Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing GPS Speedo recommendations?

I was also involved in the early days of GPS development testing, my old company was the earth science division of Texas Instruments and we travelled all over the world ( at sea) so we were good test beds for GPS. TI was one of the companies asked by the US Gov to develop the GPS receivers. When the first reciver came onboard it was approx 2ft x 2ft x 1 ft with a cable and hand held key pad interface the size of a house brick.. The total number of sats at that time in earth orbit were 4, so we could only use the GPS for the limited times in the day when 2 or 3 sats were in angle..We also had what was termed at the time as an Atomic Clock ( now known as a cesium standard ) using the AT we could still navigate when we went from a 3 way fix with 3 sats to only 2 sats and the atomic clock.. Upto the development of GPS our navigation was undertaken by radio navigation, systems such as Loran, Pulse 8 ,ARGO, mini-ranger etc.. or by using single spot transit satellite fixes.. When we first used GPS for the first time it was such a step forward.. The early development of the GPS was interesting, I had a direct number to white sands missile base in the USA to see if the satellites were stable when we wanted to use them, as in the early days of development the sats were often manouvered for optimum positioning etc. Those were happy days..