New Braunfels Solid Waste 155.190

[Sanscanman]

I happened to notice the other night that I heard Data Burst at 10:30 PM. My first thought was some sort of AVL for the garbage trucks however, I did not hear it again until 10:30 AM the Following morning. So I set up my TRX-1 to monitor this channel and this is what I came up with.

https://soundcloud.com/waynefinnigan%2Fsets%2Fnb-solid-waste-data-poll

There are 8 data bursts each time this event occurs,

From the RR Comal County Wiki:

New Braunfels Alert Notification System
In early 2011 the City of New Braunfels installed 8 warning sirens, which allow the city to warn residents of impending natural disasters. Specifically, these will be mostly utilized to warn of flash flooding along the rivers (each was located to cover a portion of the rivers or creeks prone to flash flooding). 4 of the 8 units have voice broadcasting capabilities while the remainder are sirens only. The city will conduct weekly testing on Wednesdays around 12:30 pm.

Seems like they are embedding this system inside the Solid Waste channel which seems odd as this channel is very active during the day with garbage pick up.

Any thoughts?

 

[rattlerbb01]

Are the data bursts on open carrier? If so, they probably would have minimal effect on the voice traffic on the PL tone repeater.

edit: I listened to the audio samples and it sounds like the 203.5 PL is active during the data bursts if you can confirm

 

[nd5y]

There are 8 data bursts each time this event occurs,

Do they happen to have 8 outdoor warning sirens?

 

[Sanscanman]

Yep, they are indeed using 203.5 PL which I find very odd as well, and yes Tom, they have 8 sirens (psst.. that's why I posted the wiki snippet ). If you listen to the sample it appears there is a challenge and then a response in each 4-second transmission. I have the TRX-1 set up to listen and see if there is activity around 12:30 tomorrow when their weekly test is set to take place. and the 10:30 pm data poll just started now as I am posting this. They sound very much like what Guadalupe County uses for their flood warning sirens. but Guadalupe does a poll every 4 hours and doesn't use a PL.

 

[Sanscanman]

Quick update. There was no activity noted around 12:30 today. I am going to record the channel the rest of the week and see if they changed the test days to maybe Saturday as Guadalupe County does.