Pulse Repetition

[Joni]

I was reading this:

 

"The PRF is one of the defining characteristics of a radar system. Radar system normally consist of a powerful transmitter and sensitive receiver connected to the same antenna. After producing a brief pulse of radio signal, the transmitter is turned off in order for the receiver units to hear the reflections of that signal off distant targets. Since the radio signal has to travel out to the target and back again, the required inter-pulse quiet period is a function of the radar's desired range. Longer periods are required for longer range signals, requiring lower PRFs. Conversely, higher PRFs produce shorter maximum ranges, but broadcast more pulses, and thus radio energy, in a given time. This creates stronger reflections that make detection easier. Radar systems must balance these two competing requirements."

 

I always thought, based on DCS documents, training, manuals and posts in these forums, that the High PRF had longer range and Low PRF had shorter range. But this I copied above states the opposite.

 

Does anyone know the real deal?

[Bushmanni]

https://forums.eagle.ru/showpost.php?p=2858129&postcount=16

[Joni]

https://forums.eagle.ru/showpost.php?p=2858129&postcount=16

 

Thanks Sir. I reply here since the other post is kinda old. I have two questions.

 

I was in Low PRF yesterday and had the antenna looking at -5 thousand feet but saw no ground returns, everything was filtered. So I guess either PRF is not modeled on the Mirage or something might be going on.

 

Second, related to the above, I was chasing a friend during training yesterday, and noticed that at 11nm he dissapeared from my radar no matter what PRF I selected, so I more or less conclude that High or Low PRF is the same in the Mirage.

 

 

Thanks, im new in the Mirage so I will be having a lot of questions.:)