zachtheterrible
Active Member
I'm revisiting your FM transmitter audio, I have it built exactly as in the picture, just using the oscillator and amplifier. My ipod is connected directly to the base of Q2. I'm running the whole thing off 9v. I didn't have the exact right values for the capacitors, so you can see the changes in the picture. I've made the circuit with the "ugly" UHF-friendly construction. I think it's called manchester or something like that?
Anyway, some weird things are happening with this circut. If I try to connect any kind of decoupling capacitors- I've tried .1uf, 100uf, and both of them together, the circuit quits transmitting at all.
I can hear it over the radio when there is no decoupling and the sound quality is nice, but the range is pathetic. Only about 30 ft.
It's only pulling about 20mA, which comes out to 180mW, I believe that it's supposed to be around 1W or so?
It should be alright running the whole thing off of 9v right?
Thanks
Anyway, some weird things are happening with this circut. If I try to connect any kind of decoupling capacitors- I've tried .1uf, 100uf, and both of them together, the circuit quits transmitting at all.
I can hear it over the radio when there is no decoupling and the sound quality is nice, but the range is pathetic. Only about 30 ft.
It's only pulling about 20mA, which comes out to 180mW, I believe that it's supposed to be around 1W or so?
It should be alright running the whole thing off of 9v right?
Thanks