The operation of transmitters designed to jam or block wireless communications is a violation of the Communications Act of 1934, as amended ("Act"). See 47 U.S.C. Sections 301, 302a, 333. The Act prohibits any person from willfully or maliciously interfering with the radio communications of any station licensed or authorized under the Act or operated by the U.S. government. 47 U.S.C. Section 333. The manufacture, importation, sale or offer for sale, including advertising, of devices designed to block or jam wireless transmissions is prohibited. 47 U.S.C. Section 302a(b). Parties in violation of these provisions may be subject to the penalties set out in 47 U.S.C. Sections 501-510. Fines for a first offense can range as high as $11,000 for each violation or imprisonment for up to one year, and the device used may also be seized and forfeited to the U.S. government.
Another idea just to throw out there, if the microcontoller is to be upgraded i think it would be a great idea to replace the antenna board with an LCD / Switch board. Even just adding some sort of header that would allow for future add-ons would be quite beneficial in the long run.
The manufacuterer which I use is more focused on quality with low costs rather than fancy features, so there will be no black PCBs. But I will make the layout data available for download, so you can have your own PCB, even in black.
A bulk order is possible, but like you said, not before anything is successful up and running.
When I get confirmation that this new version works correctly, I'm willing to do a bulk order of black PCBs. Of course, I want there to be some sort of proof of interest before I go and order 40 sets. I don't want to have 35 sets sitting on my desk for 6 months.
Started with populating the main PCB and finished up the power supply section.
Wave Bubble 2010 Power Supply
IMG_8051.jpg (226.89 KiB) Viewed 2468 times
All output voltages are present and correct. We ave 3.3V, 5V, 12V and 22V down to a battery voltage of 2V!
ON/OFF switching with tactile switch via FET works nice...as long as no AVR is connected :-/ With AVR the circuit gets partly powered through the AVR and will drain the battery. Circuit and PCB design is already changed for further versions, but my actual hardware needs a quick and dirty fix.
Apart from the design flaw with the power switch all other tests are promising. I already wrote a test firmware to perform different hardware tests step by step. The RF stage is not assembled up to now, but tuning of VCOs works in full voltage span, also the overlay from the sawtooth generator works with 120Hz and 20KHz. Power switching for both VCOs and gain stages works too.