extra NMEA feed is ignored. This allows ROT from another source (AIS or Primary NMEA) to be used instead (or no ROT to be used). This can be enabled in cases where the ROT data from Extra NMEA is erroneous or suspected to be of poor quality.
This has no effect on ROT from other sources, which may have similar setting for ignoring ROT.

Smoothing

Smooth COG/SOG : If your device provides jumpy COG/SOG data, you can enable this setting. This may improve other derived data, such as derived current and true wind speed. This is normally only used on small sailing vessels.
It is almost always preferred to have your GPS hardware be configured to apply appropriate smoothing. If uncertain, do not enable this option.
Smooth COG/SOG Amount : This controls how much smoothing to use for COG/SOG. The speed is estimated based on an average of the previous 10 seconds (the default), 30 seconds, or 60 seconds. Longer duration will increase smoothing but be less responsive to changes, and vice-versa.
Smooth STW : If your device provides jumpy STW data, you can enable this setting. This may improve other derived data, such as derived current. This only has an effect if you have a STW sensor already; AIS Pilot Plugs do not normally provide STW. This is normally only used on small sailing vessels.
It is almost always preferred to have your sensor be configured to apply appropriate smoothing. If uncertain, do not enable this option.
Smooth STW Amount : This controls how much smoothing to use for STW. The speed is estimated based on an average of the previous 10 seconds (the default), 30 seconds, or 60 seconds. Longer duration will increase smoothing but be less responsive to changes, and vice-versa.
Smooth Apparent Wind : If your device provides jumpy apparent wind (AWA & AWS), you can enable this setting. This may improve other derived data, such as derived true wind. This only has an effect if you have a wind sensor already; AIS Pilot Plugs do not normally provide apparent wind. This is normally only used on small sailing vessels.
It is almost always preferred to have your sensor be configured to apply appropriate smoothing. If uncertain, do not enable this option.
Smooth Apparent Wind Amount : This controls how much smoothing to use for apparent wind. The speed is estimated based on an average of the previous 10 seconds (the default), 30 seconds, or 60 seconds. Longer duration will increase smoothing but be less responsive to changes, and vice-versa.

Data Transfer

Transmit Waypoints (All but SEAiq Pilot) : This is used to send waypoints to your chartplotter. Waypoints are transferred at a rate of 2/sec using NMEA "$GPWPL" sentences. Note that special characters in the waypoint name may be replaced with underscores ('_'). No route information is transferred.
Transmit Current Goal (All but SEAiq Pilot) : This is used to inform other devices on your vessel about the route you are on. It sends NMEA "$GPBWW", "$GPXTE", and/or "$GPRMB" sentences.

NMEA Server WiFi

Server Enable : Enable this if you want to share location information with other devices on the network.
Server Port : Port to use for sharing location information. A port is an integer number in the range 1-65535.
Status : Current status.

NMEA Server Serial

Enable (Only SEAiq Pilot) : Enable this if you want to share location information with other devices. This particular feature is intended for use with USB to AIS pilot plug adaptors as part of training. It allows connection of an AIS pilot plug adaptor (available from companies such as PilotsTech) to a laptop, into which a normal pilot plug may be inserted. This allows simulation of a full use of the system without boarding a vessel.
Serial Device (Only SEAiq Pilot) : Specify name of device to use. You can enter here or choose from the list of available devices.
On Windows, this is normally a COM port, such as COM8. You can find this by pairing with your Bluetooth device. Press the Bluetooth symbol on your toolbar. Choose Open Settings and COM Ports. Look for the Bluetooth device you are using and the COM port for Outgoing data. For COM ports higher than 9, COMXX is automatically translated into the \\.\COMXX format.
Serial Devices (Only SEAiq Pilot) : List of serial devices (including Bluetooth).
Baud Rate (Only SEAiq Pilot) : Baud rate for a serial port, typically USB. AIS pilot plugs use 9600 (the default used for this). Bluetooth devices normally use 19200.
Typical baud values are 4800, 9600, 14400, 19200, and 38400. Other possible values include 110, 300, 600, 1200, 2400, 56000, 57600, 115200, 128000, and 256000.
Status (Only SEAiq Pilot) : Current status.

AIS

Show AIS Tracks (Only SEAiq Pilot) : When enabled, tracks are shown for AIS targets so you can see the recent path of each vessel. Important caveats are listed below:
- Tracks are kept for 60 minutes.
- New track segments are only kept when the vessel has moved at least 0.05NM or it has been 6 minutes since the last segment was added.
- To reduce clutter, tracks are only shown for vessels that are currently on or near the area of display.
- To limit clutter, tracks are only shown if at most 150 vessels are on the display.
- For targets from AIS Sharing, the tracks may be reset if the target leaves the screen.
- When playing back recordings, tracks may be reset when using the slider to jump position forward or backward.
- There are no provisions for saving or loading AIS target tracks. You can make an NMEA/AIS recording and then play it back.
- The tracks position used for vessels is their AIS antenna position.
- Occasionally the data used for vessels may change between different sources, such as when a vessel comes within range of your vessel's AIS. In these cases, the amount of tracks information and specific data may also change.
Prefer AIS Met Data from Internet (Only SEAiq Pilot) : When enabled, meteorological AIS data from the internet is preferred over that from a PPU. This can be helpful in situations where AIS VHF connection is not very reliable.
AIS Lost Time (Only SEAiq Pilot) : Number of minutes of inactivity before an AIS target is marked as lost.
AIS Forget Time (Only SEAiq Pilot) : Number of minutes of inactivity before an AIS target is discarded.
Interrogate Closest AIS Target (Only SEAiq Pilot) : When enabled, the closest AIS target (up to 5nm) will be interrogated every second.
This feature should be used with care. It requires a PPU and AIS system that allows transmission of AIS Interrogation requests (message type 15). It requests class A position reports (AIS message type 3) from the vessels.
Important: On some vessels, this function has caused the ship's system to display a Transmit Error.
Important: You should normally turn this off when not in use as it makes heavy use of AIS bandwidth.

QR Code

Create QR Code for Settings (Only SEAiq Pilot) : Create a QR code image for current NMEA/AIS settings. A label can be printed for a device, which in turn is used to configure SEAiq settings for that device. The QR code reading function requires SEAiq version 5.4.11 or later and only runs on IOS. Also, note that tablet WiFi settings must be changed separately from this.
QR Code WiFi Network (Only SEAiq Pilot) : SSID of WiFi Network to include in QR Code. The resulting QR Code will attempt to join the named WiFi network.
QR Code WiFi Password (Only SEAiq Pilot) : Password of WiFi Network to include in QR Code. The resulting QR Code will attempt to join the WiFi network with the given passphrase. Important: only WPA networks are supported (not WEP).

Other

Detect External Simulator (Only SEAiq Pilot) : When enabled, operation in an external simulator (such as a full-bridge simulator) is monitored. A full-bridge simulator is detected when the SSID of the WiFi network begins with the text "SIM Bridge". In this case, AIS Sharing is disabled. This is done to prevent sharing of Own-Ship to other vessels as a Hi-Res target. This feature has no relationship to the built-in Simulator function.
Additionally, a WiFi network SSID of "SIM BridgeDisableAISSharing" will disable AIS Sharing even if this setting is disabled. The expectation is that this SSID will never be used except intentionally by certain users.