Last Call for Roswell/McDonough Firefighter John Kevin Cash

Status
Not open for further replies.

MTS2000des

5B2_BEE00 Czar
Joined
Jul 12, 2008
Messages
5,235
Location
Cobb County, GA Stadium Crime Zone
This January, Roswell firefighter was found deceased after working a 24 hour shift, in the fire station.

Firefighter cash also worked for McDonough Fire Department since 2001. The request to create a patch between two geographically disparate systems came in to the Fulton county radio team, to see if we could assist in honoring this hero by ensuring his last call could be heard in real time, over both the NFRRSA radio network, and Henry county radio network, as Firefighter Cash was laid to rest this past Tuesday afternoon.

Seeing the opportunity to not only honor a fallen brother, but to solve a technical challenge, here is how we made this happen. Roswell has an ISSI connection to our radio system core, and thus, countywide coverage is possible allowing us to get native coverage to the border of the Henry county. So, we console patched their fire dispatch to our 911 hailing talkgroup via the ISSI connection. This provided the best possible audio as all is in the digital domain. The challenge was how do we get Henry county onto the field? As they currently do not have an ISSI connection available, we chose to utilize the ICRI 4 port 2 talk path portable tactical gateways which we at Fulton have on our radio team vehicles to create a tactical patch using a Henry county subscriber radio.

On Monday, members from the Fulton radio team, and radio systems manager, traveled to Henry county to do coverage testing and to obtain an XL-200p subscriber to connect to our gateway. Henry County Fire and Emergency Services provided us with a Harris XL-200p configured with Harris BeOn capability. Harris BeOn utilizes LTE to augment LMR coverage and seamlessly switch between LMR and LTE. This made our job of creating a tactical patch easier as we didn't have to "worry" about finding a "sweet spot" where the Fulton radio system and Henry radio system had good coverage.

The patch was then setup in a good area of RF coverage for the Fulton system, and tests were conducted on our 911 Hailing talkgroup and good audio reports obtained from the Roswell 911 center, Fulton 911 center, and Henry county.

Tuesday afternoon, our radio manager setup the patch again and Firefighter Cash last call went out as he was laid to rest. A labor of love paid off, and 911 Director Melissa Alterio's voice was heard loud and clear across three radio systems in two geographically separated counties. It meant everything to the family and those who served with John Kevin Cash that this take place, and we were all honored to assist in making it happen. Lots of little parts and pieces had to connect but they all did, and different vendors' equipment all played nicely together, most importantly the people all came together to honor a fallen hero. RIP Firefighter Cash, we have it from here sir.

 

RRR

OFFLINE
Premium Subscriber
Joined
Dec 6, 2005
Messages
1,970
Location
USA
How does the BeOn app get around encryption?
 

MTS2000des

5B2_BEE00 Czar
Joined
Jul 12, 2008
Messages
5,235
Location
Cobb County, GA Stadium Crime Zone
How does the BeOn app get around encryption?
It doesn't "get around" encryption, it fully supports the AES-256 P25 packets, it just routs them to the app via a BeOn server in addition to piping the encrypted voice traffic to an LMR base radio. P25 encryption is maintained end to end this way. Of course, in the case of Tuesday's exercise, the decoded and unencrypted audio is the only way to connect an audio based tactical gateway, and the audio patched to clear mode talkgroups/channels is just that: clear (decrypted by connected subscriber) audio.
 

RRR

OFFLINE
Premium Subscriber
Joined
Dec 6, 2005
Messages
1,970
Location
USA
Interesting.

I have heard of the "BeOn" Harris app, but didn't know how it worked, if it was solely computer based, or if it actually monitored a radio system through a remote radio.
 

MTS2000des

5B2_BEE00 Czar
Joined
Jul 12, 2008
Messages
5,235
Location
Cobb County, GA Stadium Crime Zone
BeOn is integrated into the Harris VIDA core, it's a service that runs along the call processing subsystem. It routes P25 traffic out via LTE/WiFi to a CEN so it can be received by a device running the app on mobile devices and their subscriber radios. On a Harris radio with BeON, the radio can automatically switch to LTE/WiFi when it loses LMR coverage.
Motorola has the same functionality with the APX NEXT and their SmartConnect system for Astro25 networks.
 
  • Like
Reactions: RRR

KK4JUG

Member
Premium Subscriber
Joined
Dec 13, 2014
Messages
4,261
Location
GA
When you guys go off the topic, you do it big time. Out of respect for Firefighter Cash, I believe I would have started another thread.
 
  • Sad
Reactions: RRR
Status
Not open for further replies.
Top