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used to restrict access to the repeater or receiver, or reduce
interference where several stations with output frequencies
in close proximity of each other make it difficult to hear the
conversation you are interested in. With DCS squelching,
you can eliminate the possibility of hearing unwanted
conversations by selecting one of the 104 standard data
burst subaudible tones. You will only hear those
transmissions that have been programmed on specific
frequencies with the specific subaudible tone that you have
selected.
Enter Lock - This is the term used for locking the keypad.
This prevents accidental re-programming of channels and
talkgroups entered into memory. The default setting is OFF.
When ENTER LOCK is enabled, the following functions will
be disabled:
• Enter or modify the Memory Channel frequency
• Enter or modify the Tone information
• Enter or modify the Trunking ID. ( this can be modified
through the menu screen.)
I-Call - Most communications within a trunked system are
group calls where one unit (such as a dispatcher)
communicates with all the units within her group (all the
patrol vehicles on the east side of town, for example).
The units within this group comprise what is typically known
as a talkgroup. There are some communications which are
direct unit-to-unit conversations where one individual
converses with another individual. The call is initiated by a
radio and is directed to another single radio. Within the
system, no one outside of these two users hears the
conversation. This call is referred to as I-Call.
Key Beep - This is another term for the tone you hear as a
keypad acknowledgement beep. The default setting is on.
If you have turned the Key Beep off, you now have a silent
keypad. You will not hear a tone each time you press a key.
PC Control - This term is associated with the ability to
program frequencies and other useful information via a
computer by means of third party software. You can change
the transfer speed on the scanner needed to be compatible
with your PC. (See page 73)
Scan List - When you designate a bank to be a trunking
bank, your scanner sets up 10 Scan Lists, which are simply
list of your favorite IDs. Each list can contain up to 10 IDs,
so you can store a total of 100 IDs for each trunk bank.
These lists are designed to help you organize the trunking
system users into categories.
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