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Propagation VHF Onno W. Purbo [email protected]

Propagation VHF

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Propagation VHF. Onno W. Purbo [email protected]. Target Jangkauan. Radius10 km Jumlah station10 (on sekaligus) BW / station100KHz Total kebutuhan1 MHz. Kondisi Alokasi AM. AM500KHz – 1600KHz BW20KHz Bisa banyak station …. Kondisi Alokasi FM. FM88-108MHz (20MHz) - PowerPoint PPT Presentation

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Page 1: Propagation VHF

Propagation VHF

Onno W. [email protected]

Page 2: Propagation VHF

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

Page 3: Propagation VHF

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

Page 4: Propagation VHF

Kondisi Alokasi FM FM 88-108MHz (20MHz)

Kebutuhan Frekuensi 1MHz saja! (5% dari total bandwidth) Ingat Zakat 2.5%.

Page 5: Propagation VHF

Propagasi di VHF Frekuensi 89MHz TX Power 40 dBm (10Watt) Antenna 3 dBi Coax Loss1-2 dB RX Sens -60 dBm FZC 17 meter Margin 15 db Jarak 6 miles (10 km)

Page 6: Propagation VHF

Frekuensi Re-use

Page 7: Propagation VHF

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