Not sure what you are trying to say here. Jamming the GPS signals dates back to 90s in US and Iraq war where Iraq was using Russian supplied equipment. It is a well known fact that it can be jammed.
https://www.scientificamerican.com/article/safeguarding-gps/
Thanks for sharing that link - very informative.
However, you can see that American forces easily defeated Iraqi GPS jamming capabilities in a major military operation. Therefore, GPS jamming is practical only in limited scenarios and/or GPS anti-jamming technologies have addressed this problem to large extent.
Don't be. It is your opinion not ours.
You can find it in this section. Sorry, don't have time to dig it up.
I will check that thread but I doubt it will be sufficient to address my skepticism. Problem is that Iranian incident seems to be a one-off or an
outlier, not a norm. And I really doubt that RQ-170 drone was used to spy on Iran just once and it was brought down the same day.
I doubt any member in this community can claim to know much about capabilities and vulnerabilities of RQ-170 drone. It would surprise me if this drone does not have built-in
fail-safes against GPS jamming technologies since a large number of American military assets have them. Americans tend to be aware of literally every kind of threat in existence and develop appropriate countermeasures.
Americans successfully utilized an RQ-170 drone for surveillance of Abbottabad inside Pakistan during night-time conditions (in connection with hunt of OBL) and we were not able to detect or track it any time - I wouldn't underestimate Pakistani defenses among Islamic states at minimum and Pakistan does not allow American drones to come this far. Therefore, this drone is not as vulnerable as Iranian account seems to suggest.
In-fact, American surveillance efforts are non-stop - they are spying on Iran, Pakistan, China and North Korea as we speak.