There are many factors that can cause a GPS receiver to present the wrong information to the user, and spoofing is only one of the myriad ways. Environmental effects, atmospheric conditions, electrical/mechanical issues. Something as simple as having the antenna covered and not noticing the "MSF" warning ...
If you use a civilian GPS and it gets spoofed or jammed, you are responsible personally. If you brought your own personal rifle to battle and it jammed and became useless in the heat of combat, what then? If you use a DAGR or PLGR and its spoofed or jammed you are not so much at fault for leading your patrol (just for the sake of an example) off course because those devices have built in measures to guard against that. The limitiations of your own military kit is not totally your fault. By using civilian kit you are taking on full responsibility when you should not. By the way, almost every condition you noted that affects a GPS can also affect a compass.
To imply that they will replace the map and compass (as a primary means of navigation) is not also heretical, but downright foolish.
I am thinking in the future. To say the map and compass will still be our primary means of navigation in 2090 is kind of foolish. The GPS technology we use should be made good enough to replace the map and compass. The GPS system is far more accurate. It will not replace the map and compass though untill we are confident that they will never lose power, nor be jammed or spoofed.Take this example. Does a pilot of an 747 or a CF-18 cross reference his position with a physical map? I am pretty sure they dont, they have redundant systems to make sure the electronic systems are always accurate. This is what the military will eventually develop.
As an aside, a GPS without a map (whether it is old school paper or a hi-tech map embedded in a GPS) is pretty much useless, as it only tells you on earth where you are, based on radio signals.
Why is the map on a DAGR useless? Its an exact scan of our MGRS 1:50,000 maps, geoplotted. You can plot a route on the DAGR using the maps, and using the satellite guided compass you can find your way to a point without using a physical map. Like I said though myself, your limited on battery power, you do need a map to cross reference your position to.
is unsound: too many people think that, due to all the fancy gear that we have now, there is no requirement to use good voice procedure (using reference points or veiled speech rather than using plain speech to give friendly positions). That is based on the assumption that "they" don't have the technology to crack our technology (remember the Germans and their "impenetrable" codes???) or use captured equipment to monitor our comms. A civilian GPS that might be spoofed is no more or no less dangerous (and I would argue far less dangerous in most cases) than someone who insists on sending friendly information in clear under the misguided notion that our "secure" comms won't be monitored or breeched by "them".
The dangerousness of it would all depend on the situation and what value you put into those you lead. A GPS can be spoofed, leading people into an ambush. Guided munitions can be spoofed sending 2000lb bunker busters on civilian targets. Unencoded radio traffic can lead the enemy to one of our patrols.
I think maybe you meant by far less dangerous, was its far less likely to happen? If so, you are still wrong. Its easier to jam a GPS signal since its so weak by the time it hits earth, and its not uncommon. Our TCCCS gear pumps out high wattage and is harder to jam.
If you use a civilian GPS and it gets spoofed or jammed, you are responsible personally. If you brought your own personal rifle to battle and it jammed and became useless in the heat of combat, what then? If you use a DAGR or PLGR and its spoofed or jammed you are not so much at fault for leading your patrol (just for the sake of an example) off course because those devices have built in measures to guard against that. The limitiations of your own military kit is not totally your fault. By using civilian kit you are taking on full responsibility when you should not. By the way, almost every condition you noted that affects a GPS can also affect a compass.
To imply that they will replace the map and compass (as a primary means of navigation) is not also heretical, but downright foolish.
I am thinking in the future. To say the map and compass will still be our primary means of navigation in 2090 is kind of foolish. The GPS technology we use should be made good enough to replace the map and compass. The GPS system is far more accurate. It will not replace the map and compass though untill we are confident that they will never lose power, nor be jammed or spoofed.Take this example. Does a pilot of an 747 or a CF-18 cross reference his position with a physical map? I am pretty sure they dont, they have redundant systems to make sure the electronic systems are always accurate. This is what the military will eventually develop.
As an aside, a GPS without a map (whether it is old school paper or a hi-tech map embedded in a GPS) is pretty much useless, as it only tells you on earth where you are, based on radio signals.
Why is the map on a DAGR useless? Its an exact scan of our MGRS 1:50,000 maps, geoplotted. You can plot a route on the DAGR using the maps, and using the satellite guided compass you can find your way to a point without using a physical map. Like I said though myself, your limited on battery power, you do need a map to cross reference your position to.
is unsound: too many people think that, due to all the fancy gear that we have now, there is no requirement to use good voice procedure (using reference points or veiled speech rather than using plain speech to give friendly positions). That is based on the assumption that "they" don't have the technology to crack our technology (remember the Germans and their "impenetrable" codes???) or use captured equipment to monitor our comms. A civilian GPS that might be spoofed is no more or no less dangerous (and I would argue far less dangerous in most cases) than someone who insists on sending friendly information in clear under the misguided notion that our "secure" comms won't be monitored or breeched by "them".
The dangerousness of it would all depend on the situation and what value you put into those you lead. A GPS can be spoofed, leading people into an ambush. Guided munitions can be spoofed sending 2000lb bunker busters on civilian targets. Unencoded radio traffic can lead the enemy to one of our patrols.
I think maybe you meant by far less dangerous, was its far less likely to happen? If so, you are still wrong. Its easier to jam a GPS signal since its so weak by the time it hits earth, and its not uncommon. Our TCCCS gear pumps out high wattage and is harder to jam.