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.
Adjusting LM-358 Max Vtune Voltage: Adjust the values for R20 and R21 to correspond more adequately with the VCO Tuning Voltage Limits and the input power you get at the LM-358 (IC9). The formula for the OP AMP in NonInverting Step Up Mode: Vout = Vin*((Rf/Ri)+1) Example: For the ROS 1200 3.3V((30kohm/10kohm)+1) = 13.2V Corrected: 3.3V((47.7/10)+1) = 19V ( max Vtune for ROS 1300 = 20V) For the ROS2700-1819+: 3.3((64.9/10)+1) = 24.717V (Max Vtune for ROS 2700 is 25V)
Last edited by Lcstyle on Sat Aug 13, 2011 2:57 pm, edited 3 times in total.