The development of communication technology has forced the internet users to find faster and stable internet network. Currently, WLAN is one of the wireless technology that has been widely used all over the place. This technology can provide good internet network for the internet users. WLAN technology allows users to access the internet network without having to be complicated by wiring problems. Therefore, the process of accessing internet through WLAN network can be done anywhere and not limited in one particular place as long as it is still within the WLAN network area.
In this article we will discuss about WLAN technology and its regulatory control in Indonesia.
What is WLAN?
WLAN stands for Wireless Local Area Network. This technology allows computer devices or smartphones to connect to internet network without having to use cables within the local area. By using radio frequency wave, WLAN can eliminate the need for physical cables, making it easier for the users to set up and access the internet network.
How WLAN works?
The WLAN technology works by utilizing radio waves. According to WLAN topology, router as internet traffic management device is required in order to create an access to the WLAN network.
Through radio waves, data will be sent to the router which its functions as a decoder. After being received by the router, the data will be sent to the internet network using an ethernet connection.
WLAN networks work in two directions, every data received via the internet is also sent back to the closest computer device in the form of a radio signal at the same time.
Or we can simply say the router device will receive the internet network and then send the internet network to the closest computer device that can receive the internet network via WLAN connectivity.
WLAN functions
As we already know, one of the WLAN functions is to connect the computer devices to the internet network. In addition to its main function, WLAN also has several other functions.
- Connectivity: it allows computer devices to connect to the internet network or local area network without having cables.
- Mobility: users can move freely as long as they are still within the WLAN network coverage area.
- Data transfer: devices that connected to WLAN network can easily exchange data and information with each other.
- Internet speed: most of the time WLAN network has better internet speed than cellular network.
Benefits of WLAN
There are some benefits that internet users can get when they use WLAN network.
- Accessibility: because its operates wirelessly, cables are not required to connect to the internet network. WLAN technology users can be more comfortable in accessing the internet network from anywhere within the WLAN network coverage area.
- Flexibility: WLAN networks can provide freedom for users to move around as long as they are still within the WLAN network coverage area. Therefore, WLAN network installations are widely used in homes, offices, cafes, and public places.
- Easy installation: WLAN networks have a relatively easy installation process and do not require complicated cables. Users only need to install the router and conduct the necessary configurations.
Specifications of WLAN
It is important to know the available radio frequencies for WLAN networks. This frequency allocation is usually regulated by the authority of each country. In Indonesia, WLAN frequencies have been allocated to the frequency bands of 2.4 GHz and 5 GHz with detailed specifications as follows.
| Frequency band | Frequency range | Bandwidth | Channel |
| 2.4 GHz | 2400 – 2483.5 MHZ | 20 MHz | 1, 6, 11 (2412, 2437, 2462) |
| 5 GHz | 5150 – 5250 MHz | a). 20 MHz, b). 40 MHz, c). 80 MHz, | a). 36, 40, 44, 48 (5180, 5200, 5220, 5240); b). 38, 46 (5190, 5230); c). 42 (5210) |
| 5 GHz | 5250 – 5350 MHz | a). 20 MHz, b). 40 MHz, c). 80 MHz, | a). 52, 56, 60, 64 (5260, 5280, 5300, 5320); b). 54, 62 (5270, 5310); c). 58 (5290) |
| 5 GHz | 5725 – 5825 MHz | a). 20 MHz, b). 40 MHz, c). 80 MHz, | a). 149, 153, 157, 161 (5745, 5765, 5785, 5805); b). 151, 159 ( 5755, 5795); c). 155 (5775) |
Regulatory control for WLAN in Indonesia
As previously mentioned, WLAN is operated by utilizing radio frequency waves. Therefore, every device that has a WLAN feature have to meet the applicable technical standards in Indonesia. Fulfillment of this requirement is by processing the product certification called DJID certification.
Ownership of DJID certificate indicates that WLAN device has complied with applicable technical regulations in Indonesia. In addition, DJID certificate also provides assurance to users that WLAN device has met the standards of safety and will not cause interference.
In Indonesia, WLAN devices can work on the frequency band of 2.4 GHz and 5 GHz as mentioned in technical regulation KEPMEN KOMDIGI NO 12 year 2025. According to this technical regulation, there are there classification of use for WLAN network in Indonesia.
- Access type 1
- Access type 2
- Backhaul
Here are the applicable frequency range and output power for both WLAN access type 1 and 2.
| Frequency range | Output power (Access type 1) | Output power (Access type 2) |
| 2400 – 2483.5 MHZ | < 27 dBm EIRP (500 mWatt) | < 36 dBm EIRP (4 Watt) |
| 5150 – 5250 MHz | < 23 dBm EIRP (200 mWatt) | N/A for Indonesia |
| 5250 – 5350 MHz | < 23 dBm EIRP (200 mWatt) | N/A for Indonesia |
| 5725 – 5825 MHz | < 23 dBm EIRP (200 mWatt) | < 36 dBm EIRP (4 Watt) |
The sample requirement for WLAN testing is conducted sample within test mode. During the testing, the lab will conduct measurement several testing parameters. If all WLAN testing parameters are declared passed, then the test report of WLAN can be used for the DJID certification process.
If you have any question related to DJID certification, please don’t hesitate to contact us by sending enquiry to info@narmadi.com.
