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View Full Version : Help With an Electrical Circut



Trace
03-18-2010, 03:14 PM
I want to make a wideband radio transmittor. Nothing high power, just with a range from about 200mhz-1.2ghz ish.
Is there a simple way to do this on the cheap?

DaveW
03-22-2010, 07:52 AM
Best make sure it's legal first. Not sure what the public frequencies are in your area, have you checked it out?

-Dave

Oneslowz28
03-22-2010, 10:44 AM
I have a link somewhere to the open freq. in the US. Let me see what I can find. Also you might want to check out electro-tech-online.com and search for Audioguru he has several transmitter designs.

Trace
03-22-2010, 11:00 AM
Thanks guys. I think if it's less then like 5watts it's legal or something like that

DaveW
03-23-2010, 09:14 AM
There's legal issues power-wise, but there's also legal issues in the frequency. If you accidentally end up transmitting on a government frequency, expect some dudes with crowbars to show up, and cavity searches whenever you fly. ;)

Make sure you're in the public frequency allocations. Here's a link-PDF warning. (http://www.ntia.doc.gov/osmhome/allochrt.pdf) :)

-Dave

Trace
03-23-2010, 11:32 AM
Alright, well I don't need this circut anymore--please disregard

Oneslowz28
03-23-2010, 09:17 PM
no fun I was ready to fire up eagle

DaveW
03-28-2010, 10:47 AM
Sorry man, didn't mean to crap all over the party :(

-Dave

Trace
03-28-2010, 12:27 PM
Don't worry Dave, it's not because of what you said. I don't mind illegal broadcasting. It's just I have no need anymore