-=> On 03-18-98  13:57, Russ Wuertz said to Michael Warner,<=-
-=>"About VSWR - VOLTAGE STANDI...,"<=-
 
Hi, Russ;
 
 RW> If you wouldn't mind tell me/us.  What is trunking?  I see
 RW> that term  used.   Scanners follow trunked conversations.
 
Some do, most don't.  What little I understand about trunking goes
something like this:  There are a number of channels shared by different
services, (ie: police, sheriff, fire, ambulance, etc).  There is a single
control channel, (digital), which tells the different systems which
frequency to use for each transmission.  Thus, an exchange between two
stations which lasts for 5 transmissions might use 5 different
frequencies.  This skipping around frequencies gives a degree of security
because most scanners cannot follow it - the same frequency might be
carrying parts of several conversation, one right after the other.  This
frequency-hopping also allows better utilization of frequencies in a busy
area, though when things do get busy, a particular user might have to
wait a couple of seconds to transmit until a frequency becomes clear.
 
 RW> I am not debating for one minute that Radio Stations are not
 RW> granted a  license to do what they are now doing.  I got an application
 RW> for a commercial  FM TV/RADIO station in just 2 days from the FCC.
 
You got the application or the license in 2 days?  It's easy to get an
application, however there is a TON of paperwork to submitting the
application and receiving a license!
 
 RW> There is absolutly no debate that Radio and TV networks are
 RW> allowed in  the United States.   
 
 RW> Why are trunked conversations necessary?  
 
I believe I answered this above: Security and frequency utilization.
 
73 DE KB9QPM
   Ivy
 
 
 
... "Hailing frequencies are open..."
 
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