Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1975-05-05
1976-12-14
Tubbesing, T.H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 172R, G01S 956
Patent
active
039978982
ABSTRACT:
This relates to a channeling scheme for introducing a new service in the TACAN frequency band which can operate independently of the conventional TACAN system or in conjunction with it. Specifically, the new service is that of providing precision DME for a microwave landing system and for allowing existing TACAN airborne sets, when equipped with an adapter, to utilize new MLS ground beacons. In one channeling scheme, interrogations occur in frequency bands adjacent the standard TACAN interrogation band, and ground transmissions occur in frequency bands presently occupied by X mode reply signals. In a second scheme, which contemplates the use of standard airborne equipment provided with an adapter, interrogations occur within the conventional TACAN interrogation band, and replies occur in the bands now occupied by X mode reply signals.
REFERENCES:
patent: 3076190 (1963-01-01), Shames et al.
patent: 3825929 (1974-07-01), Toman
Ingrassia Vincent
International Telephone and Telegraph Corporation
O'Halloran John T.
Tubbesing T.H.
Van Der Sluys Peter C.
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