000			00348pam a2200145a 44500
082			_aBTS _bMONO 1921
100			_aRoetken,A A,Smith,K D
245	1		_aTD-2 MICROWAVE RADIO RELAY SYSTEM
260			_a _b _c1951
300			_a37
500			_aBound With Bts Mono 1900-20,1922-29
700			_aFriis,R W
964			_gCIRC
997			_aTR19695 C
999			_c403415 _d403415