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Systems & Software ConsultingTe.chnical and.Op..erationalThinos: News, pg.9<br />
"Affordable Solutions That Work..... It' -45<br />
Small Business Computer & ~Support SiD.., 1980 R A h ~ 1,381<br />
epeaters, . utopatc es, ,-,ontests, etc.<br />
Apr.<br />
Tech Report<br />
Mike Doyle AB6QT@amsat.org<br />
147.130 PL Througbput problem:<br />
As many of you know, there has been an<br />
intennittent problem on the 147.130 repeater<br />
that renders it inoperable (until a<br />
controlop puts it into net mode). Well,<br />
only time will tell, but I may have nailed<br />
this one I hope.<br />
In early March I went to the site<br />
once again to try to find this one. I was<br />
able to pin it down to a specific board<br />
while the problem persisted. and then<br />
once I "disturbed" the board, the problem<br />
went "away" and the repeater<br />
worked normally. So, I removed the<br />
board and spent about an hour resoldering<br />
all of the connections on it.<br />
Only time will tel on this one, but let's<br />
hope for the best.<br />
The worse case scenario ifthe problem<br />
returns is that the Auto Patch wont<br />
work on this one because the PL isnt<br />
getting through it. With the repeater in<br />
~----------------~----------------------------~ ~~<br />
• Systems Analysis. Design, Development & Networking<br />
• Custom Programming, Documentation & Training<br />
NET mode, it will operate identically to<br />
• Web Site Design, Implementation &Hosting<br />
• ' Year <strong>2000</strong>' (Y2K) Issues and Answers the 146.730 that has the PL turned off<br />
• 'How To' Internel Training<br />
most of the time. If anybody notices<br />
• Reasonable Hourly or Contract Rates<br />
this problem retumig even for short<br />
On lhe World Wide Web at<br />
periods, please email me at<br />
www.SandSC.com<br />
ab6qt@amsat.org. Thanks.<br />
E-Mail: Frank@SandSC.com<br />
146.730 Autopatch: An intermittent<br />
on the interface board in the<br />
Voice: 760-941-9174 Fax; 760-941-2070<br />
Contact Frank Littlebury (KE6WOE)<br />
..-------------.146.730 repeater caused unreliable<br />
Work Parties<br />
Auto Patch usage. I replaced the board<br />
with a newer design (fewer parts and<br />
(General workparties are not scheduled during<br />
the winter months although the Tech" do make works better) in early March. The older<br />
hurried rons to the site for various Technical board will be repaired as time permits<br />
reasons -Ed)<br />
(3.1-3)AB6QIMike visited the repeater<br />
site twice. Once to restore the PL<br />
detect on 147.130 and then to replace a<br />
patch interface board in 146.730. He<br />
left with all patch connections working<br />
except for 147.075 which still has problems.<br />
(3.??)WB6FMTIerry and WB6lQS<br />
John made some minor adjustments to<br />
the northern patch so that some equipment<br />
could be removed.<br />
and kept as a spare.<br />
449.420: Off Frequency in late 1999<br />
due to a drifting channel element on the<br />
receiver side. NOTE: the channel element<br />
was bought brand new sometime<br />
in early 1998. The Mitrek <strong>Radio</strong> is over<br />
20 years old and still working fine.<br />
Another note. Most ofthe problems<br />
that we encounter are not due to the age<br />
of the equipment. It should be remembered<br />
that NEW doesn't necessarily<br />
mean BEITER. The problems that we<br />
have at the site are almost always<br />
brought on by either HEAT from the<br />
summer months or COLD and ICE<br />
from the winter months.<br />
Patch Use<br />
The only way we can check to make<br />
sure that you can connect to the phone<br />
numbers important to you is for you to<br />
use the patch and the phone numbers<br />
you are interested in calling.<br />
There are almost 10,000 individual<br />
characters of D AT A typed into the<br />
SYSTEM program and there are bound<br />
to be some errors in typing by W9 FQN.<br />
who has been accused from time ot time<br />
fo being dyslexic.<br />
We also have the additional problem<br />
that the phone company adds prefixes<br />
without consuhing with us first!<br />
This total does not take into account<br />
over 13 pages of QBASIC code in the<br />
program.<br />
Topo(s)<br />
Free topographic maps are said to be<br />
available on-line for the "entire United<br />
States" courtesy, in part, ofthe<br />
U.S. Geological Survey:<br />
http://www.topozone.com/<br />
CGC's experience indicates that the<br />
site lacks some maps or portions of<br />
maps, but is impressive overall.<br />
F.-oan MILLIWATTS to I(ILOWATTS<br />
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