Sunday, 9 May 2021

List of RTM state radio stations which operate only 1 frequency to cover the whole state.

RTM operates state radio stations nationwide, they have more frequencies in order to cover the whole states, ensure all areas within a state get coverage, but there are 3 RTM state radio stations just operate only a frequency to cover the whole state.

 

1. Perlis FM


 

Operates only FM 102.9MHz from RTM Padang Pauh transmission tower to cover Perlis only. No second transmitter is launched as alternative frequency.


2. Selangor FM


Currently Selangor FM operates on FM 100.9MHz from Gunung Ulu Kali to cover whole Selangor. Between September 2017 and May 2019, Selangor FM was used to have second frequency on FM 99.8MHz from Batu 18 Hulu Langat tower as gap filler transmission to cover blind spot areas of FM 100.9MHz in Hulu Langat, Selangor. For current status, FM 99.8MHz is now defunct.


3. Melaka FM

Only broadcast on FM 102.3MHz from Gunung Ledang to cover Melaka, no alternative frequency is established as FM 102.3MHz Gunung Ledang transmitter perfectly cover whole Melaka state.


As Selangor FM, Melaka FM and Perlis FM operate only 1 frequency to cover all areas in Selangor, Melaka and Perlis states respectively, here is the list of nearby frequencies where are prohibited from using for neighboring state transmission due to interference.


==Selangor FM 100.9MHz==

1. FM 101.1MHz Gunung Telapak Burok

- Interference in Bangi, Semenyih, Dengkil, Beranang, Balakong, and Kajang 

2. FM 100.9MHz Gunung Ledang (non-directional antenna transmission)

- Interference in Sungai Pelek and Tanjung Sepat

3. FM 100.9MHz Bukit Tampin (non-directional antenna transmission)

- Interference in Sungai Pelek and Tanjung Sepat


==Perlis FM 102.9MHz==

1. FM 103.1MHz Gunung Jerai (non-directional antenna transmission)

- Interference in Perlis

2. FM 103.0MHz Bukit Penara/Seberang Jaya/BM Hill

- Interference in South Perlis (Sanglang)

3. FM 102.9MHz Bukit Larut

- Interference in South and West Perlis

4. FM 103.1MHz Menara Alor Setar

- Interference in South Perlis


==Melaka FM 102.3MHz==

1. FM 102.1MHz Gunung Telapak Burok

- Interference in Lubuk Cina, Kuala Sungai Baru, Kuala Linggi, Masjid Tanah and Sungai Udang

2. FM 102.0MHz Bukit Tampin (except same radio station)

- Interference in Melaka

 

Inversely, here is also the list of allowed nearby frequencies which can be used.


==Selangor FM 100.9MHz==

1. FM 101.1MHz Bukit Gan (Seremban town)

2. FM 101.1MHz Bukit Tampin

3. FM 100.9MHz Gunung Ledang (directional antenna, but not to beam northwest direction)

4. FM 100.7MHz Bukit Istana (Jerantut)


==Perlis FM 102.9MHz==

1. FM 103.1MHz Gunung Jerai (directional antenna, but beam only south direction)

2. FM 103.1MHz Seberang Jaya 


==Melaka FM 102.3MHz==

1. FM 102.0MHz Gunung Telapak Burok (300kHz, OK)

2. FM 102.1MHz Bukit Tinggi (Mersing)


(Simulated RF analysis) FM 102.0MHz vs. FM 102.1MHz in Gunung Telapak Burok for Negeri Sembilan broadcast, which is more suitable?

For current situation, FM 102.0MHz and FM 102.1MHz are the vacant frequencies in Negeri Sembilan (Seremban), either one of them can be likely occupied in Gunung Telapak Burok tower, but interference to existing radio stations must be considered.


In the past, I listed FM 102.1MHz as empty frequency in Negeri Sembilan since 2009, then later FM 102.0MHz was added as new vacant frequency.


Here I will make radio frequency (RF) analysis between FM 102.0MHz and FM 102.1MHz Gunung Telapak Burok transmission. 


Start with FM 102.1MHz first as I listed this frequency many years ago.


==FM 102.1MHz Gunung Telapak Burok RF analysis==

101.8MHz: MY FM Gunung Ulu Kali

102.1MHz: Gunung Telapak Burok

<300kHz, OK> 


102.1MHz: Gunung Telapak Burok

102.3MHz: Melaka FM Gunung Ledang

<200kHz, NOT OK>


102.1MHz: Gunung Telapak Burok

102.2MHz: Pahang FM Bukit Fraser

<100kHz, NOT OK>

 

101.9MHz: Johor FM Gunung Pulai

102.1MHz: Gunung Telapak Burok

 

FM 102.1MHz is less suitable to be used in Gunung Telapak Burok because it can cause adjacent channel interference to Melaka FM 102.3MHz Gunung Ledang coverage in Northwest Melaka such as Lubuk Cina, Kuala Sungai Baru, Tanjung Bidara, Masjid Tanah and Kuala Linggi. In addition, RTM Melaka FM has only 1 frequency on FM 102.3MHz from Gunung Ledang to cover whole Malacca state, it has no alternative frequency actually. So, FM 102.1MHz is not recommended for Gunung Telapak Burok transmission, it needs to have further frequency separation from Melaka FM 102.3MHz with 300kHz.


Besides that, FM 102.1MHz Gunung Telapak Burok transmission could cause interference with RTM Pahang FM 102.1MHz Bukit Fraser coverage in Pahang where interference between both stations happen in Bera, Temerloh, Mentakab, Karak, Chenor, Teriang, and some Bentong areas. Minimum frequency separation between Gunung Telapak Burok and Bukit Fraser must be at least 200kHz.


Next, analyze FM 102.0MHz Gunung Telapak Burok.

 

==FM 102.0MHz Gunung Telapak Burok RF analysis==

101.8MHz: MY FM Gunung Ulu Kali

102.0MHz: Gunung Telapak Burok

<200kHz, OK>


102.0MHz: Gunung Telapak Burok

102.3MHz: Melaka FM Gunung Ledang

<300kHz, OK>


101.9MHz: Johor FM Gunung Pulai

102.0MHz: Gunung Telapak Burok

<100kHz, OK>


102.0MHz: Gunung Telapak Burok

102.2MHz: Pahang FM Bukit Fraser

<200kHz, OK>


For RF analysis of FM 102.0MHz Gunung Telapak Burok transmission, MY FM 101.8MHz Gunung Ulu Kali may have interference in South Selangor, but it will not affected much because MY FM's listeners tune to FM 100.6MHz from Gunung Telapak Burok in South Selangor. 


RTM Melaka FM 102.3MHz Gunung Ledang coverage in Northwest Melaka is not affected by FM 102.0MHz Gunung Telapak Burok transmission, better than FM 102.1MHz.


RTM Johor FM 101.9MHz Gunung Pulai coverage in North Johor such as Muar, Tangkak and Segamat will be interfered by FM 102.0MHz Gunung Telapak Burok, but these areas are not FM 101.9MHz broadcast coverage. Listeners already tune to Johor FM loudly and clearly on FM 105.3MHz from Gunung Ledang in North Johor. Based on the minimum frequency separation between Gunung Pulai and Gunung Telapak Burok at 100kHz, actually FM 102.0MHz Gunung Telapak Burok transmission complies with the rules because it meets 100kHz frequency separation with Johor FM 101.9MHz from Gunung Pulai.


About radio station to use FM 102.0MHz in Gunung Telapak Burok to cover Negeri Sembilan (except Tampin), I will propose this for BFM Radio actually as Negeri Sembilan is likely a potential market to BFM Radio after Penang and Johor Bahru, then BFM will be received even clearer than 89.9MHz in Negeri Sembilan. In terms of investment, the SMEs and investors will invest more in Seremban and Port Dickson districts where are classified as Vision Valley 2.0, then slowly stimulate the economy of other Negeri Sembilan districts such as Jelebu, Kuala Pilah, Rembau and Jempol in the future.


If ECRL doesn't change the proposal, but maintain Negeri Sembilan route, Jelebu economy activities will be developed as Seremban.

Saturday, 1 May 2021

Traxx FM Bukit Bakar transmitter frequency is changed from 98.5MHz to 98.7MHz?

 


Few days ago, I received a message from Kelantan DXer and I was informed that Traxx FM Central Kelantan (Machang) frequency from Bukit Bakar transmitter was changed from 98.5MHz to 98.7MHz suddenly.

 

Seriously I have no idea that why did RTM change Traxx FM Bukit Bakar frequency to 98.7MHz.

 

With such frequency change, I also concern about interference to Nasional FM 98.8MHz Bukit Bintang coverage in Besut, Terengganu.

 

Few questions of Traxx FM frequency change of Bukit Bakar transmitter: 

 

1. Is it an accidentally change by Telekom guy? Despite license frequency is FM 98.5MHz.

2. Why did RTM Traxx FM change Bukit Bakar frequency to 98.7MHz suddenly?

3. Does the frequency change because of interference to Melody FM 98.5MHz Gunung Kledang coverage in Central Perak? (In fact, Bukit Bakar transmission can't reach Perak)

4.  Does the frequency change because of interference to Radio Thailand Narathiwat FM 98.25MHz?

 

FM 98.7MHz Bukit Bakar is same frequency as Gunung Jerai, so people who travel from Kedah to Kelantan don't need to change frequency like Hitz FM 92.8MHz? 

 

After I received the news, I already predict Traxx FM Bukit Bakar transmission on 98.7MHz will give the impact badly to Nasional FM 98.8MHz coverage.

 

In term of history, Traxx FM (Radio 4) FM 98.5MHz Bukit Bakar is in service since 1985, it has been 36 years in transmission actually, but I don't understand the sudden frequency change to 98.7MHz.

 

I will send the footage to RTM engineer department for further investigation.

 

Hereby I will share the videos of frequency change, and the interference impact to Nasional FM 98.8MHz in Bachok, Kelantan where I received the videos from Kelantan DXers.


After Minnal FM 101.1MHz, Mix FM 99.1MHz is second Gunung Pulai transmitted radio station spotted in Tanjung Sepat, Selangor, Malaysia

 

On March 2021, I went to Morib mainly and Tanjung Sepat was my side trip. Previously I caught Minnal FM 101.1MHz signal from Gunung Pulai there, now I receive Mix FM 99.1MHz as second Gunung Pulai transmitted radio station in Tanjung Sepat, Selangor today.

 

Received between 12pm to 1pm at newly built Lover's Bridge. Reception signal in MONO, but it has adjacent channel interference from Raaga FM 99.3MHz Gunung Ulu Kali transmitter when receive at improper direction.


==Mix FM 99.1MHz DX report==

- Power: 2kW

- Transmitter site: Gunung Pulai, Johor

- Receiver location: Lover's Bridge, Tanjung Sepat, Selangor

- Distance: 250km

988 FM 99.8MHz Gunung Kledang, Minnal FM 101.1MHz Gunung Pulai and RRI Bengkalis PRO-1 FM 90.6MHz spotted in Bagan Lalang, Selangor, Malaysia.

Today is 1st May 2021, and it is Labour's Day. Initially I plan to travel outside Selangor, but I cannot do it because of CMCO where interstate is not allowed. Hence, I decide to travel Sungai Pelek and Tanjung Sepat.


Bagan Lalang is listed.


Previously I traveled to Sungai Pelek on December 2018, and I received RTM Melaka FM 102.3MHz from Gunung Ledang clearly in Bagan Lalang where marked as my furthest FM signal monitoring there. 


Now, the record is renewed again. I receive three distant radio stations signal in Bagan Lalang today such as:

- 988 FM 99.8MHz (Gunung Kledang)

- Minnal FM 101.1MHz (Gunung Pulai)

- Radio Republik Indonesia RRI Bengkalis PRO-1 FM 90.6MHz


Minnal FM 101.1MHz Gunung Pulai is already expected because I was used to receive its signal in Tanjung Sepat on March 2021, meanwhile 988 FM 99.8MHz Gunung Kledang and RRI Bengkalis PRO-1 FM 90.6MHz are unexpectedly receivable in Bagan Lalang, Selangor today.


In Bagan Lalang, Minnal FM 101.1MHz is the only available Gunung Pulai transmitted radio station there. No signal when I try to tune IKIM FM 106.2MHz, Mix FM 99.1MHz, and 988 FM 99.9MHz.


For 988 FM 99.8MHz Gunung Kledang, I can't believe that I receive it in Bagan Lalang because the frequency is adjacently occupied by THR Raaga FM 99.7MHz from Gunung Ledang usually, but it is suddenly receivable there. 988 FM 99.8MHz from Gunung Kledang (Ipoh) reception in Bagan Lalang is classified as tropospheric propagation. Note that 988 FM 99.8MHz is adjacently interfered by THR Raaga FM 99.7MHz from Gunung Ledang, Johor.


Next, RRI Bengkalis PRO-1 FM 90.6MHz, I need to tune adjacently on my TECSUN PL-380 radio receiver by adjusting the frequency to FM 90.65MHz or FM 90.66MHz because interference by Minnal FM 90.5MHz Gunung Telapak Burok, but the signal is not consistently available.


 


Meanwhile, I attempt to receive RRI Batam PRO-1 FM 105.1MHz there, but I fail to do so because FM 105.1MHz is nothing in Bagan Lalang.

 

 ==FM DX report in Bagan Lalang, Selangor, Malaysia==

 

1. Minnal FM 101.1MHz

- Power: 5kW

- Transmitter site: Gunung Pulai, Johor

- Distance: 234km

 

2. 988 FM 99.8MHz

- Power: 2kW

- Transmitter site: Gunung Kledang, Perak

- Distance: 234km

 

3. Radio Republik Indonesia RRI Bengkalis PRO-1 FM 90.6MHz

- Power: 5kW

- Distance: 134km

(RF analysis) FM 100.9MHz Gunung Ledang can interfere Selangor FM 100.9MHz Gunung Ulu Kali coverage in Tanjung Sepat and Sungai Pelek if covers Melaka.

5 years ago, I listed FM 100.9MHz as proposed frequency for Gunung Ledang transmission for Melaka and North Johor. In 2016, I suggested this frequency for Kool FM as Melaka frequency as FM 100.9MHz was vacated in North Johor, meanwhile it was weak signal of RTM Selangor FM from Gunung Ulu Kali.


Look at the spectrum condition, FM 100.9MHz apparently can be used in Gunung Ledang for North Johor and Melaka, but technically it can cause co-channel interference with Selangor FM in critical locations.


Use my old personal proposal. Kool FM 100.9MHz Gunung Ledang for Melaka and North Johor, I know if the expansion is successful will benefit its listeners in Melaka and North Johor, even part of Negeri Sembilan and Pahang, but because Selangor FM 100.9MHz can be listened in costal areas of Northwest Melaka, Kool FM 100.9MHz Gunung Ledang could face serious co-channel interference from Selangor FM badly, mainly in Kuala Sungai Baru, Masjid Tanah, Sungai Udang, Tanjung Bidara, Lubok Cina and part of Melaka city like what happen to Minnal FM 103.3MHz Gunung Ledang which suffers interference from Era FM 103.3MHz Gunung Ulu Kali in part of Melaka.


That's not the biggest point, but the main point is Kool FM 100.9MHz Gunung Ledang can interfere Selangor FM 100.9MHz Gunung Ulu Kali coverage in Tanjung Sepat and Sungai Pelek where are towns in Selangor state. So, Selangor FM's listeners can hear co-channel interference from FM 100.9MHz Gunung Ledang (Kool FM: personal old proposal) badly in Tanjung Sepat, and Sungai Pelek. 


This is because Era FM 103.3MHz Gunung Ulu Kali suffers co-channel interference from Minnal FM 103.3MHz Gunung Ledang in Tanjung Sepat and Sungai Pelek (including Bagan Lalang) badly, but this does not affect Era FM listeners because Era can be tuned on FM 103.6MHz from Gunung Telapak Burok there. 


Era FM has alternative frequency, but Selangor FM has no alternative frequency as it covers the whole Selangor state with only a frequency FM 100.9MHz.


Unless Selangor FM launches alternative frequency to backup Tanjung Sepat and Sungai Pelek (maybe FM 92.0MHz or 102.1MHz) from Sepang, so interference from Kool FM 100.9MHz Gunung Ledang in Tanjung Sepat and Sungai Pelek is not a matter, but it is not worth to do so because RTM Selangor FM needs to pay more transmission fees because of alternative transmitter.


For everyone's information, as there is no terrains between Gunung Ledang and Southwest Selangor, so Gunung Ledang transmitted radio stations can be tuned clearly there, except those Gunung Ledang radio stations cover only North Johor and other non-Melaka region (example: Johor FM 105.3MHz and Asyik FM 95.6MHz).


Following by Era FM 103.3MHz (Gunung Ulu Kali) is having co-channel interference from Minnal FM 103.3MHz (Gunung Ledang) in Tanjung Sepat and Sungai Pelek that I detected few weeks ago, now I realize my old proposal of FM 100.9MHz Gunung Ledang transmission is not safe to be used.


It is quite dangerous if a radio station uses FM 100.9MHz in Gunung Ledang to cover Melaka and North Johor because it can interfere Selangor FM Gunung Ulu Kali coverage in Southwest Selangor (Tanjung Sepat and Sungai Pelek).


Another case, Johor FM is using 105.3MHz in Gunung Ledang which is same frequency as Suria FM from Gunung Ulu Kali, but the transmission never cause interference to Suria FM in Southwest Selangor because Johor FM beams only North Johor areas.


The frequency FM 100.9MHz Gunung Ledang is safe to be used if the radio station does not cover Melaka like Johor FM. If Pahang FM launches Gunung Ledang transmitter to cover Muadzam Shah on FM 100.9MHz by using directional antenna to cover South Pahang only, it is fine because it will not cause interference to Selangor FM coverage in Southwest Selangor.

 

Asyik FM currently broadcasts on FM 95.6MHz in Gunung Ledang for North Johor only, excluding Melaka and Negeri Sembilan, because it is interfering with RTM Negeri FM 95.7MHz Bukit Tampin, actually if RTM Asyik FM Gunung Ledang frequency changes to 100.9MHz without changing its antenna system, it will not interfere Selangor FM 100.9MHz Gunung Ulu Kali coverage.


In conclusion, FM 100.9MHz Gunung Ledang transmission depends on radio broadcaster antenna direction configuration.


==RF interference analysis if FM 100.9MHz Gunung Ledang transmission is occupied to cover Melaka and North Johor==


1. For FM 100.9MHz Gunung Ledang (example: Kool FM)

- Affected listening areas: Tanjung Bidara, Sungai Udang, Kem Terendak, Kuala Sungai Baru, Masjid Tanah, Lubuk China, Tanjung Kling and some Melaka city. (Melaka state)


2. For Selangor FM 100.9MHz Gunung Ulu Kali

- Affected listening areas: Tanjung Sepat, Bagan Lalang, and Sungai Pelek. (Selangor state)

- Alternative frequency: NO


3. Common interference areas: Port Dickson, Rembau, Rantau, Linggi, Pedas, Lukut, Pasir Panjang, Si Rusa, Kuala Klawang, Bera, Kemayan, Teriang, Manchis.



==RF interference analysis between Minnal FM 103.3MHz Gunung Ledang and Era FM 103.3MHz Gunung Ulu Kali==


1. For Minnal FM 103.3MHz Gunung Ledang

- Affected listening areas: Tanjung Bidara, Sungai Udang, Kem Terendak, Kuala Sungai Baru, Masjid Tanah, Lubuk China, Tanjung Kling and some Melaka city. (Melaka state)

- Alternative frequency: FM 90.5MHz Gunung Telapak Burok


2. For Era FM 103.3MHz Gunung Ulu Kali

- Affected listening areas: Tanjung Sepat, Bagan Lalang, and Sungai Pelek. (Selangor state)

- Alternative frequency: FM 103.6MHz Gunung Telapak Burok


3. Common interference areas: Port Dickson, Rembau, Rantau, Linggi, Pedas, Lukut, Pasir Panjang, Si Rusa, Kuala Klawang, Bera, Kemayan, Teriang, Manchis.

Friday, 30 April 2021

Langkawi FM 104.8MHz begins to relay Nasional FM during non-broadcast hours from 7pm to 7am.

 



According to Langkawi DXer, the RTM local radio station Langkawi FM 104.8MHz (87.5MHz in Kuah) begins to relay Nasional FM during non-broadcast hours from 7pm to 7am.

From 29.04.2021, Langkawi FM stopped relaying Kedah FM from 7pm to 7am.

In my opinion, this can reduce duplication of Kedah FM broadcast on Langkawi FM because Kedah FM already has Langkawi frequency on 105.7MHz.

In fact, I sent suggestion to RTM Langkawi by proposing Langkawi FM to relay either Nasional FM or Radio Klasik in 2018 and 2019 after I came back from Langkawi in July 2018, but I put Radio Klasik on first priority because Langkawi is tourism destination, so people need something music and entertainment based RTM radio station.

What I proposed to RTM in 2018 and 2019 regarding this matter, it really happens, but now RTM put Nasional FM simulcast relay programme on Langkawi FM 104.8MHz from 7pm to 7am.   




This indicates that Nasional FM is available in Langkawi on the frequency 104.8MHz and Langkawi can receive this radio station clearer than distant transmitters from Gunung Jerai 100.5MHz and Bukit Palong 89.7MHz, however this is only available for 12 hours.

Before I issued the proposal, Langkawi FM relayed Kedah FM during non-broadcasting hours. To me, it is quite boring because RTM radio stations in Langkawi broadcasted double content on 104.8 and 105.7 from 7pm to 7am, so listeners have less choice of tuning radio stations.


Here is the broadcasting hours of FM 104.8MHz in Langkawi Island.

* 0700-1900 hours: Langkawi FM
* 1900-0700 hours: Nasional FM

Aside FM 104.8MHz is main transmitter for Langkawi Island from Gunung Raya, its low power transmitter FM 87.5MHz from RTM Kuah (Langkawi FM studio) can be shutdown and transferred its antenna and transmitter system to Gunung Raya as Traxx FM to cater international tourist.

Friday, 23 April 2021

Station coverage of FM 102.0MHz silent radio station transmission in Negeri Sembilan and Melaka.

If you drive from Seremban to Alor Gajah via PLUS Highway, there is an unknown radio station signal when tune to the FM frequency to 102.0MHz. 

 




The frequency FM 102.0MHz is even clear when you receive at Pedas Linggi rest station (regardless northbound and southbound). I'm wondering who is operating the frequency, even RDS text, named "TEST" was appeared on my radio receiver.


This broadcast station is having signal, but in silent condition when receive all the way from Pedas Linggi to Simpang Ampat interchange.


Here is the predicted coverage of FM 102.0MHz in Negeri Sembilan and Melaka.


1. Negeri Sembilan

- Pedas

- Linggi

- Rembau

- Kota

- Tampin (partly)


2. Melaka

- Lubok Cina

- Alor Gajah (partly)

Thursday, 22 April 2021

List of Malaysia radio stations which are available in North Kalimantan, Indonesia.

In some locations of North Kalimantan province, Indonesia, Malaysia radio stations are receivable there, but they're based in Tawau, Sabah (Gunung Andrassy transmitter).


- RTM Radio Klasik FM 93.9MHz

- RTM Nasional FM 94.7MHz

- RTM Sabah FM 95.7MHz

- RTM Traxx FM 97.1MHz

- RTM Ai FM 98.1MHz

- RTM Sabah VFM 99.3MHz

- RTM Tawau FM 100.1MHz

- IKIM FM 100.7MHz


Available North Kalimantan locations are only Nunukan, Paladju, Tandjungkeramat and Bunyu Island.

IKIM FM 100.7MHz dikesan di Kalimantan Timur, Indonesia

 


IKIM FM mempunyai tiga frekuensi di Sabah, seperti FM 93.9MHz Kota Kinabalu (Bukit Karatong), FM 100.7MHz Tawau (Gunung Andrassy) dan FM 107.3MHz Lahad Datu (Gunung Silam).


Seorang DXer dari Indonesia mengesan isyarat siaran IKIM FM 100.7MHz di Kalimantan Timur beberapa hari lepas. Rakaman isyarat radio tersebut dimuat naik ke YouTube sebagai "hobi pemantauan isyarat frekuensi jauh" (distant frequency signal monitoring hobby).


Di sini adalah rakaman video IKIM FM 100.7MHz dari Tawau, Sabah (Gunung Andrassy) yang diterima di Kalimantan Timur, Indonesia.

 

Berdasarkan pada rakaman video ini, isyarat radio IKIM FM 100.7MHz yang dipancar dari Gunung Andrassy (Tawau, Sabah) diterima di Sangatta. Jarak penerimaan dari Gunung Andrassy ke Sangatta ialah 420km.

 

Kod SINPO bagi penerimaan IKIM FM 100.7MHz ialah 45555, oleh itu isyarat adalah jelas, tetapi MONO.

 

S= Isyarat (Signal)

I= Gangguan (Interference)

N= Bising (Noise)

P= Pemancaran (Propagation)

O= Purata (Overall) 

 


 

Sebenarnya, IKIM FM 100.7MHz dari Gunung Andrassy boleh didengari di beberapa kawasan Kalimantan Utara, Indonesia seperti Nunukan, Paladju, Tandjungkeramat, dan Bunyu.

 

Pada pandangan saya, penerimaan siaran IKIM FM 100.7MHz di Sangatta, Kalimantan Timur, Indonesia dengan jarak sejauh 420km adalah luar biasa kerana radio FM biasanya boleh memancar sejauh 120-150km, bergantung kepada keadaan geografik.

Wednesday, 21 April 2021

Radio Republik Indonesia RRI Batam PRO-1 FM 105.1MHz received in Central and North Johor, Malaysia




We already noticed that Hang FM 106.0MHz was the most powerful Batam radio station in terms of transmission where it can overspill signal in North Johor and part of Melaka with overlapping CityPlus FM 106.0MHz Gunung Telapak Burok signal.

After Hang FM 106.0MHz as powerful station from Batam, actually Radio Republik Indonesia RRI Batam PRO-1 FM 105.1MHz transmission is quite powerful.

From my listening experience, I was used to receive RRI Batam FM 105.1MHz in Gelang Patah and Singapore. In Gelang Patah, Johor, Malaysia, FM 105.1MHz has no interference noise from Ai FM 104.9MHz Gunung Pulai, my phone may have high sensitivity radio receiver. Meanwhile, RRI Batam PRO-1 FM 105.1MHz is very strong in Singapore, cause Ai FM 104.9MHz Gunung Pulai was interfered.

 

Apart of its station availability in Singapore and Southern Johor, actually Central and North Johor are still able to receive RRI Batam PRO-1 FM 105.1MHz.

By searching "FM 105.1MHz Batam in Johor", there are few videos where receiving RRI Batam PRO-1 FM 105.1MHz in Simpang Renggam and Segamat.

For RRI PRO-1 Batam FM 105.1MHz in Simpang Renggam, Johor, the entire video was recorded by Badrul Hisham. According to the video, FM 105.1MHz was having adjacent channel interference from Ai FM 104.9MHz Gunung Pulai (local station), despite FM 105.1MHz was receivable there.

Surprisingly, Radio Republik Indonesia RRI Batam PRO-1 FM 105.1MHz was receivable in Northern Johor location named Segamat, the video was recorded by HBC 101, but I published on my YouTube channel by giving credits and video courtesy.

For FM 105.1MHz receiving condition in Segamat, Johor, it was not clear there, but I don't hear any adjacent channel interference noise from RTM Johor FM 105.3MHz Gunung Ledang, despite both are having 200kHz frequency separation only. I may believe the radio receiver are high sensitivity unit in the recordings. If use cheaper radio receiver to receive RRI Batam PRO-1 FM 105.1MHz in Segamat, we already detect interference noise from Johor FM 105.3MHz Gunung Ledang badly.

 
Alongside RRI Batam PRO-1 FM 105.1MHz, its sister station PRO-2 Batam FM 105.5MHz is not receivable in Central and North Johor. Although both are using 5kW transmitter, but PRO-1 and PRO-2 are having different antenna system because PRO-1 antenna gain is higher than PRO-2. So, the effective radiated power (ERP) of RRI Batam PRO-1 FM 105.1MHz is higher than PRO-2 FM 105.5MHz, this allows RRI Batam PRO-1 FM 105.1MHz to have wider coverage and more powerful transmission.

104.9MHz: Ai FM Gunung Pulai
105.1MHz: RRI Batam PRO-1
<200kHz>

105.1MHz: RRI Batam PRO-1
105.3MHz: Johor FM Gunung Ledang
<200kHz>

Other than Simpang Renggam, and Segamat, if there is opportunity, I would like to test RRI Batam PRO-1 FM 105.1MHz in Muar, Johor when I travel there one day.

Monday, 19 April 2021

Radio Republik Indonesia RRI Bengkalis PRO-3 FM 89.8MHz caught in Melaka, Malaysia.

In Melaka costal areas, Radio Republik Indonesia RRI Bengkalis PRO-1 FM 90.6MHz is the only available Indonesia radio station as it operates at 5kW transmitter power.


Surprisingly RRI Bengkalis PRO-3 FM 89.8MHz could be received in Melaka, Malaysia, but signal was only caught at Pantai Siring Umbai. It is rare catch because FM 89.8MHz operates at low power transmission.


RRI Bengkalis PRO-3 FM 89.8MHz is usually not receivable in most of Melaka areas as BFM 89.9 from Gunung Ulu Kali and Ai FM 89.7MHz from Gunung Telapak Burok dominated in Melaka, despite Melaka is not broadcast area of two stations.

 


Adjacent distance is 79km from Bengkalis to Pantai Siring Umbai, the reception of RRI Bengkalis PRO-3 FM 89.8MHz is not strong as PRO-1 FM 90.6MHz in Melaka due to lower ERP as result PRO-3 FM 89.8MHz uses lower transmitter power.

 

SINPO: 22122

Friday, 16 April 2021

Indonesia FM radio stations from Pekanbaru caught in Melaka, Malaysia.

In southern region of Peninsular Malaysia, we know that Johor can receive TV and radio channels from Singapore and Batam, Indonesia, mainly South Johor. 


For Melaka, also a state in southern region of Peninsular Malaysia, I may know Melaka can receive Radio Republik Indonesia RRI Bengkalis PRO-1 FM 90.6MHz, especially coastal areas.


Surprisingly there are three Indonesia FM radio stations from Pekanbaru detected in Melaka.


1. Radio Aditya FM 87.6MHz

2. Radio Republik Indonesia RRI Pekanbaru PRO-3 FM 89.2MHz

3. Smart FM 101.8MHz


The videos credit are given to Kelvin Lee, who is my DX friend from Melaka.

 


All radio stations are transmitted from Pekanbaru, Riau province, Indonesia. The clearest radio station is RRI Pekanbaru FM 89.2MHz, following by Radio Aditya FM 87.6MHz and Smart FM 101.8MHz.

 

Receiving locations are located in Melaka town, mainly Portugese Settlement Area (for Radio Aditya FM 87.6MHz) and Crystal Bay Alai Perdana (for Radio Atidya FM 87.6MHz, RRI Pekanbaru PRO-3 FM 89.2MHz and Smart FM 101.8MHz), distance range is between 205km-210km from Pekanbaru FM radio stations' transmitter site. 

 

In Melaka, FM 101.8MHz is usually a distant transmitter of MY FM from Gunung Ulu Kali which broadcasts for Klang Valley, somewhat MY FM 101.8MHz is having interference from RTM Johor FM 101.9MHz Gunung Pulai transmitter there, but it is very rare when Melaka receives FM 101.8MHz is Smart FM from Pekanbaru, Indonesia. 

 

This distant FM signal monitoring is very impressive and rare in Melaka.

 

==Pekanbaru FM DX report in Melaka, Malaysia (Distance range: 205km-210km)== 

1. Radio Aditya FM 87.6MHz 

* SINPO code: 35332 (Portugese Settlement Area), 35433 (Crystal Bay Alai Perdana)

 

2. RRI Pekanbaru PRO-3 FM 89.2MHz

* SINPO code: 44454

 

3. Smart FM 101.8MHz

* SINPO code: 23232

Thursday, 8 April 2021

Kuala Lumpur Tower (KL Tower) transmitted FM radio stations list (including proposed RTM Radio Remaja)

 

Kuala Lumpur Tower transmitted FM radio stations:

* 87.7MHz: RTM Radio Klasik

* 88.5MHz: RTM Nasional FM

* 89.3MHz: RTM Ai FM

* 90.3MHz: RTM Traxx FM

* 91.1MHz: RTM Asyik FM

* 92.3MHz: RTM Minnal FM

* 93.9MHz: Bernama Radio

* 97.2MHz: RTM KL FM

* 107.2MHz: RTM Radio Remaja (my proposal on RTM planning teenagers radio station)

RTM plans to launch teenagers oriented online radio station (Radio Remaja). It can broadcast on MYTV myFreeview and at least on a FM frequency in Kuala Lumpur only (FM 107.2MHz KL Tower)!

 

 

BY PHILIP YONG

philipyong0110@gmail.com

 

According to RTM One News on 6th April 2021, Radio Televisyen Malaysia (RTM) is planning to launch a teenager oriented online radio station to target the Malaysia's teens.


The RTM strategic development director, Abdullah Daud said that RTM is currently drafting a proposal paper for the channel. The initiative is done after having a collaboration strategic discussion with Ministry of Communications and Multimedia, also Ministry of Women, Family and Community Development.


==My commentary==

From my view, RTM "teenagers oriented radio station" (Radio Remaja) is something like Australia's ABC Triple J radio network, Radio Televisyen Brunei RTB Pelangi FM, Rakita FM and Singapore Mediacorp 987FM.


Definitely broadcast in Malay language.


This teenagers targeted radio station will be expected to be available on RTM Klik (RTM TV and radio online streaming app), and also digital terrestrial television platform (MYTV myFreeview). In my opinion, RTM planning "teenagers targeted radio station" still can broadcast on FM radio, but restrict in Kuala Lumpur only.


I don't mention to propose for coverage expansion to nationwide because FM frequencies are highly congested in Malaysia (especially west coast of Peninsular Malaysia), so never think RTM will really make this teenager radio station nationwide on FM radio as other radio stations can't get frequency. 


Although Kuantan, Jerantut, Mersing, Maran, and  Terengganu (Dungun, Kuala Terengganu and Besut) have plenty of FM frequencies, but I don't think RTM will put this radio station there because these locations have less teenagers market, compare to Klang Valley.

 

==Proposal to launch RTM teenagers radio station on FM radio platform in Klang Valley==

About RTM planning "teenagers oriented radio station" on FM radio platform, I think it is very sufficient if RTM launches it only in Klang Valley area, transmitted from Kuala Lumpur Tower.


Available frequencies for Kuala Lumpur transmission are likely FM 91.9MHz, FM 99.7MHz and FM 107.2MHz


FM 91.9MHz and FM 99.7MHz are likely not suitable for KL Tower transmission by RTM "Radio Remaja" because RTM Nasional FM and Selangor FM are occupying 92.0MHz and 99.8MHz respectively for Hulu Langat gap filler transmission, which can cause interference. Besides that, RTM Nasional FM 92.0MHz and Selangor FM 99.8MHz are temporarily suspended transmission as its tower went renovation by upgrading security system.

 

If FM 91.9MHz and FM 99.7MHz are not allowed by MCMC for Kuala Lumpur Tower transmission, so FM 107.2MHz is likely the most suitable frequency.

 


Talking about suggested frequencies, I suggest FM 107.2MHz for RTM planning "Radio Remaja" as Kuala Lumpur frequency, transmitted from KL Tower.


==Proposed parameter of RTM "Radio Remaja" on FM radio platform==

- Frequency: FM 107.2MHz

- Power: 0.5kW

- Transmitter tower: Kuala Lumpur Tower

- Broadcast area: Klang Valley only

 




 


==RF analysis==

107.0MHz: Suria FM Gunung Telapak Burok

107.2MHz: RTM "Radio Remaja" Kuala Lumpur Tower

<200kHz, OK>


107.2MHz: RTM "Radio Remaja" Kuala Lumpur Tower

107.3MHz: Melody FM Gunung Ledang

<100kHz, OK>


107.2MHz: RTM "Radio Remaja" Kuala Lumpur Tower

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

<300kHz, OK>


According to RF analysis, RTM "Radio Remaja"" FM 107.2MHz KL Tower frequency allocation is ok. When FM 107.2MHz comes to versus Pahang FM 107.5MHz, it breaks the minimum frequency separation requirement because both stations are 300kHz spacing. For RTM, it is not a problem because both radio stations are under RTM, and they're targeting different locations.

 

For proposed transmission power, as Radio Remaja FM 107.2MHz KL Tower is having 300kHz separation from Pahang FM 107.5MHz Gunung Ulu Kali, so 500W is sufficient for the transmission and less interference impact is detected. 


Despite RTM "Radio Remaja" FM 107.2MHz can likely interfere Pahang FM 107.5MHz Gunung Ulu Kali coverage in Kuala Lumpur and Klang Valley areas, but it does not affect actual Pahang FM 107.5MHz coverage because FM 107.2MHz does not overspill to West Pahang. Moreover, Kuala Lumpur and Klang Valley area are not Pahang FM 107.5MHz broadcast coverage.


It is good if RTM Radio Remaja broadcasts on FM radio in Klang Valley area on proposed 107.2MHz, at least teenagers can tune on FM radio, another listening choice by RTM.


However, Pahang FM listeners may not be able to be tuned in Kuala Lumpur City on 107.5MHz because interference from Radio Remaja FM 107.2MHz, but they can tune via RTM Klik online app. Currently RTM Pahang FM 107.5MHz is not clear in Klang Valley areas, some of Kuala Lumpur city areas can't receive the radio station due to high rise buildings.

 

Again Kuala Lumpur is not coverage of Pahang FM 107.5MHz.


If RTM launches this radio station, it can compete against Era FM, Hot FM, and Rakita in Klang Valley (for FM radio), and nationwide (for digital platform).

Tuesday, 6 April 2021

RTM Traxx FM complete frequencies list

 

Traxx FM is my only favorite RTM radio station, it is also my favorite English music radio station ever because it offers variety and wide range of music. 

 

Traxx FM is formerly known as Radio 4 and RTM Blue Network.

 

Here is the complete frequencies list of Traxx FM, including gap filler transmitters that Traxx FM does not publish on its website.

 

==Peninsular Malaysia==

* 90.3MHz: Kuala Lumpur (KL Tower)

* 100.1MHz: Selangor, West Pahang & South Perak (Gunung Ulu Kali)

* 88.7MHz: Negeri Sembilan (Gunung Telapak Burok)

* 97.4MHz: Melaka, North Johor & Southwest Pahang (Gunung Ledang)

* 92.9MHz: Mersing, East Johor & Tioman Island (Bukit Tinggi)

* 102.9MHz: South Johor, Singapore & Batam Island (Gunung Pulai) 

* 90.1MHz: Ipoh & Central Perak (Gunung Kledang)

* 105.3MHz: Taiping, Kuala Kangsar & Northwest Perak (Bukit Larut)

* 101.1MHz: Cameron Highlands, Pahang (Gunung Brinchang)

* 88.5MHz: Balik Pulau, Penang (Bukit Genting)

* 88.5MHz: Paya Terubong & Air Itam, Penang (Bukit Penara)

* 98.7MHz: Penang, Kedah, Perlis & Langkawi (Gunung Jerai)

* 91.7MHz: Baling, Pengkalan Hulu & Thailand: Betong (Bukit Palong)

* 105.9MHz: Sik, Kedah (Bukit Dedap)

* 105.9MHz: Sintok, Kedah (UUM Sintok)

* 98.4MHz: Gerik, Perak (Memplam Sari) 

* 98.5MHz: Central Kelantan (Bukit Bakar)

* 90.8MHz: Jeli, Kelantan (Bukit Tangki Air)

* 104.7MHz: Kota Bharu, Kelantan & Narathiwat, Thailand (Wakaf Che Yeh) 

* 105.3MHz: Kuantan & East Pahang (Bukit Pelindung)

* 94.7MHz: Maran, Pahang (Bukit Senggora)

* 89.9MHz: Jerantut, Pahang (Bukit Istana)

* 88.5MHz: Ulu Tembling, Pahang

* 90.7MHz: Kuala Rompin, Pahang

* 94.1MHz: Gua Musang, Kelantan (Bukit Chupak)

* 89.7MHz: Central Terengganu (Bukit Besar)

* 98.9MHz: Dungun, Terengganu (Bukit Bauk)

* 97.0MHz: Besut, Terengganu (Bukit Bintang)

 

==Sabah & Labuan==

* 90.7MHz: Kota Kinabalu (Lawa Mandau)

* 105.3MHz: Central Sabah (Layang-Layang)

* 94.3MHz: Sandakan (Bukit Trig)

* 90.5MHz: Lahad Datu (Gunung Silam)

* 97.1MHz: Tawau (Gunung Andrassy)

* 96.7MHz: Kudat (Bukit Kelapa)

* 102.5MHz: Kota Belud (Bukit Pompod)

* 99.1MHz: Sipitang (Bukit Tampalagus)

* 90.7MHz: Beaufort (Bukit Gadong) 

* 91.1MHz: Keningau (Bukit Singgapon) 

* 89.0MHz: Kota Marudu (Bukit Langkon)

* 90.1MHz: Luasong

* 89.9MHz: Nabawan

* 104.9MHz: Felda Sabahat, Lahad Datu

* 90.3MHz: Labuan (Bukit Timbalai) 

 

==Sarawak==

* 89.9MHz: Kuching (Gunung Serapi) 

* 95.6MHz: Serian (Bukit Ampangan)

* 103.8MHz: Sri Aman (Bukit Temudok)

* 95.2MHz: Off Spaoh

* 92.3MHz: Sarikei & Daro (Bukit Kayu Malam)

* 102.5MHz: Sibu (Bukit Lima)

* 95.9MHz: Selangau & Kanowit (Bukit Singgalang)

* 90.7MHz: Mukah

* 88.1MHz: Kapit (SACOFA Bukit Kapit)

* 96.7MHz: Song (Bukit Song)

* 98.5MHz: Bintulu (Bukit Setiam)

* 106.2MHz: Belaga 

* 88.9MHz: Miri & Brunei: Kuala Belait (Bukit Lambir) 

* 104.5MHz: Miri (RTM Miri)

* 102.3MHz: Limbang & Brunei: Bandar Seri Begawan (Bukit Mas)

* 106.0MHz: Medamit (Bukit Sagan Rudang)

* 98.5MHz: Lawas (Bukit Tiong)