On the subject of my suggestion to expand Gegar coverage in Pahang by having Fraser's Hill frequency on previous post, here I will roll out my analysis and suggestion about Gegar Central Pahang coverage.
On previous post, suggestion of Gegar FM Bukit Fraser 107.9MHz is to cover Western Pahang, but Central Pahang such as Maran, Sri Jaya and Jengka.
According to Gegar FM 107.9MHz Bukit Fraser coverage that I plotted via Nautel RF toolkit, Maran and Jengka are not covered by Gegar from Bukit Fraser, this causes Gegar listeners are not able to receive the station from Chenor till Gambang if they're driving from west areas to Kuantan or east. It can leave a gap between Chenor and Gambang. In respect of this matter, a gap filler transmitter in Bukit Senggora may be required, Maran and Jengka also have Gegar listeners.
Regarding Gegar Bukit Senggora proposal, I had mentioned this since August 2015, but I suggested medium to high power transmission about 2kW during that time and frequency FM 100.7MHz without involving Fraser's Hill transmission. Besides 100.7MHz, I was used to suggest 104.4MHz, but revoked due to commercial and coverage reason.
Alright, I may realize that Bukit Senggora has limited spectrum as it is located in Central Pahang where considered more surrounding sites, Bukit Senggora coverage is mainly in Maran, Chenor and Jengka, but some of areas within Maran district can receive radio signal from west coast region, notably Gunung Ulu Kali, Bukit Fraser, and Gunung Telapak Burok, possibly Gunung Ledang.
Back to August 2015 till 2017, my intention of THR Gegar Bukit Senggora FM 100.7MHz (later FM 104.4MHz) proposal is to cover Temerloh, Bera, Jengka, Maran and Mentakab. On October 2016, I went to Central Pahang at the first time, reception of MY FM 100.6MHz from Gunung Telapak Burok was still crystal clear in Temerloh and Bera, then Chenor still can receive MY FM 100.6MHz clearly (reception test on April 2019). This indicated that FM 100.7MHz is not suitable to be used in Bukit Senggora if covers greater Central Pahang due to the interference, then I attempted to propose 104.4MHz.
As today, FM 104.4MHz is likely not suitable to be used because Manis FM already occupied FM 103.8MHz in Bukit Senggora at 0.5kW power for Central Pahang, so 103.8 and 104.4 leave 300kHz separation from Pahang FM 104.1MHz Bukit Pelindung/Best FM 104.1MHz Gunung Ulu Kali.
What I can propose about Gegar FM Central Pahang gap filler frequency in Bukit Senggora is to suggest FM 100.8MHz, this could be the worst proposal, but it may be safe to transmit. The minimum frequency separation between Bukit Senggora and Gunung Ulu Kali is 200kHz, but regarding this, it can be a special case because Selangor FM 100.9MHz Gunung Ulu Kali does not target Pahang areas. Moreover, Selangor FM 100.9MHz Gunung Ulu Kali only targets Selangor states by using directional antenna to beam west direction, meanwhile West Pahang areas where can receive that radio station are considered "bonus" or "secondary coverage". From my listening experience, Selangor FM 100.9MHz reception is clear until Karak only, then the reception goes faded after Lanchang, so Temerloh and Bera cannot receive Selangor FM 100.9MHz clearly.
While Selangor FM 100.9MHz covers only Selangor, so I think there is no interference within the coverage areas if Gegar FM uses 100.8MHz in Bukit Senggora to cover Maran, Chenor, Jengka and Sri Jaya. For those interference happens in Temerloh and Bera (example), they are not under coverage of Gegar FM 100.8MHz Bukit Senggora as these areas can tune to clearer frequency FM 107.9MHz from Fraser's Hill.
==My proposal of THR Gegar FM Central Pahang frequency (2019)==
* Frequency: FM 100.8MHz
* Power: 0.25kW
* TX Site: CELCOM Bukit Senggora, Pahang
* Target areas: Maran, Jengka, Chenor, Chini and Sri Jaya
==RF analysis==
100.6MHz: MY FM Gunung Telapak Burok
100.8MHz: Gegar FM Bukit Senggora
<200kHz, OK>
100.8MHz: Gegar FM Bukit Senggora
100.9MHz: Selangor FM Gunung Ulu Kali
<100kHz, OK>
100.8MHz: Gegar FM Bukit Senggora
101.1MHz: MY FM Bukit Pelindung
<300kHz, OK>
According to the coverage of Gegar FM 100.8MHz Bukit Senggora, Maran, Jengka and Sri Jaya can receive loudly and clearly, reception is expected to be clearer than Bukit Fraser FM 107.9MHz (suggestion).
Based on RF analysis, FM 100.8MHz is better than FM 100.7MHz in Bukit Senggora transmission, so MY FM 100.6MHz Gunung Telapak Burok will have no interference on its targeted areas within Pahang state.
If Astro Radio adds two extra frequencies for Gegar in further Pahang (proposal mainly FM 107.9MHz Fraser's Hill for West Pahang; then FM 100.8MHz Bukit Senggora for Central Pahang), the competition against Manis FM will be very stiff enough in Pahang.
In conclusion, this article is only my personal review and suggestion, but it is subject to Astro Radio decision. The most important is to make West Pahang coverage from Fraser's Hill as first priority and initiative, then Bukit Senggora works as gap filler transmission for Gegar in Pahang to fill gap between the coverage of Bukit Fraser and Bukit Pelindung.
==Gegar frequencies in Pahang==
* 88.8MHz: Kuantan from Bukit Pelindung
* 107.9MHz: West Pahang from Bukit Fraser (my proposal)
* 100.8MHz: Central Pahang from Bukit Senggora (my proposal, but low power transmission)
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