Saturday 9 July 2016

Gunung Kledang and Gunung Brinchang vacant FM frequencies

Currently vacant FM frequencies for Ipoh Perak are getting limited as many broadcasters occupied the frequencies, no matter from Gunung Kledang itself, also Bukit Larut, Gunung Brinchang, Gunung Ulu Kali, and Changkat Rembian.

Last year, I had listed out three vacant frequencies of Gunung Kledang Ipoh. There are 93.3MHz, 94.9MHz and 93.9MHz. 

Among these three vacant frequencies, I don't really suggest 93.9MHz to be occupied by any stations in Gunung Kledang because of Bernama Radio 24. In case if Bernama Radio24 is willing to expand its coverage to greater Klang Valley and neighboring states like Perak, Pahang and Negeri Sembilan, this can cause Bernama Radio24 will be unable to migrate its site to strategic location, Gunung Ulu Kali.

In addition, if 93.3MHz is occupied in Gunung Kledang, the 93.9MHz shall not be occupied in Gn Kledang as 300kHz plus minus to Hitz FM 93.6MHz Bukit Larut.

About FM 94.9MHz, basically it can be used in Gunung Kledang, but I found that 94.9MHz Gn Kledang can interfere to the coverage of Radio Klasik FM 94.9MHz Gunung Jerai.

Look at this:
Interference in Kedah! Minimum frequency separation between Gunung Jerai and Gunung Kledang must be 100kHz.

For Gunung Kledang, only 93.3MHz can be occupied, but I already suggested this frequency to BFM 89.9 to cover Ipoh and Central Perak. 

In October 2015, Media Prima acquired CLSB and the stations Ultra and Pi Mai become Kool FM since March 2016. I find the Kool FM also face its difficulties to reach Perak, but I suggest Kool FM to cover Ipoh by launching a transmitter in Bukit Larut on FM 105.7MHz.

There may be a battle between BFM 89.9 and Kool FM to get FM 93.3MHz in Gunung Kledang for Ipoh. If one of them is failed to get 93.3MHz in Gunung Kledang, the station need to use Gunung Brinchang to cover Ipoh.

==Vacant frequencies in Gunung Kledang==
- FM 93.3MHz

==Vacant frequencies in Bukit Larut==
- FM 105.7MHz

==Vacant frequencies in Gunung Brinchang==
- FM 89.5MHz
- FM 102.3MHz
- FM 105.9MHz
- FM 107.3MHz

Gunung Brinchang coordination: 4°31'2.94''N, 101°22'56.9''E

RTM also has its radio and TV transmitters in Gunung Brinchang. As I know so far, RTM radio stations in Gunung Brinchang are increased transmission power to 0.5kW from old 0.1kW as RTM already upgraded all its gap filler transmitters to 0.5kW since 2014. I was told by MCMC that RTM already upgraded its transmitter power. Bukit Larut is increased to 1kW.

RTM upgraded its Gunung Brinchang stations power to 0.5kW, that's why some Selangor areas like Sabak Bernam, Sungai Besar, Sekinchan, Tanjung Karang and some Kuala Selangor areas can get the signal weakly. Normally 0.1kW can't reach there.

RTM Gunung Brinchang 0.5kW power can transmit to Kuala Lipis, and Merapoh areas. 

In order to cover Ipoh and surrounding areas with minimum field strength 54dBuV/m by using Gunung Brinchang, the transmitter power must be at least 2kW.

Now, let's talk about the RF analysis of Gunung Brinchang vacant frequencies.

1. ==FM 89.5MHz== 
- vs. FM 89.6MHz Bukit Asa: 100kHz, OK
- vs. FM 89.3MHz Bukit Larut: 200kHz, OK
- vs. FM 89.7MHz Bukit Chupak: 200kHz, best

2. ==FM 102.3MHz==
- vs. FM 102.0MHz Changkat Rembian: 300kHz, OK
- vs. FM 102.1MHz Bukit Larut: 200kHz, OK
- vs. FM 102.5MHz Gunung Ulu Kali: OK

3. ==FM 105.9MHz==
- vs. FM 105.7MHz Gunung Ulu Kali: 200kHz, OK
- vs. FM 106.1MHz Bukit Larut: 200kHz, not OK
- vs. FM 105.7MHz Bukit Larut (suggest for Kool FM): not OK 

4. ==FM 107.3MHz==
- vs. FM 107.1MHz Bukit Larut: 200kHz, OK
- vs. FM 107.5MHz Gunung Ulu Kali: 200kHz, OK

5. ==FM 107.7MHz==
-vs. FM 107.5MHz Gunung Ulu Kali and FM 107.9MHz Gunung Ulu Kali (if migrated): Not OK
- vs. FM 107.9MHz Bukit Larut: 200kHz, OK



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