Tests with Coaxial TACAN Antenna at Doppler Very High Frequency Omnirange (VOR).
Final rept. Apr-Oct 74,
NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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The report describes the performance of Doppler very high frequency omnirange DVOR systems with and without a coaxially located tactical air navigation TACAN antenna. Flight tests were conducted to determine double-sideband DVOR DSDVOR and single-sideband DVOR SSDVOR system performance for each condition. Test results show that the error of a SSDVOR station will increase plus or minus 1.8 degrees when a TACAN antenna is coaxially located. The DSDVOR system error will increase an average of plus or minus 0.25 degrees with the installation of a TACAN antenna coaxially. It is recommended that the TACAN antenna be considered for coaxial location when DSDVOR is used.
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