Blackbox Seal series, User Manual

Page: 19 / 28

DTMF (PTT ID/ANI)
You can enter a DTMF code (up to 8 digits, consisted with 1234567890ABCD*#) in the “PTT ID” item in the
“Optional Feature” menu. You can also set the code to be sent at the “Begin of Tx”, “End of Tx” and/or as “Side
Tone”. Check the box to enable the function and uncheck the box to disable the fuction.
. These two items are not chosen in default setting.
You can edit the DTMF code setting in the “DTMF” item in the “Optional Feature” menu.
DTMF Speed (digit/s): Setting Range is 4-15. Default is 6.
First Digit Time (ms): Setting Range is 0~100ms. Default is 0ms.
First Digit Delay (ms): Setting Range is 100~1000ms. Default is 100ms.
Lock Check
When this Function is set as “Check”, the radio will sound a continuous “Beep” when the PLL overclocks or is
unable to work normally. When this item is set as “Off”, the radio will not make lock check of PLL.
Busy Channel Lock
This function prevents the radios from transmitting while another radio is transmitting on the same frequency or on
the same frequency with the same CTCSS/CDCSS tone. Pressing (PTT) key while the channel is in use, the radio
will generate alert tone and transmission is prohibited. Release (PTT) key to stop the alert tone. When channel is
not in use, press (PTT) key again and transmission is enabled.
1. Using the programming software in the “Channel Information” menu you can set this function in the “Busy
Lock” column of each channel separately.
“OFF”: the function is disabled.
“Carrier”: the radio will not transmit if signal on the current frequency is being received.
“QT/DQT the radio will not transmit if signal on the current frequency with the same CTCSS/CDCSS tone is being
received.
18 www.blackboxradios.com