Lesen Radio Amatur kelas B Malaysia hanya dibenarkan mode-mode berikut A3E, F1A, F2A, F3E, J3E and R3E. (Dibawah lingkungan frekuensi yang dibenarkan sahaja)
Maknanya mode dibenarkan ialah SSB, AM, FM, CW bentuk FM. Itu saja.
Mode seperti RTTY, SSB CW, PSK31, MMSSTV dan digital mode tidak dibenarkan.
Kredit for V17 LD
Sejarah Radio Amatur bermula dengan kejayaan seorang berbangsa Italy bernama Guglielmo Marconi yang telah berjaya membuat penghantaran isyarat gelombang radio jarak jauh pada tahun 1894.
Ini diikuti dengan penghantaran pesanan menggunakan gelombang radio merentasi Terusan Inggeris (English Channel) pada tahun 1899. Seterusnya membuat penghantaran isyarat radio merentasi Lautan Atlantik pada tahun 1902
Radio Amatur ataupun juga dikenali sebagai 'Ham Radio' ialah hobi berkenaan membina, menguji-kaji dan berkomunikasi melalui radio. Pengguna-pengguna Radio Amatur ini saling berhubungan dengan rakan-rakan mereka seluruh dunia melalui beberapa set-set frekuensi radio yang telah ditetapkan.
Sekitar tahun 1904, banyak kapal laut sudah dilengkapi dengan radio. Barulah kemudian pada tu, bila terjadi bencana tenggelamnya kapal Titanic di tahun 1912 , Kongress Amerika Syarikat telah meluluskan undang-undang pertama bagi mengawal selia pemancaran radio di Amerika Syarikat. Bermula 1914, pengguna Radio Amatur telah mula berkomunikasi dan mengadakan satu sistem penghantaran mesej di antara mereka. Di Malaysia, radio amatur merupakan titik bermulanya perkhidmatan radio komersil.
Tidak seperti teknologi perhubungan lain, Radio Amatur membolehkan anda berhubung dari mana-mana tempat, pada setiap masa! Pada waktu-waktu bencana, Radio Amatur amat berguna, terutamanya kepada agensi-agensi penyelamat. Pada ketika lain, anda juga kadangkala boleh bercakap dengan para angkasawan atau membalikkan isyarat dari bulan! Anda juga boleh menghantar fail ataupun gambar secara digital.
Whether you would like to chat with your friends on the way to work or anywhere, check into a net for topics of a mutual interest, or volunteer for emergency services, amateur radio is first and foremost about communication. With hams that means two way communication by radio. Radios can be hand-held transceivers similar to a walkie talkie, a mobile unit for use in a car or other vehicle, or a base station with an outdoor antenna used for local or distance communication. Regardless of the type of equipment radio amateurs have a wide range of activities they can pursue. Some of these are:
Talking with friends within the local community using a hand-held transceiver (HT) on VHF (2 meters) or UHF (70 cm.). You can extend your HT range up to 50 miles or more by transmitting through a local repeater.
DXing. DX means distance communication and with the right equipment worldwide communication on the HF bands (10 through 160 meters) is a regular possibility.
Assisting with emergency and disaster communication. Organizations in the amateur community such as the Amateur Radio Emergency Service (ARES) prepare amateurs with the training needed to assist in emergency situations.
Technical Experimenting. Hams come from all walks of life ranging from technicians to engineers, teachers to scientists, and students to retirees. For many of them the attraction to the hobby is to build their own equipment whether it is just a simple antenna, something as complex as a transmitter, or an interface between their radio and a computer.
Contesting. Contesting is often called the "sport" of ham radio. Almost every weekend there is some form of amateur radio contest. Hams get on the air and compete to see who can make the most contacts in a limited period of time.
Talk To An Astronaut. Yes, it is really possible. Space stations do have ham radio equipment and licensed ham astronauts take the time to make contacts with amateurs on earth. Hams also have satellites where you can bounce a signal to communicate with other hams on earth.
Use Digital Communication. Connect a computer to your radio and install some software and you can be communicating digitally over the air. Some of these digital modes can be more effective in marginal transmission conditions and some even sport error free transmission.
Internet Communication. Using some of the latest technologies hams can supplement a modest station with Internet connections such as VOIP using Echolink.
Article picked from Segamat Ham Club.
