Respected sir,
we are making project on the base of bus tracking using gps.
In this project our aim is to transmit the location of the bus (which we get from the GPS module)to the station(which is maximum 300 meter away from the bus).
which module is best to use(GSM transmitter and receiver or RF transmitter and receiver).and what is the maximum range of transmission by RF transceiver module.
ASK Rf modules will give a range up to 100Mts max in open air communications with matched antenna. Too those with better ranges are available but i never had an oppportunity to test those. Zigbee too will work fine for the said range.