Tait t2020 User Manual

Also see for t2020: Service manual Operator's manual Application note

Contents

14 Basic OperationTransmitTimerYour radio is fitted with a transmit timer that limitsthe amount of time you can transmit continuously.If the radio gives three beeps, the transmit timer isabout to expire. You must release the PTT beforeyou can transmit again. The radio may be pro-grammed to prevent transmission for a period afterthe transmit timer has expired.What YouHear on aChannelWhat traffic you hear on a channel depends on howyour radio was programmed. Your radio can be pro-grammed so that you hear all conversations on achannel, or your user group may be segregated fromothers, using various types of signaling (CTCSS,DCS, 2-tone or 5-tone).When special signaling is active, you are not able tohear other groups talking on the current channelunless the monitor function is active (see “Monitor”on page 15). If the channel is busy, the BUSY indica-tor appears in the control head display.There are three types of muting control which mayscreen your calls: CTCSS and DCS mute, selective call mute, and RF squelch.Note: RF squelch is always programmed tooperate in your radio, but the CTCSS, DCSand selective call mutes are dependant onthe way your radio is programmed.CTCSS and DCS muteCTCSS (continuous tone controlled subaudible sig-naling) and DCS (digitally coded squelch) signalinguse subaudible tones to isolate your calls, so that