if there was a metrofire fg patch

[Peteri Szerlagi]

Boston Mass area

if there were patches from the simplex MetroFire FG / fireground UHF
channels to the State TRS (comirs) - the patches would have to be
special non-interferring patches - right?

the patches would have to be set up such that whenever there was any
traffic on the UHF side - then no one on the TRS side could transmit
via the patch

and probably vice versa also - whenever anyone was transmitting on the
TRS side of the patch - no one could transmit on the UHF side - no -
thats not correct

the bottom line problem with patching from a repeater channel to a
simplex channel - seems to be that - the units on the repeater have an
inherent priority / superiority over the simplex units - how can we
explain this?

if there is a stuck mike on the TRS side - and the patch is hard wired
to rebroadcast ALL traffic - then the simplex channel becomes
essentially unusable - unless the patch is turned off

if there is a stuck mike on the UHF side - and the patch is hard wired
to rebroadcast all traffic - the units on the TRS side can technically
still transmit - even though they would need to "talk" over the noise
from the UHF side

maybe a better explanation is - if the patch is on - and someone
accidentally hits their xmit button on the UHF side - they dont
totally dont prevent from someone transmitting on the TRS side - if
someone accidentally hits their xmit button on the TRS side, they
throw a 100 watt signal onto the 5 watt simplex channel - there is a
major mismatch there - but the 100 watt signal is coming from a
distance (its typically not at the fire scene)

there might be a way around this - have a UHF receiver or
transportable UHF repeater brought to the incident scene - the UHF
receiver picks up the UHF simplex traffic and relays it into the TRS
via some means - this would level the playing field between the TRS
radios and the UHF radios - in a manner of speaking