Russia Has 1 'Weapon' NATO Can't Easily Defeat: GPS Jamming - National Interest | RNTF

Lensatic compass and protractor. You're welcome.

The Irony is, we HAD a system, one with off the shelf components and in which we had many years of experience. Terrestrially based, with high power transmitters, it would have been extremely difficult to block. Despite have just completed upgrades to the tune of several hundred million over 5 or 6 years, the Obama Administration made the decision in 2008 to cut funding, declaring it obsolete. Many of you have probably used the system at one time or another, since LORAN C was run world wide by the USCG. The upgrades done in the early 2000s were preparatory to transitioning to eLORAN an enhanced system using differential signals to provide time and position data meeting GPS specifications. The equipment is still available off the shelf, in fact Korea, Great Britain and maybe some other countries by now, have deployed their own systems. Sadly because no money was allocated for preservation and security, most of the stations are now in very poor condition, some looted and now in ruins, so hundreds of thousands will have to be spent again.

We better start working harder on overcoming this.