By: Cambridge Aero Instruments  09-12-2011

At Cambridge Aero, service to our customers is one of the most important aspects of our business. We make every effort possible to assure that the products you purchase from Cambridge Aero will function as designed. The confidence we have in our products is reflected in our warranty: all Cambridge Aero products are warranted to the original owner to be free of defects in materials and workmanship for a period of two years from the date of purchase.

We listen to our customers and dealers. The features you see in our firmware revisions are a direct result of feedback obtained from the pilots who use our products.

Please Note: Factory repair and service is available only for Cambridge Aero equipment which is currently in production.  For older instruments, see below.

The factory rate for repair of products which are out of warranty is $75.00 (U.S.) per hour with a one hour minimum. Repairs made by the Cambridge Aero Factory Service Department carry a one year warranty.

When returning instruments to Cambridge Aero for service:

Please Note: Please do not e-mail us with attached files unless specifically requested to do so, as most problems can be analyzed without viewing your flight file.

Before shipping your instrument back for service, please contact us by telephone at 901-382-1352 for instructions as to the correct service address and to provide additional information we may require.


While it is our intent to provide support for our products, we are finding it increasingly time consuming to provide support with regard to the basics of computer operation. It is the responsibility of the individual user to understand the operating system as well as the peripheral hardware associated with his or her computer. Many problems can be solved by customers using the on screen help menus or one of the many after market books on computer operation. Go to Microsoft's website and spend some time reading the FAQs (Frequently Asked Questions). Open the user's manual that came with your computer and read it. Visit the website of your computer manufacturer. 

We are here to help you get the most out of our products, but ask you to please have an  understanding of the operation of your computer before calling us. Below are some websites that you may find helpful.

Suggested sites:

   Microsoft Support Page.
  Windows CE Information.
  Windows Operating Systems.
   Link to tutorial on basic computer operation.
  Support for Compaq Palm-PCs.

You may also contact Compaq Technical Support at 800.652.6672

Out-of-Production Instruments:

All 300 Series instruments are supported and serviced at the factory and by our service dealers.

Cambridge instruments which are out of current production are no longer supported at the factory. Service and support for the following instruments may be requested by contacting , the Cambridge Aero Service Dealer in the United Kingdom:M-NAV
Mark IV Vario
If you are in need of a users manual or instruction sheet for one of the above instruments please go to Dickie Feakes's .  In addition, Dickie is available for service and support in Europe of the L-NAV, S-NAV, and GPS-NAV models 10, 20, and 25.

Gary Kammerer, who until March, 2008, handled servicing and technical support for Cambridge at the factory, now provides support for the CAVII Variometer, L-NAV, S-NAV, and GPS-NAV models 10, 20, and 25 via the following link:

The information in this article was current at 06 Dec 2011

Contact Cambridge Aero Instruments

Email - none provided

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