Today is 31th December 2017, it is the last day of 2017. I had a half day trip in Pahang just morning today, my destination for today morning trip is Lanchang, Pahang to visit Elephant Conservation Park.
From Kuala Lumpur to Pahang, we listen to radio station by tuning frequencies from Gunung Ulu Kali due to its wide coverage. Actually Gunung Ulu Kali can cover many Pahang areas because it is the highest elevation mountain in central Malaysia.
For Nasional FM, its frequency in West Pahang normally is FM 95.3MHz from Gunung Ulu Kali. Nasional FM 95.3MHz does not only cover Kuala Lumpur, Selangor and South Perak, it covers West Pahang also such as Bentong, Raub, Kuala Lipis, Karak, Lanchang, Bera, Temerloh and Chenor. When I reached Lanchang in the morning, Nasional FM 95.3MHz is still clear there, even 91.7MHz from Gunung Telapak Burok is receivable, just its reception is not clear as 95.3MHz, but I suddenly receive Nasional FM on another frequency, FM 106.2MHz, just closed with City Plus FM 106.0MHz Gunung Telapak Burok which is still receivable there.
FM 106.2MHz reception is clear in Lanchang and Karak when tune via car radio with STEREO form, but reception is not really stable and clear as 95.3MHz if use mobile phone radio, even no signal. In addition, FM 106.2MHz shows unstable stereo reception if receive via advance radio receiver, TECSUN PL-380, sometime it would jump to MONO reception.
I was very curious of Nasional FM additional frequency 106.2MHz in Lanchang and Karak. Seriously I did not know where is FM 106.2MHz transmitted from, plus I also want to know what are the covered areas of FM 106.2MHz.
Talking about its reception, FM 106.2MHz is not really clear in Kuala Gandah elephant conservation park as 95.3MHz. In Karak, FM 106.2MHz is still receivable, reception is still on par. Meanwhile FM 106.2MHz signal goes off when starts to enter Bentong area border.
==Technical information of Nasional FM 106.2MHz==
* Power: unknown, but roughly 0.25kW as RTM gap filler transmitters now are running at least 0.25kW, but mostly 0.5kW.
* Transmitter location: Unknown (but suspect within Lanchang or Karak)
* Targeted location: Unknown (but may target those West Pahang areas where can't receive Gunung Ulu Kali signal clearly)
I hope I could verify the TX site of FM 106.2MHz as soon as possible.
When Nasional FM is using FM 106.2MHz, City Plus FM cannot change its frequency to 106.1MHz or 106.2MHz and locate in Gunung Ulu Kali. This can cause interference to Nasional FM 106.2MHz coverage, but Nasional FM can be received on 95.3MHz.
==RF analysis==
106.0MHz: City Plus FM Gunung Telapak Burok
106.2MHz: Nasional FM Lanchang/Karak
<200kHz, OK>
106.2MHz: Nasional FM Lanchang/Karak
106.4MHz: MY FM Gunung Ledang
<200kHz, OK>
106.1MHz: Ai FM Bukit Pelindung
106.2MHz: Nasional FM Lanchang/Karak
<100kHz, OK>
106.1MHz: City Plus FM Gunung Ulu Kali
106.2MHz: Nasional FM Lanchang/Karak
<100kHz, INTERFERENCE>
106.2MHz: City Plus FM Gunung Ulu Kali
106.2MHz: Nasional FM Lanchang/Karak
<0kHz, CO-CHANNEL INTERFERENCE>
106.2MHz: Nasional FM Lanchang/Karak
106.7MHz: Ai FM Gunung Ulu Kali
<500kHz, OK>
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