If you are listening to a radio station on FM 93.9MHz in Georgetown, Butterworth, Bukit Mertajam, Seberang Jaya, Permatang Pauh and most of Penang areas, you will hear the co-channel interference of two different radio stations.
In fact, FM 93.9MHz is used by two different radio stations for different broadcast coverage. At first, Mutiara FM uses this frequency in Gunung Jerai to cover northern part of Penang Island, covering from Tanjung Bungah to Teluk Bahang where 95.7MHz Bukit Penara transmitter cannot be tuned there, next Nasional FM is also using FM 93.9MHz in Bukit Penara and Bukit Genting for Paya Terubong and Balik Pulau respectively to cover the blindspot coverage of FM 100.5MHz Gunung Jerai transmitter.
Both radio stations are using low power transmitters, but different coverage.
* Mutiara FM 93.9MHz Gunung Jerai at 0.1kW power (Tanjung Bungah, Batu Ferringhi, Teluk Bahang)
* Nasional FM 93.9MHz Bukit Penara at 0.25kW power (Paya Terubong & Ayer Itam)
* Nasional FM 93.9MHz Bukit Genting at 0.1kW power (Balik Pulau & Teluk Kumbar)
Mutiara FM 93.9MHz Gunung Jerai has co-channel interference with Nasional FM in most of Penang areas, but the signal of Nasional FM is actually transmitted from Bukit Penara, not Bukit Genting actually. If you are tuning FM 93.9MHz at Penang Bridge, the co-channel interference happens between Mutiara FM from Gunung Jerai and Nasional FM from Bukit Penara.
The co-channel interference on 93.9MHz does not affect the listeners because both radio stations have clearer frequencies in affected areas of FM 93.9MHz.
When I was in Butterworth to tune my radio on FM 93.9MHz, Mutiara FM and Nasional FM were interfering each other, but I could tune them on other clearer frequencies.
The video was recorded on 26th November 2024 at 6am.
Nasional FM is tuned on 100.5MHz from Gunung Jerai, meanwhile Mutiara FM is tuned on 95.7MHz from Bukit Penara.
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