What is StarFire Over IP (SFoIP)?
This feature allows users to receive StarFire corrections over the Internet, giving them access to the same reliable five centimeter global positioning accuracy without the need for a base station. Users can access StarFire corrections in environments where StarFire satellite delivery might be unavailable, such as deep urban canyons or very high latitude locations.Furthermore, the automatic failover capabilities allow the user to switch seamlessly from satellite to internet delivery of StarFire service, thereby maintaining maximum uptime in otherwise challenging locations.
What systems can use StarFire Over IP?
- A LAND-PAK System requires either NavCom FieldGenius v188.8.131.52 or later, or NavCom SurvCE software (available later in 2013 with support for this feature)
- LAND-PAK Systems delivered prior to February 2013 will require software and software options updates
- SF-3050 products operating on software version 3.2.11 or later are capable of using StarFire Over IP with the purchase of appropriate options and licenses
- Availability on Sapphire-integrated systems requires the integrator to provide an IP interface with Ntrip 2.0 (or later) protocol with the purchase of appropriate options and licenses and the means to access the service is determined by the integrator’s user interface program
- Usage of SFoIP for the SF-3040 receiver requires 3rd party developed controller software to support the feature in addition to the receiver operating on software version 3.2.11 or later with the purchase of appropriate options and licenses
How does StarFire over IP work?
StarFire corrections function over IP in exactly the same way as in traditional StarFire correction satellite delivery.
The receiver (SF-3050) or data collector (for LAND-PAK with Nautiz X7 and NavCom supplied data collection software) acts as an Ntrip client and initiates an Ntrip session including automatic authentication (no user parameters required).
- Requires the unit be licensed for StarFire operation
- Requires the unit to be optioned for StarFire over IP and StarFire Enabled
- Ntrip mountpoint and IP address is only provided to customers who are activated for this service. This information is provided at the time the software option is provided to the customer or from Customer Support
- NavCom FieldGenius and NavCom SurvCE (available later in 2013 with support for this feature) are preconfigured to connect to the correct IP address
- The method that the GNSS receiver or data collector is connected to the internet is the customer’s responsibility. The connection can be made through a 3G modem, VSAT, Iridium, direct connection to the internet, etc. The connection can be made using StarUtil 3000 and the command line interface (Input Terminal). An Application Note is available to detail the mechanics of making the connection.
What are the automatic failover capabilities in SFoIP?
The automatic failover capabilities in StarFire over IP allow the user to switch seamlessly from satellite to internet delivery of StarFire service. This feature is built-in to our NavCom FieldGenius and NavCom SurvCE software, allowing LAND-PAK users to seamlessly switch between StarFire corrections delivered via satellite to internet delivery when satellite delivery is interrupted. This feature, however, is not built-in to our SF-3050, SF-3040, and Sapphire board products and requires development of third party integrators to achieve the same functionality.
- Packet size is currently at 787Bytes max with GPS and GLONASS corrections
- The service is offered with three different delivery modes to help customers manage their data costs: 1-second (streaming); 15-seconds; 60-seconds
- Packet size is the same whatever the streaming rate selected
- Convergence time and accuracy is the same for all delivery rates, whether over the air or via IP
How do I get StarFire Over IP?
To be licensed for StarFire Over IP
- Receiver needs StarFire over IP and StarFire Enable options
- The receiver needs an active StarFire license. The standard receiver StarFire license authenticates both correction delivery services
Is there technical guidance available?
An Application Note is available to detail the mechanics of making the connection.
Is Over the Air (OTA) StarFire license renewal available over SFoIP?
Yes, delivery will follow the same process as outlined in the manual for OTA StarFire license renewal:
- The customer selects the date and time in GMT for the Over the Air broadcast of the StarFire License.
- The scheduled broadcast must occur at least 3 business days after a valid P.O. is received by NavCom Sales.
- Specify broadcast date and time in GMT on the P.O.
- NavCom confirms the date & time of broadcast via email.
About Over the Air Broadcast
- The StarFire license is broadcast at the scheduled time and 5 minutes later as a backup.
- To ensure reception, turn on the receiver before the specified broadcast time. Do not turn off the receiver until verifying that the license is saved.
- The receiver must be tracking StarFire satellites at the broadcast times, though the receiver is not required to be operating in StarFire mode during the broadcasts.
I purchased a LAND-PAK last year, how do I get the SFoIP option?