There are a number of Direction finding algorithms that very very accurate. They can easily identify your transmitter location to the house in the street from a long way away.
This direction finding method is called super resolution. They all use standard DSP algorithms thats available in the public domain. The 2 most popular are MUSIC and ESPRIT. They are technically cable of 0.1 degree resolution on the azimuth.
The most advanced of these DSP based direction find systems can also resolve a transmitters location using a single direction finding station. This method is called Single Sight Location. Its what most regulatory agencies like the FCC uses. Its more powerful when cross referenced to a number of DF stations. Its so accurate that these days most use a single direction finding location. Stupid hams who ham have no idea how fast and accurate these systems are. From my experience using these systems is that its easy to tell from end of the street a ham is transmitter from. They are that accurate. The method is simple and the mathematics is simple. What is not so simple is the receiver and DSP hardware. Single site location direction finding could be done from the current generation of direct sampling receivers if someone took the time to implement the technique. All you need is access to is accurate ionospheric height sounding data. Most DF station of a radiosonde at the DF station.
Hams could easily run a direction finding network the could track jammers for months after they have done the jamming. The processed data can be recorded and a jammer could be identified months later! Thats generally how many regulatory agencies work. They collect the data and process the data to identify the target offending transmitters. Even something like a whistle or microphone click is long enough for DSP direction finding algorithms. Companies like R&S have plenty information on their web pages about this everyday hardware. These days super resolution is old hat! The many stupid hams have no idea how powerful these new generation of direction finders are. If they knew they would not be causing interference!