RTM should change Asyik FM Gunung Ledang (95.6MHz) and Negeri FM Bukit Tampin (95.7MHz) frequencies as they're intefering each other.

 

 

In Melaka, and some North Johor areas, I spotted Asyik FM 95.6MHz from Gunung Ledang and Negeri FM 95.7MHz from Bukit Tampin were interfering each other.

 

Melaka is having serious interference between Asyik FM 95.6MHz, Negeri FM 95.7MHz and Fly FM 95.8MHz since 2011.

 

95.6MHz: Asyik FM Gunung Ledang (0.25kW)

95.7MHz: Negeri FM Bukit Tampin (0.1kW)

95.8MHz: Fly FM Gunung Ulu Kali (2kW)

 

The interference does not really affect Negeri FM and Fly FM listeners in Melaka because they can tune to 107.7 and 94.0 from Gunung Ledang respectively.

In terms of history, Negeri FM uses 95.7MHz in Bukit Tampin was much earlier than Asyik FM 95.6MHz Gunung Ledang. In addition, Asyik FM launched 95.6MHz in Gunung Ledang 10 years ago only in 2011. Logically, RTM Asyik FM should change its Gunung Ledang frequency.

Next, Negeri FM 95.7MHz Bukit Tampin somewhat was interfered by Fly FM 95.8MHz from Gunung Ulu Kali in Rembau and some area in Kota where they're Bukit Tampin broadcast areas. To cover these areas with more stable reception, RTM Negeri FM should move its Bukit Tampin frequency to 95.6MHz. With this suggestion, Asyik FM has to change frequency too as Negeri FM occupies 95.6MHz in Bukit Tampin.

5 years ago, I proposed RTM to shutdown Negeri FM 95.7MHz Bukit Tampin transmitter with the reason of FM 107.7MHz can cover Rembau and Tampin, but RTM Negeri FM said that some of Rembau areas need Bukit Tampin transmitter because they cannot receive 92.6 and 107.7 clearly. 

Here is my proposal of frequency change for Asyik FM Gunung Ledang and Negeri FM Bukit Tampin transmitters.

==Negeri FM Bukit Tampin frequency change proposal==

* Frequency: FM 95.6MHz (migrate 100kHz from 95.7MHz)

* Power: 0.1kW (same as current, but can upgrade to 0.25kW)

* Result: Asyik FM has to change Gunung Ledang frequency

==RF analysis of Negeri FM 95.6MHz Bukit Tampin==

95.6MHz: Negeri FM Bukit Tampin

95.8MHz: Fly FM Gunung Ulu Kali

<200kHz, OK>

Result: No more interference from Fly FM 95.8MHz Gunung Ulu Kali in Rembau, Pedas and Kota. Better listening, compare to current 95.7MHz.

==Asyik FM Gunung Ledang frequency change proposal==

* Frequency: FM 100.9MHz

* Power: 0.25kW (same as current, but can upgrade to 0.5kW)

* Note: Asyik FM can share antenna system with Johor FM 105.3MHz to provide better transmission coverage.

==RF analysis of Asyik FM 100.9MHz Gunung Ledang==

100.9MHz: Asyik FM Gunung Ledang 0.5kW (mainly North Johor)

100.9MHz: Selangor FM Gunung Ulu Kali

<0kHz, OK>

100.9MHz: Asyik FM Gunung Ledang 0.5kW (mainly North Johor)

101.1MHz: Minnal FM Gunung Pulai

<200kHz, OK>

Results:

1. With frequency and antenna system changes of Asyik FM Gunung Ledang transmitter, Asyik FM can reach more coverage in North Johor, even part of Melaka and Negeri Sembilan, also Pahang.

2. As proposed frequency is same as Selangor FM 100.9MHz, and suggest to share antenna with Johor FM 105.3MHz, Asyik FM Gunung Ledang transmission will not cause interference to Selangor FM 100.9MHz Gunung Ulu Kali coverage in Tanjung Sepat and Sungai Pelek because Asyik FM 100.9MHz beams to Johor mainly like Johor FM 105.3MHz.

Previously I proposed the frequency FM 100.9MHz Gunung Ledang for Pahang FM transmission in Muadzam Shah, Keratong, Selancar...

If RTM changes Asyik FM Gunung Ledang and Negeri FM Bukit Tampin frequencies, there are advantages:

1. Interference will become zero as they're no longer interfering each other.

2. Asyik FM can expand more coverage in North Johor by sharing antenna with Johor FM 105.3MHz in Gunung Ledang after change to proposed FM 100.9MHz. Besides that, Asyik FM can reach more coverage in some Melaka, Negeri Sembilan and Pahang areas. Expect Asyik FM 100.9MHz has better reception than current 95.6MHz.

3. Negeri FM Bukit Tampin transmitter can cover Rembau and Kota even clearer after migrate to 95.6MHz, then no more interference from Fly FM 95.8MHz Gunung Ulu Kali in broadcast areas.

4. Asyik FM may benefit Melaka listeners as it can be listened in part of Melaka, despite it would have interference from Selangor FM 100.9MHz in North Melaka like Johor FM 105.3MHz which interfered by Suria FM 105.3MHz.

==Proposed frequency migration==

* Asyik FM 100.9MHz Gunung Ledang 0.5kW

* Negeri FM 95.6MHz Bukit Tampin 0.25kW

Those frequencies are my personal proposal, but the allocation and actual analysis are decided by MCMC.