201301BorderRangesQld 006

Gradys Gap

Folder: Railway Locations and Infrastructure.

16 Jan 2013

181 visits

201301BorderRangesQld 006

Border Tunnel 4 showing hut and mast. Sometime since construction the landline link has been replaced with a radio circuit. The UHF yagi antenna, I guess, is using the fixed point service variant of the Telstra 3G mobile system.

16 Jan 2013

40 visits

201301BorderRangesQld 008

Border Tunnel 4 Train Radio site. January 2013.

16 Jan 2013

184 visits

201301BorderRangesQld 010

Border Tunnel 4 showing hut, mast and feed to the tunnel's leaky co-ax.

16 Jan 2013

171 visits

201301BorderRangesQld 011

Border Tunnel 4 showing the feed to the tunnel's leaky co-ax.

16 Jan 2013

1 favorite

78 visits

201301BorderRangesQld 012

Apparently a radio link has replaced the original landline for comms back to Train Control. January 2013.