Always considered an absolute absurdity and a "joke of the authors of" every kind of antenna for 3G modem of type "cupping antenna
" which is connected to the modem this way:
But just today I met with selling such a kit
In which the modem is placed in a kind of "frame", which is connected to the antenna
I'm not good at electronics, but I think the use of this approach in microwave technique some kind of perversion, and this method is at best not
degrade the signal.
Please tell me whether this approach can give a signal gain for several dB? Or similar "factory" solution is nothing more than another Scam to get money?
PS I Have hands grow from the shoulders, I know the correct way to rework modems
for external antenna in case of absence of the adapter, and can implement them. But I'm interested in commercial solutions. Adapters for the most popular modems in the sale I found, but the approach described above without altering the modem it seems to me some kind of nonsense