WHAT IS IT?
A good friend of mine sent me a message about a sound he's been getting:
"I get it daily. Steady carrier (image 1) with bleeps on higher bands. Early mornings it's not present, nor late evenings. When I speed up the waterfall (image 2) you see the main carrier does break, then the "bleep" noise fills in the blanks".
IMAGE 1
VIDEO 1
VIDEO 2
Posted on the best CB/Ham website: https://www.worldwidedx.com
Any help is appreciated. It may very be some digital mode, but I've never got into that area of ham radio yet, so I thought, "Why not ask the world?".
Replying on WorldwideDx.com is best, or you can shoot me an email as well. Just click on my name below and it'll pull up your mail client.
Thanks again, and, 73
I could only guess that this is a paging system from a nearby restaurant. Like the funny buttons you might be given at the order counter what would beep once your meal is ready. And yes, they not supposed to be at ham bands chunk, but those little buggees could be found pretty much anywhere and 10m is much more quiet than 11m ism slot. I own an remote switch like a door bell button with programmable two independent outputs and it is located at 27mhz but it is a spread spectrum transmitter and 27mhz is just an "whereabouts" indicator. The receiver is hardwired to the mains, which acts as an antenna at same go, and the receiver is..transmitting a "find me" carrier polling for the remote switch. The switch will blink the LED if the "find me" carrier is not found. Likewise the switch will get an ACK signal once the pressed button action is performed correctly. Although the receiver "find me carrier transmitter is not powerful then using the mains as an antenna is giving it an enormous range and might radiate far beyond one property. Who knows, might be a similar device here but with far less sophisticated carrier modulation?
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