RTM Bintulu FM was established since 2011, it operates with two frequencies in Bintulu Division, such as FM 97.5MHz Bukit Setiam and FM 95.3MHz RTM Bintulu.
FM 97.5MHz Bukit Setiam is the main transmitter of Bintulu FM to cover entire Bintulu Division and it can cover part of Mukah Division (Balingian) as well as Miri Division (Suai & Niah), its transmitter power is 1kW, meanwhile FM 95.3MHz from RTM Bintulu is low power transmitter located in Bintulu old town, output power is 0.1kW.
Actually Bintulu FM frequencies are duplicated, but technically FM 97.5MHz and FM 95.3MHz play different role.
Bintulu FM 95.3MHz acts as a transponder to send studio feed from RTM Bintulu to Bukit Setiam transmitter (97.5MHz), same situation like RTM Langkawi FM where 87.5MHz RTM Kuah acts as transponder to send studio feed from RTM Kuah to Gunung Raya transmitter (104.8MHz).
If Bintulu FM has no 95.3MHz, the main transmitter in Bukit Setiam on FM 97.5MHz will not receive any signal feed from RTM Bintulu, so the listeners will only get silent signal on FM 97.5MHz in Bintulu Division because Bintulu FM 97.5MHz in Bukit Setiam cannot receive feed from FM 95.3MHz RTM Bintulu.
Labuan FM 103.7MHz also acts as a transponder in RTM Labuan to send studio feed to FM 89.4MHz Bukit Timbalai transmitter.
In conclusion, Bintulu FM 95.3MHz is still important because it acts as transponder by sending studio feeds from RTM Bintulu to Bukit Setiam in order to cover entire Bintulu Division via FM 97.5MHz. It is not suitable to abolish FM 95.3MHz, unless RTM uses STL (studio to transmitter link) which sends feeds via microwave link, but there are terrains between RTM Bintulu to Bukit Setiam, so it is likely impossible of STL microwave signal can travel from RTM Bintulu to Bukit Setiam as microwave signal is using ultra high frequency (UHF) at 900MHz or 2GHz.
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