Radio Shack 20-197 Scanner User Manual


 
76
Advanced Settings
77
Advanced Settings
The menus for each type of object include various settings for LED,
Backlight and Alarm. You can use these settings to design custom
visual and/or audible alarms that are triggered when activity is
detected on the specified Scannable Object.
Notes:
The Alert LED utilizes a special tri-color Light Emitting Diode
module that mixes light from red, green and blue LED elements
to produce thousands of different colors. Eight pre-defined color
settings are available for use in object menus. LED COLOR: 0 is
normally used for “all colors off” or no Alert LED display.
Slight variations to LED colors are a normal part of the
manufacturing process. You may notice these variations when
using the White LED color setting (LED COLOR: 7), or when
comparing one PRO-197 to another. You can compensate for these
slight variations by fine-tuning the Red/Green/Blue (RGB) LED
settings for each color. See the COLOR settings in the GLOB menu
in “Appendix B: Detailed Menu Reference: GLOB Menu” on page 96.
To set the Audible Alarm and Alert LED:
In any object menu:
1. Press q to scroll to any of the following settings.
LED Mode: Solid or Flash controls whether the LED remains on
solid or flashes when the object is active.
LED Color: 0-7 sets the color of the LED. By default, color 0
is used for LED off. You can change the preprogrammed LED
colors in the Global Settings menu.
Latch LED Keeps the LED on after activity on the object is
finished. This is useful when you need to know if an object was
active while you were away from the scanner.
Backlight: Off, On, Flash controls whether the backlight
remains off, comes on solid or flashes when the object is active.
Alarm: None, Chirp, Hi-Lo, Alert, Ring, 2-Chirp, Fast Hi-Lo,
DTMF # are used to set audible alarms that play each time
activity is found on the object.
2. Press t or u to select the desired option.
3. When finished, press SAVE softkey to save your changes to the
radio’s configuration memory.
Multi-Site Mode on Networked Systems
Some Motorola and P25 systems include a large number of sites
that are networked together to provide radio coverage to a large
geographical area. These types of trunked radio systems are more
commonly used for large statewide systems, and for some systems
that are used in large, rural counties.
As a system user moves around, or “roams,” in the coverage area of
the network, their radio will automatically find and use the nearest
tower site.
Each tower site includes a number of channels. One of
these channels is used for control channel data, and the remaining
channels are used for voice traffic. As a user moves away from the
coverage of one site, the radio will search other control channel
frequencies for a better site to use.
Multi-site can be enabled by editing the trunking system (TSYS)
parameters for a Motorola or P25 system. Multi-site can be set to Off,
Stat (Stationary) or Roam. By default, Multi-site is set to Off.
The ROAM setting is ideal for those times when you are driving
around in the service area of a networked trunked radio system, as it
allows the radio to find and use the best tower sites as you move in
and out of the coverage footprints of different sites.
The STAT (stationary) setting is ideal for those times when you are
not moving and are within range of more than one tower site, as it
will allow you to monitor traffic from any tower that you are within
range of.