Hello. After orange gave up the CDMA 450 MHz frequency, I was practically cut off from the Internet, of course, I was offered to switch to 3G and LTE, the problem is that the signal does not reach at higher frequencies, of course it catches HSPA + but leaves much to be desired, online games fall off because ping jumps like so crazy on my ZTE 283+ I forced LTE and I caught one dash, signal strength -89 dBm ping stabilized at this point ping 33ms 6.50 download 0.43 upload the day ping similar download lower upload also similar I already bought one external antenna cybertech dual antenna -lte-4g-to-zte-mf28d-mf283-15dbi-although it did not help because I made a mistake and it does not catch lte 1800MHz, so I would like to ask you for help in choosing the antenna for 800 MHz lte and if it will improve anything at all. I have 3.75 km for the transmitter, including 700m of forest, data from geoportal.gov.pl
Best regards.
Best regards.