2 1 REVISION HISTORY AUTH - REV A DATE 1/17/2008 DESCRIPTION INITIAL RELEASE 1/4-20 UNC - 1B B B FLANGE PER ORDER (COVER SHOWN) n2.00 4.01 4.96 2.64 3.11 8.00 MODEL SPECIFICATIONS A MECHANICAL MODEL NUMBER: MATERIAL: FINISH: FLANGES: 75-442-X/BR 6061/T6 ALUM. UNIQUE CORROSION RESISTANT 316 STAINLESS STEEL EPOXY COATING. COVER FLANGE (-6) IS STANDARD, OTHER TYPES ARE AVAILABLE, BUT LENGTH MAY CHANGE. A THIRD ANGLE PROJECTION: APPROVALS UNLESS OTHERWISE NOTED, DIMENSIONS ARE IN INCHES, TOLERANCES ARE: FRACTIONS: ±1/64 ELECTRICAL FREQ. RANGE: GAIN: 10.0 - 15.0 GHz 20dB 2 DRAWN ADVANCED TECHNICAL MATERIALS, INC. TEL: (631) 289-0363 FAX: (631) 289-0358 DATE www.atmmicrowave.com M.R. CHKD. THE INFORMATION IN THIS DRAWING IS PROPRIETARY AND SHALL NOT BE USED OR DISCLOSED WITHOUT THE PRIOR WRITTEN CONSENT OF ATM, INC. DO NOT SCALE DWG. WR75 20dB HORN ANGLES: ±1/2° BASIC DIMENSION DECIMALS 2 PLACE 3 PLACE APRVD. UNDER 6" `.02 `.005 MATERIAL 6" - 12" `.03 `.010 TREATMENT IRIDITE OVER 12" `.06 `.015 FINISH W/ MOUNT ALUM ATM GRAY SIZE A MODEL # CAGE CODE ATM DWG # 0R8N4 75-442-X/BR 1 7913 REVISION A SHEET 1