Can You Identify The Following Frequencies?

[JASII]

One of the things that I like to do from time to time is perform a search with my radio, under computer control, and have it log activity. I will go back and check the History Log and see what sort of subaudible signalling has been used. Some of the following are analog and have a PL/CTCSS or DPL/DCS code listed. Others are digital and have a Color Code associated with them. There is even a NXDN in there with a RAN listed. I didn't include an frequencies that have no subaudible signal with them. They could be legitimate signals, using carrier squelch or they could be inter-modulation or "mixing". Since I was not personally monitoring each transmission logged, I excluded them. There are some that are logged that are only 7.5 kHz apart, like 151.9400 and 151.9475 that list the same subaudible code. It is possible, perhaps even quite likely, that it is from the same source of signal.

These were logged using an omnidirectional antenna at about 40 feet above the ground. I am located in Rosemount MN 55068.

Since some people are finding themselves at home due to COVID-2019, this might be a fun exercise to determine who is using what frequencies and subaudible signalling.

So, with that in mind, who is using the following frequencies?






150.905000MHz Color Code 1

150.935000MHz Color Code 1

151.085000MHz RAN 48

151.505000MHz CTCSS 151.4Hz

151.550000MHz DCS 047

151.760000MHz DCS 115

151.782500MHz DCS 115

151.820000MHz CTCSS 67.0Hz

151.895000MHz CTCSS 192.8Hz

151.940000MHz DCS 115

151.947500MHz DCS 115

152.367500MHz CTCSS 186.2Hz

152.442500MHz Color Code 6

152.930000MHz CTCSS 107.2Hz

152.982500MHz Color Code 7

153.072500MHz Color Code 10

153.110000MHz CTCSS 71.9Hz

153.455000MHz CTCSS 162.2Hz

153.590000MHz Color Code 5

153.612500MHz Color Code 6

153.650000MHz CTCSS 156.7Hz

153.815000MHz CTCSS 156.7Hz

153.882500MHz CTCSS 94.8Hz

154.025000MHz CTCSS 179.9Hz

154.205000MHz CTCSS 146.2Hz

154.310000MHz DCS 116

154.325000MHz CTCSS 186.2Hz

154.325000MHz CTCSS 136.5Hz

154.400000MHz CTCSS 186.2Hz

154.415000MHz CTCSS 118.8Hz

 

[ScubaJungle]

RR Database Home

The most complete database of radio communications data

www.radioreference.com

Go to the database and scroll down to "search frequency by state." Many of these are already listed.
154.324:

RR Database Home

The most complete database of radio communications data

www.radioreference.com

 

[nd5y]

These could be anything.

151.505000MHz CTCSS 151.4Hz - itinerant
151.760000MHz DCS 115 - itinerant
151.820000MHz CTCSS 67.0Hz - MURS
151.940000MHz DCS 115 - MURS

 

[Whiskey3JMC]

In addition to the RR search mentioned above, anything DMR or NXDN can be queried by frequency or by state on Digital Frequency Search. This may steer you in the right direction regarding those modes

 

[ScubaJungle]

Also, if it doesnt come up on RR, use this:

License Search - Geographic Search

and search for active licenses only, and limit to your state/county.

 

[Whiskey3JMC]

151.940000MHz DCS 115
151.947500MHz DCS 115

151.940 is a MURS channel, could be any business. The frequency that follows it most likely comes from the same source judging by the matching tone, just a +75 khz offset

 

[stmills]

150.905 and 150.935 are AAA Auto Service

 

[stmills]

154.025000MHz CTCSS 179.9Hz Polk County WI Fire
154.205000MHz CTCSS 146.2Hz Chicago County Fire
154.310000MHz DCS 116 St. Louis Park Fire
154.325000MHz CTCSS 186.2Hz St. Croix County
154.325000MHz CTCSS 136.5Hz Wright County Fire
154.400000MHz CTCSS 186.2Hz Pierce County WI Fire/ Le Sueur Fire
154.415000MHz CTCSS 118.8Hz Edina Fire

 

[JASII]

Here are a few more:

150.965000MHz Color Code 1

151.842500MHz CTCSS 79.7Hz

152.390000MHz CTCSS 127.3Hz

152.870000MHz DCS 624

152.877500MHz DCS 223

153.395000MHz CTCSS 107.2Hz

154.070000MHz CTCSS 118.8Hz

154.100000MHz CTCSS 136.5Hz

154.190000MHz CTCSS 192.8Hz

 

[stmills]

150.965 - AAA
154.0700 Bloomington Fire
154.100 Carver County Fire

 

[JASII]

Here are a few more:


155.130000MHz NAC 480h

155.130000MHz NAC B7Fh

155.535000MHz DCS 712

155.550000MHz CTCSS 179.9Hz

155.640000MHz CTCSS 131.8Hz

155.655000MHz CTCSS 186.2Hz

155.745000MHz CTCSS 186.2Hz

155.955000MHz CTCSS 186.2Hz

155.962500MHz CTCSS 79.7Hz

 

[stmills]

155.130 NAC 480 Pierce County WI Law 1
155.535 713 River Falls PD 2
155.550 179.9 Polk County WI Law 1
155.655 186.2 Pierce County WI Law 2
155.745 186.2 St. Croix WI Fire EMS Paging
155.955 186.2 Hudson WI PD 2

 

[JASII]

Some UHF. Specifically 453.0000-453.9875.


453.100000MHz RAN 32

453.400000MHz DCS 251

453.600000MHz Color Code 1

453.725000MHz Color Code 9

453.850000MHz CTCSS 136.5Hz

453.875000MHz Color Code 1 UID 712

453.900000MHz Color Code 11

453.950000MHz

 

[stmills]

453.100000MHz RAN 32 M Health Fairview - University Security
453.600000MHz Color Code 1 Apple Valley DPW
453.725000MHz Color Code 9 City of Edina