Sailor 4300 (Iridium Certus ). Lasting quality. Maritime Legacy. Low cost. Redefining Iridium L-band. Check out this special offer from Iridium: Double Data and Free Equipment Further details here!  ( offer ends December 2021 )

Built for Iridium Certus SM, the new SAILOR 4300 L-band leverages decades of L-band expertise to deliver dependable connectivity with higher performance, low costs and truly global coverage.

The new SAILOR 4300 L-band antenna is the pinnacle of L-band terminal design, representing over 20 years of unmatched maritime L-band expertise and quality.

SAILOR 4300 L-band is the first in Cobham’s Iridium Certus Connected range of terminals. It is the perfect choice as either a high-performance, stand-alone terminal to upgrade your vessel communications, or as a dependable backup solution for your existing VSAT system.

Through Iridium NEXT, ( the satellite network ), SAILOR 4300 L-band enables fast internet speeds suitable for both data-heavy applications and everyday usage. The terminal minimizes total cost of ownership with low hardware costs and no scheduled service requirements, and is fully supported through our Global Service Network.

Brochure           Infographic    Take a Look at the equipment using our 3-dimensional App (just download the app using the Q-codes and print off the sheet so you can look at it in 3D!)

  • SAILOR Quality
  • Multiple satellite tracking with no moving parts
  • Easy configuration via web and built-in API for 3rd party integration
  • Single cable (ADU/BDU – 75m coax) for easy installation
  • Bulkhead and 19” rackmount configuration 3 voice lines and 352/176 data speeds (upgradeable to 704/176)
  • Antenna Dimensions: 38 cm (dia) x 23 cm (h)
  • Antenna Weight: 7 kg
  • BDU to ADU Antenna Cable: One cable connection to BDU
  • Standard Data Rate: Iridium Certus 300 – Up to 176/352 kbps, Iridium Certus 700 – Up to 176/704 Kbps
  • Iridium is targeting the fourth Quarter of 2019 release of 704 Kbps.
  • Services Data: yes Email: yes Broadband: yes Voice: yes

Included in the system:-

  • ADU
  • BDU
  • 25m antenna cable
  • 1m Power cable (10-32V DC input)
  • CD-ROM with e-manual
  • Printed Quick Guide


Sailor 4300 Iridium Certus Airtime Plans (please just email us detailing your requirements)

User Manual  Install Guide (brief overview) Installation Manual Mast Mount Kit (install guide) SIP telephony via mobile device (Application Note )

Firmware History: 1.03 zipped1.04 zipped1.05 zipped; 1.06 zipped; Latest Firmware (1.08 zipped)

N.B. If a terminal is upgraded from v1.03 to v1.08 without doing the other updates, all that is installed is the bug fixes that came with v1.08, it doesn’t include ones that came as part of those previous updates, therefore problems can be wide ranging in terms of terminal failure, error messages etc which would otherwise be fixed by those updates.

The diagnostic logs from the terminal will reveal if all updates have been installed or only some, if it is shown only some have been installed, recommended action would be to roll the firmware back to v1.03 then install all updates mentioned above.