Due to the severe intermodulation problem experienced by our 440MHz repeater, the engineering team has determined we need to add a Continuous Tone-Coded Squelch System (CTCSS) to the repeater input. CTCSS, also knows as a Private Line (PL) tone will prevent the repeater from re-transmitting signals that do not contain this tone.
Once activated, all radios desiring to access the SPARC 440MHz repeater MUST transmit a 146.2Hz tone to activate the repeater.
Repeater tone access will be added in the near future, so program your radios now to be ready … Click for more