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Propagation VHF

Propagation VHF. Onno W. Purbo Onno@indo.net.id. Target Jangkauan. Radius 10 km Jumlah station 10 (on sekaligus) BW / station 100KHz Total kebutuhan 1 MHz. Kondisi Alokasi AM. AM 500KHz – 1600KHz BW 20KHz Bisa banyak station …. Kondisi Alokasi FM. FM 88-108MHz (20MHz)

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Propagation VHF

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  1. Propagation VHF Onno W. Purbo Onno@indo.net.id

  2. Target Jangkauan • Radius 10 km • Jumlah station 10 (on sekaligus) • BW / station 100KHz • Total kebutuhan 1 MHz

  3. Kondisi Alokasi AM • AM 500KHz – 1600KHz • BW 20KHz • Bisa banyak station …

  4. Kondisi Alokasi FM • FM 88-108MHz (20MHz) • Kebutuhan Frekuensi • 1MHz saja! (5% dari total bandwidth) • Ingat Zakat 2.5%.

  5. Propagasi di VHF • Frekuensi 89MHz • TX Power 40 dBm (10Watt) • Antenna 3 dBi • Coax Loss 1-2 dB • RX Sens -60 dBm • FZC 17 meter • Margin 15 db • Jarak 6 miles (10 km)

  6. Frekuensi Re-use

  7. Alokasi FM • Misalnya 88-89MHz • BW 100KHz • 10 Station .. • Dalam radius 5-10 km

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