MIL-STD-1605 Procedures For Conducting A Shipboard Electromagnetic Interference Emi Survey Surface ShipThis standard provides the procedures for demonstrating compliance with the intra and inter-system electromagnetic compatibility EMC, hull-generated Intermodulation Interference IMI, and electrical bonding requirements of MIL-STD-464 for naval surface ships. In addition, an EMI survey is required for new construction ships and ships receiving overhauls or other major repair work that changes the ships electromagnetic configuration.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16

MIL-STD-1605A(SH)

FIGURE 1. Phase I test limit for topside ambient RF environment.

5.1.1 Phase I preliminary examination. Prior to executing the Phase I measurements an examination shall confirm that:

a. Bonding, grounding, and other techniques for EMC and safety have been accomplished in accordance with

MIL-STD-1310 and/or other contractual documents;

b. Applicable multi-couplers, filters, and blankers are installed and operating; and

c. There are no missing or visibly defective electronic equipments or broken or missing antennas/transmission lines.

Deficiencies discovered during the examination shall be corrected prior to starting Phase I measurement testing.

5.1.2 RF sensor-type equipments requiring testing. RF sensor-type equipments are any device that senses or receives the electromagnetic spectrum from 2 MHz to 460 MHz topside (MF, HF, VHF, UHF) and 2 MHz to 6 GHz below deck, which includes receivers in fixed and mobile devices below deck, mobile wireless systems, Radio Frequency Identification Devices (RFID) readers/transceivers (except those attached to ordnance), wireless data links, all of which may be susceptible to unintentional RF emissions from electrical/electronic equipment and systems. For ships undergoing a modernization/overhaul, only those sensors that may be impacted by changes affected during the modernization/overhaul need be measured.