In Brunei's Tutong town, I had already successfully recorded the signal video of Malaysia radio stations from Miri (Bukit Lambir) and Sabah (Bukit Tampalagus), however I also captured 3 China radio stations.
According to the investigation, these China radio stations that I tuned in Tutong, Brunei were transmitted from Guangdong and Hainan Provinces, but Sporadic E propagation.
Here are 3 China radio stations that I tuned in Tutong, Brunei on 1st December 2025 around 12pm (UTC+8).
1. Zhanjiang Traffic Music Radio 湛江交通音樂廣播 FM 102.1MHz (1888km from Zhanjiang City , Guangdong Province)
2. 海南民生廣播 Hainan Minsheng Broadcasting FM 101.0MHz (1673km from Ji Jin Ling, Qionghai City, Hainan Province)
3. Voice of South China Sea 南海之聲 FM 102.0MHz (1699km from Qionghai City, Hainan Province)
These China radio stations are zero signal in Tutong, Brunei during normal propagation.
Since 2016/17, RTM Nasional FM launched its gap filler transmitter in Long Lama, Sarawak on the frequency FM 95.5MHz, this has already caused RTM Miri FM 95.7MHz Bukit Lambir transmitter suffers strong adjacent channel interference in Long Lama.
In my opinion, it is caused by the poor frequency planning of MCMC about the frequency assignment for RTM Nasional FM's gap filler transmitter in Long Lama, Sarawak.
95.5MHz: RTM Nasional FM Long Lama
95.7MHz: RTM Miri FM Bukit Lambir
<200kHz, NOT OK>
Long Lama should be separated its frequency at least 400kHz from Bukit Lambir, instead of 200kHz or 300kHz.
When RTM Miri FM 95.7MHz Bukit Lambir transmitter is interfered by RTM Nasional FM 95.5MHz in Long Lama, Sarawak, there is no alternative frequency for Miri FM in Long Lama.
For Radio Kayan and Talidio Kenyah program, the listeners can tune alternatively on SW 11665kHz in Long Lama, alongside RTM Klik or Astro CH871.
RTM Miri FM has no gap filler transmitter in Long Lama like Nasional FM 95.5MHz and Sarawak FM 98.1MHz.
To solve this issue, as there are a lot of empty frequency slots in Long Lama, RTM Nasional FM should change its Long Lama frequency to avoid interference against RTM Miri FM 95.7MHz Bukit Lambir transmitter's coverage in Long Lama, Sarawak.
On 1st December 2025, I visited Brunei from Miri for a radio DXing activity daytrip. I conducted radio DXing activity in Bandar Seri Begawan, Muara, Tutong, Seria and Kuala Belait.
Tutong was my core location for radio DXing activity in Brunei because my main target was to monitor the radio signal of Malaysia radio stations which are transmitted from Miri Bukit Lambir and Sabah Bukit Tampalagus.
After completing my radio DXing of tuning Malaysia radio stations in Tutong, Brunei, I randomly tuned any frequencies, but I caught a China radio station loudly and clearly on the frequency FM 102.1MHz.
Initially I heard Zhejiang (浙江) on the station ID, then I searched whether any radio stations use this frequency or not. At the end, none of radio station is using FM 102.1MHz in Zhejiang Province, China, but I heard Cantonese song was being played on the radio when I switched back to FM 102.1MHz. Hence, I searched any radio station on 102.1MHz in Guangdong Province, China.
After conducting a search on Google, I finally found that FM 102.1MHz is a radio station from Zhanjiang City, Guangdong Province, China.
FM 102.1MHz that I caught in Tutong, Brunei on 1st December 2025 was Zhanjiang Traffic & Music Radio Station. (湛江交通音樂廣播電台)
The radio signal was loud and clear in Tutong, Brunei, but it went disappeared after few minutes.
* Station name: Zhanjiang Traffic Music Radio 湛江交通音樂廣播電台
* Frequency: FM 102.1MHz
* Power: (unknown)
* Transmitter site: Zhanjiang City, Guangdong Province, China (中國廣東省湛江市)
Zhanjiang Traffic Music Radio FM 102.1MHz from China became the furthest radio station that I tuned in Tutong, Brunei, but it was Sporadic E propagation signal.
Next, I also caught another two radio station from China on FM 101.0MHz and FM 102.0MHz in Tutong, Brunei before departing to Seria and Kuala Belait.
* Hainan Minsheng Broadcasting FM 101.0MHz 海南民生廣播 (1673km from Jinjiling tower in Qionghai City, Hainan Province, China)
Voice of South China Sea 南海之聲 FM 102.0MHz (1699km from Qionghai City, Hainan Province, China)
Marudi was my first town that I visited after landing Miri Airport on 30th November 2025. I came here was not only for radio DXing activity, but having handmade Marudi fried kuey teow as my breakfast.
Here is the Marudi fried kuey teow that I ate on 30th November 2025 as my late breakfast after departing from Miri Airport.
In Marudi, Bukit Lambir transmitted Miri radio stations are loud and clear, even all Brunei radio stations from Andulau transmitter can be tuned in Marudi too.
IKIM FM 104.0MHz is transmitted from Tanjong Lobang to cover Miri town, but it can be tuned weakly in Marudi.
Limbang FM 104.9MHz from Bukit Mas and Sabah VFM 102.9MHz from Bukit Tampalagus have mild and weak signal in Marudi.
The furthest radio station in Marudi is RTM Sabah VFM 102.9MHz from Bukit Tampalagus with 180km distance.
Here are the available radio stations in Marudi, Sarawak.
1. RTM Radio Klasik FM 91.9MHz
2. RTM Nasional FM 92.7MHz
3. RTM Sarawak FM 88.1MHz (Bukit Lambir)/97.9MHz (Bukit Dabei)
4. RTM Traxx FM 88.9MHz
5. RTM Ai FM 89.9MHz
6. RTM Red FM 90.7MHz
7. RTM Miri FM 95.7MHz
8. Cats FM 93.3MHz
9. Era FM Sarawak 101.3MHz
10. Sinar FM 96.6MHz
11. Hitz FM 105.8MHz
12. MY FM 103.2MHz
13. Melody FM 102.4MHz
14. IKIM FM 104.0MHz (weak signal)
15. RTB Nasional FM 93.8MHz (Brunei)
16. RTB Pelangi FM 91.0MHz (Brunei)
17. RTB Pilihan FM 96.9MHz (Brunei)
18. RTB Nur Islam FM 94.9MHz (Brunei)
19. RTB Harmoni FM 97.7MHz (Brunei)
20. Radio Al-Quran FM 99.7MHz (Brunei)
21. Kristal FM 98.7MHz (Brunei)
22. RTM Limbang FM 104.9MHz Bukit Mas (weak signal)
23. RTM Sabah VFM 102.9MHz Bukit Tampalagus (mild signal)
Bruneians who visit Marudi can still listen to Brunei radio stations loudly and clearly from Miri to Marudi.
==Radio tuning distance in Marudi, Sarawak by transmitter sites==
1. Bukit Lambir (Miri, Sarawak): 31km
2. Tanjong Lobang (Miri, Sarawak): 44km
3. Andulau (Kuala Belait & Seria, Brunei): 53km
4. Bukit Mas (Limbang, Sarawak): 99km
5. Bukit Tampalagus (Sipitang, Sabah & Labuan): 180km
RTM Limbang FM is a local radio station which mainly serves the listeners in Limbang Division, alongside relaying Wai FM Iban, RTM Limbang FM carries local programs in Malay, Lun Bawang and Bisaya from 9am to 6pm daily.
RTM Limbang FM operates with 4 frequencies, mainly:
* 104.9MHz Bukit Mas for Limbang
* 101.1MHz Bukit Tiong for Lawas
* 94.5MHz Bukit Sagan Rudang for Mendamit
* 90.5MHz Bukit Siang-Siang for Trusan
Outside Limbang Division, RTM Limbang FM 104.9MHz can be tuned in Brunei (including Kuala Belait and Seria), Labuan and part of Sabah, but it can be received on same frequency in part of Miri Division. From Bandar Seri Begawan to Miri, I can tune Limbang FM 104.9MHz in Kuala Belait, Seria, Kuala Baram, Tutong and part of Miri town, even Limbang FM 104.9MHz has weak signal in Marudi too.
Here are the radio reception videos of tuning RTM Limbang FM 104.9MHz in Miri Division where I recorded from 30th November to 1st December 2025 by following locations below:
1. Kuala Baram (115km)
2. Miri (119km)
3. Lutong (115km)
4. Marudi (99km)
No signal is available in Long Lama, regardless 104.9MHz or 94.5MHz.
Last year on 11th April 2024, I was used to tune RTM Limbang FM in Batu Niah with very mild signal, but frequency was on FM 94.5MHz from Bukit Sagan Rudang.
Overall, RTM Limbang FM 104.9MHz can be tuned in Kuala Baram, Lutong, part of Marudi, and part of Miri, meanwhile 94.5MHz has mild signal in Batu Niah.
RTM Sabah VFM 102.9MHz from Bukit Tampalagus transmitter mainly covers Sipitang, Beaufort, Sindumin and Menumbok, meanwhile it is also available in Lawas, Sundar, Trusan of Sarawak and part of Brunei (Temburong, Muara, Tutong and part of Bandar Seri Begawan).
Since April 2024, I captured its signal at the first time in Bekenu, Miri Division, Sarawak. Bekenu was marked as the furthest location in Sarawak to tune Sabah VFM 102.9MHz from Bukit Tampalagus transmitter.
Recently I successfully received RTM Sabah VFM on 102.9MHz in another 2 locations in Miri Division, Sarawak, notably Marudi and Miri Airport.
Same as Bekenu, RTM Sabah VFM 102.9MHz signal is super weak and mild in Miri and Marudi.
Sabah VFM 102.9MHz is clear in some areas between Pan Borneo Highway and Marudi due to high elevation of the road because Marudi road is hilly.
By calculating the distance from Bukit Tampalagus to 3 tuning locations, RTM Sabah VFM 102.9MHz is the furthest radio station tuned in Miri Division, Sarawak.
Here are the radio reception videos of tuning Sabah VFM 102.9MHz in Miri Division, Sarawak by following locations below:
1. Bekenu (232km)
* Video was recorded on 11th April 2024. Bekenu was the first location in Miri Division to tune Sabah VFM 102.9MHz.
2. Marudi (180km)
* Video was recorded on 30th November 2025
3. Miri Airport (204km)
* Video was recorded on 2nd November 2025 8am (UTC+8) before departure to Kuala Lumpur at 9.30am.
No signal in Long Lama and Batu Niah for this radio station.
2. RTM Nasional FM 92.7MHz Bukit Lambir (64km) and 95.5MHz Long Lama
FM 98.1MHz has audio distortion.
3. RTM Sarawak FM 98.1MHz Long Lama & 88.1MHz Bukit Lambir (64km)
4. RTM Traxx FM 88.9MHz Bukit Lambir (64km)
5. RTM Ai FM 89.9MHz Bukit Lambir (64km)
6. RTM Red FM 90.7MHz Bukit Lambir (64km)
7. RTM Miri FM 95.7MHz Bukit Lambir (64km)
Cannot be tuned at all in Long Lama town due to strong adjacent channel interference from RTM Nasional FM 95.5MHz Long Lama transmitter. No alternative frequency is available for Miri FM in Long Lama. Miri FM listeners need to tune via RTM Klik online in Long Lama. Radio Kayan/Talidio Kenyah can be tuned alternatively via Astro CH871, MYTV CH710 or SW 11665kHz in Long Lama. In my opinion, RTM Nasional FM should change its Long Lama frequency to avoid interference against Miri FM 95.7MHz. In Long Lama, Miri FM has no local transmitter like Nasional FM and Sarawak FM. Both radio stations Nasional FM and Sarawak FM in Long Lama tower are linked from satellite feed, meanwhile Miri FM has no C band satellite feed to link studio feed to the remote transmitter site.
8. Cats FM 93.3MHz Bukit Lambir (64km)
9. Hitz FM 105.8MHz Bukit Lambir (64km)
10. Era FM Sarawak 101.3MHz Bukit Lambir (64km)
11. MY FM 103.2MHz Bukit Lambir (64km)
12. Melody FM 102.4MHz Bukit Lambir (64km)
13. Sinar FM 96.6MHz Bukit Lambir (64km)
14. RTB Nasional FM 93.8MHz Andulau Brunei (96km)
15. RTB Harmoni FM 97.7MHz Andulau Brunei (96km)
16. RTB Pilihan FM 96.9MHz Andulau Brunei (96km)
17. RTB Nur Islam FM 94.9MHz Andulau Brunei (96km)
18. RTB Pelangi FM 91.0MHz Andulau Brunei (96km)
RTM radio stations from Bukit Lambir are moderately weak in Long Lama, except Miri FM 95.7MHz, but commercial radio stations such as Hitz 105.8, Era Sarawak 101.3, MY FM 103.2, Cats FM 93.3, Sinar FM 96.6, and Melody FM 102.4 are extremely weak there.
Brunei radio stations from Andulau have very mild signal in Long Lama, Sarawak, but only for Radio Televisyen Brunei RTB radio channels. I need to find a correct position to capture those signals.
Kristal FM 98.7MHz and Al-Quran Radio FM 99.7MHz have no signal in Long Lama, Sarawak.
Limbang FM 104.9MHz (Bukit Mas), Bintulu FM 97.5MHz (Bukit Setiam), Miri FM 95.1MHz (Bukit TT844 Suai) and Sabah VFM 102.9MHz (Bukit Tampalagus) signals are completely zero in Long Lama, Sarawak.
Do you know? The Sabah radio stations RTM Sabah FM 97.9MHz and Sabah VFM 102.9MHz available part of Brunei where are transmitted from Bukit Tampalagus.
Bukit Tampalagus transmitter mainly covers Sipitang, Beaufort and Menumbok, but the signal can reach Lawas, Sundar and Trusan in Sarawak, as well as part of Brunei.
I visited Brunei daytrip on 1st December 2025 by driving a car from Miri, Malaysia in the morning, then departed back to Miri in the afternoon.
In Brunei, RTM Sabah VFM 102.9MHz can be tuned clearly in Muara, but signal is not so clear in Bandar Seri Begawan and Tutong. From Muara to Sungai Tujoh immigration checkpoint on the highway, RTM Sabah VFM 102.9MHz can be only tuned up to Tutong, then signal goes disappeared after Tutong when I drove to Kuala Belait.
No signals are available in Seria and Kuala Belait for Sabah VFM 102.9 and Sabah FM 97.9.
I managed to tune RTM Sabah VFM 102.9MHz in 3 Brunei locations, together with RTM Sabah FM 97.9MHz.
Here are the locations where I tuned RTM Sabah VFM 102.9MHz and Sabah FM 97.9MHz in Brunei.
1. Bandar Seri Begawan (81km)
2. Muara (64km)
3. Tutong (114km)
RTM Sabah VFM 102.9MHz is clearer than Sabah FM 97.9MHz in Bandar Seri Begawan and Tutong because Sabah FM 97.9MHz has adjacent channel interference noise of Nasional FM 98.1MHz Bukit Mas transmitter.
In Muara, both radio stations are loud and clear.
Dusun is the minority ethnic in Brunei, Dusun people can tune Sabah VFM on 102.9MHz in Brunei (except Seria and Kuala Belait) daily from 9pm to 12am for Dusun language broadcast.
When I was in Brunei, I tuned to Kadazan and Chinese languages broadcast on Sabah VFM 102.9MHz from 8am to 12pm.
Muara, Tutong, Bangar (Temburong) and part of Bandar Seri Begawan are the only locations in Brunei where I can tune Sabah FM 97.9MHz and Sabah VFM 102.9MHz.
