To take out these silly little quadcopters you need to go after a very wide range of frequencies, 433 (RC), 868~915 (RC), 2.4~2.5 (Wi-Fi and video), 1227 (GPS L2), 1570~1620 ((GPS L1 + GLONAS L1) and 5.8 (Wi-Fi). Not only do you need to hit all those frequencies you need to have a rather high wattage as well, 150 watt output would cover about 6~1000 mtrs.
The main issue straigh away is that in Australia like most countries frequency jammerrs are illegal, https://www.acma.gov.au/theACMA/faqs-mo ... vices-acma
Therefore to try and set something up on an Helicopter would be difficult and more so would actually interfere with the airframes main systems. You have companies producing jammers and the like and they are normally being ultilised around high value installations where the laws are differnet. Dronegun is a good example https://www.droneshield.com/dronegun/
yet these are very directional and used only momentarly are not constantly on and broadcasting across the spectrum. https://au.finance.yahoo.com/news/austr ... 12458.html
The largest quadcopter companies are incorporating safeguards in their firmware that involve geo-fencing and height restrictions and this can help, yet a 400 foot height restriction only works some of the time.
The incorporation of micro transponders, https://www.uavionix.com/news/ultra-lig ... r-for-uas/
is a very good start and also Broad-area Airspace Situational Awareness Systems https://insitu.com/press-releases/Insit ... ir-Systems
will also help considerably.
Yet at the end of the day operators such as this halfwit will always be around until the powers to be ban the sale of all non-nonconforming quadcopters and also TX systems (433/900) in Australia.
Once again it is simply all down to CASA getting their s#!t together.