Unknown 408p9

From Signal Identification Wiki
Jump to: navigation, search

Unknown 408p9
408.9.png
Frequencies 409 MHz
Frequency Range 409 MHz - 409 MHz
Mode LSB
Modulation
ACF
Bandwidth "p1kHz" is not declared as a valid unit of measurement for this property.10 kHz
Location Taylor, TX (Austin)
Short Description https://youtu.be/tY-Rw5BQRek Observed on Wednesday June 4, 2025 at about 19:11 hours near Taylor, TX (Austin). Signal appears to form from noise into a coherent short beam with cool harmonics on the side. The long red line is my SDR artifact, sorry. I am using a 100 meter long loop antenna, SAW filter, and small (6x volt/volt) op-amp, NESDR smart v5.
I/Q Raw Recording
Audio Sample