Unknown Pulsing Signal
 | |
|---|---|
| Frequencies | 149.5 Hz |
| Frequency Range | 149 Hz - 149 Hz |
| Mode | WFM |
| Modulation | QAM? |
| ACF | — |
| Bandwidth | 150 MHz |
| Location | North Potomac, MD, USA |
| Short Description | An overpowering signal at 149.5mhz in North Potomac, Maryland, USA |
| I/Q Raw Recording | — |
| Audio Sample | |
Description[edit]
An overpowering signal at 149.5mhz of varying bandwidth, i believe this comes from a small governmental/utility looking building with a gated road and a mast with a j pole looking antenna if i remember right the building does not appear to have any sensors on it but it is right behind a large government owned trench we use to prevent flooding
I plan to upload images of the building when i get a chance to
I currently use a passive filter to remove this signal that creates lots of reflections and have always been curious what it was or how to decode it!
Antenna[edit]
137.5MHZ QFH as captured but just as powerful on a discone, FMFrequency Modulation antenna, even a tuned 780mhz antenna (its just very strong)
IQQuadrature signals form the basis of complex RF signal modulation and demodulation, both in hardware and in software, as well as in complex signal analysis.[edit]
You can get the IQQuadrature signals form the basis of complex RF signal modulation and demodulation, both in hardware and in software, as well as in complex signal analysis. zipped from here [1] (it's too large to submit here)
