Before Fly FM 99.1MHz launched in Kedah, its former frequency was 87.7MHz (now 87.8MHz is one FM) in Gunung Jerai.
This can cause many Kedah areas cannot receive FLY FM on 99.1MHz, but southern parts of Kedah like Baling, Sungai Petani, Kulim still can receive FLY FM on 89.9MHz from Bukit Penara, Penang, meanwhile northern parts of Kedah, Langkawi and Perlis totally cannot receive FLY FM on 99.1MHz. Alor Setar Tower transmitter is limited due to the height of the tower.
If North Kedah and Perlis cannot receive FLY FM, Fly FM can launch a transmitter in Gunung Raya (Pulau Langkawi) to cover Perlis, Langkawi and Northern parts of Kedah, even some of Central-Southern parts of Kedah still can receive FLY FM from Langkawi with weaker signal, the examples of the empty frequencies in Gunung Raya: 94.2MHz. Most of radio frequencies in northern region seems full, due to used by many radio stations from Kedah, Perlis, Penang and Thailand: Satun. So, 94.2MHz is the empty frequencies.
I suggested 94.1MHz to Fly FM before, but I found that 94.1MHz will clash with PFM 94.0MHz from Satun, Thailand. Therefore, 94.2MHz can avoid clashing.
FLY FM can solve the Kedah and Perlis coverage problem with launching Langkawi frequency.
If FLY FM create a new frequency in Pulau Langkawi on 94.2MHz, it may not a problem because there may not have any interference with any radio stations.
So, FLY FM may not have problem to launch Gunung Raya transmitter if it is on 94.2MHz, but the frequency usage is decided by MCMC (Malaysia Broadcast Regulator Department).
Empty FM empty frequencies in Pulau Langkawi and Perlis which are suitable to be set up in Gunung Raya: 88.5MHz, 90.3MHz, 94.2MHz, 94.3MHz, and 106.1MHz.