Radtel RT-490 User Manual Page 11 of 29
Background light is always ON
In frequency mode, difference between TX
and RX freqs. Enter using keypad or
Customer Provided Software (CPS).
In frequency mode, turn off the TX/RX
difference
In freq mode, TX freq = RX freq
PLUS freq diff
In freq mode, TX freq = RX freq
LESS freq diff
Starts/Stop CTCSS scan. Right Arrow starts
Starts/Stop DCS scan. Right Arrow starts
Save Only Transmitted CTCSS
Photo (currently JJCC logo)
Select from list or Set custom Radio
Name using Customer Provided Software
Select from list of 1 to 15 DTMF codes.
The DTMF codes are programmed with
Customer Provided Software.
Turn Off DTMF code transmit
Press PTT to BEGIN transmit DTMF
Release PTT to END transmit DTMF
Press PTT for BOTH to begin and again to end