SCS PTC-IIex, Manual

Page: 134 / 220

9 Packet-Radio
Sets the beacon interval in seconds. With the default setting 900, the beacon transmits
every 15 minutes, if position data is available and the “global MYcall” is set on the
virtual channel 0.
Parameter 0 activates the speed dependant automatic mode: The interval is then
calculated by the formula: Interval [sec] = 1800/GPS speed (knots). With speeds above
180 knots the interval is limited to 10 seconds. With speeds below 1 knots the interval is
limited to a maximum of 1800 seconds.
The automatic can only work properly when the speed is contained in the GPS
datastream, which means that RMC data must be available from the connected GPS
receiver. If speed data is available the interval in automatic mode is set to 900 seconds.
With “FIX”-Position (Aprs 2, see
9.6.1 ) and automatic timer, the firmware sets the
interval independent of the speed data from the GPS receiver to 1800 seconds.
9.6.2 Baud
Default setting: 1200
Parameter: X Baud rate for the radio link.
Setting / checking the radio link baudrate.
Without a parameter, the
Baud
command shows the currently set baudrate. If a valid
baudrate is given as a parameter the DSP is programmed respectively. Valid values are:
R300, R600, 300, 1200, 9600 and 19200 baud. For 9600 and 19200 baud operation a
suitable transceiver is necessary.
With a value of 300 additionally the tuning display is activated (refer to 9.4 page 115 ).
9.6.3 CBell
Default setting: ON
Parameter: OFF Connect bell off.
ON Connect bell on.
Turns the connect bell on, or off. If the connect bell is turned on, then every connect is
signaled with an acoustic signal, and, additionally, the PTC-IIex sends a bell character
(<BEL>, ASCII 7) to the terminal.
9.6.4 CHeck
Default setting: 300,000
Parameter: X 0... 3,000,000, time in milliseconds.
The
CHeck
command sets the T3 or link activity timer. If nothing is heard from the
partner station during the time T3, then the link status is queried.
120