NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Don't put away your sextants yet!
From: Lu Abel
Date: 2011 Feb 7, 10:04 -0800
From: Lu Abel
Date: 2011 Feb 7, 10:04 -0800
As long time list members know, I think celestial nav is a wonderful but antique technique and that any sane navigator these days would use GPS has his/her primary positioning technique.
Well, maybe not -- here's an article about the US approving up ro 40,000 (!) high-powered transmitters in the L1 band (the frequency used by civilian GPS signals) for a new commercial service which demonstrably interfere with the reception of GPS signals at distances of up to 15 miles from these transmitters.
Perhaps less of a problem for mariners, but what about aircraft navigation systems (which the US Federal Aviation Administration is pushing hard)?
http://tinyurl.com/4w87vmx
Well, maybe not -- here's an article about the US approving up ro 40,000 (!) high-powered transmitters in the L1 band (the frequency used by civilian GPS signals) for a new commercial service which demonstrably interfere with the reception of GPS signals at distances of up to 15 miles from these transmitters.
Perhaps less of a problem for mariners, but what about aircraft navigation systems (which the US Federal Aviation Administration is pushing hard)?
http://tinyurl.com/4w87vmx
