6552Re: [BCD396XT] Systems With Separate Base & Mobile Channels
- Apr 9, 2012System Hold is a manually entered function. Press the HOLD button for 2
seconds and the scanner stops scanning all systems and stays on the selected
system, scanning only what is programmed into that system. Be sure to do
this while there is activity on a channel in the system.
If you want to scan just the state police LB two frequency simplex radio
system, I would recommend a second analog only scanner programmed to receive
just base and mobile frequencies with no delays.
Scanning a two frequency simplex (aka semi-duplex) system is rather hard to
do in conjunction with scanning other frequencies. A mobile only hears the
base frequency unless equipped to receive the mobile channel as well, and
the base side only hears the mobiles.
A scanner would stop on the first signal received, wait for any delay to
expire, and resume scanning. If the order of channels is: base freq, mobile
freq, freq 3, freq 4, etc.; and the scanner hears a transmission on the
mobile freq., it will have to scan through any and all other channels before
returning to the base frequency (providing that none of the other channels
are active), often resulting in missing some or all of the base
Putting it another way, the more channels you try to listen to, the less you
will actually hear.
----- Original Message -----
From: "Tony Olivero" <anthony@...>
Sent: Sunday, April 08, 2012 11:41 PM
Subject: [BCD396XT] Systems With Separate Base & Mobile Channels
> Our local state police are still using some low band channels with base
> stations on one cfrequency and mobiles on another. An LTR system I
> occasionally monitor exhibits similar behavior. Is it possible to get the
> x96XT to hold on a system for a few seconds to see if a response is heard
> another channel? I thought I saw a "system hold time" option in Freescan
> wasn't sure if this would work (it hasn't seemed to). Is there a trick to
> setting both the delay (for the channels) and the hold time (for the
> systems)? I'm guessing what's happening is System Hold says "scan for x
> seconds and move to another system," but does it also hold for that many
> seconds after a monitored channel's carrier has dropped and delay has
> Any thoughts or advice would be appreciated.
> [Non-text portions of this message have been removed]
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