What type of CTCSS/DCS decoding is there?
The BC780XLT can decode both CTCSS (PL) and DCS (DPL) sub-audible tone codes. CTCSS decoding is done using a search algorithm which, when the target frequency is active, tests roughly two tones per second to try and find a match. Since the BC780XLT supports 38 CTCSS tones, it can take about 19 seconds of signal activity to search for all tones on a target frequency. DCS decoding is done instantly. Tone codes can also be programmed into memory channels to open the squelch to hear a signal only if the programmed tone is present on the received signal. For more details, see pages 31 & 83 of the BC780XLT Operating Guide. Q:What’s Service Search? A: This feature is an operation which scans a large (typically several thousand) variety of preprogrammed frequencies. At the factory, Uniden programs the radio with a set of frequencies which are commonly used throughout the US for various agencies. The BC780XLT has the most common US frequencies programmed for the following agencies: Public Safet
