Melody FM 103.0MHz Gunung Ulu Kali can be received in Penang and Northwest Perak (Alor Pongsu). If Perlis FM 102.9MHz Padang Pauh can be received in Kerian, Perak, so interference with Melody FM occured?

Astro Melody FM 103.0MHz is the strongest Gunung Ulu Kali transmitter among all the radio stations. In Northwest Perak, its actual frequency is FM 104.9MHz from Bukit Larut, but it can be received on FM 106.5MHz Gunung Jerai, FM 98.5MHz Gunung Kledang and FM 103.0MHz Gunung Ulu Kali. So, Melody FM can be received on four frequencies from different sites from Taiping to Nibong Tebal.


When I was departing from Kedah to Kuala Lumpur, I could receive Melody FM 103.0MHz in Alor Pongsu, Bagan Serai, Perak.

 
The distance between Alor Pongsu and Gunung Ulu Kali is 223km, receiving condition is not too bad. In addition, Melody FM 103.0MHz from Gunung Ulu Kali can be received in part of Taiping, Nibong Tebal, and Bukit Tambun.

The biggest surprise was I received Melody FM 103.0MHz from Gunung Ulu Kali in Penang's Nibong Tebal, and Bukit Tambun, as well as Bandar Baharu, Kedah.

 

As Parit Buntar, Tanjung Piandang, Bagan Serai and Kuala Kurau are located in Perak coastal area, I may believe Melody FM 103.0MHz Gunung Ulu Kali can be received there. Besides that, I was used to listen to RTM Perlis FM 102.9MHz via online. A DJ claimed that Perlis FM 102.9MHz can be tuned in Perlis, North Kedah, part of Penang and some Northwest Perak areas (Parit Buntar/Tanjung Piandang/Kuala Kurau), I felt shocked over such statement, but technically there is no terrains between RTM Padang Pauh transmission site and these four Perak towns via adjacent distance, therefore RTM Perlis FM 102.9MHz Padang Pauh can be received in Kerian district, Perak with weaker signal.

If Perlis FM 102.9MHz Padang Pauh and Melody FM 103.0MHz Gunung Ulu Kali can be received in Bagan Serai, Parit Buntar, Tanjung Piandang and Kuala Kurau of Perak, as well as Nibong Tebal of Penang, I may expect that there is interference between both stations, but the verification will be made if I travel in these four locations and to be published on next blog article. 

102.9MHz: Perlis FM Padang Pauh
103.0MHz: Melody FM Gunung Ulu Kali
<100kHz>

It is quite interesting if Kerian district of Perak (Bagan Serai, Parit Buntar, Tanjung Piandang and Kuala Kurau) can receive both radio stations. If I travel to these locations by early May 2020, I will perform an interference study between Perlis FM and Melody FM by recording few radio reception videos, the videos will be published on YouTube.

==Distance between both stations sites and Kerian district== 

* Melody FM 103.0MHz Gunung Ulu Kali: 230km-250km
* Perlis FM 102.9MHz Padang Pauh: 150km-170km