Uniden BCD436HP English Owner's Manual - Page 93

ST Event Code Warning Watch Advisory Definition? SVR Severe Thunderstorm O Warning Thunderstorm SVS Severe Weather Statement O Severe WX TOA Tornado Watch O Tornado TOE 911 Telephone Outage Emergency O 911 Phone Outage TOR Tornado Warning O Tornado TRA Tropical Storm Watch O Tropical Storm TRW Tropical Storm Warning O Tropical Storm TSA Tsunami Watch O Tsunami TSW Tsunami Warning O Tsunami TXB Transmitter Backup On O TX Backup On TXF Transmitter Carrier Off O TX Carrier Off TXO Transmitter Carrier On O TX Carrier On TXP Transmitter Primary On O TX Primary On VOW Volcano Warning O Volcano WFA Wild Fire Watch O Wild Fire WFW Wild Fire Warning O Wild Fire WSA Winter Storm Watch O Winter Storm WSW Winter Storm Warning O Winter Storm **A Unrecognized Watch O Unrecognized **E Unrecognized Emergency O Unrecognized **S Unrecognized Statement O Unrecognized **W Unrecognized Warning O Unrecognized Continuous Tone Coded Squelch System (CTCSS) and Digital Coded Squelch (DCS) are two methods used to prevent interference by other radio communications. Your scanner can receive transmissions that use these codes. CTCSS and DCS systems all use some form of coded squelch. Coded squelch involves the transmission of a special code signal along with the audio of a radio transmission. A receiver with coded squelch only activates when the received signal has the correct code. This lets many users share a single frequency, and decreases interference caused by distant transmitters on the same channel. In all major metropolitan areas of the United States, every available radio channel is assigned to more than one user. CTCSS Frequencies The scanner can detect the following 50 CTCSS frequencies. 67.0Hz 69.3Hz 71.9Hz 94.8Hz 97.4Hz 100.0Hz 131.8Hz 136.5Hz 141.3Hz 171.3Hz 173.8Hz 177.3Hz 203.5Hz 206.5Hz 210.7Hz 85