DC_BLOCK_FOR_ACTIVE_ANTENNA_AND_DOWNCONVERTERS

Published:2009/7/12 22:13:00 Author:May | From:SeekIC

A suitable dc block and power source for active antennas and downconverters can be made from a few components as shown. This circuit is suitable for frequencies from 50 kHz up to VHF. A shielded case should be employed to prevent stray signal pickup. Dc power supplied to the active antenna or downconverter, via the coaxial signal ca-ble, is 12 V at 30 mA.



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