Under Indonesia broadcast regulation, the frequencies FM 107.7MHz, FM 107.8MHz and FM 107.9MHz are only used for low power radio broadcast (community and campus radio stations)

In Indonesia, the broadcast regulation authority, known as KPI (Komisi Penyiaran Indonesia) or Indonesia Broadcasting Commission had regulated that the frequency slot FM 107.7MHz, FM 107.8MHz and FM 107.9MHz as low power radio transmission for community and campus radio broadcasters in the country since 2002.

Unlike Malaysia where FM 107.7MHz is allowed to be used for higher power radio transmission (eg: Negeri FM Gunung Ledang 1kW), I checked all frequency spectrum list of Indonesia radio stations from FM 107.7MHz to 107.9MHz, most of the radio stations transmitter power are not more than 0.05kW (50W).

The main reason of Indonesia radio stations (notably high power radio transmission) are not allowed to allocate on 107.7, 107.8 and 107.9 is because interference to airband.

The frequency after FM 107.5MHz are actually nearby airband (VHF 108-137MHz). In Indonesia, many aviation transmissions are occupying the frequency within 108-130MHz.

The interference from radio broadcast on those frequencies (107.7, 107.8 and 107.9) can led flight incident in Indonesia because signal of 107.7, 107.8 and 107.9 leaked to airband frequency. In addition, as KPI has reserved these frequency for community radio stations, if one of radio station operates on these frequencies on high power transmission, it can cause interference to other community radio stations, alongside the airband.

Under the regulation of Indonesia Broadcasting Commission (KPI- Komisi Penyiaran Indonesia), the radio stations which use FM 107.7MHz, FM 107.8MHz and FM 107.9MHz have to follow the transmission criteria below:

1. Maximum antenna height: 20 meters

2. Maximum transmitter power: 50 watts (50W)

3. Maximum transmission distance: 2.5 kilometers per radius

The Indonesia radio frequency regulation of FM 107.7MHz-107.9MHz is same with Australia frequency regulation where FM 87.5MHz-FM 88.0MHz are reserved for low power radio stations (also known as narrowcast).

Previously I had received Radio Jawa/Raja FM 107.7MHz from Medan, Indonesia in several Malaysia locations such as Bagan Datuk, Teluk Intan and Kinta Highlands, despite Radio Raja FM 107.7MHz is low power community radio station in Medan, but I received it in Malaysia under tropospheric propagation.

List of Radio Republik Indonesia (RRI) transmitters and repeaters in Riau Province, Indonesia. (adjacent to Malaysia border)

 ==RRI Pekanbaru PRO-1==

* FM 99.1MHz Pekanbaru (main)

* FM 92.6MHz Pasir Pengayaran, Rokan Hulu

* FM 93.0MHz Dumai

* FM 95.1MHz Selat Panjang, Pulau Meranti

* FM 96.5MHz Sungai Pakning

* FM 98.5MHz Baserah

* FM 99.3MHz Tembilahan

* FM 99.5MHz Siak

==PRO-2 and PRO-4==

* FM 88.4MHz: PRO-2 Pekanbaru

* FM 95.9MHz: PRO-4 Pekanbaru

==PRO-3==

* FM 89.8MHz: Bengkalis

* FM 89.2MHz: Pekanbaru

==RRI Bengkalis PRO-1==

* FM 90.6MHz

List of Radio Republik Indonesia (RRI) transmitters and repeaters in North Sumatera Province (SUMUT), Indonesia. (adjacent to Malaysia border)

 ==RRI Medan PRO-1==

* FM 94.3MHz Medan (main transmitter)

* FM 89.2MHz Panyabungan

* FM 90.0MHz Natal

* FM 90.6MHz Rantau Prapat

* FM 92.0MHz Parapat

* FM 96.0MHz Tarutung

* FM 96.1MHz Pematangsiantar

* FM 96.5MHz Sidikalang

* FM 99.0MHz Kabanjahe (Karo) 

* FM 99.0MHz Samosir

* FM 99.3MHz Kisaran

* FM 99.4MHz Sibuhan

==RRI Sibolga PRO-1==

* FM 97.2MHz Sibolga (main)

* FM 99.9MHz Padang Sidempuan

==PRO-2, PRO-4 Sumut==

* RRI Medan PRO-2 FM 92.4MHz

* RRI Medan PRO-4 FM 88.4MHz

* RRI Sibolga PRO-2 FM 94.8MHz

* RRI Gunung Sitoli PRO-2 FM 101.3MHz

==PRO-3 Sumut==

* FM 88.8MHz Medan

* FM 90.3MHz Gunung Sitoli

* FM 103.1MHz Sibolga

RTM Selangor FM 100.9MHz dari Gunung Ulu Kali boleh didengari di Rokan Hilir, Wilayah Riau, Indonesia, adakah Pahang FM 107.5MHz boleh diterima di Indonesia, walaupun ia juga dipancar dari Gunung Ulu Kali?

 

Pada 17hb November 2020, terdapat seorang pengguna YouTube bernama Noprio Sandi memuat naik rakaman video dimana dia menerima siaran radio dari Malaysia di Rokan Hilir, Wilayah Riau, Indonesia.

Dalam video tersebut, siaran RTM Selangor FM 100.9MHz yang dipancar dari Gunung Ulu Kali sangat jelas diterima di Rokan Hilir, Wilayah Riau, Indonesia, manakala RTM Negeri FM 92.6MHz dari Gunung Telapak Burok masih boleh diterima di tempat yang sama, cuma kurang jelas isyaratnya.

Selangor FM 100.9MHz dari Gunung Ulu Kali boleh diterima jelas di sebahagian kawasan timur wilayah Riau dan Sumut (Sumatera Timur), Indonesia kerana pemancarannya menghala ke arah barat dari Gunung Ulu Kali. Selain itu, stesen radio seperti BFM 89.9, Hitz FM 92.9MHz, Raaga FM 99.3MHz jelas juga di Rokan Hilir kerana stesen radio ini memancar dengan antenna OMNI-directional.

Selangor FM 100.9MHz dipancar dari Gunung Ulu Kali dengan kuasa pemancar 2kW. Selain itu, RTM Pahang FM 107.5MHz juga dipancar dari Gunung Ulu Kali dengan kuasa pemancar yang sama dengan Selangor FM 100.9MHz.

Oleh kerana, Selangor FM 100.9MHz dan Pahang FM 107.5MHz di Gunung Ulu Kali mempunyai liputan berbeza kerana arah pemancaran tidak sama atas sebab jenis antena yang berbeza. Saya berasa musykil (hairan) sama ada Pahang FM 107.5MHz boleh diterima di Rokan Hilir, Dumai, Pulau Rupat dan kawasan timur wilayah Sumut (Sumatera Utara) atau tidak.

Jika melihat lagi video Noprio Sandi, isyarat frekuensi Pahang FM 107.5MHz tidak dikesan pada radio kereta dia (Model: Toyota Cayla B400) di Rokan Hilir, Wilayah Riau, Indonesia, ia mungkin bermakna siaran Pahang FM 107.5MHz tidak diterima di Indonesia seperti Selangor FM 100.9MHz.

Belum ada orang Indonesia di wilayah perbatasan Riau dan Sumatera Utara menerima isyarat Pahang FM 107.5MHz lagi buat masa ini, tetapi saya boleh membuat ramalan mengenai penerimaan siaran Pahang FM 107.5MHz di Indonesia.

Di kawasan Selangor seperti Tanjung Sepat, Sepang, Kuala Langat, Puchong, Dengkil, Sungai Pelek dan Seri Kembangan, siaran Pahang FM 107.5MHz lemah kurang jelas sebenarnya. Saya mencuba isyarat Pahang FM 107.5MHz di Sungai Pelek dan Tanjung Sepat dimana terletak di kawasan pesisir pantai Selangor yang bersebelahan dengan Indonesia (Sumatra), isyarat sangat lemah berbanding dengan kawasan Shah Alam dan Petaling Jaya.

Oleh kerana siaran Pahang FM 107.5MHz lemah di kawasan pesisir pantai Selangor, saya berasa bahawa siaran Pahang FM 107.5MHz tidak akan diterima di Indonesia yang bersempadan dengan Semenanjung Malaysia. Walaupun kawasan Rokan Hilir, Pulau Rupat dan Dumai mungkin boleh menerima, tetapi siaran Pahang FM 107.5MHz tetap lemah dan pendengar cuma boleh menerima sedikit isyarat sahaja.

Di kawasan Kapubaten Rokan Hilir seperti Bagan Batu yang berhampiri dengan sempadan wilayah Sumatera Utara (Kabupaten Labuhan Batu Selatan), Pahang FM 107.5MHz mungkin diganggu oleh Citra Pendawa FM 107.7MHz dari Cikampak, Labuhan Batu Selatan, Sumatera Utara.

Oleh kerana Citra Pendawa FM 107.7MHz di Cikampak adalah stesen radio komuniti (Bahasa Indonesia: Radio Komunitas), gangguan pemancaran 107.7 kepada 107.5 mungkin kurang kerana kuasa pemancar Citra Pendawa FM rendah.

 

Atas sebab Pahang FM 107.5MHz dari Gunung Ulu Kali hanya meliputi Pahang Barat sahaja, berkemungkinan besar Pahang FM 107.5MHz tidak dapat diterima di Indonesia seperti Selangor FM 100.9MHz.

(English translation post from KOMINFO) Indonesia-Malaysia are to coodinate FM frequency channel in bordering areas.

Bekasi, Kominfo – Indonesia (KOMINFO) and Malaysia (MCMC/SKMM) are to discuss regarding the frequency coordination of FM radio channels in the border areas of eastern Sumatra and the Malacca Peninsula (eg: west coastal areas of Melaka, Johor, Perak, Selangor and Negeri Sembilan), as well as in the northern part of Kalimantan on the border with Sabah, Sarawak.

"These are the two main agendas in the Indonesia-Malaysia bilateral meeting. With this coordination, state administrations can maintain each other's radio stations and the use of frequencies will continue to run without any interference," explained the Deputy Head of the Public Service and Spectrum Outlook (PSSO) Team. Notification Division of the Directorate of Resource Management, Yudhistira Prayoga in the 9th Meeting of the Special Task Force on Broadcasting and Mobile Services at the Border of the Republic of Indonesia and Malaysia which took place in a hybrid manner from Bekasi, Thursday (04/08/2022).

In the hybrid meeting which took place two days since Wednesday (03/08/2022), the two countries agreed to seek frequency harmonization. In addition, two other agendas were also discussed bilaterally, namely channel updates and digital TV implementation and Analog Switch Off (ASO) issues, as well as interference with channel 32 UHF frequencies in Riau (Dumai and Sungai Pakning), where Indonesian digital TV broadcasts were disrupted by Malaysian digital TV broadcasts (MYTV CH32 Bukit Tampin/Gunung Ledang).

Prayoga admits that the obstacle that often arises in frequency coordination is the difference between the frequency channels that have been agreed with Malaysia and the conditions that occur in the field.

"Information on frequency use and interference in the field needs to involve friends in the field (central and UPT), there are several agendas that may not be finished now, because they still need time for analysis and evaluation," he explained.

Also present were representatives from the Secretariat General of the Ministry of Communication and Information (Kemkominfo). From the Directorate General of Resources and Equipment of Post and Information Technology (Ditjen SDPPI), there were representatives from the Directorate of Resource Management, Directorate of SDPPI Control, Technical Implementation Units (UPT) Pekanbaru, Pontianak and Tanjung Selor

Meanwhile, the Malaysian delegation, which was present through online media directly from their country, was led by Puan Yushida. In his remarks, the Head of the Malaysian Delegation hoped that an agreement would be made objective and beneficial for both countries.

The two neighboring countries had previously met in February 2022, resulting in an agreement on fixed channels in the future that would facilitate long-term planning, licensing, and registration of radio stations from the two countries.

This special meeting to discuss broadcasting and mobile services in the border area between Indonesia and Malaysia is part of the Joint Committee on Communication (JCC). Indonesia and Malaysia plan to hold an offline JCC meeting around September 2022. Both Malaysia and Indonesia will prepare a JCC delegation and also invite several related operators. From this meeting, it is hoped that various problems and agreements on the radio frequency spectrum of the two countries will be resolved later.

(Source and courtesy of KOMINFO Indonesia)

Alongside FM 107.5MHz (Gunung Ulu Kali), RTM Pahang FM signal is detected in Selangor state on 102.2MHz (Fraser's Hill), 100.3MHz (Gunung Brinchang), 92.0MHz (Bukit Senggora) & 95.5MHz (Bukit Sulai).

 

RTM Pahang FM is available in Selangor and Kuala Lumpur via the frequency FM 107.5MHz from Gunung Ulu Kali, despite its primary targeting area is West Pahang such as Bentong, Kuala Lipis, Temerloh, Bera, Keratong and Chenor. Due to directional antenna beams to east direction from Gunung Ulu Kali, Pahang FM 107.5MHz signal is less clear in Kuala Lumpur and Selangor.

 

While Pahang FM can be tuned on FM 107.5MHz from Gunung Ulu Kali in Selangor and Kuala Lumpur, however its other frequencies can be detected in Selangor such as:

 

1. FM 102.2MHz Bukit Fraser

2. FM 100.3MHz Cameron Highlands

3. FM 92.0MHz Bukit Senggora

4. FM 95.5MHz Bukit Sulai

 

The frequencies above are weak transmission, detected in some Selangor areas. Here are the listed locations by transmitters.

 

1. FM 102.2MHz Bukit Fraser (Raub)

- Signal is available (but not clear) in Hulu Selangor, Rawang, Kuala Selangor, Batang Berjuntai and Shah Alam. However, weak signal can be detected in Subang Jaya, Puchong, Putrajaya, Seri Kembangan, Kajang and Kuala Lumpur. Interference with Melaka FM 102.3MHz from Gunung Ledang is detected in Kajang and Seri Kembangan, meanwhile interference with Raaga FM 102.1MHz from Bukit Larut is detected in Kuala Selangor and Tanjong Karang.

 

2. FM 100.3MHz Gunung Brinchang (Cameron Highlands) 

- Signal is detected in Kuala Selangor, Sabak Bernam, Sungai Besar, and Sungai Ayer Tawar, it has interference with MY FM 100.2MHz from Bukit Larut and Traxx FM 100.1MHz from Gunung Ulu Kali. 

 

3. FM 92.0MHz Bukit Senggora (Maran)

- Signal is detected in Seri Kembangan at a highway of Jalan Sungai Besi between a slope and the Acre by Farm Fresh, this usually happens when none of local radio stations occupies the frequency on FM 92.0MHz. Pahang FM 92.0MHz from Bukit Senggora is not available in this location when Nasional FM Hulu Langat transmitter 92.0MHz is switched on. Currently Nasional FM 92.0MHz Hulu Langat transmitter is permanently 

off air.

 

 

4. FM 95.5MHz Bukit Sulai (Gambang) 

- Signal is detected in Seri Kembangan at a highway of Jalan Sungai Besi between a slope and the Acre by Farm Fresh, together with FM 92.0MHz from Bukit Senggora. Adjacent channel interference with Nasional FM 95.3MHz from Gunung Ulu Kali (local transmitter) is detected when tuning Pahang FM 95.5MHz from Bukit Sulai from UPM to UNITEN on Jalan Sungai Besi highway.

 

Alongside FM 107.5MHz as main listening frequency in Selangor and Kuala Lumpur, 102.2, 95.5 and 92.0 are weak frequencies, meanwhile 104.1 Bukit Pelindung is unavailable because Best FM is using 104.1MHz in Gunung Ulu Kali.

List of Indonesia FM radio stations (Nunukan, North Kalimantan) in Tawau, Sabah, Malaysia

Tawau is a city located in Southeast Sabah, Malaysia. It is also located at the border nearby Indonesia (Nunukan), however due to the strategic location, Indonesia radio stations are available in Tawau, Sabah, Malaysia, transmitted from Nunukan.

Here is the list of Indonesia FM radio stations from Nunukan, North Kalimantan where are available in Tawau, Sabah, Malaysia.

- FM 88.8MHz Radio Ambalat FM

- FM 89.6MHz Radio Republik Indonesia RRI Nunukan PRO-2

- FM 90.4MHz Radio SIP FM

- FM 95.5MHz Radio Republik Indonesia RRI PRO-3 (Sebatik Island)

- FM 101.1MHz Radio Suara Tribun Indonesia

- FM 102.2MHz Radio Devia FM

- FM 103.0MHz Radio Maroni FM

- FM 103.8MHz Radio SDB2

Radio Republik Indonesia RRI Nunukan PRO-1 FM 97.1MHz is unavailable in Tawau due to Traxx FM 97.1MHz local transmitter from Gunung Andrassy. Co-channel interference happens due to poor frequency planning

Indonesia DVB-T2 TV channels and frequencies list available in Malaysia (normal propagation, NOT tropospheric or Sporadic E).

In Malaysia, some of locations nearby international border can receive TV and radio signals from neighboring countries such as Singapore, Thailand, Brunei and Indonesia.

Previously I listed down all Thailand DVB-T2 transmitter coverage in Malaysia bordering areas, now I will list down all Indonesia DVB-T2 transmitter list nearby Malaysia border with coverage which are available in Malaysia.

1. Sungai Pakning in Bengkalis, Riau Province (GPS: 1.332N, 102.152E)

- Frequency: UHF 530MHz (CH28)

- Transmitter power: 5kW

- Tower height: 100m 

- Available MUX: TVRI

- Coverage availability in Malaysia: Part of coastal areas in Merlimau, Melaka and Muar, Johor

Note: TVRI on CH32 UHF 562MHz from Sungai Pakning is not available in Melaka due to MYTV CH32 UHF562MHz from Bukit Tampin and Gunung Ledang. 

 

2. Batam, Riau Islands Province

- Frequency: UHF 690MHz (CH48), UHF 674MHz (CH46), UHF 658MHz (CH44) and UHF 642MHz (CH42)

- Available MUX: TVRI (CH48), TransTV (CH46), RCTI (CH44) & SCTV (CH42)

- Coverage availability in Malaysia: Johor Bahru, Kota Tinggi, Bandar Penawar, Nusajaya, Pontian, Penggerang, Ulu Tiram and Pasir Gudang

3. Sanggau Ledo, West Kalimantan Province (GPS: 1.169N, 109.723E)

- Frequency: UHF 530MHz (CH28), UHF 578MHz (CH34) & UHF 674MHz (CH46)

- Power: 2kW

- Tower height: 65m 

- Available MUX: TVRI

- Coverage availability in Malaysia: Part of Lundu and Bau, Sarawak

4. Balai Karangan, West Kalimantan (0.808N, 110.422E)

- Frequency: UHF 562MHz (CH32)

- Power: 2kW

- Available MUX: TVRI

- Coverage: Tebedu in Serian Division, Sarawak (Postcode: 94760)

Tebedu is located nearby Malaysia-Indonesia border in Southwestern Sarawak.

 

5. Nunukan, North Kalimantan

- Frequency: UHF 578MHz (CH34), UHF 642MHz (CH42), UHF 610MHz (CH38) & UHF 530MHz (CH28)

- Available MUX: TVRI (CH34), Metro TV (CH42), TVOne (CH38) & Trans7 (CH28)

- Coverage availability in Malaysia: Few locations in Tawau District, Sabah (Kalabakan, Merotai & Serudong)

Listed Indonesia transmitters above are located nearby Malaysia border, information is taken from Sinyal TV Digital application, minimum field strength of coverage map is 47dBμV/m. Coverage map is generated through Nautel RF toolkit (presumed) with transmitter parameter information from Sinyal TV Digital application.

RTM Asyik FM Negeri Sembilan frequency proposal (FM 95.5MHz Gunung Telapak Burok at 0.25kW power)

 

The Orang Asli radio station, Asyik FM currently has no Negeri Sembilan tuning frequency, however it relies on FM 102.5MHz Gunung Ulu Kali, FM 91.1MHz Kuala Lumpur Tower and FM 95.6MHz Gunung Ledang in part of Negeri Sembilan.

 

Asyik FM can be tuned in part of Negeri Sembilan via existing transmitters by following locations below: 

 

1. FM 102.5MHz Gunung Ulu Kali: Mantin, Labu, Simpang Pertang, Port Dickson, Lenggeng, Linggi, and part of Seremban

2. FM 91.1MHz Kuala Lumpur Tower: Nilai

3. FM 95.6MHz Gunung Ledang (low power transmission): Gemencheh, Rompin and part of Jempol

 

In fact, there are many Orang Asli villages in Negeri Sembilan. The Orang Asli villages are mostly located in Jelebu, Kuala Pilah, Jempol and East Seremban districts. These areas can't receive Asyik FM via existing frequencies. Therefore, Asyik FM needs to set up a transmitter (0.25kW is sufficient) in Gunung Telapak Burok to cover Orang Asli areas in Negeri Sembilan, mainly districts in Kuala Pilah, Jelebu and Seremban.

 

The frequency availability in Gunung Telapak Burok is getting limited nowadays which cause Asyik FM or other radio broadcasters getting more difficult to get the new frequencies. Coincidentally, I notice FM 95.5MHz is also an empty frequency in Seremban and Jelebu. So, FM 95.5MHz becomes proposed frequency for Asyik FM's Gunung Telapak Burok transmission.

 

==Proposed transmission parameter for Asyik FM in Negeri Sembilan==

* Frequency: FM 95.5MHz

* Power: 0.25kW

* Transmitter site: Gunung Telapak Burok, Negeri Sembilan

* Antenna height: (same with other RTM radio stations)

* Antenna gain: 6.0dBd (3 bay array dipole antenna, each bay 2.0dBd) 

* Antenna model: SIRA FM-04 or equivalent

* Antenna beaming angle: 30 DEG 

 

==Radio frequency analysis between RTM Asyik FM 95.5MHz (Gunung Telapak Burok) and adjacent stations==

 

95.3MHz: Nasional FM Gunung Ulu Kali

95.5MHz: Asyik FM Gunung Telapak Burok (0.25kW)

<200kHz, OK>

 

95.4MHz: MY FM Gunung Pulai

95.5MHz: Asyik FM Gunung Telapak Burok (0.25kW)

<100kHz, OK>

 

95.5MHz: Pahang FM Bukit Sulai

95.5MHz: Asyik FM Gunung Telapak Burok (0.25kW)

<0kHz, OK>

 

95.5MHz: Asyik FM Gunung Telapak Burok (0.25kW)

95.6MHz: Asyik FM Gunung Ledang (0.25kW)

<100kHz, AFN- Adjacent Frequency Network> 

 

95.5MHz: Asyik FM Gunung Telapak Burok (0.25kW)

95.7MHz: Negeri FM Bukit Tampin

<200kHz, OK>

 

95.5MHz: Asyik FM Gunung Telapak Burok (0.25kW)

95.8MHz: Fly FM Gunung Ulu Kali

<300kHz, OK> 

 

Based on RF analysis, the transmission of Asyik FM 95.5MHz from Gunung Telapak Burok will not cause any interference to existing radio stations' coverage because proposed parameter for Asyik FM is just low power transmitter as much 0.25kW.

 

In North Johor, Asyik FM is on 95.6MHz from Gunung Ledang, main targeting coverage is Chaah, Labis and Bekok in Segamat district, transmitter power is 0.25kW. The proposed frequency FM 95.5MHz from Gunung Telapak Burok will not cause interference to Asyik FM 95.6MHz coverage because both are using low power transmitters. Despite Asyik FM 95.5MHz and 95.6MHz will have interference each other in Jempol, Negeri Sembilan, but it is not an issue because both are same radio stations, so it is considered as self-interference and AFN (adjacent frequency network), listeners can tune vice-versa with 100kHz frequency step.

 

In addition, Asyik FM 95.5MHz Gunung Telapak Burok will not cause interference to Pahang FM 95.5MHz Bukit Sulai and Negeri FM 95.7MHz Bukit Tampin due to different coverage areas and antenna configuration. Negeri FM 95.7MHz from Bukit Tampin covers only Tampin, Rembau and Kota, but proposed Asyik FM 95.5MHz Gunung Telapak Burok does not cover Rembau. Pahang FM 95.5MHz Bukit Sulai covers only Gambang and Pekan where Kuantan frequency FM 104.1MHz from Bukit Pelindung has co-channel interference with Best FM 104.1MHz from Gunung Ulu Kali. 

 

Gunung Telapak Burok radio transmission will not overspill to Gambang and Pekan (Chini).

 

I also sketch the antenna pattern map for Asyik FM 95.5MHz Gunung Telapak Burok transmission, based on SIRA FM-04 dipole antenna and FM-07 Yagi antenna diagram, the drawings above are going to be sent to RTM engineering and planning team via email as the proposal.

 

SIRA FM-07 in different angle at 30DEG and 60DEG, meanwhile SIRA FM-04 is at 30DEG.

 

Among all 3 antenna pattern drawings, SIRA FM-04 at 30DEG is the best because Asyik FM reach more coverage in Negeri Sembilan on FM 95.5MHz from Gunung Telapak Burok, compare to SIRA FM-07 drawings.

 

To avoid interference to the existing adjacent stations, SIRA FM-07 at 60DEG angle drawing is proposed.

 

Although I think SIRA FM-04 at 30DEG antenna pattern drawing is the best for Asyik FM 95.5MHz Gunung Telapak Burok transmission, but I send all the drawings to RTM via email as the proposal, so the engineering team can evaluate the proposed antenna pattern. 

 

The proposal was actually made in March 2019 (a month before I joined the broadcast transmitter equipment company).

 

I hope RTM will consider this proposal, so Asyik FM can reach Negeri Sembilan via FM frequency transmission.

 

==Targeting coverage areas of Asyik FM 95.5MHz Gunung Telapak Burok transmitter (0.25kW)==

* Seremban

* Pantai

* Kuala Klawang

* Titi

* Simpang Durian

* Simpang Pertang

* Serting 

* Batu Kikir

* Bandar Seri Jempol

* Bahau

* Kuala Pilah

* Juasseh

* Johol (Dangi) 

* Seri Menanti

* Tanjong Ipoh

* Mantin

* Lenggeng

Hot FM 87.7MHz dari Kota Kinabalu, Sabah (Bukit Karatong) boleh diterima di Filipina?

 

FM 87.7MHz ialah frekuensi Hot FM di Kota Kinabalu, dipancar dari Bukit Karatong. Ia meliputi dari Beaufort ke sebahagian Kota Belud.

 

Dua minggu lepas, seorang peminat radio yang berasal dari Filipina menerima siaran Hot FM pada frekuensi 87.7MHz dari Kota Kinabalu di negara Filipina.

 

Pengguna YouTube bernama "Marvin brony and dxer" merakam isyarat Hot FM 87.7MHz di Sogoy, Wilayah Sorsogon, Filipina dan menerbit rakaman audio tersebut di YouTube.

Jarak penerimaan siaran Hot FM 87.7MHz di tempat dia adalah 1135km. Sogoy terletak di Wilayah Sorsogon, Filipina, 484km dari Manila (ibu negara Filipina).

 

- Frekuensi: FM 87.7MHz

- Kuasa pemancar: 2kW

- Tempat pemancar: Bukit Karatong, Sabah, Malaysia

- Tempat penerimaan isyarat: Sogoy, Perbandaran Castilla, Wilayah Sorsogon, Filipina

- Jarak: 1135km 

 

Siaran Hot FM 87.7MHz dari Kota Kinabalu di Sogoy, Filipina adalah jelas tanpa gangguan oleh siaran tempatan. Hakikatnya, isyarat Hot FM 87.7MHz yang diterima di Filipina adalah pemancaran Sporadic E dimana isyarat tersebut bukan selalu boleh diterima jauh di Filipina.

 

Memang mengagumkan.

MYTV will launch DVB-T2 transmitter in Gunung Telapak Buruk and TM Kangar tower after Dataprep wins the tender.

 

On 2nd August 2022, Dataprep Holdings Berhad won a RM 5.4 million contract from MYTV to set up and provide DTT transmission services infrastructure.

The managed services required to design, plan, set up, supply, delivery, install and commissioning DTT transmission system services in Gunung Telapak Burok and TM Kangar.

Based on what I understand regarding the news reported by KLSE and The Edge, MYTV will launch DTT (digital terrestrial television) transmitters in Gunung Telapak Burok and TM Kangar within this year, the transmission system will be supplied and installed by Dataprep Berhad.

Currently the coverage areas of Gunung Telapak Burok and TM Kangar are covered by DTH (Direct To Home) signal from Asiasat-9. 

I have been waiting for MYTV Gunung Telapak Burok DTT transmission for so long actually. In 2019, I felt disappointed over MYTV didn't launch Gunung Telapak Burok transmitter in related to an impact of the dispute between TM and MYTV in 2018.

The wait is to be over. 

About the frequencies, as most of the transmitters in west coast are using CH43 (UHF 650MHz) and CH45 (UHF 666MHz), so I also suggest MYTV to use these frequencies in TM Kangar and Gunung Telapak Burok.

When MYTV uses CH43 and CH45 in Gunung Telapak Burok and TM Kangar, MYTV runs single frequency network transmission from Perlis to Negeri Sembilan.

Somebody suggests to use same frequency with Bukit Tampin CH30 (UHF 546MHz) and CH32 (UHF 562MHz) in Gunung Telapak Burok, but I don't agree because CH32 will cause interference to TVRI Dumai DTT transmission CH32. 

Meanwhile in Perlis, MYTV can use same frequency with Gunung Raya and Gunung Jerai in TM Kangar as they're using CH43 and CH45.

When MYTV Gunung Telapak Burok DTT transmission is switched on, I can run DVB-T2 DX at my home, unless MYTV Gunung Telapak Burok frequencies are not same with Gunung Ulu Kali, KL Tower and Bukit Sungai Besi.

With Gunung Telapak Burok transmitter, MYTV can reach Seremban, Kuala Pilah, Jelebu, Jempol, Port Dickson, Johol and several areas in Pahang/Selangor. In addition, some Jerantut areas in Pahang may receive MYTV signal from Gunung Telapak Burok with moderate reception.

The reason behind MYTV launches Gunung Telapak Burok and TM Kangar transmitters recently is because the covering areas of these towers are actually suburban and urban areas. However, Gunung Telapak Burok and TM Kangar are not gap filler transmitter sites.

Besides that, some of Seremban areas can't receive MYTV DTT services from Bukit Tampin, Bukit Sungai Besi and Gunung Ulu Kali, so Seremban needs Gunung Telapak Burok transmission.

I'm feeling excited to hear such news. Now I'm waiting what are the frequencies of MYTV in Gunung Telapak Burok.

* Gunung Telapak Burok: UHF 650MHz (CH43 MUX2) & UHF 666MHz (CH45 MUX1) [sme frequencies with Gunung Ulu Kali, Menara KL, Bukit Sungai Besi]

* Kangar: UHF 650MHz (CH43 MUX2) & UHF 666MHz (CH45 MUX1) [same frequencies with Gunung Jerai, Gunung Raya]

RTM Asyik FM can launch a transmitter in Gunung Kledang to cover Orang Asli areas in Central Perak (Ipoh, Gopeng, Kampar), and Lojing Highlands, Kelantan. Proposed frequency: FM 107.4MHz.

 

In Perak, RTM Asyik FM has only a transmitter, FM 93.1MHz from Bukit Ladang Teh, just covers Lenggong, meanwhile listeners other Perak areas rely on FM 105.1MHz from Cameron Highlands and FM 102.5MHz from Gunung Ulu Kali, but reception of both frequencies are not clear.

 

There are many Orang Asli in Central Perak, such as Gopeng, Kampar, Kampung Kepayang, Langkap, Sungai Siput (U), and Ulu Kinta, however these locations cannot receive Asyik FM via frequency transmission. Although FM 105.1MHz from Cameron Highlands can be received partially there, but reception is very poor. 

 

In my opinion, RTM Asyik FM can launch Ipoh frequency (Gunung Kledang) to cover Orang Asli areas in Central Perak. 

 

==Proposed parameter of Asyik FM Ipoh frequency==

- Frequency: FM 107.4MHz

- Power: 0.5kW

- Transmission site: Gunung Kledang, Ipoh, Perak

- Antenna type: Directional Dipole

- Targeting areas: Ipoh, Chemor, Sungai Siput (U), Gopeng, Tanjung Rambutan, Teronoh, Kampar, Batu Gajah, Simpang Pulai, Temoh, Kampung Kepayang, Ulu Kinta, Chenderiang (partly), Tapah (partly), Bidor (partly) and Lojing Highlands (partly)

- Antenna beaming angle: 75DEG

==RF analysis==

107.1MHz: Nasional FM Bukit Larut

107.4MHz: Asyik FM Gunung Kledang 

<300kHz, OK>

107.2MHz: Kelantan FM Dabong

107.4MHz: Asyik FM Gunung Kledang

<200kHz, OK>

107.4MHz: Asyik FM Gunung Kledang

107.5MHz: Pahang FM Gunung Ulu Kali (West Pahang only)

<100kHz, OK>

107.4MHz: Asyik FM Gunung Kledang

107.6MHz: goXUAN FM Bukit Penara

<200kHz, OK>

 

Based on RF analysis above, usage of the frequency FM 107.4MHz in Gunung Kledang by Asyik FM doesn't likely cause the interference to existing radio stations as the proposed parameter is low power transmission, rather than 2kW power like other RTM radio station. 

 

Besides that, Asyik FM 107.4MHz Gunung Kledang transmission will not cause interference to Pahang FM 107.5MHz Gunung Ulu Kali coverage in West Pahang (Bentong, Lipis, Temerloh, Bera and Chenor). Although the interference between Asyik FM 107.4MHz and Pahang FM 107.5MHz happens in Southern Perak areas like Bidor, Sungkai, Teluk Intan, Langkap, and Kampung Gajah, but Pahang FM 107.5MHz is not affected because South Perak is not its service coverage as Pahang FM 107.5MHz targets only West Pahang areas.

 

Compare with the interference between 988 FM 98.8MHz from Gunung Ulu Kali and Minnal FM 98.9MHz Gunung Kledang, the interference between Asyik FM 107.4MHz (Gunung Kledang) and Pahang FM 107.5MHz (Gunung Ulu Kali) is lesser because Pahang FM 107.5MHz doesn't beam to Perak direction much like Traxx FM 100.1MHz as Pahang FM is using directional antenna (likely Yagi type). 

 

With Asyik FM Ipoh frequency 107.4MHz from Gunung Kledang, the radio station is expected to become receivable in part of Lojing Highlands, Kelantan as proposal antenna pattern diagram is beaming to northeast direction at 75DEG angle. Lojing Highlands has many Orang Asli people, the reception of Asyik FM 105.1MHz from Gunung Brinchang is unstable there due to interference with Molek FM 105.1MHz from Kota Bharu (Peringat). If Asyik FM Ipoh frequency 107.4MHz is launched, I may predict that the signal reception of FM 107.4MHz is slightly better than FM 105.1MHz in Lojing Highlands. 

 

Orang Asli villages in South Perak like Tapah, Chenderiang and Bidor can receive Asyik FM 107.4MHz from Gunung Kledang. Although it is less clear, but at least it is clearer than 105.1 and 102.5. For the interference, Asyik FM 107.4MHz may dominate the signal more than Pahang FM 107.5MHz. If Asyik FM 107.4MHz signal is moderate in Bidor and Tapah, so it is unnecessary to launch Tapah frequency from Changkat Rembian.

 

Next, Orang Asli villages in Sungai Siput (U) are expected to receive Asyik FM 107.4MHz from Gunung Kledang, signal is likely better than FM 93.1MHz from Bukit Ladang Teh which covers Lenggong. Despite Asyik FM 107.4MHz Gunung Kledang reception in less clear in Sungai Siput (U) town, but the main targeting areas are actually the Orang Asli villages. Therefore, it is not necessary to launch a repeater in Sungai Siput (U) town like Nasional FM 89.5MHz and Radio Klasik FM 90.7MHz.

 

For Gopeng, the town in Kinta district has many Orang Asli villages also. Asyik FM signal is expected to be clearer in Gopeng with the launch of Gunung Kledang transmitter FM 107.4MHz, the listeners will receive clearer signal than 105.1MHz from Gunung Brinchang.

FM DX Sporadic E in Malaysia (Episode 3): AIR (All India Radio) Rainbow FM 102.8MHz from Puducherry, India received in Langkawi Island, Kedah, Malaysia.

It is very interesting when we receive the ultra far radio stations signal via troprospheric, Sporadic E, and E-skip radio propagation. As I mentioned on previous article related to Thailand radio station which I received in Balakong, Selangor state, Malaysia, it was Sporadic E radio propagation day yesterday on 31st January 2022 in Malaysia.

 

In Langkawi Island, there is a DXer, named Sarawut DXers (Saiful Izham) received All India Radio AIR Rainbow FM 102.8MHz from Puducherry, India. It is the second furthest FM radio station received in Langkawi after Guangdong News Radio FM 91.4MHz from China which recorded in Langkawi on 15/09/2021 with 2356km distance.

 

Here is the audio clip which he received AIR Rainbow FM 102.8MHz in Langkawi, Malaysia.  

The signal was moderately clear with little fading signal. AIR Rainbow FM in Puducherry, India broadcasts in Tamil language, rather than Hindi language because Puducherry is located in South India where spoken language is Tamil there.

 

- Frequency: FM 102.8MHz 

- Power: 3kW

- Transmitter site: VCRC Road, Indra Nagar Extension, Gorimendu, Priyadarshini Nagar, Puducherry, Puducherry Union Territory, Republic of India

- Receiving site: Pemandangan Indah Kampung Yooi Mukim Bohor, Langkawi Island, Kedah State, Malaysia

- Distance: 2278km

- Receiving date/time: 31.07.2022 1554H (UTC+8)/0754H (UTC)

- Receiver: REALME 6 PRO (DSP)

- Antenna: Earbuds Wire 

 

SINPO: 45544

 

Radio reception information is taken from Sarawut DXers YouTube channel.

 

No interference from any distant radio stations like Perlis FM 102.9MHz (Padang Pauh) and IKIM FM 102.7MHz (Bukit Genting) was detected during the reception. 

 

The signal of AIR Rainbow FM 102.8MHz in Langkawi, Kedah, Malaysia is not consistently available because it is just a Sporadic E radio propagation signal only.