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Door and door operating mechanism |
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|  MIL-T-85396A(AS)
3.5.1.4 EMCON shrouds. The EMCON shrouds shall be easily attachable
/detachable to/from the electronics assembly. They shall be manufactured i
accordance with Drawing 887AS500 or 1098AS5OO and all documents listed thereon
and shall meet all the requirements of these drawings. The shrouds shall
provide at least 48 dB attenuation of the RF signal radiated from the weapon
during a weapon test. The EMCON shrouds shall be similar to the plain shroud
except they shall have the features specified in 3.5.1.4.1 through 3.5.1.4.4.
3.5.1.4.1 Door and door operating mechanism. The 887AS500 EMCON shroud shall
have a hinged door at the forward end and an opening - closing - locking
mechanism suitable for opening or closing the door and locking it in both the
closed and open positions.
3.5.1.4.2 RFI finger stock. The shrouds shall have fingerstock which shall
contact a mating surface on the antenna of the system under test; the
fingerstock shall be arranged for 360 contact with this surface.
3.5.1.4.3 Strap assembly. The EMCON shrouds shall have a strap and handle
assembly for ho lding the shroud in place on the unit under test and applying
pressure to the shroud/antenna interface to effect an EMI seal.
3.5.1.4.4 Electrical performance. When the shroud is attached to the
electronics assembly and strapped onto the unit under test, the shroud shall
reduce radiation from the test antenna by not less than 48 dB at any (and all)
point(s) in space.
3.5.2 Weight.
Heights shall be not greater than as listed in table 1:
TABLE I.
Test set weights
3.5.3 Content. The test set shall contain the major assemblies as specified
in 3.5.3.1 through 3.5.3.4.
3.5.3.1 Electronics assembly (1098AS13OO). The electronics assembly shall
contain the subassemblies specified in 3.5.3.1.1.
3.5.3.1.1 Chassis assembly (1098AS1302). The chassis assembly shall contain
the printed circuit boards, subcarrier oscillators, voltage controlled
oscillators, RF detector, battery pack, control switches, indicator lamps and
associated cables.
3.5.3.1.2 Case assembly (1098AS34O). The case assembly shall contain the
main case for the electronics assembly, the radiate and receive antennas, RF
cables, radome, RF absorber material, and spare battery pack.
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