April 24, 2010
Just thinking out loud
If a portable radio gets into a dead spot, they will automatically
switch to a MO3 freq.
How how how - you ask?
The portable radio is duplex - it can hear itself coming back thru the
repeater (FB2) system. When the portable hears itself sounding crappy
into the FB2, it switches to a MO3 freq. The MO3 boosts the signal
from the portables into the FB2. (hopefully)
Advantages over current systems - fewer MO3 freqs required - more
scanning capability for portables (they usually do the normal scanning
thing - they might lose the scanning when they go to MO3 mode, but
this will be relatively rare)
One big question - portables can usually hear the FB2 - right? The
problem is usually from portable to FB2 - not - FB2 to portable.
Right?
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Oct 13 2013 - adding a little info
This is the scheme that I was envisioning -
FB2 - 460.60 R - 465.60 input
MO3 - 453.05 out / TX - 458.05 input
Infrastructure - receives via 465.60 and 453.05
A portable radio would be programmed to usually
transmit on 465.60 and normally receive on 460.60.
If the portable got into a deadspot, the portable
would then transmit on 458.05. The MO3 would receive
the portable via 458.05, and retransmit the signal
to the infrastructure via 453.05.
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March 31 2014 - this aint such a bad idea