Depends on the system. HIMAD systems like S400 / HQ9 take around 30 mins i believe. You will need to connect the command vehicle with radar and batteries through RF antennas. Power connections. Erecting the launchers. Then earthing connections. System power up. BIT checks. Radar optimization etc
Proficiency and skill level of manpower may affect the timings.
I don't know where you got this information. It differs significantly from the information I have.
Modern medium-to-long-range area air defense systems (such as the HQ-9 and S-400) typically take several minutes to ten minutes to transition from a marching state to a fully deployed, combat-ready state. Russian official information states that the standard transition time for the S-400 is approximately 5 minutes. The reverse process (withdrawal) takes slightly less time.
There's another difference. Modern medium-to-long-range area air defense systems need to distinguish between pre-established and non-pre-established positions.
Deployment is faster at pre-established positions. They typically use pre-laid cables to connect the various units, improving their resistance to interference. Deployment at non-pre-established positions is slower, and usually involves using dedicated wireless communication systems to connect the units.
The specific time required depends on multiple factors, including the training level of the troops and the combination of weapon system units. However, they now generally employ highly automated deployment systems, which are quite fast and usually don't require 30 minutes.
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The Soviet SA-2 air defense system.
When the Chinese army used this system, the time required to switch from marching to combat readiness was approximately 4 hours.
Later, the North Vietnamese army also introduced and deployed this system. Their fastest recorded time was 6 hours.
Similar differences also exist with the S-400 air defense system. The actual time required for Russia, China, and India may also vary significantly.