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Thousands are monitoring police scanners during the George Floyd protests

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Re: Thousands are monitoring police scanners during the George Floyd protests

#31
post #4

How come LE in 2020 is not using encrypted communication systems such as Tetrapol? Yes I know Tetrapol is European, but you get the idea.

They are, in my area they have switched to P25 Trunked and added encryption, at least on the PD channels. The US is a big country and it takes a coordinated effort to upgrade the big city and the surrounding areas and is very expensive. The only thing open around me is Fire/Rescue.

Re: Thousands are monitoring police scanners during the George Floyd protests

#33
post #2

Hi there! I'm the owner and operator of Broadcastify, which is the platform that powers all the apps that provide police scanners and public safety communications online. I'm an active HN reader and would be glad to answer any questions folks have. It's an interesting business to be in these days...

Do you have a sense of how many precincts are encrypting their scanner comms these days?

Every year new technology drives some agencies to remove their routine general dispatch operations from public access. Some agencies really like their communications to be publically available, and some don't.

If I had to back-of-the-napkin it, I would say that 10-15% of all law enforcement general dispatch operations are encrypted full time. The vast majority in this country is still unencrypted.

Re: Thousands are monitoring police scanners during the George Floyd protests

#34

Earlier quoted context omitted.

Interesting product/service! I've been familiar with it in the past but really used it a lot over this last week - thank you for offering a free n accessible tool. When, Why and how did you get into it? Does it generate meaningful/worthwhile revenue or is to more to cover overhead? (I only noticed the occasional 30 second commercial intro) Maybe you have a lot of premium subs? Why sometimes do certain cities/counties…

My Grandmother had a police scanner that she used to listen to drama going on in her small town in Virginia. Old ladies with police scanners is still quite common. It sparked an interest and my parents got me one as a Christmas present. I spent many years in the IBM ecosystem as an technical SE, but developed an online database (RadioReference.com) in the late 90's that consolidated frequency information for all the…

Right on thank you so much for taking the time to answer my questions...love the history, glad to hear it's "wildly successful" and godspeed to you and everyone else going forward.

Re: Thousands are monitoring police scanners during the George Floyd protests

#35

With the rise of corporate censorship I don't think its wise to rely on app stores for access to police frequencies. Dedicated radios that monitor police frequencies are widely available and you don't need an amateur license to use one (since you're only listening, not transmitting). My city is on 700MHz P25 which requires a fairly pricey radio, but its been worth every penny over the past week. After listening in la…

Any specific models/manufacturers you can suggest?

I have a Uniden BCD396XT, which is a few years old and I'm not sure they make it anymore. However the second-hand market for radios is very strong and if you have an amateur radio store in your area (Ham Radio Outlet, or the like) you can go there and I've found them to be very helpful. They're likely to know the specifics of the LE frequencies in your area.

I've been thinking about upgrading to an ICOM IC-R30, but its expensive and does way more than just police scanning.

Re: Thousands are monitoring police scanners during the George Floyd protests

#36
post #4

How come LE in 2020 is not using encrypted communication systems such as Tetrapol? Yes I know Tetrapol is European, but you get the idea.

Europe and the United State government are drastically different.

Local municipalities in the United States are very independent and will settle on a a communications system that they locally want to use. Budgets and planning are allocated at those local levels, and power struggles and turf wars will result in agencies right next door to each other using different systems, just because.

Re: Thousands are monitoring police scanners during the George Floyd protests

#37
post #6
post #2

Hi there! I'm the owner and operator of Broadcastify, which is the platform that powers all the apps that provide police scanners and public safety communications online. I'm an active HN reader and would be glad to answer any questions folks have. It's an interesting business to be in these days...

Is there a way of legitimately detecting Stingrays? I understand this is the kind of situation where they are actively deployed despite all the social awareness.

I remember a few apps that you could watch the towers in your area and be alerted or warned when new ones popped up. But one app needed to be trained to remember the towers in your area.

Something like this maybe? https://f-droid.org/en/packages/info.zamojski.soft.towercoll...

Re: Thousands are monitoring police scanners during the George Floyd protests

#38
post #6
post #2

Hi there! I'm the owner and operator of Broadcastify, which is the platform that powers all the apps that provide police scanners and public safety communications online. I'm an active HN reader and would be glad to answer any questions folks have. It's an interesting business to be in these days...

Is there a way of legitimately detecting Stingrays? I understand this is the kind of situation where they are actively deployed despite all the social awareness.

University of Washington researchers are working on this, their technique has used roaming car sharing vehicles and anomaly analysis:

https://seaglass.cs.washington.edu/

Re: Thousands are monitoring police scanners during the George Floyd protests

#39

Anecdotal, but an ex-friend cop told me YEARS ago that they never use their radios for "sensitive" communications anyway, they just call each other on their cell phones so that there are no records of their conversations.

Matt Blaze has a classic talk about crypto failures by LE using radios. In short, the feds still screw it up and accidentally operate in the clear.

I've personally heard a Stingray being used for an arrest being broadcast on an open, analog channel.

https://youtu.be/re9nG81Vft8 (Can't find the original.)

Re: Thousands are monitoring police scanners during the George Floyd protests

#40

Anecdotal, but an ex-friend cop told me YEARS ago that they never use their radios for "sensitive" communications anyway, they just call each other on their cell phones so that there are no records of their conversations.

I remember, years ago, that they'd use their Mobile Data Terminals for anything "sensitive", again to get around scanner listeners.

Apparently they didn't know about MTDMon software. Which was even cooler than listening on a scanner, because you could set it to beep the PC speaker if your keywords appeared in the feed.

I assume all that is encrypted now, but it sure wasn't at the time!

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