SDR Guardian, Ham Radio Station Ctrlr, Antenna Sharing Isolator Sharer Switch

Interface your SDR receiver to your existing ham radio station safely, using one shared antenna for TX and RX! Never burn out the front end of SDR radios ever again. No need for a separate dedicated receive antenna that still has the potential to destroy your SDR from near field RF energy. This product is my proprietary and copyrighted design.

Each one is proudly made by my hand in the United States of America. Please see my detailed installation manual. Describing the product in operation.

Fully premptive antenna isolation switching. No possibility of power burst.

>135db isolation between Tranceiver and SDR. SDR audio mute on TX, or unmute for station monitoring. Adjustable bidirectional delay between RX and TX, 25-250mS. Adjustable CW/data release decay time, 50mS-1 second. LNA Gain: 5db from 160m-6m (SDR output only).

Active fail safe protection trigger voltage: 250mV peak (-2dbm or 0.6mW). Active fail safe response time: -45db within 35nS, 135db total. No other SDR antenna isolator even comes close. Please note: These are part of a batch of 25, fully functional, early production units. I call these v1.1.

The only difference between v1.1 and v2.0 is the latter will be on a single PCB, enclosed in a split extruded aluminum shell for a slightly more polished appearance. You can wait for those to come out, or you can start enjoying using your SDR in complete safety right now.

Free repair shall be provided during this period, but only for manufacturing defects. Under no circumstance shall the maker, or any other third party involved in the manufacture of this product, be held liable for any damage caused to any other user owned equipment resulting from the use of SDR Guardian. User accepts full responsibility for correct installation and operation of SDR Guardian.

---