Specifications

When another station digipeats via the callsign in MYGATE, your
PK-900 will Gateway between Radio Port 1 and Radio Port 2. If you
provide this feature to users in your area, you may want to BEACON a
message on both ports informing users that your gateway is available.
At this time however, unattended operation below 30 MHz is not legal
for US amateurs unless they hold a Special Temporary Authorization
(STA) from the FCC. This restriction may someday change, but until
then US amateurs must always have control of their HF transmitters
when an automatic device such as the PK-900 Gateway is in use.
4.9.3 Sending 8-bit Data in Converse Mode
Sometimes you may need to send a file that contains some 8-bit data,
but not need all the features of the TRANSPARENT mode. In this case,
you may find turning the command 8BITCONV ON is all that is needed.
4.9.4 The Packet QRA Feature
The PK-900 recognizes UI frames with a destination field of "QRA"
and will respond by sending an ID packet. This is helpful for others
new to your area that are looking for other packet stations to talk
to. To disable this feature and remain anonymous, simply set User
BIT 22 OFF (UBIT 22 OFF). The default is ON.
If you wish to see who is available in your local area, simply set
your UNPROTO path to QRA and send a packet. Within 1 to 16 seconds
other stations should respond to your QRA request by sending an ID
packet of their own. This feature is compatible with TAPR's QRA
feature introduced in the 1.1.8 firmware release.
4.9.5 The CFROM Command
If you ever want to exclude certain stations from connecting or only
allow friends to connect, you may do so with the CFROM Command. See
The Command Summary for details of its operation.
4.9.6 Operating in Full-Duplex
Most packet operation is carried on over Half-Duplex transceivers that
can transmit and receive but not do both at the same time. When a
separate transmitter and receiver is used such as in satellite
operation, you may want to use the FULLDUP Command in the PK-900.
4.9.7 Identifying as a Digipeater
If your PK-900 is being used as the primary digipeater in a local
area, you may want to enable the HID command. HID will automatically
identify your station for others to see.
4.9.8 Digipeater Alias Callsign
If your packet station is being used as the primary digipeater in your
local area, you may want to choose a simpler identifier for others to
use with the MYALIAS Command.
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