Monday 10 June 2019

Investigation update: FM 102.0MHz silent radio station is not from Bukit Tampin

In 2017 and 2018, I detected FM 102.0MHz silent radio station signal around Rembau, Pedas, and Tampin, initially I suspected it was from Bukit Tampin, somehow I also suspected there was military broadcast radio station in Bukit Tampin on 102.0MHz, but low power.

Hmmm... This radio station looks very suspicious, so I choose to analyze and investigate this.

On 5th June 2019, which is Raya Aidilfitri holiday, I was going to Bakri. When I was in Pedas Linggi of Negeri Sembilan, I detected again FM 102.0MHz signal, then I chose to stop my car at Hentian Sebelah Pedas Linggi (southbound) to perform radio reception test of FM 102.0MHz.

FM 102.0MHz in Pedas Linggi, Negeri Sembilan


Compare to Tampin and Alor Gajah, reception of FM 102.0MHz was more stable and clearer in Pedas Linggi, so I investigated FM 102.0MHz was not from Bukit Tampin, but it could be in hidden site within Pedas Linggi. At Hentian Sebelah Pedas Linggi, I used TECSUN PL-380 radio receiver and Samsung Galaxy V Plus to test FM 102.0MHz signal. For TECSUN PL-380, FM 102.0MHz showed higher signal strength and stereo indicator there, meanwhile FM 102.0MHz signal strength is low in Tampin town. In addition, FM 102.0MHz appeared RDS PS text on Samsung Galaxy V Plus with "TEST" program service text, this may mean that FM 102.0MHz is running test transmission, but in silent mode.

FM 102.0MHz does not only appear only "TEST" on its RDS PS text, meanwhile it also showed radio text where most of radio stations use radio text as their station tagline. For FM 102.0MHz case, I caught its radio text showed broadcast equipment information.

FM 102.0MHz RDS text information, caught in Pedas Linggi, Negeri Sembilan.


==FM 102.0MHz station information==
* RDS PS text: TEST
* Radio text: SmartGen 6.0 - Dynamic RDS/RBDS encoder - www.devabroadcast.com
* Location: Hentian Sebelah Pedas Linggi (southbound)

 FM 102.0MHz Deva Broadcast SmartGen 6.0 RDS/RBDS encoder


If I claimed 102.0MHz is from Bukit Tampin, I can receive this radio station clearly in Alor Gajah and Tampin, but it is too closed from Melaka FM 102.3MHz Gunung Ledang as frequency separation is 300kHz between Bkt Tampin and Gn Ledang. For Melaka, Bukit Tampin and Gunung Ledang are same coverage, it is perfect to separate at 400kHz.

FM 102.0MHz can be legal or unlicensed radio station (pirate). If it is legal radio station, I may think FM 102.0MHz is belonged to RTM because none of commercial radio stations will launch gap filler transmitter for Pedas Linggi as they will use Gunung Telapak Burok, Gunung Ulu Kali and Gunung Ledang to cover these areas. If I suspect FM 102.0MHz is belonged to RTM, I may believe RTM may add 4th frequency for Negeri FM to cover Pedas as pocket filling transmitter.




It is possible if FM 102.0MHz is belonged to RTM Negeri FM because Negeri FM has no Gunung Ulu Kali frequency, but reception of 3 existing transmitters (92.6 Gunung Telapak Burok, 95.7 Bukit Tampin and 107.7 Gunung Ledang) are not clear and unstable in Pedas and North Rembau. This also defines that RTM Negeri FM can have 4th frequency for Negeri Sembilan state. Generally Pedas is under Bukit Tampin coverage, but RTM Negeri FM 95.7MHz Bukit Tampin reception is not clear because it is clashed by Fly FM 95.8MHz Gunung Ulu Kali, so RTM Negeri FM may launch FM 102.0MHz for Pedas, Negeri Sembilan.

With FM 102.0MHz, I may guess Negeri FM reception will be better in Pedas and Rembau (Chembong).

==Negeri FM frequencies and transmitter sites==
- 92.6MHz Gunung Telapak Burok: Seremban, Kuala Pilah, Jelebu, Jempol, Port Dickson, Bahau, Southern Selangor, Bera, Temerloh, Mentakab and Chenor
- 95.7MHz Bukit Tampin: Rembau, Inas, Kota and Tampin
- 107.7MHz Gunung Ledang: Gemas, Gemencheh, Tampin, Felda Lui, Simpang Pertang, Keratong, Kemayan, North Johor (Segamat and Tangkak) and Melaka
- 102.0MHz Pedas and North Rembau (Chembong)???

Compare with other RTM radio stations, when Gunung Telapak Burok and Gunung Ledang reception are not really clear in Pedas, they can be tuned from Gunung Ulu Kali. For Negeri FM case, it has no Gunung Ulu Kali frequency, but it relies Gunung Telapak Burok, Gunung Ledang and Bukit Tampin, what I suspect is FM 102.0MHz could become alternative frequency of Negeri FM 95.7MHz in Pedas and Rembau. Just an example, if listeners tune to RTM Negeri FM in Pedas, 95.7MHz Bukit Tampin is clashed by Fly FM, meanwhile reception of 107.7 Gunung Ledang and 92.6 Gunung Telapak Burok are not clear there, so they can continue listening to Negeri FM on 102.0MHz from Pedas transmitter site clearly in Pedas and Rembau (Chembong). 

Anyway, I had submitted a feedback to MCMC via email by attaching few audio clips and videos as evidence, this allows MCMC to do further investigation whether FM 102.0MHz is legal or unlicensed radio station. For the current moment, I suspect FM 102.0MHz is Negeri FM upcoming 4th frequency for Pedas, but I need to verify with MCMC after the investigation is done.


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