MODEL AT1000A ANTENNA 150 - 1000 MHz 160 School House Road, Souderton, PA 18964-9990 USA Phone 215-723-8181*FAX 215-723-5688 The Model AT1000A is a wide band, high-gain, log periodic antenna with gain capabilities of 7.5 dB over isotropic (average) and gain flatness of 1 dB. The Model AT1000A supplies the constant, high-intensity fields necessary for RFI/EMI field testing within and beyond the confines of a shielded room. It can also be used as a receiving antenna for RF emissions testing. The Model AT1000A is compact and lightweight for ready mobility, yet is built tough for the extra demands of outdoor use and easily mounts on a flat surface or tripod. The Model AT1000A is intended for use with the 2000W1000 and other high power amplifiers. Field strength generated by the Model AT1000A will be identical to those shown by the curves for the Model AT1000. SPECIFICATIONS MODEL AT1000A FREQUENCY RANGE................................................................................. 150 - 1000 MHz POWER INPUT (maximum)........................................................................ See Graph POWER GAIN (over isotropic) ................................................................... 6.5 dB minimum 7.5 dB average GAIN FLATNESS ......................................................................................... 1.0 dB IMPEDANCE................................................................................................ 50 ohms nominal VSWR Maximum............................................................................................ 1.8:1 Average............................................................................................... 1.5:1 BEAM WIDTH (average) E Plane ............................................................................................... 60 H Plane............................................................................................... 105 FRONT TO BACK RATIO (minimum)........................................................ 15 dB CONNECTOR............................................................................................... See Model Configuration; SIZE (WxHxD )............................................................................................. 102.0 x 13.0 x 91.0 cm 40.0 x 5.1 x 36.0 in WEIGHT........................................................................................................ 7.0 kg (15 lb) MOUNTING PROVISIONS ......................................................................... Wall bracket included. May also be tripod mounted in two perpendicular planes using optional tripod. MODEL CONFIGURATIONS MODEL NUMBER CONNECTOR POWER INPUT AT1000A 1 5/8 EIA flange See Graph AT1000AM1 7-16 DIN female See Graph REV030500 Field strength have been measured in free-space conditions. Individual shielded rooms, amplifiers, and test-system conditions will influence performance. Field strength also varies with frequency and positions of antenna and EUT in non-anechoic testing environments.