Moffett Field EDACS change

[trooperdude]

In engineering wideband vs narrowband frequencies you can normally count on a 3-4 db reduction in signal level with the narrowband signal.

And isn't additional antenna down-tilt now mandated to reduce the signal footprint as well ?

 

[P-3_Radio_Guy]

And isn't additional antenna down-tilt now mandated to reduce the signal footprint as well ?

Not necessarily. Down tilt is used mainly for two things.

1) On high level sites it's used to reduce the range to radio horizon. There are still some "Old Timers" who believe that a 1kW transmitter on a 4, 000 foot mountain top is the way to go. I digress.

2) to protect someone behind you. I'm working on a system right now that uses down tilt to protect a co-channel user behind the coverage area.


Downtilt is not mandated. It's used in system design to customize coverage.

EdT

 

[mikeh]

all of the tlak group are the same as before

all of the tlak group are the same as before

 

[b52hbuff]

all of the tlak group are the same as before

Great to see you're alive Mike. I would say that 'many' of the talk groups are the same as before. I have verified that there are some differences. Maybe those are only temporary, but they are what I am currently monitoring...