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ADS-B active receiving antenna 1090 MHz Hot ADS-B+ Lna Filter ADS-B 1090mhz Bandpass Filter For Software Radio Sdr
3.31
$
16
orders
/
7
reviews
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Customer Reviews
R***s
January 28, 2021
Looks like a good design, but needs some tweeks. Photos show feet of connectors soldered to the back side of the board. The unit I received was not soldered on the back side and the shell of the output connector had no connection to the ground plane on the back side of the board. I will solder the back side. TP3 appears to be the negative terminal and TP4 the positive terminal for the power supply. Wires supplied were not soldered to the board. Testing with a VNA shows the filter is tuned a bit high and SWR could be improved (which will improve insertion loss). Can fix easily with bits of copper tape at the ends of the resonators. I am happy with the product. Just having fun making it better.
K***k
December 12, 2020
Good quality