Antenna Readings From Muggia
Prepared by Huda El Hag and Hina Rubab
The test setup involved two locations, the transmitting end at GGH – ICTP ( N 45 ° 42' 15" , E 13 ° 43' 13" ) in which there was the following equipment:
- ORiNOCO RG-1000 Residential Gateway (The RG-1000 can act as a straightforward 802.11b access point) with the following specifications
- Single 10Base-T port
- 64-bit WEP (40-bit RC4)
- 15 dBm power output (~30 mW)
- Hyperlink Technologies DC power Injector / lightening protector Model BTCL2402SE ( 12V)
- Hyperlink Technologies Amplifier Model CLA2400ASE
- Tx Input 4 – 10 dBm
- Tx Gain 17dB
- 12 meters of cable ( 4dB attenuation)
- Parabolic dish ( 1.5 m diameter)
At the receiving end Muggia ( N 45 ° 36' 10" , E 13 ° 45' 10" ) , Altitude= 176 m,
LOS= 11.8 km there was the following equipment
- Solar panel (20volts, current 3 amperes , power 45 watts)
- Battery (12V)
- Lap top
Radio link between Galileo-ICTP and Muggia ( receiver)
Comparison of Antenna Readings from In Muggia location
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Signal strength (vertical polarization) dBm
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Signal strength (horizontal polarization) dBm
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Reference antenna
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- 58
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-
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Cantenna
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- 62
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- 70
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Biquad 1
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- 65
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- 75
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Biquad 2
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- 65
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- 70
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Parabolic dish with biquad
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- 65
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- 70
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Parabolic dish with biquad (Group 2)
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- 68
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- 75
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Radio link between Muggia and Galileo-ICTP ( receiver)
- Biquad antenna with parabolic dish at muggia is at vertical polarization and the receiver at Galileo is at Horizontal position
Signal strength = - 80 dB
- Both biquad antenna with parabolic dish at muggia and the receiver at Galileo is at vertical polarization
Signal strength = - 71 dB
- Both biquad antenna with parabolic dish at muggia and the receiver at Galileo is at horizontal polarization
Signal strength = - 78 dB