SNC_Receivers_Synopsis_Att_1_-_Receiver_Design_Requirements_for_Environmental_and_EMI.doc

Receiver Design Requirements for Environmental and Electromagnetic Interference (EMI)/Electromagnetic Compatibility (EMC) 1)Temperature

The temperature requirements for the Receiver are:

Operating: -40(C to +65(C (-40(F to 149(F)

Non-operating: -62(C to +71(C (-80(F to 160(F)

The Receiver shall meet the temperature requirements of MIL-STD-810F Methods 501.4 and 502.4.

1.1.1.1 Solar Load

The Receiver shall be capable of meeting the solar load requirements of MIL-STD-810F, method 505.4, Procedure I, Cycle A1.

1.1.1.2 Shock

The Receiver shall be capable of meeting the shock requirements of MIL-S-901D, Grade A, Class I, Type B.

1.1.1.3 Vibration

The Receiver shall be capable of meeting the Type I vibration requirements of MIL-STD-167-1 at a maximum frequency of 25 Hz.

1.1.1.4 Enclosure

The Receiver shall be spraytight in accordance with MIL‑STD-108E.

1.1.1.5 Inclination

The Receiver shall be fully operational for the ship motion and attitude conditions in accordance with DOD-STD-1399, Section 301, for CV type ships.

1.1.1.6 Salt Fog

The Receiver shall be capable of meeting the salt fog tests of MIL-STD-810F, Method 509.4.

1.1.1.7 Humidity

All components comprising the Receiver shall maintain specified performance when subjected to 95 percent relative humidity for both continuous and intermittent periods, including conditions wherein condensation takes place in and on the equipment in the form of both water and frost as defined in Mil-HDBK- 2036 and MIL-STD-810F

1.1.1.8 Fungus

All components comprising the Receiver shall be capable of meeting the fungal growth tests of MIL-STD-810F, Method 508.

1.1.1.9 Noise

1.1.1.9.1 Airborne Noise

The Receiver shall be in accordance with Grade D equipment of MIL-STD-740-1.

1.1.1.9.2 Structureborne Noise

The Receiver shall be in accordance with Type III equipment of MIL-STD-740-2.

1.1.1.10 Sand and Dust

The Receiver shall be capable of meeting the Sand and Dust tests of MIL-STD-810F, Method 510.4 Procedure I – Blowing Dust.

1.1.1.11 Altitude (nonoperating)

All equipment comprising Receiver shall be suitable for transit in an unpressurized aircraft cargo bay at an altitude of 4.6 kilometers (15,000 ft.).

1.1.1.12 Icing

The Receiver shall be capable of meeting the icing tests of MIL-STD-810F, Method 521.2 with a maximum ice thickness of 37mm (represents marine mast loading).

1.1.1.13 Electromagnetic Environmental Effects (E3)

The Receiver shall operate according to the requirements of this specification when subjected to E3 as defined in MIL-STD-464.

1.1.1.13.1 Electromagnetic Compatibility

The Receiver shall meet the requirements of MIL-STD-461F listed in Table 3‑1.

Table 3‑1. EMI Requirements

1.1.1.13.2 D.C. Magnetic Field

The Receiver shall be compatible with the D.C. Magnetic Field requirements of DOD-STD-1399, Section 070, Part 1.