The Packet Radio
“
2 N 1
”
Handbook
by
Buck Rogers
K4ABT
Section 1
;
Packet Radio “The Basics
”
Section 2
;
The X1J4 System Node Operator’s (SNO) Handbook
Section II
;
TheNET X1J4 System Node Operators Handbook
__ Page 28
Chapter Nine
Constructing, Installing, and Configuring
TheNET X1J/4 NODES
DUAL AND MULTI-FREQUENCY NODE (STACK) OPERATION:
To realize the full potential of TheNET
X1
's high-level
networking capabilities, it is an excellent idea to
minimize
interference between local (uplink/downlink) and long-
haul (crosslink) traffic. One good way to accomplish this
is to reserve one radio frequency exclusively for inter-
node traffic, to provide end-user access to the nodes on
one or more separate frequencies, and to discourage
(ideally, to prevent “ACL”) end-users from using the
inter-node "backbone" frequency. This approach requires
network nodes that can access two or more frequencies.
A REAL “SIX-PACKet.” NODE-STACKS
PERFORM CROSSLINKING BETWEEN TWO OR
MORE FREQUENCIES OR BAUDRATES. SIX
MFJ-1270C’s EQUIPPED WITH X-1J4 EPROM .
The node stack shown here is located atop 3000 foot,
“No Business mountain” in central Virginia.
The MFJ-1270”C” can be equipped with the add-on MFJ-9600 (9600 baud) Modem. The MFJ-1270CQ Turbo is a
complete 300, 1200 or 9600 baud TNC. All MFJ-1270 “B” / “C” and PacComm TNC2 clones are X-1J4 TheNET
node compatible.
