Maas AHT-28-V, User Manual

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ADVANCED FUNCTIONS
If select MSK, you can choose from 0-9, 4 digits in maximum for BOT; for EOT, you can
choose from 0-9 and A-Z, 6 characters in maximum. While select DTMF, for BOT, you
can choose from 0 to 9 and A to D, 7 characters in maximum. For EOT, you can choose
from 0-9 and A-Z and 7 characters in maximum. You can select “BOT, EOT, or BOTH,
then save to the radio.
PTT ID (Programmed by software)
This transceiver supports two optional signalings, MSK and DTMF. DTMF signaling only
supports encoding.
Set transmitting and receiving frequency in advance and then program PTT ID via
software, click in sequence: Program → Optional Features → PTT ID setting. And click
the ANI (mark √ ). You can input character in BOT and EOT.
1) PTT ID SETTING
EMERGENCY ALERT [ ] + [ ]
Under standby mode, press [ ] to enter menu setting, LCD displays
“ MENU ”; then press [ ] to turn on emergency alert function, radio
will transmit emergency ring for 20S and then receive for 10S, until you
press PTT, it will exit.
KEYPAD LOCK SETTING
Under standby mode, press [ ] for 2S to lock or unlock the keypad,
“ ” will be displayed at the top of LCD when keypad is locked.
REVERSE FREQUENCY ON/OFF
Under standby mode, press [ ] for 2S to turn on or off this function,
“ R ” will be displayed at the top of LCD when you turn on this function.
At this time, radio’s transmitting frequency is its receiving one, and its
receiving frequency is its transmitting one.
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