In message <3414654D.5684.0001@landcare.cri.nz>, Jagath Ekanayake writes >Greetings from NZ > >Could anyone please tell me somthing about usimg a PIC to make a radio >transmitter around 25-30 MHz operate in 1000 m range. As I see the >maximum frequency which they can operate is 20MHz. > >Many thanks in advance > >Jagath You can use a PIC (or any microcontroller) to control a frequency synthesiser (PLL or DDS) which can form the basis for a Tx. You'll still need a modulator and PA. You can't do it just with a PIC. Leon -- Leon Heller: leon@lfheller.demon.co.uk http://www.lfheller.demon.co.uk Amateur Radio Callsign G1HSM Tel: +44 (0) 118 947 1424 See http://www.lfheller.demon.co.uk/rcm.htm for details of a low-cost reconfigurable computing module using the XC6216 FPGA