How-To: Use the control-panel

Controlpanel

The control panel includes a relatively large number of functions, including those that are unlikely to be found in a radio station, such as the position (Lat / Lon) input fields, a compass, and the heading and speed display.
But one after anonther:

1 – Radio room clock
       with green and red sectors for the silence periode

2 – Band selector switch

Bandwahl-Schalter

       Switch for selection of the frequency band. Wider bands can
       be switched by multiple clicking, e.g. 4 ranges in 8 MHz
       Band. Frequency selection in the main receiver depends on the
      
selected Band.

3 – Server control display

Server-Control

       Display for send / receive channel (WebSocket connection) and
       Connection to the database for regular broadcasts of Coast-
       stations. In the top line must always be “Server connected”, in the
       bottom line “Ready”, otherwise there is an error. In the case of an
       Error sometimes it helps to “reload” the page.

4 – Emergency receiver (500 kHz)
       The auxiliary or emergency receiver only has a frequency of 500 kHz
       and a volume control. With it, the 500 kHz can be observed in parallel if           the main receiver has just been set to a different frequency. The receiver         has its own display for the representation of the received characters.       
       This becomes visible when you click the chat button a second time. 
       Every further click changes the display between receiver #1 and #2.

Hilfsempfänger -aus  Emergency receiver off.

Hilfsempfänger -ein  Emergency receiver on.

5 – Activity and station display

Activity Display

       This display gives you an overview of the activity in the various bands.   
       Normal stations will be displayed yellow, stations with a running loop     
       green. In the small window at the bottom left of the display, the
       callsign of the sending station is displayed.
       If the main receiver is switched on, the activity display can be used to set
       the frequency by means of a mouse click on the frequency or by use of 
       the mouse wheel. The selected frequency is marked by the red needle.

6 – Display switch (chat, chart etc.)

Display-Schalter

        With the chat button you can get to the text window for entering and
        output in Morsechat. The digital nautical chart is displayed via the Chart
        button and the telegram form is called up via TTx. The transmitter     
        sidetone is switched on and off with the MUTE button. With the OFF     
        button you can leave the radio station and return to the calling page.
        With Docu there will be another register opened in the web browser     
        and the page ‘Who is online?’ is displayed. The NAV button indicates
        that the autopilot is on (Default setting at startup). When the NAV
        button is turned off, any position can be entered via the input fields for
        the position. The previously selected route is then exited. If the NAV
        button is then switched on again, the ship moves directly to the next
        position of the selected route. Directly means, directly over land too!
        The other switches are not yet assigned.

7 – Oscilloscope 

Scope-Display

         Provided that the transmitter is switched on and mode is set
         to ‘Key’, an oscilloscope is available via the scope button so that the     
         shape of the signals InSig and OutSig can be watched. To the right of
         the scope button there is a field for the Selection of the signals InSig
         and OutSig. The threshold value can be set with the slider on the far
         right.
         There is a separate page in this for operation Documentation (Link …).

8 – Input fields for the position (Lat / Lon)
         By entering new data for the position, the ship position can be changed           directly in the radio station. The values must be entered with decimal               places. The course can be adjusted with the steering compass. The
         ships speed cannot be changed here.

9 – Steering compass
         Steering compass for displaying and changing the course. (change with           the mouse wheel when the mouse pointer is on the compass or
         directly in the input field)

+ + +

How-To: Set and tune the transmitter (Coaststation)

Sender-500

ON / OFF switch
The transmitter is switched on and off with the ON / OFF switch. This also activates a connected Morse code key. The Go! button for the transmission mode in Morsechat is inactive when the transmitter is not switched on.

Frequency setting
After selecting a coast station in the “Radio station” menu, the transmitter is permanently set to the selected frequency / coast station combination. Here, for example, a coastal radio station with an operating frequency of 500 kHz was selected (picture). In contrast to the main receiver, the frequencies cannot be set here via the display.

Chat / Key switch
This is used to switch between the operating modes Morse chat and Morse key. In the ‘Key’ operating mode, the oscilloscope can also be switched on at the top of the control panel to check the InSig and OutSig signals. InSig is the input signal as HOERWACHE receives it from the web browser. OutSig is the shaped square wave signal which HOERWACHE subsequently decodes and forwards to all connected stations via the Internet.

MIC rotary knob
This is used to set the microphone level if a Morse code key is connected and ‘Key’ has been selected via the chat / key selection.
The set level (signal) must be greater than the threshold value set in the oscilloscope.

POWER rotary knob (no function!)
This can be used to increase or decrease the output a little. This may give you a slightly larger range. The program has a distance and power-dependent volume control, i.e. more distant and weaker stations are poorly received.

 

How-To: Set and tune the transmitter (Ship)

Sender-500

ON / OFF switch
The transmitter is switched on and off with the ON / OFF switch. This also activates a connected Morse code key. The Go! button for the transmission mode in Morsechat is inactive when the transmitter is not switched on.

Frequency setting
The ship’s transmitter has the approved frequencies, which can only be set using the switches for 500, 410, 425, 454, 468, 480 and 512 kHz – of course only after the ON switch has been pressed. The active switches are shown in bright green, the inactive ones in gray. In contrast to the main receiver, the frequencies cannot be set here via the display.

Chat / Key switch
This is used to switch between the operating modes Morse chat and Morse key. In the ‘Key’ operating mode, the oscilloscope can also be switched on at the top of the control panel to check the InSig and OutSig signals. InSig is the input signal as HOERWACHE receives it from the web browser. OutSig is the shaped square wave signal which HOERWACHE subsequently decodes and forwards to all connected stations via the Internet.

MIC rotary knob
This is used to set the microphone level if a Morse code key is connected and ‘Key’ has been selected via the chat / key selection.
The set level (signal) must be greater than the threshold value set in the oscilloscope.

POWER rotary knob (no function!)
This can be used to increase or decrease the output a little. This may give you a slightly larger range. The program has a distance and power-dependent volume control, i.e. more distant and weaker stations are poorly received.