MANILA - Illegal signal transmitters such as signal boosters, repeaters and radio frequency identification (RFID's) outside allocated frequency band caused service interference in more than 1,200 cell sites, Globe said in a statement Tuesday.
Around 60 percent of mobile users in affected sites in Metro Manila experienced dropped calls, garbled lines, weak signal and slow browsing due to the service interference, Globe said.
”While illegal signal boosters may enhance wireless coverage in a particular area, such devices, when improperly designed or installed, will cause interference with mobile networks and thus will impede communication services, including emergency calls in the community," Globe General Counsel Atty. Froilan Castelo said.
This year, the 85 percent increase in the use of illegal repeaters, signal boosters and RFIDs outside the National Telecommunications Commission's (NTC) allocated frequency band prompted the telecom provider to rev up its campaign to curb the problem on interference.
Globe said it has disabled 210 illegal repeaters and RFID systems operating outside allowed frequencies as of September.
Despite this, Globe said only 10 percent of the affected sites have been cleared of interference, as the problem illegal repeaters and "uncontrolled" proliferation of repeaters and RFIDs in high-end residential areas remains unsolved.
NTC issued Memorandum Order 01-02-2013 in 2013, prohibiting the sale, purchase, importation, possession or use of signal boosters operating on the 800 megahertz, 900 MHz, 1800 MHz, and 2100 MHz frequency bands without its approval.
Castelo warned that the unauthorized possession and use of repeaters is punishable by law. Violators may face fines and imprisonment.