ISM RF radiomobile coverage with low VHF antennas @145MHz in urban environnement (Saint-Malo)

ISM RF radiomobile coverage with low VHF antennas @145MHz in urban environnement (Saint-Malo)

Transmitter :

• Baofeng talkie-walkie
• VHF in ISM band
• CW=145MHz with BW=25kHz
• Power = 1 Watt (30 dBm)
• omnidirectionnal monopole antenna (see in pdf)
• coordinates in Lambert-93 / NGF-93 datum (see in pdf)

Receiver :

• Spectrum analyzer : RF explorer combo 3G right sma port, noise level=-105 dBm
• omnidirectionnal monopole antenna (see specification in CSV section)
• all data less than noise+3dB (i.e. -101 dBm) are removed in files

Roads :

• town of Saint-Malo in France
• about xxx points
• about 150 kms
• in order not to be pertubated by intermodulation, as other VHF talkie-walkies can be used in the zone, a special filtering is proceeding to remove bad data when VHF radio coexistence occurs

Special thanks to :

• The Major of Saint-Malo that permits this survey
• OpenData service of Saint-Malo City Council for numerical terrain model used by Gwaves simulation
• Simulation uses LIDAR data (IGN 2011), building digilitalisation made by Gwagenn with satellite photos
• DME build with Global Mapper v17
• My trainee Nathan from UIT of Saint-Malo who helps me during this survey

(C) GWAGENN 2016 - Jean-François LEGENDRE - Open Data Commons Open Database License (ODbL) www.gwagenn.com "This database is made available under the Open Database License: http://opendatacommons.org/licenses/odbl/1.0/. Any rights in individual contents of the database are licensed under the Database Contents License: http://opendatacommons.org/licenses/dbcl/1.0/"