Trans; Trflow - Advanced Electronic Applications PK-88 Operating Manual

PK-88 OPERATING MANUAL
The hex display column shows the next 16 bytes of the packet, exactly as received, in standard
hex format. The shifted ASCII column decodes the high-order seven bits of each byte as an ASCII
character code.
The ASCII column decodes the low-order seven bits of each byte as an ASCII character code.
In a standard AX.25 packet:
The call sign address field is displayed correctly in the shifted ASCII column.
A text message is displayed correctly in the ASCII column.
Non-printing characters and control characters are displayed in both ASCII fields as a period
(' . ')
You can examine the hex display field to see the contents of the SSID or extension byte and the
control bytes used by the protocol.

TRANS

TRANS is an immediate command that switches the PK-88 switch from the Command Mode to
Transparent Mode. The current state of the radio link is not affected.
Transparent Mode is primarily useful for computer communications. In Transparent Mode, 'human
interface' features such as input editing, echoing of input characters, and type-in flow control are
disabled.
⇒ Use Transparent Mode for transferring binary or other non-text files.
TRFLOW ON|OFF
Parameters: ON
OFF
If TRFLOW is ON, the type of flow control used in Transparent Mode is determined by how START
and STOP are set.
If TRFLOW is OFF, only 'hardware' flow control (CTS, RTS) is available to the computer and all
characters received by the PK-88 are transmitted as data.
If START and STOP are set to $00, the User Stop and User Start characters are disabled – hard-
ware flow control must be used by the computer.
If TRFLOW is ON, and START and STOP are set to values other than zero, software flow control is
enabled for the user's computer or terminal. The PK-88 responds to the User Start and User Stop
characters (set by START and STOP) while remaining transparent to all other characters from the
terminal.
Unless TXFLOW is also ON, only hardware flow control is available to the PK-88 to control output
from the terminal.
Mnemonic: T
Mnemonic: TRF
Software flow control for the computer or terminal can be activated in Trans-
parent Mode.
Software flow control for the computer or terminal is disabled in Transparent
Mode.
Immediate Command
Default: OFF
5 - 63
COMMAND SUMMARY
PK-88 - 138