257 West Union St.
Athens, Ohio 45701
Ph: 740-593-3150
Gorman-Redlich Manufacturing Co.

EAS-1 and EAS1-CG

EAS Encoder/Decoder Setup and Operation Guide

Num. Section Description
I. EAS-1/CG Description Gives specifications andgeneral information
II. Setting up the EAS-1/CG Getting started with installation
III. The EASETUP Program ver. 1.7 Guide through the setup program on floppy disk
IV. EAS-1/CG Operating Display Explains features of the display during normal operation
V. EAS-1/CG Keypad Options Lists the functions of the keypad keys
VI. Sending an Alert Explains forwarding and originating alerts
VII. EAS-1/CG On-Screen Utility Menu Shows various options available in the menu
VIII. Using the EAS-1/CG Utility Menu Explains basic menu items and how to work with them
IX. EAS-1/CG TV/CG Setup Explains the character generator (SCG-1) setup
X. Station Setup in the EAS-1/CG Guides you through the station setup, Menu #17
XI. EAS-1/CG DTMF Telephone Interface (Optional) Explains operation of the DTMF unit

Section I:

EAS-1/CG Description

EAS-1/CG Encoder Specifications

Access Control: Access to the encoder to generate an alert is protected against unauthorized personnel generating false alerts by requiring a four-digit access code which must be entered from the front panel keypad or optional telephone interface. The four-digit code is not required if the encoder is being programmed through the DB9 RS232 PC port or when a valid incoming alert is being manually forwarded.

Audio Storage: The encoder has the capability of inserting an up to two-minute audio portion of the alert message by using a microphone or playing back up to two minutes of audio stored in the internal digital audio storage unit, as well as recording and replaying another up to one-minute audio message that is normally used for a "tune-to" message. With the inclusion of the optional telephone interface, the audio portion of the two-minute alert message can be stored in the encoder from a remote location using a telephone or similar device with a DTMF telephone keypad. The keypad can be used to play back the stored audio messages for editing prior to forwarding a complete, full-blown EAS civil emergency message. The DB9 RS232 PC port can be used to compose a data message using a 1200 baud rate. Audio may be recorded either through input 6, which also will accept an amplified studio microphone, or through the front-panel speaker.

Audio Outputs: The encoder has an adjustable balanced audio output on the rear of the unit, in one of the terminal plugs, which is 600 ohms @ +8 dbm max. The DB9 PC port is a two-way data port which can be used as a data output port (RS 232, 1200 baud). The front panel keypad is used to adjust the internal digital pots which set the output level of each of the four frequencies used to generate the FSK header and dual-tone attention signal.

Header Information: When the encoder originates a message, the date, hour and minute that are derived from the internal clock are encoded in the burst of FSK as well as the identification of the originating entity.

Other Features: The programming data and stored audio messages are non-volatile and unaffected by power interruption. The front-panel 4-line, 40-character display lets the operator know what the encoder and decoder are doing at all times. The display reports sending or receiving FSK, attention signal, voice message and EOM. The front-panel speaker simultaneously presents the same audio and if the unit is installed in a room where radio traffic is generated, a microphone switch can be wired in through the rear terminal block to mute the speaker on the EAS while the microphone is being used in the radio room.


Figure I.1: Attention Tone Specifications
FCC Specification EAS-1/CG Specification
Temperature Range 0oC to 50oC up to 95% RH -10oC to +60oC up to 95% RH
Tone Frequencies 853 Hz +/- 0.5 Hz

960 Hz +/- 0.5 Hz

853 Hz +/- 0.1 Hz

960 Hz +/- 0.1 Hz

Total Harmonic Distortion Not to exceed 5% at encoder output terminal Exceeds specifications by at least 10 dbm each tone, over temp range -10oC to +60oC
Minimum Output Level +8 dbm into 600 ohms, each audio tone +8 dbm into 600 ohms, each audio tone
Dual Tone Length Adjustable, from 8 sec. to 25 sec. Adjustable, from 8 sec. to 25 sec.
Attention Tone Indicator Visual or aural indicator of attention signal activation Visual and aural indication of attention signal activation
Supply Voltage Variation Must comply with above specification for 85% to 115% of line voltage Complies with above specification for 85% to 115% of line voltage
Operation in High RF Field Must comply with the specification for operation in an RF field of an AM, FM and TV broadcast frequency. Complies with the specification for operation in an RF field of an AM, FM and TV broadcast frequency
FSK Tone Specifications -40 dB over temperature range of 0o C to +50o C All frequency components outside the 200 to 4000 Hz band exceed -40 dB with respect to output levels of mark and space frequency and over temperature range of -10o C - +60o C

Gorman-Redlich EAS-1/CG Decoder Specifications

Audio Inputs: The EAS-1/CG decoder section provides six audio inputs which greatly exceeds the FCC specification of two audio inputs from EAS monitoring assignments. It also has a DB9 RS232 data input port which operates at 1200 baud.

Message Handling: The unit compares the three bursts of FSK and must have the same data at each position in the header in two out of the three bursts of FSK to have a valid header. If this condition is met, the unit then checks to see if the incoming message is a duplicate of one already received, or if the message was originated by the receiving unit. Duplicate messages are printed out but cannot be forwarded. If neither of these two conditions are met, it next checks to see if the incoming message has expired. If the incoming message is still within its valid time period, the unit checks to see if the event is one of the required or preselected event codes. If this condition is satisfied, the decoder next checks to see if there is one of the programmed counties in the incoming header. If all of these conditions are met, the audio (up to two minutes in length) will be stored and this message can be forwarded.

Header Storage: The EAS-1/CG can currently store twenty preselected event and originator coded combinations, exceeding the FCC's required ten, in addition to the four mandatory code combinations of tests and national activations. Firmware has been completed and is being tested to expand the preselected table and to permit additional event codes to the be entered (in the current test version, all 32 available header codes may be programmed and stored). The header codes of the last ten received valid messages are stored for comparison with the incoming valid header codes of later messages.

Incoming Messages: Valid EAS header codes that are received are converted to a text message and displayed on the 4-line, 40-character, LED backlit display. The audio message portion of an alert is heard on the front panel speaker. The EAS-1/CG also monitors each of the audio inputs and presents a visual indication of whether or not the audio is present on each channel. Program data is preserved in case of loss of power.

Other Features: The decoder has a DB9 RS232 1200-Baud data port where received messages are available for logging. The front panel keypad can be used to monitor each decoder audio input using a built-in front-panel speaker. Decoder programming is protected from unauthorized adjustments by the requirement that four-digit code be entered on the front panel keypad.

The decoder will automatically reset after two minutes if the originator of the incoming message fails to send the EOM. Only the EAN event code can override this feature. When the EAN code is received, it will automatically override any other incoming code.


Figure I.2: Decoder Attention Tone Specifications
FCC Specification EAS-1/CG Specification
Operating Temperatures 0oC to +50oC, up to 95% RH -10oC to +60oC, up to 95% RH
Decoder Frequency Response +/- 5.0 Hz bandwidth

853 Hz & 960 Hz

+/- 1.5 Hz. bandwidth

853 Hz & 960 Hz

Reset on Message Completion Manually or automatically mute receiver Automatically mutes receiver

Other Specifications

System Access Through the Front Panel

Display Screen: 4-line, 40-character LED backlit display, displaying the following information:

  • Number of audio inputs being scanned
  • From which inputs active audio is being received
  • Date: month/day/year
  • Time: hour/minute/second/time zone
  • Firmware version (20.2 most current)
  • Notification if an active message is stored
  • Length of any audio recorded for an active message
  • Operational mode: TV/CG, Cable SSC, Cable, Manual, or Automatic
  • During incoming message: The display sequentially presents messages indicating incoming header FSK, incoming attention tone (ATT), incoming audio, and incoming EOM FSK.
  • During outgoing (originated or forwarded) message: The display sequentially presents messages indicating outgoing header FSK, outgoing attention tone (ATT), outgoing audio, and outgoing EOM FSK.

Keypad: RFI- and ESD-protected, shielded, 20-key flat keypad

  • Embedded numeric keypad as additional function for included keys
  • Gives full operational capability from the front panel
  • Allows setting of levels for tone modulation, input audio levels, panel speaker audio level, attention tone duration, and other variables.

Speaker plays:

  • Incoming FSK, attention signal (ATT), audio message, and EOM tone.
  • Outgoing FSK, attention signal (ATT), audio message, and EOM tone.
  • Audio input of selected station being monitored, if desired.
  • Audio stored in the digital storage chips, if desired.

External device capability

  • Direct connection for driving a scrolling signboard (DB9 RS232).
  • Direct connection for driving a character generator (DB9 RS232).
  • Modem connection (DB9 RS232).
  • Terminals for an external circuit to mute speaker.
  • Terminals for an external momentary contact closure to send RWT.
  • Terminals for an external momentary contact closure to send RMT.
  • Terminals for an external momentary contact closure to send EOM.
  • Terminals for an external momentary contact closure to forward received header.
  • Terminals that provide a continuous contact closure during the transmission of an alert.
  • Six audio inputs, enabling six-channel scanning. Many stations use at least three inputs, for primary, secondary, and NOAA NWS.
  • One of the audio inputs is configured for an optional external audio input from a studio microphone to store the two-minute audio.
  • An additional BNC monaural output for aural monitoring in a remote location of the outgoing alert.
  • Printer port for logging (parallel printer port).
  • PC serial port for logging and programming (DB9 RS232).
  • Optional telephone jack for telephone control (requires installation of optional internal DTMF telephone interface board) .

EAS-1/CG Rear Panel Description

The rear panel of the EAS-1/CG has an array of ports of various types. On the top, from the right, are four RS232 ports:
  • COM3: Modem (male RS232/DB9)
  • COM2: Sign Board (male RS232/DB9)
  • COM1: Spare (female RS232/DB9)
  • COMPC: P.C. Port (female RS232/DB9)
EAS-1/CG Rear Panel Terminals
1-12 Audio In-Monitors 1-6 Six pairs of audio inputs are each coupled to the decoder by 600 ohm to 600 ohm isolation transformers. These six audio sources are scanned for EAS alert messages.
13-14 Audio Out 600 Ohm Selection Balanced 600 ohm continuous audio output from an operator selected monitor input channel #1 - #6.
15-16 Audio Out 8 Ohm Selection Balanced 8 ohm continuous audio output from an operator selected monitor input channel #1 - #6. This will be the same audio as on 13-14.
17-18 Audio Out 600 Ohm Alert Balanced 600 ohm audio output from the channel carrying the alert message. This output is gated on when the alert takes place.
19-22 *Control OutAlert Two contact closure outputs can be used to signal remote control equipment, automation equipment or to activate a remote bell or lamp. If one of the contact closures goes to automation, do not put any other circuits on this set of contacts. This relay energizes for 1 second when an incoming message EOM is completed.
23-24 Console Muting These terminals allow console muting of the panel speaker when the unit is installed in an on-air room
25-32 Audio IN/OUT - Program A/B Eight terminals for balanced 600 ohm stereo program audio lines. Via these inputs and outputs, the encoder interrupts the program audio to insert the alert message.
33-34*Control Out - Send Alert Contact closure which can complete the circuit for an external relay coil for a coaxial relay during the time the encoder is sending an alert signal. This will allow a low impedance (600 ohm) coaxial alert feed directly into a transmitter exciter circuit, thus bypassing all audio processing. It can also be used to energize an external relay to interrupt the program audio on an AM transmitter.
35-36*Control Out - EAS Complete One-second contact closure output to signal automation equipment that the EAS interruption is completed.
37-38 Control In - Delete Audio Momentary contact closure input for deleting the 853/960 attention signal and the audio message portion of a received alert message. The encoder will send only the FSK (frequency shift keying) header and EOM (end of message) portions. The momentary contact closure would be supplied by remote switch or remote control equipment contacts. This function only works in Broadcast mode, and is not applicable to TV/CG mode.
39-40 Control In - Send Alert Momentary contact closure input to tell encoder to send a stored alert message now.
41-42 Control In - Manual Momentary contact closure input to switch the encoder from automatic to manual control. You must wait for a 5 second delay, if you want to toggle back and forth.
43-44 Control In - EOM Momentary contact closure input to remotely send EOM FSK (end of message).
45-46 Control In - RWT Momentary contact closure input to remotely send RWT (required weekly test; FSK header code and EOM)
47-48 Control In - RMT Momentary contact closure input to remotely send RMT (required monthly test; FSK header and dual tones)
49-50 Data In/Out - RS485 Serial data option for future remote control equipment.
51-52 Spare terminals Can be used to supply battery backup power to the unit.
* Use low voltage DC circuit on these contacts with a back biased diode to kill any inductive kick from the external circuit.

Section II:

Setting up the EAS-1/EAS-1CG

  1. When installing the unit in the rack, be sure to ground it well. We recommend grounding it to the rack from one of the rear grounding screws, and then grounding the rack.

  2. We strongly recommend placing the EAS-1/CG on an uninterruptible power supply (UPS). The printer and the receivers used to monitor the National Weather Service and/or broadcast stations should also be plugged into this.

  3. When installing the printer, be sure to use an IEEE shielded parallel printer cable. Also, we strongly recommend finding a used dot-matrix printer with a normal-width capacity. In our experience, these work better than laser or inkjet printers.

  4. Input audio should always be connected to the lower-numbered input channels (terminals 1-12). However, if there is an input from the National Weather Service, it should be connected to input channel 3 (terminals 5-6). Studio microphones should be routed to input 6 (terminals 11-12), and must go through an amplifier.

  5. Once the audio inputs are connected, it's essential to set the input levels. Instructions for doing this are to be found in Section VIII, item 3.

  6. Once the program audio lines are looped through the unit, it's essential to set the modulation, using the outgoing program line. The 853 and 960 tones should be set at forty percent, while the 1560 and 2083 tones should be set at eighty percent. Instructions for doing this are to be found in Section VIII, item 2.

  7. A sign board in the "on-air" studio is a good idea if the EAS-II equipment is installed in another room. Warning messages will be scrolled in RED, watches in YELLOW, and required tests in GREEN. If you are using a sign board, Utility Menu option 11 should say "TOGGLE SIGN OFF " and if you are not using a sign board, it should say "TOGGLE SIGN ON." Pressing changes this from one to the other.

  8. When the unit operates in any mode other than MANUAL, incoming header codes targeted for one of the counties in the listening area trigger two sets of relay contacts. These close for one second upon completion of the three bursts of FSK EOM (terminals 19 & 20 and 21 & 22). This contact closure can be used to turn on a bell or light, or signal remote control or automation equipment. Some locations operate in manual twenty-four hours and do not interface with automation, but would like to have a contact closure under the above circumstances to call attention to the incoming message. If Utility Menu option 12 reads "TOGGLE ALERT OFF," the contacts will close in manual, also.

  9. If the station is an LP1 or and LP2, the required monthly test that you originate should have a valid time period of one hour. All other stations that originate an RMT should use a valid time period of 15 minutes.

  10. Be sure to go through the other sections of this manual, especially Section VIII: Using the EAS-1/CG Utility Menu. We strongly recommend going through this section, step by step, to better familiarize yourself with the system. If you need to change any programming for your location, then be sure to read Section X: Station Setup.


Section III:

Setting up the EAS-1/EAS-1CG

NOTE: The DOS EAS Setup software has been replaced by a new Windows compatible setup program.
Click here to view the instruction manual for the new software version (PDF reader required).


Section IV:

EAS-1/EAS-1CG Operating Display

Figure IV.1


	       SCAN:3ACTIVE:123      7/08/00 16:06:21EDT
	       DECODER: Scanning V 20.2
	       ENCODER: Ready 
	                                       TV/CG
	  

On the first line of the display shown in Figure IV.1, the number just to the right of SCAN: is the total number of inputs that are being scanned (here, 3 inputs), looking for the FSK preamble signal, AB AB. The digits to the right of ACTIVE: show which input channels are actively receiving broadcast signals. For example, if the source of audio connected to the third input momentarily is lost (possibly just a long pause in programming), the digit 3 will disappear, and the top line will only read SCAN:3ACTIVE:12. as shown below in Figure IV.2:

Figure IV.2


	       SCAN:3ACTIVE:12       7/08/00 16:06:21EDT
	       DECODER: Scanning V 20.2
	       ENCODER: Ready
	                                       TV/CG
	  

The first two figures show the display with the TV/CG message in the lower right-hand corner, which is the normal operating mode for the EAS-1/CG. However, the unit can operate in other modes. When the unit is in regular ("PSC") Cable mode, the front screen will show it as follows:

Figure IV.3


	        SCAN:3ACTIVE:123     7/08/00 16:06:21EDT
	        DECODER: Scanning V 20.2
	        ENCODER: Ready 
	                                      Cable
	  

When the unit is in Cable SSC ("Small-System Cable") mode, the front screen will look as shown below:

Figure IV.4


	       SCAN:3ACTIVE:123     7/08/00 16:06:21EDT 
	       DECODER: Scanning V 20.2
	       ENCODER: Ready 
	                                      Cable SSC
	  

When none of these three modes is turned on, then the screen will look like one of the two following examples, which are both referred to as Broadcast mode:

Figure IV.5


	       SCAN:3ACTIVE:123     7/08/00 16:06:21EDT
	       DECODER: Scanning V 20.2
	       ENCODER: Ready 
	                                      Automatic
	  

or

Figure IV.6


	       SCAN:3ACTIVE:123     7/08/00 16:06:21EDT
	       DECODER: Scanning V 20.2
	       ENCODER: Ready 
	                                      Manual
	  

Automatic operation means that the EAS-1/CG will automatically forward incoming messages as specified by the programming. This is an option in broadcast mode, and required when in Cable, Cable SSC, or TV/CG mode. In Broadcast mode, the unit may also be switched to Manual, where all messages must be forwarded by the operator by pressing the red <SEND STORED ALERT> key before the message valid time expires. To toggle between Manual and Automatic when in Broadcast mode, press the <6> key on the keypad, which is also the <MANUAL/AUTOMATIC> key. Whenever this key is pressed in Broadcast mode, the change either way will be logged with a time stamp, including seconds.

NOTE: When performing many keypad operations, the time clock displayed in the upper right-hand corner will freeze until the operation is complete. No other keypad operation may be performed until the clock is again running. Wait until you see the seconds counting up again before initiating any new keypad actions.

The above screens are also the normal screens shown when the printer is properly connected for logging, when the unit is logged to the PC port, or when no logging is chosen. There are only four printer states possible as shown on the display. The second is when the EAS-1/CG is logged to the printer, and the printer is connected but is not operating properly. Then a screen will be shown as below, with the PRINTER UNKNOWN ERROR message. This message is also reported if the printer is offline for any reason.

Figure IV.7


	        SCAN:3ACTIVE:123     7/08/00 16:06:21EDT
	        DECODER: Scanning V 20.2
	        ENCODER: Ready * PRINTER UNKNOWN ERROR*
	                                      Automatic
	  

The third mode is PRINTER NOT CONNECTED, which occurs when PRINTER is not selected for logging (menu item 7), or when PRINTER is selected but no cable is connected, or when there is no functioning data connection between the EAS-1/CG and the printer for some other reason.

Figure IV.8


	       SCAN:3ACTIVE:123     7/08/00 16:06:21EDT
	       DECODER: Scanning V 20.2
	       ENCODER: Ready * PRINTER NOT CONNECTED*
	                                      Automatic
	  

And the fourth mode is PRINTER OUT OF PAPER, which is self-explanatory:

Figure IV.9


	       SCAN:3ACTIVE:123     7/08/00 16:06:21EDT
	       DECODER: Scanning V 20.2
	       ENCODER: Ready * PRINTER OUT OF PAPER*
	                                      Automatic
	  


Section V:

EAS-1/EAS-1CG Keypad Options

The EAS-1/EAS-1CG keypad layout is as follows:

Figure V.1: EAS-1/EAS-1CG Keypad Layout
RWT
1
ABC
RMT
2
DEF
EOM
3
GHI
SEND
STORED
ALERT
SEND
COMPOSED
HEADER
FUNCTION

4
JKL

DELETE
AUDIO
5
MNO
MANUAL
AUTO
6
PQR
COMPOSE

HEADER

DISPLAY
COMPOSED
HEADER
MENU

7
STU

SELECT
INPUT
8
VWX
RECORD
SPEECH
9
YZ/
PLAY-
BACK
SPEECH
DISPLAY
RECEIVED
HEADER
CLEAR EXIT
0
-[]
ENTER

Each of these keys has one or more secondary functions, which are described in the following sections:

First Row

The top (first) row is colored red, and contains the keys for sending EAS messages. From left to right, these are:

<RWT>: Send Required Weekly Test: Just press this key once and a complete weekly test is automatically generated.

<RMT>: Send Required Monthly Test: Pressing this key generates the three FSK header bursts, followed by the attention tone, and then opens the channel for audio output, either from a microphone or previously recorded. When the audio message is finished, EOM must be pressed to complete the test.

<EOM>: Send End of Message: When the EOM key is pushed, three bursts of FSK for EOM are transmitted.

<SEND STORED ALERT>: Forward a received alert: Pressing the key once forwards the complete stored message.

<SEND COMPOSED HEADER>: Originate an alert: This key, when pressed, acts like the <RMT> key but sends the composed header rather than RMT. After the three FSK bursts and the attention tone, the unit again outputs audio, either from a studio mike or pre-recorded. Again, when the audio message is finished, EOM must be pressed to complete the test. See <COMPOSE HEADER>, below, for this procedure.

In broadcast mode, the operator password must be entered in order to use <RMT> and <SEND COMPOSED HEADER> from the keypad. If a remote momentary switch in the control room is used, the password is not required. In cable mode, the password is also required for <RWT>.

Second Row

<FUNCTION>: This key is used during keypad programming functions.

<DELETE AUDIO>: This option enables you to send an alert without the pre-recorded audio, by sending it either without any audio or by sending it with audio generated in your own studio. This function only works in Broadcast mode, and is not applicable to TV/CG mode.

<MANUAL/AUTOMATIC>: This key toggles between Manual and Automatic operation when in Broadcast mode. This is shown in the lower right-hand corner of the display. If the unit is in normal cable mode, then the screen reads Cable and the unit is in automatic mode. If the unit is in SSC mode, then the screen reads Cable SSC and the unit is in automatic. If the unit is in TV/CG mode, then the screen reads TV/CG and the unit is in automatic.

<COMPOSE HEADER>: This allows the operator to prepare an alert for transmission or to practice with message origination. This alert will be an originated alert, as opposed to a forwarded alert. When this key is pressed, the list of available headers appears on the display.

<DISPLAY COMPOSED HEADER>: This allows the operator to check the message that was prepared for origination. By using the <\/>, the complete message can be edited and any necessary corrections can be made prior to transmission. This entire message should also appear on the printed log when sent.

Third Row

<MENU>: This key requires the technician password for entry to the Utility Menu, and is described in the next section.

<SELECT INPUT>: This key selects the audio from one of the input channels and routes this audio to the balanced 600-ohm selected AUDIO OUT (terminals 13 & 14), as well as the 8-ohm selected audio out (terminals 15 & 16). This selected audio will also be heard on the front panel speaker.

<RECORD SPEECH>: This is for recording a voice message in the two-minute digital audio storage chips. Pressing this key automatically erases the audio currently in the two-minute audio storage.

<PLAY-BACK SPEECH>: This plays back the last recorded voice message.

<DISPLAY RECEIVED HEADER>: This allows the operator to check a received message before forwarding it. By using the <\/>, the whole received header can be read and its urgency gauged. This entire message should also have appeared on the printed log as it appears on the display.

Fourth Row

The bottom-row keys are used only in conjunction with other operations, and do not themselves initiate any operations.

<CLEAR>: This key is only used in a few instances, and will be prompted for when applicable.

<EXIT>: This key is always used for backing out of menu items and selections, reversing the selection process. It also has a few other uses for which the unit provides a prompt.

<\/>: (Down Arrow) This is shown on the keypad as a heavy black arrow, pointing down. Both this and the </\> are used for both scrolling up/down or forward/backward through lists for selecting items, and also used to increase/decrease the digital pots that control certain programmed levels.

</\>: (Up Arrow) This is shown on the keypad as a heavy black arrow, pointing up. See <\/>, above.

<ENTER>: The use of this key is similar to the corresponding key on the computer keyboard.

Additional Details on Above Functions

Entering passwords: A number of functions require entering a password. When this is so, you'll see this screen:

Figure V.3

	            ---     ENTER 4 DIGIT PASSWORD      ---

As you enter the password, black squares appear on the screen to represent the numbers. If entered incorrectly, you reach this screen:

Figure V.4

	       The password just entered is incorrect.
	       Please re-enter the password correctly.
	       PRESS EXIT to EXIT

<Delete Audio>: When you select this key, the following screen will appear:

Figure V.5

	           Select How Deleted Audio to be Sent   
	       1 - Send without audio & attention tones
	       2 - Speak from console & send manual EOM
	       EXIT - Exit without deleting audio

This function only works in Broadcast mode, and is not applicable to TV/CG mode. If you select <1>, you will send only the FSK Header and EOM tones. If you select <2>, you will send the FSK Header and the ATT tone, followed by a prompt on the display for you to feed through your audio message from the studio microphone,, after which you must press <EOM> to end the message.

<Compose Header>: When this is selected, this screen first comes up:

Figure V.6

	       ---         SELECT EVENT CODE       --- 
	       1 TORNADO WATCH
	       2 TORNADO WARNING
	       3 SEVERE THUNDERSTORM WATCH

This initial screen shows only the first three event codes. Using the <\/> to scroll down will bring up the rest of the approved event codes on the screen. Press <ENTER> when on the desired event, which will cause an arrowhead (>) to appear next to the selected event, then <EXIT>. You will come to a county selection screen, of which this is an example:

Figure V.7

	       Athens         OH   Fairfield      OH
	       Hocking        OH   Morgan         OH
	       Perry          OH   Entire State   OH

If you have more counties than will fit on one screen, simply use the <\/> to scroll down, and press <ENTER> when on the desired county selection(s). An arrowhead (>) will appear next to the selected counties. Then, pressing <EXIT>, you reach this screen:

Figure V.8

	       ---  SELECT VALID TIME, ENTER, EXIT  ---
	       >0:15    0:30    0:45    1:00    1:30
	        2:00    2:30    3:00    3:30    4:00
	        4:30    5:00    5:30    6:00

This is set to a default of fifteen minutes. If you wish to change it, use the arrows, then <ENTER>. When you <EXIT>, you are ready to send the composed header.

<Display Composed Header>: This key displays the latest composed header; use the <\/> to scroll to the bottom of the message. This function enables the operator to see if editing of the header code is necessary prior to its sending:

Figure V.9

	  ****** EAS ALERT SENT BY EAS-1/CG  ******  
	       SENT      4/18/2000 9:54:58 EDT
	       A BROADCAST STATION
	       HAS ISSUED A
	       TORNADO WARNING
	       FOR THE FOLLOWING COUNTIES:
	       Athens        OH
	       UNTIL 10:09 EDT
	       JULIAN DATE: 109 TIME: 9:54 EDT
	       ORIGINATING STATION: WOUB/FM
	       RECORDED VOICE MSG     0.0 Seconds

<Select Input>: This is used to monitor audio inputs through the front panel speaker. By using the <\/> to move the cursor and pressing the <ENTER> key, the audio on each input can be monitored on the EAS-1/CG front panel speaker. It uses this screen:

Figure V.10

	       ---       SELECT CHANNEL MENU        ---
	       ENTER TO SELECT, EXIT TO EXIT
	       >CH1       CH2       CH3      CH4
	        CH5       CH6

<Record Speech>: This allows direct recording of speech into the two-minute digital audio storage chips from the channel six input, which may either be a remote audio input or a locally-generated studio mic (through an amplifier), or directly from the front panel, using the front panel speaker as a microphone. You will see this screen:

Figure V.11

	       SCAN:3ACTIVE:123    7/08/00 16:06:21EDT
	       DECODER: Scanning V 20.2
	       ENCODER: Recording Voice Message
	                                     TV/CG

To stop recording, press <EXIT>.

<Play-Back Speech>: When playing back, this screen appears:

Figure V.12

	       SCAN:3ACTIVE:123    7/08/00 16:06:21EDT
	       DECODER: Scanning V 20.2
	       ENCODER: Playing Recorded Voice Message 
	                                     TV/CG

Pressing <EXIT> at any time aborts the playback without dumping the stored audio.

<Display Received Header>: This is similar to the display composed header, but shows the latest message received by your unit, and a typical display is as follows:

Figure V.13

	       **** EAS ALERT RECEIVED BY EAS-1/CG    ****
	       CH# 3 RECEIVED  4/18/2000  9:54:58 EDT
	       A BROADCAST STATION
	       HAS ISSUED A
	       TORNADO WARNING
	       FOR THE FOLLOWING COUNTIES:
	       Athens        OH
	       UNTIL 10:09 EDT
	       JULIAN DATE: 109 TIME: 9:54 EDT
	       ORIGINATING STATION: WOUB/FM
	       RECORDED VOICE MSG    12.5 Seconds
	       ALERT MESSAGE STORED

Again, use the <\/> to scroll down through the message. Note that the last line states ALERT MESSAGE STORED. If the alert message was not stored, you'll see one of these two messages:

Figure V.14

	       NOT STORED - DUPLICATE HEADER

or:

Figure V.15

	       NOT STORED - NOT PRESELECTED HEADER

The first indicates that the same message was received twice, so that the second time it was not stored. This happens when all parameters match: the same header, counties, valid time, and time stamp for origination (in the above example, it's 9:54). The second indicates that the event is not listed in the preselected event table or that none of the counties programmed into the unit for the viewing area are included in the header of the incoming message. This also appears if the incoming message was an RWT, but your unit is set not to forward it.


Section VI:

Sending an Alert

Originating an Alert

To originate an emergency message or test from your station, start by pressing the <COMPOSE HEADER> key on the keypad. Press the <\/> or </\> arrow to move the cursor down or up. Press the <\/> continuously to scroll through the events. Only four appear on each screen, but as you scroll down, you'll go through progressive screens until you've seen all the events. When the cursor is adjacent to the event code that you want in the header, press <ENTER> and an arrowhead (>) will appear next to your selection. Press <EXIT> to continue.

You now will see the preselected counties in your listening area. Press the<\/> or </\> arrow to move the cursor down or up. Press the <\/> continuously to scroll through the counties. Press <ENTER> to select each county desired for the alert; you may select any number of the counties listed. When each is selected, an arrowhead (>) will come on next to that county. If you wish to de-select a county, press <ENTER> again. Press the <EXIT> key to continue.

The next display will be the valid time for the event in the header code. Press the <\/> or </\>arrow to move the cursor down or up between the different valid time selections. After arriving at the time interval you want, press <ENTER>, and an arrowhead will appear. Press <EXIT> again to continue.

The display will now have returned to the normal operating mode. The encoder is now ready to send the FSK header code. Before sending the composed header, you might want to edit the message you have created. If you press the <DISPLAY COMPOSED HEADER> key and press the <\/>, you can read the message you're about to send. Press <EXIT> again to return to normal operating mode.

If you go to the console and through a momentary remote contact closure you can duplicate the "send composed header" key on the front panel keypad. Press the send composed header key and you send the FSK header and the two tone attention signal. Upon completion of the attention signal, give the audio emergency message from the console microphone. Upon completion of the emergency message send the end of message by pressing the <EOM> key. If you forget to send the EOM message, the EAS-1 will automatically send the EOM after two minutes.

If you want to send the composed header from the keypad when you press the send composed header key the display will ask you for the 4-digit code. We will ask on the order form what 4-digit code you would want to use. The printout of the setup information will show you what the 4-digit code is when the unit arrives. When you press the key for the last digit of the 4-digit code the FSK code and the two-tone attention signal will be transmitted. You must give the audio message from the console microphone and then send the EOM.

Forwarding an Alert

If you unit is set to TV/CG or Cable SSC, all alerts will automatically forward immediately. This section applies ONLY if the unit is being operated in Broadcast mode.

If in Broadcast Manual mode, then all alerts must be manually sent if you wish to forward them. In Broadcast Automatic mode, they will be sent according to the priority set for them, but you may send them manually any time within the priority time period. In fact, this is why the priority time period exists: for you to select an appropriate time to send the alert manually to minimize program interruption. The message forwards automatically at the end of the priority time ONLY if you have not already manually sent it. Of course, if the event is set to Send Now, then it will automatically forward as soon as it comes in.

Manual forwarding is very easy: Just press the <SEND STORED ALERT> key on the top row of the keypad. Any active message in the buffer will be automatically sent, with no need for a password.

If a received message will not forward when you do this, it's due to one of the following reasons:

  • The valid time has expired
  • It's a weekly test, and your unit is set to not forward weekly tests
  • Your clock has the wrong time or date
  • None of the preselected counties for the event in your unit match any of the counties in the alert.

Go to Part Two (Sections VII-XI)




Last Updated 2/23/2011 Pages by WCS © Copyright Gorman Redlich Mfg. Co.