Lite FM 105.7MHz Gunung Ulu Kali has co-channel interference with RTM Kedah FM 105.7MHz Gunung Raya (Langkawi) in Perak, Malaysia

Before going to Perak on 30th August 2020, I planned for FM radio stations DX log list. My first priority of FM DX in Tanjung Piandang, Kuala Kurau, Bagan Serai and Parit Buntar was Thailand FM radio stations, then RTM Perlis FM 102.9MHz, meanwhile Gunung Raya Langkawi transmitted radio stations were second priority.

 

I could not receive RTM Perlis FM 102.9MHz Padang Pauh in Tanjung Piandang and Kuala Kurau nearby the seaside, so I tried to receive Langkawi radio stations in Perak.

Believe it or not? Lite FM 105.7MHz (Gunung Ulu Kali, Pahang/Selangor border) is having co-channel interference with RTM Kedah FM 105.7MHz (Gunung Raya, Langkawi, Kedah) in Perak, Malaysia.

 

Due to Kedah FM 105.7MHz Gunung Raya transmitter can overspill to numerous coastal areas in Kedah, Penang and Perak, the signal can be received weakly in Tanjung Piandang, and Parit Buntar, Perak.

In fact, the co-channel interference of two radio stations (Lite FM and RTM Kedah FM) on the frequency FM 105.7MHz happens in Tanjung Piandang, Perak, Malaysia.

 

Gunung Ulu Kali radio transmission somewhat can overspill to northwest Perak, but weaker signal, meanwhile Gunung Raya can overspill to part of Perak areas. Therefore, co-channel interference between two distant radio stations happens.

 

On 30th August 2020, I went to Tanjung Piandang Ban Pecah, Perak for making FM DX videos. By using TECSUN PL-380, there was co-channel interference between Lite FM and RTM Kedah FM when tuned to the frequency on FM 105.7MHz. Here are three videos that I recorded in Ban Pecah Tanjung Piandang, Perak.The co-channel interference between Lite FM and Kedah FM on 105.7MHz definitely does not affect both radio stations' listeners in Tanjung Piandang because Tanjung Piandang is not the broadcast coverage area of both radio station. In Tanjung Piandang, Lite FM can be listened on 89.3MHz from Bukit Larut, even 104.4MHz Gunung Jerai is still clear there, meanwhile RTM Kedah FM can be tuned on 97.5MHz from Gunung Jerai.

 

Kedah FM 105.7MHz has 161km distance from Gunung Raya to Tanjung Piandang, meanwhile Lite FM 105.7MHz has 236km distance from Gunung Ulu Kali to Tanjung Piandang. The interference is same as what I listened to Lite FM 105.7MHz in South Melaka, and Muar, Johor which has interference with RTM Nasional FM 105.7MHz from Gunung Pulai.