RTM Sibu FM should add a gap filler transmitter in Kanowit, Sarawak, so the people in Kanowit can tune this radio station loudly and clearly.

From Sibu to Kapit, RTM Sibu FM is covered by 3-4 transmitters all the way, FM 87.6MHz Bukit Lima, FM 102.1MHz Bukit Singgalang, FM 99.8MHz Bukit Song and FM 94.3MHz Bukit Kapit, however there is a blindspot coverage of these transmitters in Kanowit, Sarawak.

RTM Sibu FM has no local gap filler transmitter in Bukit Memaloh for Kanowit like Sarawak FM 107.1MHz and Nasional FM 104.5MHz, so I need to tune Sibu FM on 102.1MHz from Bukit Singgalang transmitter.

In Kanowit, RTM Sibu FM 87.6MHz and 102.1MHz are not clear, but in terms of signal strength, 102.1MHz has better signal and dominates more coverage than 87.6MHz in Kanowit town. If I tune from Kanowit to Song, 87.6MHz and 102.1MHz are moderate and weak together vice-versa.

While Bukit Song transmitted radio stations like RTM Radio Klasik FM 91.1MHz, Traxx FM 96.7MHz, Red FM 99.0MHz, and RTM Ai FM 97.5MHz can be tuned clearly in between Kanowit and Song (Nanga Ngerah), but Sibu FM 99.8MHz cannot be tuned clearly due to adjacent channel interference with Cats FM 99.9MHz Bukit Singgalang transmitter as both radio stations' frequency separation is at 100kHz.

In my opinion, RTM Sibu FM should launch a gap filler transmitter in Bukit Memaloh to cover Kanowit, Sarawak where is the blindspot coverage of 102.1MHz (Bukit Singgalang) and 87.6MHz (Bukit Lima). Hence, the listeners can tune Sibu FM in Kanowit loudly and clearly from Bukit Memaloh transmitter tower. When Sibu FM 102.1MHz and 87.6MHz are super weak in between Kanowit and Song, while 99.8MHz is interfered with Cats FM 99.9MHz, the listeners can tune to this radio station on Kanowit frequency clearly.

If RTM Sibu FM adds Kanowit transmitter, so RTM has 3 radio stations in this town. In addition, Sibu FM instantly fills the coverage gap in between Sibu and Song.

Regarding the frequency, there are plenty of empty frequencies slots in Kanowit. Based on radio frequencies bandscan, I have listed down the frequency availability for Sibu FM in Kanowit.

* 98.1MHz

* 100.3MHz

* 103.7MHz

* 105.5MHz

* 106.3MHz

==RF analysis==

1. FM 98.1MHz

98.1MHz: RTM Sibu FM Kanowit

98.5MHz: RTM Nasional FM Bukit Lima

<400kHz, OK>

97.5MHz: RTM Ai FM Bukit Song

98.1MHz: RTM Sibu FM Kanowit

<600kHz, OK>

2. FM 100.3MHz

99.9MHz: Cats FM Bukit Singgalang

100.3MHz: RTM Sibu FM Kanowit

<400kHz, OK>

100.3MHz: RTM Sibu FM Kanowit

100.3MHz: RTM Sarawak FM Bukit Temudok

<0kHz, OK>

100.3MHz: RTM Sibu FM Kanowit

100.7MHz: Tea FM Bukit Lima

<400kHz, OK>

100.3MHz: RTM Sibu FM Kanowit

100.5MHz: RTM Red FM Bukit Setiam

<200kHz, OK>

3. FM 103.7MHz

103.3MHz: RTM Ai FM Bukit Lima

103.7MHz: RTM Sibu FM Kanowit

<400kHz, OK>

103.7MHz: RTM Sibu FM Kanowit

103.8MHz: RTM Traxx FM Bukit Temudok

<100kHz, OK>

103.7MHz: RTM Sibu FM Kanowit

104.1MHz: RTM Red FM Bukit Lima

<400kHz, OK>

103.7MHz: RTM Sibu FM Kanowit

104.5MHz: RTM Nasional FM Kanowit

<800kHz, OK>

4. FM 105.5MHz

105.1MHz: Hitz FM Bukit Lima

105.5MHz: RTM Sibu FM Kanowit

<400kHz, OK>

105.3MHz: RTM Ai FM Bukit Temudok

105.5MHz: RTM Sibu FM Kanowit

<200kHz, OK>

105.5MHz: RTM Sibu FM Kanowit

105.9MHz: MY FM Bukit Lima

<400kHz, OK>

104.5MHz: RTM Nasional FM Kanowit

105.5MHz: RTM Sibu FM Kanowit

<1MHz, OK>

5. FM 106.3MHz

105.9MHz: MY FM Bukit Lima

106.3MHz: RTM Sibu FM Kanowit

<400kHz, OK>

106.3MHz: RTM Red FM Bukit Temudok

106.3MHz: RTM Sibu FM Kanowit

<0kHz, OK>

106.3MHz: RTM Sibu FM Kanowit

107.1MHz: RTM Sarawak FM Kanowit

<800kHz, OK>

Among these 5 frequencies, based on the RF analysis, I recommend 98.1MHz or 105.5MHz as the Kanowit frequency of RTM Sibu FM because they meet the minimum frequency separation with the existing stations.

As today, Sibu FM is tuned in Kanowit, Sarawak weakly on 102.1MHz from Bukit Singgalang transmitter.