Weird Data Transmissions (probably a pager)

[Gem579]

Picking up a strong data transmission from my area (Gibson Indiana) at 173.3005 MHz. It is constant short bursts of a screeching sound (kind of like dialup), punctuated with a short burst of static. Need help finding what it is. It may be POCSAG but I am not sure. I have attached 2 pictures of the waterfall and 2 pictures of the spectrum analyzer, as well as a link to an audio clip.

Audio Clip:

Signal_173-300-500-MHz.wav

drive.google.com

 

[west-pac]

Did you try Googling the freq?

 

[nd5y]

It's 1200 baud AFSK data with the old standard bell modem tones. Not paging. Probably SCADA.

 

[Gem579]

It's 1200 baud AFSK data with the old standard bell modem tones. Not paging. Probably SCADA.

Thanks! I thought it might be SCADA as well, POCSAG is lower pitched.

 

[greggyp00]

 

[ecps92]

Did you try Googling the freq?

and for the OP the freq is 173.3000 when searching the FCC

It should come back to your local power provider

 

[Gem579]

and for the OP the freq is 173.3000 when searching the FCC

It should come back to your local power provider

Did that, didn't see much in the results.

 

[ecps92]

however also check IL since your county is right at the border

Callsign: KSA209 Licensee: BARTHOLOMEW COUNTY R E M C Radio Service: Industrial/Business Pool, Conventional (IG) City: COLUMBUS, IN Status: Active Grant Date: 01/05/2023 Expiration: 12/07/2032

Site: 2 Address: 801 2ND ST City: COLUMBUS, IN County: BARTHOLOMEW Coordinates: 39 12' 2.2" N, 85 54' 50.0" W

Frequency: 173.30000000

Site: 3 Area of Operation: KMRA around a Fixed Location City: COLUMBUS, IN County: BARTHOLOMEW Coordinates: 39 12' 2.2" N, 85 54' 50.0" W

Frequency: 173.30000000

Site: 4 Name: HARRISON TOWER Address: NE OF INTERSECTION OF S 475 W & W 250 S City: COLUMBUS, IN County: BARTHOLOMEW Coordinates: 39 9' 49.5" N, 85 59' 51.6" W

Frequency: 173.30000000

Callsign: WQWM411 Licensee: BICKNELL, CITY OF Radio Service: Industrial/Business Pool, Conventional (IG) City: BICKNELL, IN Status: Active Grant Date: 10/02/2015 Expiration: 10/02/2025

Site: 1 Address: 203 WASHINGTON ST City: BICKNELL, IN County: KNOX Coordinates: 38 46' 25.2" N, 87 18' 45.1" W

Frequency: 173.30000000

Site: 2 Area of Operation: KMRA around a Fixed Location City: BICKNELL, IN County: KNOX Coordinates: 38 46' 25.2" N, 87 18' 45.1" W

Frequency: 173.30000000

 

[west-pac]

Did that, didn't see much in the results.

 

[dlwtrunked]

Picking up a strong data transmission from my area (Gibson Indiana) at 173.3005 MHz. It is constant short bursts of a screeching sound (kind of like dialup), punctuated with a short burst of static. Need help finding what it is. It may be POCSAG but I am not sure. I have attached 2 pictures of the waterfall and 2 pictures of the spectrum analyzer, as well as a link to an audio clip.

Audio Clip:

Signal_173-300-500-MHz.wav

drive.google.com

Not paging. Likely metering on a water tank/tower near you.

 

[ecps92]

Not paging. Likely metering on a water tank/tower near you.

SCADA - The RadioReference Wiki

wiki.radioreference.com

 

[Gem579]

SCADA - The RadioReference Wiki

wiki.radioreference.com

Thank you for this!