Unknown tone on MURS freq 154.600

[Dispatrick]

I picked up this tone on 154.6000MHz yesterday. It was simplex and was a very strong signal. it went on for several minutes and eventually stopped.

Anyone know what this is?

 

[TJX400]

Sounds like someone nearby is testing tone outs for paging possibly?

 

[kn4drt]

Maybe a emergency button pushed on a Baofeng, not sure if they sound the same. Walmart near me uses 154.600

 

[n3obl]

767.4 / 2334.6 is the paging tone. the alerts is 903.2 alternating with 855.5

 

[nd5y]

Maybe a emergency button pushed on a Baofeng, not sure if they sound the same.

I guess you have never heard one. They don't sound anything like that.

 

[nd5y]

There are several alarm and telemetry type products that use MURS frequencies. It could be something like that or it could be something else.

 

[iMONITOR]

There are several alarm and telemetry type products that use MURS frequencies. It could be something like that or it could be something else.

Yes, motion detectors, driveway vehicle sensors, ETC.

 

[KC3ECJ]

Here's one I picked up recently:

 

[Dispatrick]

someone else hearing it

 

[u2brent]

What Data Mode Is This?

Not on an amateur frequency, but on MURS, but maybe people here may be more familiar. What is this data mode?

forums.radioreference.com

Maybe this..

 

[N4GEX]

I've also heard this a couple of times in central NC over the last 2 weeks.

 

[nd5y]

Maybe this..

It's not GPS RTK for surveying. That has to use data at rates of up to 9600 bps not paging tones or alternating tones.

 

[Tim-B]

LOL, those alternating high-low tones in the videos sound like some kind of music you would hear in a horror movie when one of the victims is slowly making their way around the house in the dark and the killer is about to strike.

 

[drsparky]

Garmin makes dog tracking collars that use MURS frequencies. They can be noisy during hunting season.

 

[OpSec]

Garmin makes dog tracking collars that use MURS frequencies. They can be noisy during hunting season.

Yes, and they use MURS 5 almost exclusively...but they are usually just cyclic rapid data bursts that sound like squelch crashes.