Showing posts with label #RTM. Show all posts
Showing posts with label #RTM. Show all posts

Monday, 21 July 2014

"FM 88.7MHz" in Perak

The "FM 88.7 MHz" in Perak is Radio Klasik (Klasik Nasional), but it covers only Tapah and can be heard in some areas like Bidor, Langkap and Temoh. Radio Klasik 88.7MHz is transmitted from Changkat Rembian and its output power is only 0.1kW (100 kW, only can cover up to about 25-30 km), only can be heard clearly in Tapah, meanwhile Bidor, and Sungkai are not clear.

Alternatively, Radio Klasik still can be received on 98.3MHz from Gunung Ulu Kali (for Selangor and Kuala Lumpur) or 88.3MHz from Gunung Kledang (for Ipoh and Central Perak) in Tapah (depends on area). The Gunung Ulu Kali transmitter signal in Tapah is clearer than Gunung Kledang.

Current radio stations which have Changkat Rembian, Tapah transmitter:
1. ERA FM (102.0MHz; previously carried by THR Raaga before 2009)
2. Perak FM (97.3MHz; covers South Perak areas up to Terolak with 0.5kW output power)
3. Radio Klasik (88.7MHz; Tapah only with 0.1kW low output power)

Former radio stations with Changkat Rembian transmitter:
1. 988/Redi FM 98.8 (94.1MHz; ended service since June 2000)*
2. Red 104.9/Red FM/RFM (101.2MHz; ended service since July 2000)*

*References: www.asiawaves.net

Basically, setting up a radio frequency in Tapah is not needed if the radio station has Gunung Ulu Kali and Gunung Kledang transmitter unless it is regional radio station like Perak FM because Tapah still can receive radio signal from Gunung Ulu Kali.



In my opinion, RTM should replace its "Radio Klasik 88.7MHz" with Asyik FM because Asyik FM has no Perak frequency (mainly Ipoh) yet. At the same time, RTM should place "88.7MHz" transmitter site in Gunung Kledang, instead of Changkat Rembian to cover Perak areas. Consequently, listeners in Tapah still can tune to Radio Klasik on 88.3MHz or 98.3MHz.

Currently listeners in Perak receive Asyik FM on 105.1MHz from Cameron Highlands (mainly Central Perak) and 102.5MHz from Gunung Ulu Kali (mainly in South Perak), two transmitter are quite weak in Perak areas because both of them are "adjacent channel interference" with other radio station like IKIM.FM 102.7MHz and Red FM 104.9MHz. If RTM fully replaces "88.7MHz" with Asyik FM and transmits from Gunung Kledang, the listeners can receive Asyik FM on 88.7MHz in many areas of Perak (Ipoh, Kampar, Sungai Siput, Gopeng, Batu Gajah, Tronoh, Tapah, Bidor, Teluk Intan, Sitiawan, Kuala Kangsar, Taiping, Sauk, Padang Rengas, Seri Iskandar, Lumut, Bota, Pulau Pangkor, Ayer Tawar, Sungkai, Langkap, Kampung Gajah and some areas of Parit Buntar/Bagan Serai/Kamunting/Selama/Batu Kurau).



To cover many areas in Perak, the transmitter power of "88.7MHz" from Gunung Kledang should be full power (5kW or 10kW). May be Lenggong can receive 88.7MHz, but not confirm there can receive or not.

As I mentioned before, the 4 empty frequencies in Taiping (88.8MHz, 92.4MHz, 93.2MHz, and 105.7MHz). Once if SKMM want to keep 88.7MHz and 93.3MHz for radio stations in Ipoh, the empty frequencies in Taiping only remain two (92.4MHz and 105.7MHz).




Saturday, 4 January 2014

Perak FM in Gerik, Pengkalan Hulu, Klian Intan and Hulu Perak


The frequencies of Perak FM in Hulu Perak district are 94.2MHz from Lenggong, 96.1MHz from Gerik, meanwhile other Hulu Perak areas receive on 104.1MHz from Bukit Larut, Taiping, but there has weaker reception of Perak FM in Klian Intan, Pengkalan Hulu and Northeast parts of Hulu Perak areas, it may be received via MW 657kHz from Gerik with 20kW power and weaker transmitter 96.2MHz from RTM Gerik. This radio station also can be received in some parts of Thailand area (Betong).

The Perak FM Gerik frequency, 96.1MHz clash with 988 96.1MHz from Gunung Jerai after Gerik (to Klian Intan) due to same frequency (co-interference), the transmitter power of 988 96.1MHz is 10000 watts (equal to 10kW), which can cover whole Kedah, Perlis, Langkawi, Penang and some parts of North Perak (may include Hulu Perak).

RTM Perak FM 96.2MHz from Gerik has only 0.1kW (100W) transmitter power, which only can cover Gerik, meanwhile 96.1MHz in other area than Gerik (Klian Intan, Pengkalan Hulu) receive 988 from Gunung Jerai. 

Recently I find that Perak FM may have been shifted its Gerik frequency to 96.2MHz on MCMC/SKMM website. Here's the link: http://www.skmm.gov.my/Legal/Registers/Register-Of-Apparatus-Assignments-Search.aspx?src=rtm%20gerik&fld=Location&type=AABroadcast

96.2MHz is still clashed with 988 96.1MHz in Klian Intan and Pengkalan Hulu, even after Gerik, but interference may be reduced about 20-30%.

RTM Perak FM Gerik frequencies should put 95.9MHz, so the interference with 988 96.1MHz may be reduced 50% and above because the frequency distance between them is 0.2MHz. Although if Perak FM place Gerik frequency on 95.9MHz for Gerik, Pengkalan Hulu, and Klian Intan, the reception of two radio station may be same.

988 can be received in Gerik on 96.1MHz, but not clear, although if Perak FM uses 95.9MHz. Meanwhile, Perak FM 95.9MHz still can be received in Klian Intan and Pengkalan Hulu, but average signal.

In other cases, if RTM Perak FM wants to cover Pengkalan Hulu, and Klian Intan on FM frequencies, they should change their Gerik frequency to 95.9MHz and increase their transmitter power which can cover those areas (1-2 kW). 

Normally TV and radio stations in Klian Intan and Pengkalan Hulu are received from Baling, Kedah or Gunung Jerai.


If Perak FM used high power transmitter for Gerik area and 95.9MHz, Pengkalan Hulu and Klian Intan and some parts of Northeast Hulu Perak district can receive Perak FM signal from Gerik, but may weak.

Tuesday, 26 November 2013

RTM Negeri FM in Rembau/Tampin. Review on Negeri FM 95.7MHz

Currently Negeri FM has 3 frequencies, mainly 92.6MHz in Seremban/Port Dickson/Kuala Lumpur/Selangor/Jelebu/Jempol (Gunung Telapa Burok), 107.7MHz in Tampin/Gemas/Gemencheh/Melaka/North Johor (from Gunung Ledang), and 95.7MHz in Tampin (from Bukit Tampin), meanwhile the another 3 frequencies were closed down, there are:

- 101.3MHz in Port Dickson (replaced by 92.6MHz from Gunung Telapa Burok)
- 107.9MHz from RTM Seremban (frequency was taken over by Klasik Nasional, then closed down in December 2009 and replaced by 92.6MHz)
- 96.3MHz in Gemencheh (replaced by 107.7MHz from Gunung Ledang)

In the past year, Negeri FM had 6 frequencies for Negeri Sembilan states because:

1. The main Seremban frequency (from Gunung Telapa Burok), 92.6MHz reception was weak and its transmission power was 0.1kW, only covered Jelebu and Seremban. The reception was improved and its transmission power was increased since November 2009. Therefore, Negeri FM 92.6MHz could cover 80% of Negeri Sembilan state, it also could be heard in Kuala Lumpur, Selangor and West Pahang, even the areas where 100km from Gunung Telapa Burok could be heard too.

2. Negeri FM had not established a frequency for southern parts of Negeri Sembilan like Tampin, Gemencheh, Gemas and Rembau, which transmitted from Gunung Ledang yet.

3. The reception of Negeri FM 92.6MHz was not clear in Port Dickson, 101.3MHz was established in 1990's. The Port Dickson frequency, 101.3MHz was closed down in late 2010 since P. Dickson can receive 92.6MHz well and 101.3MHz was interfered with THR Raaga 101.5MHz, which from Gunung Telapa Burok (Seremban).

RTM Orang Asli radio station, Asyik FM had expanded its coverage in Johor on 95.6MHz from Gunung Ledang in January 2011. I guess Negeri FM 95.7MHz from Bukit Tampin may not clear in Gemencheh and Gemas anymore.

In my opinion, Negeri FM 95.7MHz from Bukit Tampin may be considered as "extra frequency" because Tampin, Rembau and Johol can receive Negeri FM 107.7MHz from Gunung Ledang well. South Rembau like Kota receive 107.7MHz from Gunung Ledang is slightly clear, meanwhile 92.6MHz is still ok there. RTM should "beri laluan" (give away) to Asyik FM 95.6MHz to cover Melaka and Negeri Sembilan. Meanwhile, 95.7MHz was interfered by Fly FM 95.8MHz from Gunung Ulu Kali (Klang Valley) in Rembau, even 92.6MHz or 107.7MHz is clearer than 95.7MHz. I think RTM can increase Negeri FM Gunung Ledang 107.7MHz (for southern parts of Negeri Sembilan) transmission power to cover Rembau and Tampin, to replace 95.7MHz. So, Negeri FM 95.7MHz can be ended transmission. The Bukit Tampin transmitter 95.7MHz is not needed anymore.

Negeri FM 107.7MHz is more stable than 95.7MHz in Rembau and Tampin.

Negeri FM in south parts of Negeri Sembilan and Melaka (exclude 95.7MHz):

1. Kota- 107.7MHz
2. Pedas, Dangi, Linggi & Johol- 107.7MHz/92.6MHz
3. Tampin, Alor Gajah- 107.7MHz
4. Rembau- 107.7MHz
5. Pulau Sebang- 107.7MHz
6. Gemencheh, Ayer Kurning & Gemas- 107.7MHz