Voyager MKII FM Transmitter

304

04:29:29

This is one of the smallest FM Transmitters available which is presented as a construction project.

Some of the parts have been substituted to represent the microphone & antenna.

The 5pF capacity to the left of the coil should be variable from 2pF to 10pF(Fine Adjustment of 2Mhz). The Variable Resistor should be replaced with a microphone, and the ground+resister line should be replaced with the antenna.

published 11 years ago

thebugger

11 years ago

You're transmitting at 700Mhz. Last ive heard FM is way under that (around 87-108Mhz)

thebugger

11 years ago

Also an usuall antenna impedance is around 50ohms and not 1Gohm.

faceblast

11 years ago

what if you're transmitting from space

hurz

11 years ago

In buggzys world AM and FM is simply entertaining broadcast Radio. AM some 100kHz and FM 87-108MHz. There is nothing between or above. And AM just exist in his world for broadcast radio old fashion style. He picked up some infos here and thiere and makes out of that buggzys laws, which you better don't break.... anyway back to this circuit, 1nH is extremly low inductivity and i am afraid this is wrong. Maybe around 50nH

zorgrian

11 years ago

Noise to get this going? It seems to do nothing i.e. it does not oscillate! How do I inject noise on the chrome application? eh?

Supermario_jj

9 years ago

@zorgian I don't think shaking your PC is an option.

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