Search found 4 matches

by speleoluc
Sun 26 Apr 2020 23:59
Forum: Cave Radio & Electronics
Topic: Contacting SAP's Phil Underwood
Replies: 1
Views: 135

Contacting SAP's Phil Underwood

Hi,

I'd like to get in touch with Phil Underwood regarding the Shetland Attack Pony, but his phil at furbrain dot org dot uk address now fails.

Thanks,


--
Luc Le Blanc
http://www.speleo.qc.ca/Auriga
by speleoluc
Sat 11 Jul 2015 12:03
Forum: Cave Radio & Electronics
Topic: Surface-cave communication while moving underground
Replies: 4
Views: 8308

Re: Surface-cave communication while moving underground

What kind of earth return do SWT need? I guess hand-body-rubber boots don't make a proper contact. Is a trailing wire enough, or must a spike be used? The passage I'm thinking about is water-washed bare rock. Yes, Michael Lake's e-mail address is welcome. -- Luc Le Blanc http://www.speleo.qc.ca/Auriga
by speleoluc
Fri 26 Jun 2015 19:05
Forum: Cave Radio & Electronics
Topic: Surface-cave communication while moving underground
Replies: 4
Views: 8308

Surface-cave communication while moving underground

Following negotiations between local authorities and a private hydroelectric powerhouse operator, at mid-August, throughput will be augmented in order to lower the water level in the artificial reservoir that happens to feed a glacio-tectonic cave that runs under city houses. The drying out of this ...