E.O.M (End Of Message) Function

The function of E.O.M detection is working when the radio is set in VOICE alert mode (i.e. 'ALERT ENABLE' and 'VOICE' icons appears on the LCD display, for setting this up, please refer to Owner's Manual or programming guide in ALERT MODE set up, Menu Page P4 selection).

General Operation:

The alert radio is working in two states, with either 1.) speaker mute (refers to Standby  Mode), or 2). voice on the speaker (refers to Radio-On Mode, either in WX band or AM/FM band). When the radio is set in VOICE alert mode and after Alert Receiving,  the radio will activate siren for about 8 seconds (if siren volume is properly set and the receiving event has not been blocked out), then voice alert message broadcast for certain time period as it should, then E.O.M detection (a short while after the E.O.M tone bursts completion) and finally return to the previous state either in Standby  Mode or Radio-On Mode, depending on the the state immediately before Alert Receiving.

Note:

1. Radio-On Mode (voice on speaker) refers to the broadcast in either weather (WX) band (one of the 7 channels) or AM/FM band station if the radio is Reecom model R-1650.

2. E.O.M detection: a short while after the E.O.M tone bursts receiving and confirmed by the radio.

3. Alert Receiving refers to the latest alert received if multiple alerts issued from NWS (National Weather Service).

The examples below elaborate the E.O.M function and the operation of the radio.

Example 1: Before Alert Receiving, the radio was in Standby Mode (i.e. no voice on the speaker and no key is pressed)

Standby Mode (speaker mute).....ALERT RECEIVING......, then siren, then alert message broadcast (becomes Radio-On Mode in WX band), then EOM detection.....then returns to the Standby Mode (before Alert Receiving) operation.

Example 2: Before alert receiving, the radio was in Radio-On Mode (voice on the speaker).

Radio-On Mode (voice on speaker).....ALERT RECEIVING......, then siren, then alert message broadcast (becomes Radio-On Mode in WX Band), then EOM detection......then resumes to the Radio-On Mode (before Alert Receiving) operation.

Practically, this situation may usually happen for Reecom model R-1650 in that people was listening to AM/FM radio and suddenly received NWS alert, the radio then switched to give siren and then voice broadcast in WX band. After the EOM detection, the radio finally switches back to continue on AM/FM broadcast (the previous state before Alert Receiving).

Another practical application is that when the radio (either model: R-1630 or R-1650) is under the operation of streaming NOAA weather radio to Weather Underground, the audio streaming operation will NOT be discontinued or reset after receiving alerts and / or weekly tests, and after the EOM detection, the radio will be continuing on streaming NOAA audio to Weather Underground, the previous operation state. This is the unique EOM feature offered since year 2006.

The above examples demonstrate the E.O.M function and operation consistantly...... whether it is a single alert receiving or multiple alert receiving. The Alert Receiving in above examples is referred to the very last one if multiple alerts received. The E.O.M function will not always bring the radio back to Standby mode, depending on the radio state immediately before the very last Alert Receiving.

Let's take a special case for example although it would happen very rarely. Suppose that the radio was initially in Standby Mode (speaker mute), then Alert Receiving, then siren, then voice message broadcast (the radio now is in Radio-On Mode in WX band), then EOM tone bursts sending out completely from NWS but the radio not finally confirmed yet and therefore it is still in Radio-On Mode (voice still there), then immediately (perhaps within couple seconds) after the last EOM tone burst completion, another new alert (2nd alert) transmitted out from NWS, the radio is now responding to the 2nd alert in Radio-On Mode (the state before the 2nd Alert Receiving), then 2nd siren, then 2nd voice broadcast in WX band, then EOM tone bursts complete, then no further alert from NWS. The radio finally continues on Radio-On Mode (speaker voice in WX band) since it was in Radio-On Mode before the 2nd Alert Receiving (back to back transmissions from NWS). Now, the choice is open for the user to either stop the radio manually or continue to listen to the broadcast (the two consecutive alerts could be very crucial and raise attentions to the public, perhaps the weather is changing drastically, or civil emergencies needs to alert). This is the case that some people refer to 'back to back alerts'.