Development Test II (Service Test Phase, Arctic Environment) of Mast AB-621 ( )/G.
Mast AB-621 was developed as part of the AN/GRC-67 Radio Terminal and AN/GRC-68 Radio Repeater. It was type classified Std-A in Augugst 1964, and is used with the AN/GRC-144 Radio Set in the Army Tactical COMMUNICATIONS High Capacity Subsystem. The AB-621 is a quickly erectable, uniformly sectionali...
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ftdtic:AD0920462 2023-05-15T14:43:54+02:00 Development Test II (Service Test Phase, Arctic Environment) of Mast AB-621 ( )/G. Barnes, John W., Jr ARMY ARCTIC TEST CENTER FORT GREELY AK 1974-05-15 text/html http://www.dtic.mil/docs/citations/AD0920462 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0920462 en eng http://www.dtic.mil/docs/citations/AD0920462 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Electrical and Electronic Equipment Structural Engineering and Building Technology Radio Communications (*ANTENNA MASTS TEST METHODS) (*RADIO EQUIPMENT PARABOLIC ANTENNAS) TACTICAL COMMUNICATIONS MECHANICAL CABLES COLD WEATHER TESTS WINTERIZATION KITS ICE SNOW WIND RELIABILITY SAFETY TEMPERATURE HUMAN FACTORS ENGINEERING ARCTIC REGIONS Arctic tests AN/GRC-67 AN/GRC-68 AN/GRC-144 Guy wires Text 1974 ftdtic 2016-02-19T07:20:36Z Mast AB-621 was developed as part of the AN/GRC-67 Radio Terminal and AN/GRC-68 Radio Repeater. It was type classified Std-A in Augugst 1964, and is used with the AN/GRC-144 Radio Set in the Army Tactical COMMUNICATIONS High Capacity Subsystem. The AB-621 is a quickly erectable, uniformly sectionalized, guyed mast which can be erected to heights of up to 50 feet. It supports a 4.5 foot hornfed parabolic reflector antenna. Previous arctic testing of similar masts (AB-577 and AB-952) revealed a safety deficiency in that the accumulation of frost, ice and snow on the exposed portions of the masts prohibited safe disassembly. To preclude the occurrence of similar problems during arctic service testing of the Mast AB-621, a winterization kit for the mast was developed. The winterization kit consists of protective mast section covers, guy snubber covers, rubber shrouds to protect the launcher assembly, an expendable plywood base and the necessary auxiliary tools needed to install the kit on the mast. Text Arctic Defense Technical Information Center: DTIC Technical Reports database Arctic |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Electrical and Electronic Equipment Structural Engineering and Building Technology Radio Communications (*ANTENNA MASTS TEST METHODS) (*RADIO EQUIPMENT PARABOLIC ANTENNAS) TACTICAL COMMUNICATIONS MECHANICAL CABLES COLD WEATHER TESTS WINTERIZATION KITS ICE SNOW WIND RELIABILITY SAFETY TEMPERATURE HUMAN FACTORS ENGINEERING ARCTIC REGIONS Arctic tests AN/GRC-67 AN/GRC-68 AN/GRC-144 Guy wires |
spellingShingle |
Electrical and Electronic Equipment Structural Engineering and Building Technology Radio Communications (*ANTENNA MASTS TEST METHODS) (*RADIO EQUIPMENT PARABOLIC ANTENNAS) TACTICAL COMMUNICATIONS MECHANICAL CABLES COLD WEATHER TESTS WINTERIZATION KITS ICE SNOW WIND RELIABILITY SAFETY TEMPERATURE HUMAN FACTORS ENGINEERING ARCTIC REGIONS Arctic tests AN/GRC-67 AN/GRC-68 AN/GRC-144 Guy wires Barnes, John W., Jr Development Test II (Service Test Phase, Arctic Environment) of Mast AB-621 ( )/G. |
topic_facet |
Electrical and Electronic Equipment Structural Engineering and Building Technology Radio Communications (*ANTENNA MASTS TEST METHODS) (*RADIO EQUIPMENT PARABOLIC ANTENNAS) TACTICAL COMMUNICATIONS MECHANICAL CABLES COLD WEATHER TESTS WINTERIZATION KITS ICE SNOW WIND RELIABILITY SAFETY TEMPERATURE HUMAN FACTORS ENGINEERING ARCTIC REGIONS Arctic tests AN/GRC-67 AN/GRC-68 AN/GRC-144 Guy wires |
description |
Mast AB-621 was developed as part of the AN/GRC-67 Radio Terminal and AN/GRC-68 Radio Repeater. It was type classified Std-A in Augugst 1964, and is used with the AN/GRC-144 Radio Set in the Army Tactical COMMUNICATIONS High Capacity Subsystem. The AB-621 is a quickly erectable, uniformly sectionalized, guyed mast which can be erected to heights of up to 50 feet. It supports a 4.5 foot hornfed parabolic reflector antenna. Previous arctic testing of similar masts (AB-577 and AB-952) revealed a safety deficiency in that the accumulation of frost, ice and snow on the exposed portions of the masts prohibited safe disassembly. To preclude the occurrence of similar problems during arctic service testing of the Mast AB-621, a winterization kit for the mast was developed. The winterization kit consists of protective mast section covers, guy snubber covers, rubber shrouds to protect the launcher assembly, an expendable plywood base and the necessary auxiliary tools needed to install the kit on the mast. |
author2 |
ARMY ARCTIC TEST CENTER FORT GREELY AK |
format |
Text |
author |
Barnes, John W., Jr |
author_facet |
Barnes, John W., Jr |
author_sort |
Barnes, John W., Jr |
title |
Development Test II (Service Test Phase, Arctic Environment) of Mast AB-621 ( )/G. |
title_short |
Development Test II (Service Test Phase, Arctic Environment) of Mast AB-621 ( )/G. |
title_full |
Development Test II (Service Test Phase, Arctic Environment) of Mast AB-621 ( )/G. |
title_fullStr |
Development Test II (Service Test Phase, Arctic Environment) of Mast AB-621 ( )/G. |
title_full_unstemmed |
Development Test II (Service Test Phase, Arctic Environment) of Mast AB-621 ( )/G. |
title_sort |
development test ii (service test phase, arctic environment) of mast ab-621 ( )/g. |
publishDate |
1974 |
url |
http://www.dtic.mil/docs/citations/AD0920462 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0920462 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0920462 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766315484849897472 |