The High Power Amplifier for my Tactical GSM network has arrived, it almost took 2 weeks to get it delivered.
I bought the amplifier from Israel. Although it is manufactured in Korea.

It gives 42db avarage gain and allows up to 10 watts of transmit power.

Also it is noticable that it has d-sub 3w3 power connector.
I intended to buy a proper connector for the cabling but I gave up, I am going to rely on coils and and duct tapes

But it consumes near 300w of electricity at max, so I had to buy a separate power supply for it.

It isn’t easy to come by a 27v power supply but I was lucky enough to find one.