Wireless Guitar Bug

I would like to build a small transmitter and receiver for a guitar. It could be a FM transmitter as long as it is tiny. Can anyone help me?

-MATT-

Guitar bug

The website talkingelectronics.com has a nice circuit for a guitar transmitter called the beetlemkIII.

the antenna is 60cm..is that going to be sticking out of my guitar?
If it is, is there a way to boost the range so i can make the antenna shorter

would these work? **broken link removed**

depending on how far u r from the receiver, an antenna may not even be required.

wich transmitter r u planning on using? i hope not the 300W one, then everyone within a couple miles or somethin would probly hear ur guitar :lol:

i was gonna use the beetle mkiii plans. it has a 60cm antenna for 150 meters. i want about 100 meters, but 150 will be fine, but i dont want a long antenna, so ~how many watts would i need for about a 2 inch antenna?

you just need small oscillator and modulate it striaght from the pickup.
you can always use one of guitar strings as antena. :lol:

^ you lost me :lol:
whats and oscillator and what do you mean by modulate?
also, are you talking about the pickups on the guitar?
sorry i am new to electronics, but i would like to learn.

you can make small battery powered transmitter with no antena but
in this case you better have line of sight from guitar to receiver
and receiver shall be good one with good antena. on the other hand
this is not very practical and it is much better to put wire along guitar neck or stitch it with the belt or use one of the guitar strings as antena.

what type of guitar we are talking about? acoustic or electrical?
i guess it's acoustic since you wonder about pickup. pickup is device
built in electric guitar and basically works like microphone and it has
jack on the guitar body where you plug the cable to amplifier.
output is roughly in the range 50-300mV if i remember right
(don't party as much lately and didn't see one in years...).

for acoustic guitar i wanted once to try no microphone but never did.
just wanted to see if the vibrations are strong enough to affect shape
of the little RF coil (and so the oscillator frequency which is FM).

using microphone has one disadvantage - feedback sensitivity but you
can do some experimenting too. hope this gives you some ideas...

i have an electric, and i know what the pickups on the guitar are, but i thought you might have been talking about a different kind.

It sounds like you will need to do a lot of experimenting or make contact with people who work with wireless microphones to see if they will share their knowledge with you. Frequency, modulation (FM or other), antenna, power, receiving system characteristics, environment and your quality demands will all play a part in establishing the 'range' of the system.