Specifications

the section on Multi-connect packet operation that Packets received on
Radio port 1 will be on one of the ten logical channels numbered 0-9.)
The second packet is another "CQ" from WX1AAA. Again, there is a "p1"
in front of it so we know it was also received on Radio Port 1.
The third packet is an Information-Frame, or simply an "I-Frame" that
was monitored on Radio Port 2. We know this was received on Radio
Port 2 because of the "p2" shown before the packet.
Remember that Packets received on Radio port 2 will be on one of the
26 logical channels designated A-Z.
The fourth packet is an acknowledgment to the previous I-Frame
received on Radio Port 2. Again, the "p2" in front of the packet
tells us it was received on Radio Port 2.
The fifth packet is a Connect Request from WX2BBB to WX1AAA that was
monitored on Radio Port 1. The "p1" in front tells us so. The sixth
packet is an acknowledgment by WX1AAA to the connect request.
The seventh and last packet shown above, is the first I-Frame that
WX2BBB is sending to WX1AAA after they have connected.
4.8.3 Controlling Your Transmitted Text
If you are using an AEA PAKRATT program designed for the PK-900,
switching between Radio Ports is described in the program manual.
If you are using a computer terminal, terminal program or the
"Dumb Terminal Mode" of an older PAKRATT program, this section will
describe how to control and switch between the radio ports.
4.8.3.1 Defining the Channel Switching Character CHSWITCH
Before you can switch between logical channels or Radio Ports you must
define a Channel Switching character that you will use to signal the
PK-900 that you want to redirect your transmitted text. This
special character is defined with the CHSWITCH command and should be
one that you do not normally type in conversational text such as the
vertical bar "|" ($7C), or the tilde "~" ($7E). To enter the vertical
bar "|" as the CHSWITCH character, first enter the Command Mode of the
PK-900 and then type CHSWITCH $7C as shown below:
CHSWITCH $7C <Enter>
The PK-900 will respond with the following:
CHSWitch was $00
CHSWitch now $7C (|)
Once a CHSWITCH character has been entered, you may switch Radio
Ports or Packet logical channels of the PK-900 at will.
1/93 4-32