A Simplified GPS-Derived Frequency Standard

14 Sep/Oct 2006242 Robert-Martial StGatineau, Qu bec J9J Simplified GPS-DerivedFrequency StandardBertrand Zauhar, VE2 ZAZHere is a simple and modern approach to a 10-MHz many reasons, an accurate frequencystandard at an Amateur Radio stationis desirable. For weak-signal operationsuch as EME (moonbounce) at microwavefrequencies, you must be transmitting and lis-tening exactly at the right Frequency ; other-wise the narrow receive filters used will makeyou miss that weak signal. With such a setup,a 10-MHz Frequency reference feeds the fre-quency synthesizer that generates the radio soperating Frequency . An accurate 10-MHzreference is also useful for test equipmentadjustment. With an accurate Standard , youcan put Frequency counters and signal gen-erators on advent of the Global Positioning Sys-tem (GPS) has allowed a Simplified approachto time and Frequency accuracy.

Sep/Oct 2006 17 Figure 3 — Circuit board pattern for the GPS-derived frequency standard. Figure 4 — FLL acquisition and control cycle. and provides standard status text strings that

Loading..

Tags:

  Standards, Frequency, Simplified, Derived, Simplified gps derived frequency standard, Derived frequency standard

Information