LOL
It was set to the siren system Freq to test turn on turn off
during repair or install.
So what FCC REG is it in violation of when you use
the Licensed Freq???
Mitch
On 04/09/2017 12:57 PM, Lewis Bergman wrote:
I don't see how that meets FCC regs.
On Sun, Apr 9, 2017, 11:59 AM Mitch Koep <[email protected]
<mailto:[email protected]>> wrote:
We used this to test the sirens....
http://www.ebay.com/itm/7W-OUTPUT-HIGH-POWER-TYT-TH-F8-VHF-Handheld-Dual-Display-FM-DTMF-2-Way-Radio-/222143191036?_trksid=p2385738.m2548.l4275
On 04/09/2017 11:40 AM, Lewis Bergman wrote:
Most I of those we installed ages ago are VHF but the only
trigger is either a 2 tone or 5/6 tone paging format. Anyone can
duplicate them with a $250 old service monitor off eBay or with a
sound card and some specs. Feed that audio into a transmitter and
it is pretty simple.
All the old service monitors had all the common formats used in rf.
On Sun, Apr 9, 2017, 10:28 AM Chuck McCown <[email protected]
<mailto:[email protected]>> wrote:
I forgot to mention, our whole system was paid for by the
feds about 20 years ago due to the nerve gas incinerator.
*From:* Chuck McCown
*Sent:* Sunday, April 09, 2017 9:24 AM
*To:* [email protected]
*Subject:* Re: [AFMUG] Were you bored this weekend Chuck ? :)
Where I live this half of the county is totally covered. Each
Wednesday at 3pm it says : “this is a test, this is a test,
this is a test of the Tooele county emergency warning
system”. Looks like 900 MHz feeding the system. Many times
I have thought about commandeering the system to announce the
return of Jesus or something.
*From:* Colin Stanners
*Sent:* Sunday, April 09, 2017 3:52 AM
*To:* [email protected]
*Subject:* Re: [AFMUG] Were you bored this weekend Chuck ? :)
If it's an old system, it's very possible there's nothing
desirable like authentication/encryption - it may just be
"turn on the sirens if you see any signal on the frequency of
155.555mhz" Anyone with some RF knowledge, a $300 SDR (HackRF
One) and a $50 amateur radio flea market "2 meter band"
amplifier could blanket a city with such a signal.
On Sun, Apr 9, 2017 at 1:15 AM, CBB - Jay Fuller
<[email protected]> wrote:
Sirens are bad right ?
Create a custom radio on a certain frequency? I am sure
these things are set off with a radio right....
https://www.usatoday.com/story/news/2017/04/08/hacker-triggers-all-156-emergency-sirens-dallas/100212412/
Sent from my Verizon 4G LTE Smartphone
--
Mitch Koep
A Better Wireless
218-851-8689 cell
--
Mitch Koep
A Better Wireless
218-851-8689 cell
