User's Manual

Pacific Crest Corporation ADL Access User Guide – Dealer Version Page 18 of 28
Note: the Forward Error Correction option is grayed out when using Trimtalk
protocol, which does not support Forward Error Correction. To select the protocol
type, click the Serial Interface screen (see below).
k. Advanced Settings
i. Squelch off
Some ADL radio users perform tests that require communication with the
radio while its transmitter/receiver is turned off. By turning Squelch off, the
radio’s transmitter/receiver is turned off.
ii. Scramble Control
This is a low-level security technique that will scramble your data (i.e.
encode it) prior to transmission and decode it after reception. This will
prevent nearby non-authorized radios from reading your transmitted data.
Scramble Control works only with the Transparent (EOT and EOC) and
Packet Switched protocols selected on the Serial Interface screen (see
below). Only Pacific Crest PDL and ADL radios can read/write the
Transparent (EOT and EOC) and Packet Switched protocols and all PDL
and ADL radios with Scramble Control selected will automatically decode
the received data.
For security purposes, we recommend leaving the Scramble Control field
checked at all times. If you select a protocol type other than Transparent
(EOT and EOC) and Packet Switched, Scrambling Control will
automatically be disabled (though the box will remain checked).
However, if some of the radios in your system are non-Pacific Crest radios,
you may need to turn Scramble Control off.
iii. Automatic turn off
This allows the radio to turn off automatically when the power level in the
battery falls below a user-specific level.
L. Serial Interface Screen
The Serial Interface screen allows you to configure the serial interface between the
ADL radio and external devices such as a PC running ADL Access, a GPS receiver or