BG2EFX Just now, when I was transmitting at an angle of around 60 degrees, I received two immediate returns. My device can only transmit but not receive or decode, so I'm not sure if it's mine. Later, I saw that your gateway also received all the signals, including those from others and ISS itself. It's possible that when my angle is good, yours isn't. After all, we are about 300 kilometers apart.