Initial Product Warranty and Support


The Global Ionospheric Radio Observatory (GIRO) Digisonde® network is rapidly expanding and Lowell Digisonde International, LLC (LDI) who is the sole manufacturer of Digisondes® since 2009, has the expert personnel (engineers and scientists) who can provide these many stations prompt support for Digisonde® operations.

All LDI products carry an initial warranty (for one year following the purchase of the product) that covers all materials and parts at no cost to the client for repair or replacement as required.

All the components of the Products manufactured by LDI shall be free from defects in materials and workmanship.

The initial warranty also provides for remote support and consultation via telephone, e-mail and online communications for one year following the purchase.

Extended Support & Limited Parts Warranty


LDI is pleased to offer an “Extended Warranty” for Digisondes® for which the initial warranty has expired or will expire soon. If your initial warranty has lapsed for less than one year, you may still purchase extended warranty and support provided you prepay the annual fee for the year that elapsed plus the current year.

LDI will provide Support and Consultation services via e-mail/ telephone/online. Our support team will respond to requests within 24 hours after receiving a request for assistance.

LDI’s obligation under this warranty shall be limited to the repair or replacement, at LDI’s option, of any such product components manufactured by LDI which, under normal use and service, become defective; provided, however, that such Product components are returned to LDI, freight prepaid. Replacement components are offered at discounted prices.

Benefits of Extended Warranty:

  1. Minimum disruption and quick problem resolution
  2. Priority telephone, e-mail, and/or online support
  3. Unlimited support requests per year
  4. Free software upgrades
  5. Discounts on replacement of DPS4D components manufactured by LDI
  6. 15% Discount on LDI-sponsored seminars and training classes

Annual Fee for an Extended Warranty:

  • The annual fee for DPS4D extended warranty is $5,100. A 10% discount applies when routinely supplying real time data to the GIRO DIDBase.
  • If the warranty has not been renewed for more than one year, a “reinstatement” fee of $2,000 per lapsed year applies, plus the fee for the current year’s extended warranty & support.
  • On-site services fees during the warranty period: $860/day plus travel costs and per diem.

Charges for Services without Extended Warranty:

  • Remote Engineering and Support Services $150/hour
  • On-site services: $1200/day plus travel costs and per diem
  • Material/component costs at then-current prices

Request Quote

Disclaimer: This warranty does not apply (a) to any Products which have been repaired, worked upon, disassembled or altered by persons not authorized by LDI in such a manner as to injure the stability or reliability of such products, or (b) to any Products which have been subject to misuse, negligence or accident, or (c) to any Products which have not been connected, installed, used or adjusted in accordance with the instructions furnished by LDI, or (d) to any Product which has been damaged by acts of god, or e) with respect to any Product which has had its serial number altered, effaced or removed. This warranty extends only to components of Products manufactured by LDI or UML. Any components of Products which are not manufactured by LDI or UML shall carry only the warranty or warranties of their respective manufacturer.



At your request, LDI will provide one-on-one or group training, at your site or our facilities. Training can be specialized to satisfy your organization’s specific needs.

Additional training and hands-on sessions are scheduled during the bi-annual IGF (International Giro Forum), sponsored by LDI and UML, and is well attended by Digisonde® users from around the Globe. Visit our website often for more details about this important event as they become available.

Engineering & Scientific Research & Consulting

LDI’s scientists and engineers have contracted with numerous organizations and institutions world-wide, to support their research programs and develop new technologies. The U.S. Air Force, DARPA, Lincoln Lab, SwRI, Northrop Grumman, and research agencies in the European Union, South Africa, Brazil, China, and Russia have asked for LDI’s support in radio sounding of Earth’s ionosphere and magnetosphere. New applications were developed, e.g., the real time monitoring of traveling ionospheric disturbances (TIDs) with groundbased DPS4Ds, the real time assimilation of GIRO data in the global International Reference Ionosphere (IRI) model, or the prototype design of topside ionospheric sounders on low-earth-orbit satellites.

Request a Quote