Depends on the altitude of the aircraft, speed and direction of the aircraft. Most shoulder fired missiles have restricted altitudes, since the missile itself is smaller and can't carry too much fuel. The Pakistani Anza missile, equivalent to Stinger, Strela or Igla, can knock out low flying jets and helicopters.
View attachment 211768
View attachment 211769
ANZA MK-II Specifications
L Type 2-stage, low altitude
Length
(missile, with booster motor) 1.447 m
Weight 16.5 kg
(total launch assembly in
firing condition)
(missile at launch) 10.68 kg
Propulsion solid fuel booster and solid fuel sustainer rocket motor
Guidance cooled InSb passive infra-red homing seeker
Warhead HE fragmentation (containing 0.55 Kg HE) with contact and
graze fuzing
Average missile cruise speed 600 m/s
Max missile manoeuvring 16 g
Self destruction time 14-18 s
Max effective slant range 5,000 m
Min effective slant range 500 m
Max effective altitude 4000 m
Min effective altitude 30 m
Weapon reaction time less than 3.5 s
Time from march to ready less than 10 s
for operation
Battery operation time more than 50 s
With missiles like this, you're looking at an engagement altitude of less than 3 km.
This wont counter high altitude aircraft, stand-off ranges or munitions and has limited effectiveness against fast-flying aircraft too. But against helicopters and low flying attack platforms, such as Jaguar, it can be very effective.
Just like Patriot, THAAD and S-300, I would expect HQ-9 - as a modern missile, to have this capability too. Those quotes don't refer to the missile itself (it's flight time is too short to act as a command module), but the command module's ability to take control over other parts of an individual or connected battery. One Patriot command unit can control several Patriot batteries from a single location. US warships have this capability too.
It's not unique, but it is useful for networked defense structures.
Just like the MIM-104 Patriot of the United States, the FM-3000 can be used to command other air defense weapons on the battlefield.
FM-3000 air defense system on display at Zhuhai Air Show|WantChinaTimes.com
*I know this isn't a trusted source in China, or else where for that matter, but the information is still accurate regarding Patriot. I can't validate it for FM-3000 though.
Plenty of information on Patriot's battlefield organization -
MIM-104 Patriot - Wikipedia, the free encyclopedia