Finding old frequencies

[Brettame5]

Is there a way to look back on the history of a radio reference page? Like find old frequencies?

 

[nd5y]

How old?
Look at Wayback Machine but I don't know if it collects RRdb pages.
If you need old expired/canceled FCC licenses use ULS License Archive - Archive License Search.

 

[GTR8000]

Not directly though the RRDB, no.

 

[AF1UD]

What I have found is good is that sometimes people post old freqs on the RR forums. The posts go back at least 10 years and have helped me find things that otherwise are hard to find through the FCC ULS.

 

[Whiskey3JMC]

How old?
Look at Wayback Machine but I don't know if it collects RRdb pages.

It sure does. Here's a snapshot from 2017 of my county's now defunct SmartZone system

 

[seagravebuff60]

It sure does. Here's a snapshot from 2017 of my county's now defunct SmartZone system

While yes, the Wayback machine does capture DB pages. It doesn't capture absolutely 100% of Everything. In my experience, It's a bit of a hit or miss depending on the page.

 

[mwjones]

While yes, the Wayback machine does capture DB pages. It doesn't capture absolutely 100% of Everything. In my experience, It's a bit of a hit or miss depending on the page.

Trunked systems are archived right here on the site - go to the State page (not the County page), click on the Blue Menu button at the top right and select "Trunked Systems"



Scroll to the bottom and click on "Depreciated Systems". From there you will see a list of all of the radio systems that are no longer active in your state. You can then open the individual system just like you can from the County page.

Here, for example is the system that @Whiskey3JMC shared a link to:

Montgomery County PA Trunking System, Various, Pennsylvania

Montgomery County PA Trunking System Profile

www.radioreference.com

Non-trunked frequencies are not archived, so your only hope would be to search the FCC database for expired licenses, as was previously mentioned.

 

[GTR8000]

Trunked systems are archived right here on the site

Yes...and also, maybe.

Systems that are no longer active are set to deprecated status, true...however quite often they are incomplete. What I mean by that is as system are slowly being shut down or migration to a new system has begun, we often remove sites and talkgroups that are no longer valid. The end result might well result in the skeleton of what was once a much larger system in the RRDB.

The New Jersey State Police Type II system, for example, took over a year to finally shut down. In order to prevent users from downloading sites and talkgroups that were no longer active on that system, sites, frequencies, and talkgroups were removed bit by bit over that year or so. The system you see in the deprecated section now is not an accurate representation of how large the system once was.

 

[Whiskey3JMC]

Trunked systems are archived right here on the site - go to the State page (not the County page), click on the Blue Menu button at the top right and select "Trunked Systems"

Yes but the OP was inquiring about historical data. A trunked system will only show up on the report if it is still in service (or otherwise not marked for deprecation in the RRDB)

 

[JamesWest]

LAPD Tac 1 154.83 Mhz. Same Tac 1 as Adam 12, 1968. Is that old enough to you? 555