OPERATIONAL EVALUATION OF RADIO TRANSMITTER SET AN/MRT-4(XL-1). EW SYSTEMS TEST, USAEPG-3, PHASE II, EQUIPMENT TEST AND EVALUATION.
Abstract
Final tests for the evaluation of radio trans mitter set AN/MRT-4(XL-1), operating in the frequency range of 75 to 420 mc/s with a realizable power output of 750 watts, show that the usefulness of the equipment is limited. It can be used effectively to predetonate fuzes of 8-inch projectiles at a range of 2,500 yards when the angle of fire is low and 1,500 yards when the angle of fire is high. When used to predetonate low-angle 105-mm fire, its effective range is 5,300 yards; when used against high-angle 105-mm fire, 2,600 yards. These ranges are not consistently maintained because gaps are present in the frequency spectrum of the transmission of the jammer. A test was conducted to determine the effect of the AN/MRT-4(XL-1) operation on a-m communications. The interference with friendly voice communications from the AN/MRT-4(XL-1) in sweep operation was negligible but there was considerable interference when the AN/MRT-4 (XL-1) was operated in coincidence with the communication channel. Also see AD-311 204. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1957
- Accession Number
- AD0311203