Looks very similar to the one i have spare, but mine, once switched, would totaly cut out all other signals, looks like that one constant broadcasts on a specifc freqency as well as allowing others though?
Once switched on, yes, it will constantly broadcast on a selectable channel, and the channels are selected to prevent any harmonics or bleedover from other sources or radio stations and that way you can find a frequency to broadcast on that will also allow a seperate radio to be used in the car - ideal for multimedia applications where different people in the car are listening to different sources.
Would i be right in saying that i wont get stereo no matter what, with a transmitrer. Or is it a case of stereo ariving over a certain strength. It seems possible to hack the application and double the output value, from what i've seen via google...?
Don`t quite understand? This is a Stereo FM modulator - plug in a stereo source, and stereo will be broadcast to your stereo FM radio.
Would a wired option be better?
Not on a vehicle that uses a booster on the antenna. The signal from the radio is often so poor that any extra connections or hardware in line can seriously compromise any radio reception. Yes, the modulator will work fine, but at the expense of the radio reception. If you have an external aerial, then its a 50/50 choice about wired / or Unwired. It really comes down to the quality of the hardware - 50p plug in fag lighter modulaters from China simply do not work.