Purchasing an AREDN compatible radio and antenna is only the first step in
assembling a useful, deployable, personal node.
Additional parts and equipment to support planned network
capabilities—including provisions for portable power—must be
purchased and then packaged in a manner which allows for safe and
reliable operation.
Trevor Paskett (K7FPV), a member of
the AREDN project, has designed a a portable
mesh node to support his local mesh network’s mission while meeting
served agency policy restrictions which prohibit permanent installation
of equipment in their buildings.
Incident and event net traffic falls into two categories: formal message
traffic and tactical traffic.
Tactical traffic consists of ad hoc messages about what is happening
during an incident or event. And the purpose of a tactical traffic net
is to enable all participating stations to pass traffic while it is
still relevant.
Efficient tactical traffic nets engage in succinct and unambiguous
communication through the disciplined use of a well practiced protocol
which eliminates over identification and avoids the introduction of
extraneous words.
One such tactical traffic net protocol is illustrated in a
Tactical Communications Exercise
conducted during an
AEN-MAR
net. In this recording you will hear net participants practicing their tactical communication protocol as they check-in, submit their reports, and engage in discussion.
Channel bandwidth is a precious commodity on a tactical net. Remember,
a tactical net intends to move “right-now” messages while they’re still
relevant. Extraneous words—especially when everybody starts adding
them out of habit—add up quickly to limit how much message traffic
can move across the net. They especially add up during check-ins or
when Net Control polls stations for reports. [The AEN-MAR Tactical
Communications Exercise net activity focuses] on and exercise[s] how to
hit your message and move on. Say more, clearly, with fewer words so
others can get their traffic passed, too 1
An introductory video by
W2AEW
describing how complex impedance and admittance are represented on the
Smith Chart, and how to convert between them. Includes a demonstration using a
[VNA](https://en.wikipedia.org/wiki/Network_analyzer_(electrical)
to illustrate the complex impedance representation on a live smith chart with
variable resistive and reactive components.)
Listen to a discussion about maintaining proper equipment temperature in the
Keeping Cool
episode of the
ARRL The Doctor is in podcast and learn some
interesting facts.
The ARRL board of directors will be considering a proposal at its January
meeting to make significant changes to the League’s Articles of Association
and By-Laws. …
Among the proposed changes, the board of directors will be able to revoke
League membership “for cause” and to remove board members by revoking their
League membership; 1
