RMW: Contoh Disain Sambungan Wireless

Dalam contoh ini akan kita coba lihat coverage pancaran dari

Digipeater YC1LZ-2
Longitude   6 43.94" South (atau -6.770833)
Latitude  107 35.36" East  (atau 107.625)
Locator   OI33TF27BW
HAAT      1561 meter
Antenna   4 dBi Omni
Power     16 Watt
Lokasi    BNPB Tangkuban Perahu

Masukan Data Unit

Klik

File > Unit Properties

Masukan data

Name            YC1LZ-2
Elevation(m)    1561
LAT LON or QRZ  OI33TF27BW
Lock            di klik

Hasilnya akan tampak pada gambar

Masukan Data Peta

Klik

Files > Map Properties > Enter LAT LON or QRA

Masukan data

OI33TF27BW

Seperti tampak pada gambar

Pilih

Elevation Data Source > SRTM > Browse > Z:/home/onno/Geodata/srtm3

Atur lebar peta secukupnya. Default 50 km. Kita dapat memperlebar misalnya 300 km.

Height > 300

Jika semua sudah selesai klik

Extract

Semakin lebar peta / wilayah yang ingin di analisa, akan membutuhkan waktu lebih lama untuk download file SRTM yang dibutuhkan. Untuk frekuensi VHF kita bisa menganalisa untuk jarak 300 km-an jika kita pasang repeater di sebuah Gunung.

Hasilnya adalah sebagai berikut

2. Extract elevation data and create a map picture

Launch Radio Mobile program. In "Files" menu, select "Map Properties", and enter the following values:

Click on the "Apply" button. Once data extraction is finished, the program will generate the following picture:

Use "Picture properties" to force "Gray scaled slope" mode.

3. Position my QTH

Open "Unit properties" in the "Edit" menu and click on "Enter Latitude and Longitude". Fill as per the following:

Back to "Unit properties" insure that the unit is enabled and that a 38m elevation is shown before to apply, repeat for mobile:

4. Enter Network data

Open "Networks properties" in the "Files" menu and fill as per the following:

Net parameters tab:

Net topology tab:

System tab for base:

System tab for mobile:

Net membership tab for base:

Net membership tab for mobile:

On apply, the program is ready for Radio Coverage!

4. VHF Radio coverage!

In "View" menu, select "Radio coverage polar" and complete form as per the following:

Click "Apply" button to obtain the resulting picture.

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