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..--------------------..<br />
Systems & Software Consulting<br />
"Affordable Solutions That Work..."<br />
Sman Business Computer & Progtam Support Since 1986<br />
- • Systems AnalysIS, Design, Development & Networking<br />
• Custom Programming, Documentation & Training<br />
• Web Site Design, Implementation & Hosting<br />
• ' Year <strong>2000</strong>' (Y2K) Issues and Answers<br />
• 'How To' Inlernel Training<br />
• Reasonable Hourly or Contract Rates<br />
On the World Wide Web at<br />
www.SandSC.com<br />
E-Mail: Fnmk@SandSC.com<br />
Voice: 760-941·9174 Fax: 760-941·2070 <br />
Contact Frank Littlebury (KE6WOE) <br />
..------------...1required "windows"<br />
Work Parties<br />
(General workparties are not scheduled during<br />
the winter months although the Techs do make<br />
hurried runs to the site for various Technical<br />
reasons -Ed)<br />
(12.28.99) WB6FMTJerry and<br />
W9FQNStan again visited the repeater<br />
site to make adjustments on the autopatch<br />
repeater. Deviation levels were<br />
sent and provisions were made for the<br />
addition ofa Touch Tone re-encoder for<br />
more constant TT signals.<br />
Computer contacts were made using<br />
~ the new system but a problem was confirmed<br />
with patch #1 in N. Co.<br />
Patch Update<br />
WB6FMTJerry & W9FQNStan<br />
The new autopatch system is up and<br />
running after many unplanned setbacks:<br />
1. three transmitter :failures<br />
2. three phone number filters at the<br />
three autopatch sites either lost their<br />
programming or killed all numbers that<br />
were sent to it.<br />
3. unequal intensity tones (each number<br />
is defined by two different tones for a<br />
total of8 tones - 4 rows by 4 columns)<br />
4. a tone re-generator that missed tones<br />
and "elongated" other tones at the repeater<br />
site.<br />
5. PIN numbers were sneaking into the<br />
individual patches and bringing up several<br />
patches at the same time. The problem<br />
should be solved in "hardware" but<br />
a temporary solution was found by pro<br />
~, gramming around the problem for the<br />
present.<br />
6. A connector-adapter was intermittent<br />
* * *<br />
In the process ofgoing through these<br />
r-.....--.....--.........................----------------------~~<br />
Technical and flne'..ntl·onal 'T''h,·n'DCO.- 1\.Tewco, pg.9<br />
vI' ' u J. J It~ 1 ..4~. ·33·<br />
R t A h C 1,369<br />
epea ers, utopatc es, ontests, etC.<br />
trials and tribulations, we discovered<br />
that the tones had to be within certain<br />
windows or the patches would not operate<br />
properly.<br />
With the computer system, it was<br />
possible to adjust the sending of the<br />
tones to the nearest 0.000433 of a sec<br />
ond so that they fell exactly within the<br />
for proper eqUipment<br />
action to take place.<br />
Whether you dial the digits rather<br />
rapidly by hand or slowly. the computer<br />
re-dials the dialed digits always at the<br />
same speed so the new system should be<br />
more reliable than the old system.<br />
At present there are approximately<br />
3,200+ different data items in the computer<br />
that it needs for dialing correctly<br />
to one of the three autopatches and this<br />
number is growing each day.<br />
Basically, the system does the following:<br />
1. A "black box" detects digits dialed<br />
and sends them to the computer's<br />
RS-232 port. While the computer<br />
is working, a beep is heard on the<br />
repeater so that you know that the<br />
computer is working<br />
2. Computer uses "lookup tables" and<br />
Mar.<br />
decides <br />
a. is the PIN valid (still a member),<br />
callsign, name, etc .<br />
b. which patch will be used(l,2 or 3)<br />
c. is the number to be dialed with<br />
a"}" (ie, 1-760-749-0276 or<br />
only as 749-0276)<br />
d. it then dials the proper sequence<br />
with the required time for each<br />
digit sending the data out the<br />
printer port to another "black<br />
box" (tone generator).<br />
e. the computer screen has on it <br />
1) the digits you dialed<br />
2) the digits dialed by the<br />
computer (phone number)<br />
3) your callsign, expiration date<br />
ofmembership, & your name<br />
4) date, time ofcall & length<br />
Ifthe computer does not like anything<br />
in the dialed sequence, it asks no<br />
questions - it just KILLS KILLS<br />
KILLS all in the blink of an eye while<br />
expressing no feeling about what it has<br />
done! In fact, in most cases, it KILLS<br />
while you are dialing so that when you<br />
finish you just hear nothing. If that is<br />
the case, check the digits you dialed and<br />
try again after issuing a # and waiting at<br />
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e-mail: rfp@rfparts.com <br />
(800) RF-PARTS - (760)744-0700: fax (760)744-1943 <br />
RF PARTS, 435 S. Pacific Street <br />
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