vhf

29 photos tagged vhf, from 1 member of Flickr Commons.

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26_0026408 Rohr Collection Image

from SDASM Archives

  • 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:

23_0066882 Convair Negative Image

from SDASM Archives

  • Chuck Walla said:
    VHF = very high frequency, 108-136 MHz
    VOR = VHF Omnidirectional Range

    Left VOR dial is for navigation. Pilot or first officer select VOR frequency (118.8 MHz here) based on FAA charts. VOR equipment shows a flag indicating the aircraft is headed toward or away from the VOR point on the map/chart.

    VHF is for cooperative voice communication with air traffic control, airport towers, or other aircraft.

26_0020746 Rohr Collection Image

from SDASM Archives

  • Chuck Walla said:
    This is Mr. Journey's office.