Balingian is the final coverage of RTM Sibu FM via 102.1MHz Bukit Singgalang transmitter when we drive from Sibu to Bintulu

Balingian is a small town of Mukah Division, it is located between Mukah and Bintulu. 

Regarding the radio stations' coverage, Balingian is covered by Bukit Setiam transmitter. In Balingian, here are the available radio stations.

* Radio Klasik FM 87.9MHz Bukit Setiam

* Nasional FM 90.3MHz Bukit Setiam

* Sarawak FM 93.7MHz Bukit Setiam

* Traxx FM 98.5MHz Bukit Setiam

* Ai FM 99.3MHz Bukit Setiam

* Red FM 100.5MHz Bukit Setiam

* Bintulu FM + Wai FM Iban 97.5MHz Bukit Setiam

* Cats FM 88.3MHz Bukit Setiam (it can be tuned alternatively via 99.9MHz Bukit Singgalang transmitter if 88.3MHz has co-channel interference with Radio Klasik FM 88.3MHz from Mukah transmitter in Balingian)

What about RTM Sibu FM in Balingian?

According to the coverage map which I generate via Nautel RF Toolkit, Sibu FM in Balingian is covered by Bukit Singgalang transmitter on the frequency 102.1MHz, meanwhile its Mukah frequency 98.7MHz is weak there. RTM Sibu FM 98.7MHz Mukah transmitter has adjacent channel interference noise from Traxx FM 98.5MHz Bukit Setiam transmitter in Balingian.

Based on the coverage map, RTM Sibu FM 102.1MHz Bukit Singgalang transmitter has moderately clear coverage in Balingian.

On YouTube, a Sarawak radio DXer, named COCK DX Channel (also known as Sarawakians_12) published an audio clip of tuning Sibu FM 102.1MHz in Balingian area, Sarawak. According to him, he tuned the radio at Pan Borneo Highway with 61km distance. By measuring the distance with 61km from Bukit Singgalang to Pan Borneo Highway, he tuned RTM Sibu FM 102.1MHz at Sungai Arip area after Ulu Balingian when heading to Bintulu. 

The signal is moderately weak at Sungai Arip.

By drawing a line from the receiving site to the north, actually Sibu FM 102.1MHz signal is louder and clearer in Balingian than Sungai Arip and Kuala Balingian near Tatau.

From Sibu to Bintulu via Pan Borneo Highway or coastal road, Balingian is the last coverage of RTM Sibu FM 102.1MHz Bukit Singgalang transmitter. Weak or zero signal after Balingian when enter Tatau.

In Balingian, both Sibu FM (102.1MHz) and Bintulu FM (97.5MHz) are available, they mostly relay the broadcast from Wai FM Iban for 21 hours, meanwhile they air local Malay program for 3 hours from 9am to 12pm daily.

For Wai FM Iban's listeners in Balingian, they can tune clearly and loudly via Bintulu FM 97.5MHz (Bukit Setiam transmitter), compare to Sibu FM 102.1MHz (Bukit Singgalang transmitter).