APX8000
Sarcastic Member
As per NFPA Section 1221, Standard for the Installation, Maintenance, and Use of Emergency Services Communications Systems...
Fireground Communications
8.3.1.3 A separate simplex radio channel shall be provided for on-scene tactical communications.
8.3.6.5 Portable radios shall be capable of multiple channel operation to enable on scene simplex radio communications that are independent of dispatch channels.
8.3.4.1.26 Trunked system talkgroups shall not be used to fulfill the requirement for the provision of a simplex radio channel for on scene communications.
That's why Westchester County for example just recently set up their new system as such. Response/Command on a trunked talkgroup and the fireground ops on simplex analog. Rockland County is in the process of doing the same thing. It is also recommended that analog be used for FG comms rather than digital. There was just an article posted on RR about P25 digital (Phase 1) and background noise causing unintelligible comms. They are trying to get Phase 2 to fix this.
Why try to hit a repeater miles away with a 4 watt UHF portable from inside a brick building when you just need to make it to the incident commander outside and others around. What if you need help? Alot better chance of being heard on simplex.
If you want people (like us buff's) far away to hear fireground comms, do what some agencies on Long Island do. They (on scene firefighters) use a separate repeater other than dispatch/ops for fireground, but they use the repeater INPUT in simplex as their fireground. This way responding units, mutual aid and other can hear what is happening on the fireground by lstening to the repeater output, but they are all actually talking on the repeater input simplex to one another.
Fireground Communications
8.3.1.3 A separate simplex radio channel shall be provided for on-scene tactical communications.
8.3.6.5 Portable radios shall be capable of multiple channel operation to enable on scene simplex radio communications that are independent of dispatch channels.
8.3.4.1.26 Trunked system talkgroups shall not be used to fulfill the requirement for the provision of a simplex radio channel for on scene communications.
That's why Westchester County for example just recently set up their new system as such. Response/Command on a trunked talkgroup and the fireground ops on simplex analog. Rockland County is in the process of doing the same thing. It is also recommended that analog be used for FG comms rather than digital. There was just an article posted on RR about P25 digital (Phase 1) and background noise causing unintelligible comms. They are trying to get Phase 2 to fix this.
Why try to hit a repeater miles away with a 4 watt UHF portable from inside a brick building when you just need to make it to the incident commander outside and others around. What if you need help? Alot better chance of being heard on simplex.
If you want people (like us buff's) far away to hear fireground comms, do what some agencies on Long Island do. They (on scene firefighters) use a separate repeater other than dispatch/ops for fireground, but they use the repeater INPUT in simplex as their fireground. This way responding units, mutual aid and other can hear what is happening on the fireground by lstening to the repeater output, but they are all actually talking on the repeater input simplex to one another.
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