Data-Gouv-ML/catalogue-des-donnees-Sql-Lite huggingface dataset:
ISM RF radiomobile coverage with low UHF antennas @446MHz in urban environnement (Saint-Malo)

**ISM RF radiomobile coverage with low UHF antennas @446MHz in urban environnement (Saint-Malo)**

_**Transmitter :**_
- Motorola talkie-walkie
- ISM Band in UHF
- CW=446MHz with BW=25kHz
- Power = 0.5 Watt (27 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 UHF talkie-walkies can be used in the zone, a special filtering is proceeding to remove bad data when UHF 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
- My trainee Nathan from UIT of Saint-Malo who helps me during this survey


DATA ARE COMING SOON

(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/"

Mots-clés : antennes-mobiles,couverture,ism,mesures,mhz,propagation-des-ondes,radio-electrique,radiomobile,saint-malo
Fréquence de mise à jour : unknown
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/"

Mots-clés : antennes-mobiles,ism,mesures,mhz,propagation-des-ondes,radio-electrique,radiomobile,saint-malo,vhf
Fréquence de mise à jour : unknown
DVB-T radiomobile coverage around Saint-Pern transmitter - multiplex R1 - channel 21 (474 MHz)

**DVB-T radiomobile coverage around Saint-Pern transmitter - multiplex R1 - channel 21**

_- transmitter information :_
- Saint-Pern - ground height = 178 m - pylone height=271 m
- PAR = 100 KWatts
- Antenna normalized directivity pattern is estimated from a 10 km flat open space measurement as : G(elevation) = - 1.8 * |elevation| in dB. If G<-30 dB, G=-30 dB (when elevation > 16.7°). Elevation = angle in degrees with z axis

_- receiver information :_
- monopole antenna mounted on a vehicule hr=1.5m (see datasheet in CSV section)
- antenna gain estimated by "double pesée" = +6.7 dBi (see EXCEL section)
- vehicule positions collected by USB 65-channel GPS Data Logger (see datasheet in GPX section)
- Spectrum analyser : RF explorer (noise level = -115 dBm)
- frequency band : 467 MHz to 482 MHz, 112 values
- all measured values less than noise+3dB (i.e. -112 dBm) are removed from files

_- roads information :_
- zone of ille-et-vilaine et cotes d'armor departments of France
- about 480K points
- about 660 kms
- in order not be in the coverage a small DVB-T emitter (less than 1 watt that can be identified on www.cartoradio.fr), we avoid to get into Rennes, Dinard, Saint-Malo ... 

(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/"_





Mots-clés : antenne,antennes-relais,dvb-t,ille-et-vilaine,mesures,propagation-des-ondes,radio-electrique,radiomobile,saint-pern,tnt
Fréquence de mise à jour : unknown