Therefore, in improved receiver circuits, in order to match the antenna impedance to the receiver's impedance, the antenna was connected across only a portion of the tuning coil's turns . adjustment of both the resonant frequency and the turns ratio.
12.
Some modern crystal sets use a ferrite core tuning coil, in which a ferrite magnetic core is moved into and out of the coil, thereby varying the inductance by changing the magnetic permeability ( this eliminated the less reliable mechanical contact ).
13.
:: But if the normal radio scanners are freely available, I don't see why would modding a FM receiver ( or building one from scratch with the tuning coils slightly modified ? ) be illegal .-- G 04 : 14, 26 June 2007 ( UTC)
14.
There were apparently heat-seeking missiles used to take out the tuning coil of every antenna, there were fragmentation bombs used to take out the parabolic dish fore and aft . On the first strafing run, virtually all communications and all means of survival were destroyed.
15.
There were apparently heat-seeking missiles used to take out the tuning coil of every antenna, there were fragmentation bombs used to take out the parabolic dish fore and aft . On the first strafing run virtually all communications and all means of survival were destroyed.
