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Once you have concluded your conversation, you may break the link by typing the [Ctrl-C][D] di-
rective. This will send the proper QRT frame to the other station and return your KAM Plus to G-
TOR Standby mode. Alternatively you may use the [Ctrl-C][X] directive which will also break the
link and return you to the cmd: prompt, thus leaving the G-TOR mode.
Speed changes
The HF Val light on the front of the KAM Plus will indicate the speed of the G-TOR signal you are
receiving or transmitting. When lit the G-TOR signal is 300 baud, when flashing 200 baud, and
when OFF 100 baud.
The baud rate is automatically selected based on the quality of the link between the two stations.
A link will begin at 100 baud. If the receiving station then detects a number of correctly received
frames (set by GTUP) it will request a speed change to 300 baud. When operating at 300 baud or
200 baud the receiving station will request a lower speed when it receives a number of incorrect
frames in a row (set by GTDOWN).
While you are linked to another station, the receiving station (IRS) controls the speed of the link.
If you are the IRS, you can force the other station to send at 100 baud by using the [Ctrl-C][1] di-
rective. The KAM Plus will then send the speed change command to the other unit (if needed) to
change to 100 baud, Once the change occurs, your KAM Plus will not direct the other station to
speed up again until a changeover has occurred or you set your KAM Plus back to auto-speed with
the [Ctrl-C][G] directive. If the change fails to occur for any reason, the KAM Plus will revert to the
speed it was operating at prior to the [Ctrl-C][1] directive.
If you are the IRS and wish to speed up, you can use the [Ctrl-C][2] directive to switch to 200
baud, or the [Ctrl-C][3] directive to switch to 300 baud. The KAM Plus will then send the proper
speed change command to the other unit, and if successful, your KAM Plus will not request the
other unit to slow down even if the band conditions change unless you set the KAM Plus back to
auto-speed with the [Ctrl-C][0] directive. We strongly recommend that you leave your KAM Plus in
the normal mode, which is the automatic baud rate selection.
If you have selected a forced speed, you can return the KAM Plus to automatic speed selection by
using the [Ctrl-C][0] directive.
G-TOR Mailbox
Your KAM Plus allows access to its PBBS (mailbox) using G-TOR mode. To enable a user to access
the PBBS on G-TOR, you must set the ARQBBS command ON and place your KAM Plus in the G-
TOR Standby Mode.
If you link to another station who is using a KAM Plus, you will normally communicate with the
operator at the other end. If that station has the ARQBBS command ON, you will automatically be
connected to his PBBS and will receive the mailbox prompt.
Formatting Data
When operating G-TOR, several of the KAM Plus commands, including the following, will apply in
formatting your transmitted data.
CRADD adds a CR after every CR you send from the terminal
LFADD adds a LF after every CR you send from the terminal
CRSUP suppresses every OTHER consecutive CR from the TNC
LFSUP suppresses all LF characters from the TNC
You should also remember, that any special characters defined in the KAM Plus (DISP C) must be
"passed" in order to transmit them from a standard terminal program.
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