![]() Different makes of capacitors will give different frequencies. Just slightly compressing the coil dropped the transmission frequency by over 1 MHz.Īgain this is just a rough guide. Also note that the closer the coil windings are, the lower the frequency will be. These are only approximate as frequency is determined by the L1 and the specification of the transistors, but these ranges were observed in the prototype unit. ![]() The following table shows an approximate frequency range that can be expected for different values of C5. In the UK, domestic FM radio receivers cover from around 88 - 108MHz. The value of capacitor C5 controls the transmission frequency range.
0 Comments
Leave a Reply. |