For example this unit has 16 antennas that are all radiating concurrently, how is it that the antennas do not interfere with each other since they are all in each other's near-field and are capacitively coupled? And maybe even inductively coupled because of the loading coils that are so close to each other?
https://www.jamexptec.com/16-antenn...equency-jammer-from-130-2700mhz-p00144p1.html

 

What sort of interference are you expecting?

 

What sort of interference are you expecting?

I thought that since antenna designs were so precise and every element needed to be put in an exact position and have an exact dimension, that the whole set of antennas on the jammer are in fact acting as just one complex antenna with multiple elements, so how is it that that does not happen? What about all the inevitable capacitive and inductive coupling that would happen in the nearfield between each antenna? surely that they would have to have an effect?

 

... A new development, possibly of interest:
Duplex single frequency technology

 

I thought that since antenna designs were so precise and every element needed to be put in an exact position and have an exact dimension, that the whole set of antennas on the jammer are in fact acting as just one complex antenna with multiple elements, so how is it that that does not happen? What about all the inevitable capacitive and inductive coupling that would happen in the nearfield between each antenna? surely that they would have to have an effect?

Those antennas are trash anyway. They are almost certainly very poorly matched. The whole things is just a big utterly illegal RF hammer. They aren't concerned about antenna performance.

 

Those antennas are trash anyway. They are almost certainly very poorly matched. The whole things is just a big utterly illegal RF hammer. They aren't concerned about antenna performance.

yes, i am not interested in them as jammers, just using the example, i was just hoping to find out the antenna theory concept of having multiple antennas in such proximity. so would you agree that the antennas would interfere with each other? just so that i can understand the antenna theory aspect of it.

 

yes, i am not interested in them as jammers, just using the example, i was just hoping to find out the antenna theory concept of having multiple antennas in such proximity. so would you agree that the antennas would interfere with each other? just so that i can understand the antenna theory aspect of it.

Antennas are mounted in each others near field on every shared transmission tower. Research that.

 

Mafia paid a Project within the topic???

 

Mafia paid a Project within the topic???

https://www.thedrive.com/the-war-zo...as-been-installed-on-u-s-navy-7th-fleet-ships
RF jammers.

 

View attachment 233696
https://www.thedrive.com/the-war-zo...as-been-installed-on-u-s-navy-7th-fleet-ships
RF jammers.

The funny thing about this is they suggest it for "VIP convoy" use. Do they also sell the magical radios to use when you have it on? Or do they explain you to us field telephones? Semaphore? Yelling?

 

I guess you could use low band radios, 46Mhz isn't going to care about that box.