RTM Sibu FM transmission coverage in Daro and Matu, Sarawak (simulated version)

RTM (Radio Televisyen Malaysia) has 3 radio stations in Daro, Sarawak, but transmitted from Kampung Semop where is located in Pulau Bruit. 

 

In Daro, Sarawak, the people can only tune Radio Klasik FM 92.7MHz, Nasional FM 95.7MHz and Sarawak FM 99.0MHz from Kampung Semop which are very clear in that town, but Sibu FM and other RTM radio stations (Traxx FM, Ai FM and Red FM) have no local transmitters at Kampung Semop because Daro is Malay and Melanau majority town in Mukah Division, Sarawak.

 

How about the coverage of RTM Sibu FM in Daro and Matu from distant transmitters?

 

Let's compare with the simulated coverage map of RTM Sibu FM between 94.6MHz Bukit Kayu Malam, 87.6MHz Bukit Lima and 102.1MHz Bukit Singgalang transmitters to identify which one is the best tuning frequency in Daro and Matu, Sarawak.

 

==Sibu FM 94.6MHz Bukit Kayu Malam==

 

==Sibu FM 87.6MHz Bukit Lima==

==Sibu FM 102.1MHz Bukit Singgalang==

Based on the coverage map above, the signal of RTM Sibu FM 87.6MHz and FM 102.1MHz are weaker than FM 94.6MHz. By looking the green colour shaded region coverage map in Daro and Matu which its field strength is 54dBuV/m, Bukit Kayu Malam transmitter has moderately clear coverage in Pulau Bruit, Daro and Matu, Sarawak, meanwhile 87.6MHz Bukit Lima and 102.1MHz Bukit Singgalang have poor coverage in these areas with yellow colour shaded region which its field strength is below than 54dBuV/m (weak radio signal to zero signal).

Hence, RTM Sibu FM in Daro, Bruit Island and Matu are covered by Bukit Kayu Malam transmitter on the frequency FM 94.6MHz.

 

The signal of RTM Sibu FM 94.6MHz from Bukit Kayu Malam transmitter is likely clear in Daro and Pulau Bruit, but the signal is slightly weak if the listeners tune in Matu.

In Daro, Bruit Island and Matu, alongside RTM gap filler radio transmitter at Kampung Semob, the people can access other RTM radio stations and Cats FM with moderate signal via Bukit Kayu Malam by following below:

- Traxx FM 92.3MHz

- Ai FM 93.6MHz

- Red FM 89.2MHz

- Cats FM 96.7MHz

 

==Result of RTM Sibu FM radio reception in Daro and Matu, Sarawak (simulated version)==

1. Daro

* 94.6MHz Bukit Kayu Malam: OK (65km)

* 87.6MHz Bukit Lima: Weak/No signal (54km)

* 102.1MHz Bukit Singgalang: Weak/No signal (87km)

2. Matu

* 94.6MHz Bukit Kayu Malam: Slightly weak (82km)

* 87.6MHz Bukit Lima: Weak/No signal (57km)

* 102.1MHz Bukit Singgalang: Weak/No signal (80km)

RTM Sibu FM has 3 hours Malay language local broadcast everyday from 9am to 12pm, the people in Daro and Matu can listen to this radio program by tuning the frequency on FM 94.6MHz from Bukit Kayu Malam.

Disclaimer: This article is a simulated analysis with the aid of Nautel RF Tookit Longley Rice coverage map, but on site physical radio coverage check in Daro and Matu may be likely different from the simulated coverage check by using RF toolkit.

To visit Daro and Matu, Sarawak, we need to go via ferry for now because Batang Paloh bridge is not completed yet. I can only visit these two rural towns in Mukah Division to conduct radio signal check once Batang Paloh bridge is officially launched to the public.

Pusa is the best town in Betong Division, Sarawak to tune Kuching radio stations clearly via frequency transmission.

 

Pusa is a small town in Betong Division, Sarawak, it is located between Saratok and Debak, but near to Batang Saribas and the coast.

Compare with other areas in Betong Division such as Roban, Saratok, Debak, Kabong, Spaoh and Betong, actually Pusa is the best location in Betong Division, Sarawak where the listeners can tune several Kuching radio stations clearly from Gunung Serapi and Bukit Djin via frequency transmission.

Today on 27th July 2025, the Sarawak radio DXer, named @Sarawakian_12 publishes the radio signal monitoring audio clips in Pusa, Sarawak on YouTube. He tunes 6 Kuching radio stations in Pusa, Sarawak.

1. Hot FM 94.3MHz (120km from Gunung Serapi)

Two months ago, I also monitored Hot FM 94.3MHz radio signal in Simanggang (Sri Aman), Engkilili, Debak, Saratok and Roban. At my side, Saratok is the clearest town to tune Hot FM 94.3MHz, following by Roban and Engkilili, meanwhile Hot FM 94.3MHz is interfered badly by RTM Sarawak FM 94.4MHz in Simanggang and Debak.

Although Pusa is not far from RTM Sarawak FM 94.4MHz Off Spaoh transmitter where its distance is just 25km, but Hot FM 94.3MHz has no interference noise from this radio station in Pusa, Sarawak. For RTM Sarawak FM, it can be tuned in Pusa clearly on 100.3MHz from Bukit Temudok.

 

RTM Sarawak FM 94.4MHz is a low power transmitter in Off Spaoh to cover only Spaoh, Debak and Betong. Sarawak FM 100.3MHz Bukit Temudok transmitter is less clear in some locations within Debak, so FM 94.4MHz covers the blindspot coverage of FM 100.3MHz in Debak, Sarawak.

 

2. RTM Wai FM Iban FM 101.3MHz (120km from Gunung Serapi)

RTM Wai FM Iban can be tuned in Pusa even clearer via Sri Aman FM 89.5MHz from Bukit Temudok, except 9am to 12pm radio slot. Alongside RTM Klik, Astro CH871, MYTV CH710 and shortwave SW 11665kHz, RTM Wai FM Iban 101.3MHz is the alternative frequency in Pusa when the listeners tune to Wai 9-12 from 9am to 12pm while Sri Aman is airing 3 hours local Malay language broadcast.

 

3. RTM Wai FM Bidayuh FM 106.1MHz (120km from Gunung Serapi)

Although there are very less Bidayuh people residing in Pusa, but Pusa is a bonus coverage of Wai FM Bidayuh on 106.1MHz from Gunung Serapi. According to @Sarawakians_12, Wai FM Bidayuh has no signal on 101.7MHz from Gunung Ampungan.

 

4. RTM Radio Klasik FM 92.9MHz (120km from Gunung Serapi)

RTM Radio Klasik can be tuned clearly on FM 107.3MHz from Bukit Temudok in Pusa, Sarawak. From Debak to Pusa, as Radio Klasik operates on FM 92.8MHz in Off Spaoh, so there is self-interference of Radio Klasik between FM 92.8MHz (Off Spaoh) and FM 92.9MHz (Gunung Serapi).

 

5. Kupi-Kupi FM 92.5MHz (102km from Bukit Djin)

The signal in Pusa is clearer than Saratok, Engkilili, and Simanggang where I tuned 2 months ago.

 

6. Eight FM 98.3MHz (102km from Bukit Djin)

Eight FM 98.3MHz from Bukit Djin is the only full fledged Chinese commercial radio station available in Pusa, Sarawak, meanwhile MY FM 96.9MHz and Melody FM 103.7MHz are not available there.

 

The radio signal of RTM Wai FM Iban 101.3MHz, RTM Wai FM Bidayuh FM 106.1MHz and Hot FM 94.3MHz are very clear in Pusa, Sarawak, meanwhile Kupi-Kupi FM 92.5MHz and Eight FM 98.3MHz are moderately clear there too.

Overall, the listeners can tune more radio stations in Pusa than other areas in Betong Division, Sarawak. Here is a list of the radio stations in Pusa, Sarawak.

* RTM Radio Klasik FM 107.3MHz (Bukit Temudok)

* RTM Nasional FM 98.9MHz (Bukit Temudok)

* RTM Sarawak FM 100.3MHz (Bukit Temudok)

* RTM Traxx FM 103.8MHz (Bukit Temudok)

* RTM Ai FM 105.3MHz (Bukit Temudok)

* RTM Red FM 106.3MHz (Bukit Temudok)

* RTM Sri Aman FM 89.5MHz (Bukit Temudok)

* RTM Wai FM Iban 101.3MHz (Gunung Serapi)

* RTM Wai FM Bidayuh/Radio Kayan 106.1MHz (Gunung Serapi)

* Cats FM 88.7MHz (Bukit Temudok)

* Hot FM 94.3MHz (Gunung Serapi)

* Eight FM 98.3MHz (Bukit Djin)

* Kool 101 FM 104.3MHz (Bukit Djin)

* Kupi-Kupi FM 92.5MHz (Bukit Djin)

* Tea FM 102.7MHz (Bukit Antu)

* Bernama Radio FM 100.9MHz (Bukit Antu)

Astro radio stations are likely not receivable in Pusa, Sarawak due to low power transmission and directional antenna.

Thanks to @Sarawakians_12 for contributing FM radio signal monitoring works by recording some Bukit Djin and Gunung Serapi radio stations signal as the sample.

Radio Era Sarawak diterima di Sabah pada frekuensi FM 101.3MHz dari Miri, Sarawak (Bukit Lambir)

Siaran radio Era Sabah mempunyai dua frekuensi di Negeri Sabah, iaitu FM 102.4MHz di Kota Kinabalu (Bukit Karatong) dan FM 103.0MHz di Sandakan (Bukit Trig).

Era Sabah and Era Sarawak mempunyai kandungan yang berbeza. 

Walaupun orang Sabah boleh mendengar siaran radio Era Sabah, tetapi di sesetengah kawasan, Era Sarawak boleh didengari pada frekuensi FM 101.3MHz dari Miri, Sarawak (Bukit Lambir).

Era FM Sarawak mempunyai frekuensi di Miri yang dipancar dari FM 101.3MHz, siaran radio ini boleh didengari di Miri, Bekenu, Niah, Marudi, dan sebahagian Brunei (Tutong, Kuala Belait dan Seria), tetapi terdapat seorang pendengar radio boleh menerima siaran Era FM Sarawak 101.3MHz di Tamparuli dan Tuaran.  Selain itu, Era FM Sarawak 101.3MHz boleh dikesan Jalan Keningau-Kimanis dan Jalan Kota Kinabalu - Tambunan.

Era FM Sarawak 101.3MHz dari Bukit Lambir ialah stesen radio yang paling jauh diterima di negeri Sabah dengan jarak 326km, terutamanya Tuaran dan Tamparuli.

Terdapat rakaman video penerimaan siaran radio Era FM Sarawak 101.3MHz di Sabah yang dimuatnaik oleh Kisah Alkisah di YouTube.

1. Tuaran (326km)

2. Tamparuli (326km)

3. Jalan Kimanis - Keningau

4. Jalan Kota Kinabalu - Tambunan

Penerimaan siaran radio Era FM Sarawak 101.3MHz di Sabah adalah bersifat troposfera.

Radio Republik Indonesia (RRI) launches PRO-3 radio station on shortwave frequency SW 7300kHz?

In Indonesia, Radio Republik Indonesia (RRI) currently operates only two shortwave radio stations, namely Voice of Indonesia - VOI (SW 3325kHz/4755kHz) and RRI Nabire PRO-1 (SW 7290kHz).

Recently there are several Indonesia radio listeners detecting a signal on SW 7300kHz which broadcasts RRI PRO-3 program in Indonesian language, I have spotted several posts regarding RRI PRO-3 transmission on SW 7300kHz via Facebook.

There is no information about this frequency from Radio Republik Indonesia (RRI) yet.

Transmitter site is unknown.

I have successfully captured Radio Republik Indonesia RRI PRO-3 signal on SW 7300kHz at my home in Balakong, Selangor, Malaysia today before going out to work.

Signal is weak in Malaysia when I tune RRI PRO-3 SW 7300kHz, video is recorded today on 21st July 2025 at 0720 hours (UTC+8). Currently I'm searching the information of this frequency's transmission.

Is SW 7300kHz an official broadcast of Radio Republik Indonesia RRI PRO-3? RRI should explain this to the public.

Singapore 88.3 Jia FM and Power 98FM will be closed down on 30th October 2025, both frequencies will become empty in Singapore, but can Malaysia or Indonesia radio stations use those frequencies in JB and Batam?

Singapore's So Drama! Entertainment radio stations 88.3 Jia FM and Power 98FM will be ended their broadcast via FM radio on 30th October 2025 in order to focus on digital platform.

 

Kakee app is a digital streaming platform in Singapore, launched by So Drama! Entertainment since June 2025.

 

Both radio stations have been on Singapore's airwaves for 31 years since 1994, they will go farewell in October 2025 by ending their broadcast, the frequencies FM 88.3MHz and FM 98.0MHz would be returned to Singapore's Infocomm Media Development Authority (IMDA).

Singapore radio stations will be reduced from 19 to 17 after Jia FM 88.3 and Power 98FM cease broadcast on 30th October 2025. In addition, Singapore radio industry leaves only Mediacorp and Singapore Press Holdings (SPH).

 

After 30th October 2025, both frequencies FM 88.3MHz and FM 98.0MHz will become empty in Singapore, Johor Bahru and Batam, but can Malaysia or Indonesia radio stations use these frequencies in Johor Bahru and Batam?

 

Actually it is NO! This is because the frequencies of upcoming defunct 88.3 Jia FM and Power 98FM are belonged to IMDA, together with FM 99.5MHz, unless IMDA Singapore let go these frequencies to Malaysia or Indonesia radio stations for radio broadcast in Johor Bahru and Batam via international coordination meeting between MCMC, IMDA and KOMINFO.

IMDA Singapore can offer the new radio players to operate these empty frequencies (88.3MHz, 98.0MHz and 99.5MHz) via tender in the future.

Goodbye to 88.3 Jia FM and Power 98FM, thanks for serving the listeners in Singapore, Batam and South Johor with the best entertainment and content during these 31 years (1994-2025).

Langkawi is the only location in Malaysia to receive Radio Tarma SW 4775kHz from Peru.

From 2024 to 2025, there was a Langkawi based Malaysia radio DXer, tuning a Peru shortwave radio station on SW 4775kHz in Langkawi, Kedah, Malaysia.

It is Radio Tarma from Peru, it operates on SW 4775kHz in Tarma City, Tarma District, Peru at 1kW transmitter power with non-directional antenna only.

I try to tune this Peru radio station on SW 4775kHz at my home in Balakong, Selangor, Malaysia, but no signal is heard.

The signal of Radio Tarma SW 4775kHz from Peru is moderately weak in Langkawi, Kedah, Malaysia, it is the furthest radio station tuned in Malaysia with the distance 19267km from Peru.

As today, Langkawi is the only Malaysia's location to receive Radio Tarma SW 4775kHz signal from Peru.

Congratulations to Sarawut DXer for successfully tuning Radio Tarma SW 4775kHz from Peru in Langkawi, Kedah, Malaysia.

Pulau Indah is likely the best location in Klang District, Selangor to tune RTM Melaka FM 102.3MHz from Gunung Ledang.

In Selangor state, RTM Melaka FM 102.3MHz from Gunung Ledang is still available in Sepang, Sungai Pelek, Tanjung Sepat and part of Morib with moderate to weak signal.

As there is no terrain between Gunung Ledang and Selangor coastal areas, this Melaka based RTM state radio station can be also received in Pulau Indah where is located in Klang District, Selangor.

In Klang, Melaka FM 102.3MHz from Gunung Ledang is not available actually, the listeners may hear adjacent channel interference noise of RTM Pahang FM 102.2MHz from Bukit Fraser and Asyik FM 102.5MHz from Gunung Ulu Kali.

On SKVE highway, from Bandar Saujana Putra to Pulau Indah, I can tune RTM Melaka FM 102.3MHz with moderate signal, while Pahang FM 102.2MHz is interfered by Melaka FM 102.3MHz.

The radio signal of Melaka FM 102.3MHz in Pulau Indah is moderately clear, I record the video from SKVE Pulau Indah toll exit to Petron Pulau Indah.

Pulau Indah is the only best location to tune Melaka FM 102.3MHz in Klang District, Selangor. 

No signal in Klang, Kapar and Meru.

* Frequency: FM 102.3MHz

* Power: 1kW

* Transmitter site: Gunung Ledang, Johor

* Receiving site: Pulau Indah, Selangor 

* Distance: 153km

Radio Diva Nusantara FM 101.1MHz from Indonesia tuned in coastal areas of Selangor, Malaysia?

After a success of tuning Radio Diva Nusantara FM 101.1MHz in Putrajaya and Serdang, Malaysia on 27th and 28th June 2025, I continue to DX this radio station signal in another locations of Malaysia.

I supposedly ended my radio DXing trip in Peninsular Malaysia on 29th June 2025 with Maran, Chenor, and Temerloh in Pahang, but as I just alerted the presence of Radio Diva Nusantara FM 101.1MHz, I decided to extend my radio DXing tour in Peninsular Malaysia until July 2025.

On 14 July 2025, I make my final radio DXpedition series in Peninsular Malaysia by monitoring the radio signal of Diva Nusantara FM 101.1MHz from Rokan Hilir, Riau Province, Indonesia by 3 locations in Selangor, Malaysia where involves Morib, Tanjung Sepat, and Batu Laut. 

No signal in Jenjarom and Banting town from this radio station on FM 101.1MHz. 

After these trips, I departed back home, but I detected this Indonesia radio station again on SKVE Highway in Telok Panglima Garang and Bandar Saujana Putra.

1. Morib (99km)

2. Tanjung Sepat (101km)

3. Batu Laut (98km)

4. SKVE Telok Panglima Garang (115km) 

5. SKVE Bandar Saujana Putra (125km)

In Morib and Tanjung Sepat (including Batu Laut), Radio Diva Nusantara FM 101.1MHz is very hard to be received its signal because it is almost zero signal if I move my receiving position. To record the signal videos, I need to stay in position carefully in order to get a better signal.

Based on preliminary check, Radio Diva Nusantara cannot be received in Pulau Indah because I only get a weak signal of RTM Traxx FM from Gunung Brinchang (Cameron Highlands) on the frequency FM 101.1MHz. When I receive Traxx FM signal on 101.1MHz in Pulau Indah, I cancel the radio signal monitoring in Port Klang because Radio Diva Nusantara FM 101.1MHz cannot be received in Port Klang, even Bagan Lalang in Sungai Pelek too.

In addition, Mu'izz Lifestyle also captured this Indonesia radio station weakly in Seremban, Negeri Sembilan, Malaysia few weeks ago.

 

==EXTRA FOOTAGE: Radio Diva Nusantara FM 101.1MHz tuned in Puchong, Selangor, Malaysia==

* LDP highway near Bandar Puteri & Puchong Intan (131km)

During Awal Muharram holiday on 27th June 2025, I attempted to receive this radio station in Puchong, but failed. Until 18th July 2025, I received Radio Diva Nusantara FM 101.1MHz signal from Indonesia successfully in Puchong near Bandar Puteri and Puchong Intan while driving back home through LDP highway (Bukit Puchong).

* SKVE Sierra 16 interchange (133km)

Radio Republik Indonesia RRI Entikong PRO-1 changed its frequency from FM 100.7MHz to FM 99.9MHz since 1st June 2025

Radio Republik Indonesia RRI Entikong PRO-1 was originally on the frequency FM 100.7MHz, but since 1st June 2025, it is on the new frequency FM 99.9MHz.

This radio station is still receivable in Serian and Tebedu, Sarawak.

In Kuching, same as former frequency FM 100.7MHz, Radio Republik Indonesia RRI Entikong PRO-1 on FM 99.9MHz would have interference noise from Lite FM 100.1MHz Bukit Djin transmitter as both are separated at 200kHz.

FM 99.9MHz is the new frequency of RRI Entikong PRO-1, effective 1st June 2025.

Sinar FM Johor Bahru frequency 87.8MHz from Gunung Pulai received in Telok Melano, Sarawak?

Telok Melano is the westernmost area in Sarawak, it takes 2 hour journey to travel from Kuching, the capital of Sawak.

About the radio coverage, Telok Melano is covered by Gunung Serapi transmitter, but listeners in this area can receive radio stations from Indonesia, meanwhile Bukit Djin transmitted Kuching radio stations cannot be received there clearly.

Surprisingly, Peninsular Malaysia based Johor radio station from Gunung Pulai can be detected its signal in Telok Melano, Sarawak.

A radio DXer from Sarawak has received Sinar FM radio signal from Gunung Pulai on FM 87.8MHz in Telok Melano, Sarawak today.

Sinar FM 87.8MHz from Gunung Pulai mainly targets South Johor, it can be tuned in Singapore and Batam.

According to the video, the signal of Sinar FM 87.8MHz is weak in Telok Melano, Sarawak. 

Although Sinar FM is available in Kuching on 102.1MHz from Bukit Djin, but it cannot be received in Sematan and Telok Melano because it operates only at 0.25kW transmitter power.

In terms of tuning distance, Sinar FM 87.8MHz becomes the furthest radio station in Telok Melano, Sarawak with 692km.

Congratulations to @Sarawakian_12 for successfully tuning Sinar FM 87.8MHz (Gunung Pulai) in Telok Melano, Sarawak today 

On 31st August 2025, I will come to Kuching for radio DXing, so I can check Johor radio stations signal in Telok Melano together.

==Sinar FM JB frequency 87.8MHz tuned in Sarawak==

* Frequency: FM 87.8MHz

* Power: 2kW

* Transmitter site: Gunung Pulai, Johor

* Receiving site: Telok Melano, Sarawak 

* Distance: 692km