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<strong>PK</strong>-<strong>232</strong> OPERATING MANUAL<br />
PACKET RADIO<br />
4.8.3 The ALTMODEM Command<br />
The <strong>PK</strong>-<strong>232</strong> has the ability to connect an optional 2400 bits/sec DPSK modem<br />
that can be factory installed. This command is ONLY used to select this<br />
modem if it has been installed.<br />
4.8.4 The CFROM Command<br />
If you ever want to limit the number of stations or exclude certain<br />
stations from connecting to you you may do so with the CFROM Command.<br />
4.8.5 <strong>Operating</strong> in Full-Duplex<br />
Most packet operation is carried on over Half-Duplex transceivers that can<br />
only transmit or receive but not do both at the same time. In some<br />
systems where a separate transceiver and receiver is used such as<br />
satellite operation you may want to take advantage of the FULLDUP Command<br />
in the <strong>PK</strong>-<strong>232</strong>.<br />
4.8.6 Identifying as a digipeater<br />
If your <strong>PK</strong>-<strong>232</strong> is being used as the primary digipeater in a local area,<br />
you may want to enable the HID command. HID will automatically identify<br />
your station for others to see.<br />
4.8.7 Digipeater Alias Callsign<br />
If your packet station is being used as the primary digipeater in your<br />
local area, you may want to choose a simpler identifier for others to use<br />
with the MYALIAS Command.<br />
4.8.8 Morse ID in Packet<br />
In most countries packet is an accepted mode of identification so this<br />
command should be left OFF. In some countries however a Morse ID is<br />
required when packet is used and so the MID command should be enabled.<br />
4.8.9 Sharing Packet Channels with Voice Operation<br />
Although it is seldom needed, the <strong>PK</strong>-<strong>232</strong> does have an input for SQUELCH<br />
information from a transceiver on the RADIO connectors. This input should<br />
be used and the SQUELCH command set if the packet channel is to be shared<br />
with voice operation.<br />
4.8.10 Disabling Transmit Operation<br />
Occasionally for test purposes it may be desired to disable the PTT<br />
circuit in the <strong>PK</strong>-<strong>232</strong>. This can be done with the XMITOK Command.<br />
4.8.11 The Packet ORA Feature<br />
The <strong>PK</strong>-<strong>232</strong> recognizes UI frames with a destination field of 'QRA" and will<br />
respond by sending an ID packet. This is helpful for others new to your<br />
area that are looking for other packet stations to talk to. To disable<br />
this feature and remain anonymous, simply set user BIT 22 OFF (UBIT -12<br />
OFF). The default is ON.<br />
2/93 4-26<br />
From The <strong>N3UJJ</strong>.COM Document Library
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