Amateur Radio
(HAM)
Overview
What is it?
Personal communications
Emergency communications (back-up)
MARS
A hobby
A learning tool
Contesting
Field day (Last Weekend in June)
An obsession
More information
Internal web site
ARRL
QRZ.com
So Dave, what’s
this about using the
Internet for
amateur radio
communications?
TCP/IP IPX/SPX
VOIP
NCP
PPTP
POP
PPP
DHCP CSMA/CD RAID
FTP FDDI HDLC LLC
Echo Link Overview
System Diagram
Repeat
er
Repeat
er
Alternate System
You can also down
load the software
to your PC and
chat with any
EchoLink station
from your PC.
Find some node numbers
Types of Connections:
ZL1VK-R
The “-R” means that you are
connecting to a repeater at the other end.
ZL1VK-L
The “-L” means that you are
connecting to a link, possibly a radio operating on a
simplex frequency, at the other end.
KC2APG
No suffix means that you are
connecting to a computer at the other end that does
not connect to a radio.
Commands
(227963) Entering the node number
directly connects you to that node.
08
Status is announced
09
Reconnect to last station
011 Connect to random favorite
02
Connect to random conference
03
Connect to random user (link)
#
Disconnect
Demonstration
Tune our Radio to the 146.880 repeater
 Listen for activity……
On the TT pad, punch 01 (Random node)
The voice announces KA2TSC
connected…….N2STC
You then announce {your call} listening, or
call CQ
When someone answers, talk normally
When finished, hit # to drop the connection
EchoLink Comments
•Broadband or Dial-up Internet connections work.
•Some consider computer-to-computer not “amateur radio.”
•If you access the Internet through a router, you have to program
the router to forward packets. At home this is OK. In big
companies, a problem.
•Some folks leave EchoLink software running on their computer
even when they’re not around to answer calls. This isn’t polite.
•There is sometimes a slight delay in the audio. It’s best to leave
a longer pause on an Echolink repeater.
•Callsign validation process not robust.
Links for more information
www.qrz.com/n2stc

www.echolink.com
