[aprssig] Digipeaters with local sysop rules...
Stephen H. Smith
wa8lmf2 at aol.com
Fri Sep 14 02:36:46 EDT 2007
Robert Bruninga wrote:
> APRS at 1200 baud sharring a common VHF frequency among ham
> radio operators for local situational awareness and information
> exchange is so different from the IP, that it is dangerous to
> try to make any comparisons. The IP is designed for 99.999% use
> by appliance operators. That is why in the case of the IP, it
> depends on the brilliance of network designers like you to make
> it work.
>
> On the other hand, Ham radio operators are supposed to know how
> the RF channel works, be able to respond and re-constitute
> minimal communications with only what they bring with them...
>
>
Except that an appallingly large number of hams licensed under the new
era of dumbed-down practically-zero-knowledge-required exams preceeded
by 1-hour memorize-the-questions cram courses
ARE TOTALLY CLUELESS
about RF channels or anything else about radio!!!
I experienced these three incidents within 12 hours of each other:
1) At a recent radio exhibit, a supposedly General-Class-licensed
ham at a special event station spent 3 hours unsuccessfully trying to
make a contact. When I pointed out there was no antenna connected, they
replied that they didn't need an antenna because they "had an antenna
tuner", pointing to the AC power supply for the Icom IC-751 !
2) 10-year-licensed ham seeing an APRS mapping display on my mobile
laptop in the car asks me "how do I get an Internet connection in the
car?". I reply that there is no Internet; it's all received locally
off RF. Still total lack of comprehension. Turns out the visitor a)
assumed the only endpoint of APRS is findu and b) thought the only way
to have maps on a computer is from the Internet. Visitor is utterly
dumbfounded to discover that a) APRS is intended to communicate BETWEEN
RADIOS, and b) a computer can actually do stuff without being connected
to the Internet !!!
3) APRS newbie comes to my house with problems trying to get a dumb
tracker going in their car. 70-watt output transceiver wired to
battery with 26-gauge zip cord, causing a two volt drop on transmit.
Again, assumption that APRS is an AVL system with it's end point on the
Internet at findu. The usual complaint "I'm not showing up on
findu.". I ask if they have listened to their own transmissions in a
nearby radio. Seem uncomprehending. I explain that the transmitted
audio level from the tracker (i.e. deviation) is critical, and that the
only way to set it is to monitor the transmitted signal in another radio
or receiver. Still lack of comprehension. Then they insist that
they don't need to monitor the transmitted signal "because they have a
Windows program to calibrate the Tiny Track" !!!
These were all supposedly "licensed hams". Arrrrrgggh !!!!!
--
Stephen H. Smith wa8lmf (at) aol.com
EchoLink Node: 14400 [Think bottom of the 2M band]
Home Page: http://wa8lmf.com --OR-- http://wa8lmf.net
NEW! World Digipeater Map
http://wa8lmf.net/APRSmaps
JavAPRS Filter Port 14580 Guide
http://wa8lmf.net/aprs/JAVaprsFilters.htm
"APRS 101" Explanation of APRS Path Selection & Digipeating
http://wa8lmf.net/DigiPaths
Updated "Rev H" APRS http://wa8lmf.net/aprs
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