SDASM Archives
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Robinson_0004 Nelson Robinson Collection Image uploaded yesterday
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26_0026408 Rohr Collection Image

from SDASM Archives
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Chuck Walla said:
Original BART system used a General Electric VHF Railroad Radio Service system R160.410 110.9 T161.505 110.9. Slotted Heliax coaxial cable "Radiax" was strung along all underground sections. It leaked signal that allowed communication with trains underground. You can see the Radiax and hangers as a line along the track and above the riders' heads.
2019 photo:
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🇺🇸 Other members from USA
Schlesinger Library on the History of Women in America
🇺🇸University of Washington Libraries Digital Collections
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UC Berkeley, Department of Geography
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