The Shamrock Banks Meteor Fence

This is the Meteor Fence with the new SDR. We are monitoring the carrier signal of Channel 2 TV in N. Platte, Nebraska, some 1345 km to the West. This is beyond the range of my directional Yagi antenna. There are further stations in that direction in Colorado. There is also a Channel 2 in Indiana, but the Yagi is directional and pointed West, and indiana is to the South, outside the beam. We may have some interference from that Indiana station (which may give a very light signal) but the strong reflections are meteors. When Meteors enter the atmosphere 80km above the surface of the earth, they leave a brief ionized trail- This trail reflects the carrier signal of Digital Channel 2 (54.310MHz) and allows me to pick it up. The range of detection from my location is about 1000km. Meteors that pass between me and the station in Nebraska (out to about 1000 km) will result in a spike in the waterfall. The longer the spike, the longer the trail persists (and is indirectly related to the size of the meteor). Long traces are 'fireballs'. Short ones are on the order of shooting stars. The Blue Waterfall is centered on 54.310MHz, and you see the returns from the meteor trails in both the graph of the signal and the waterfall. Peak Meteor times are 12am to 12 Noon with a peak around dawn. This is due to the orbit of the earth- during those times my location is on the 'leading edge' of the earth in its orbit. Help the Channel by joining our channel as a member Patreon- https://www.patreon.com/bobthescienceguy or sending a Paypal for equipment (I do take requests for content) https://www.paypal.com/donate?hosted_button_id=ED65DTMU9AB8C Bob Be sure to check out the new channel https://www.youtube.com/channel/UCOHdBpPS0wOwPWPQEMWmvwA


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