<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=text/html;charset=iso-8859-1 http-equiv=Content-Type>
<META content="MSHTML 5.00.2014.210" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2>Hi all</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>Several quick thoughts on the GC-100:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>My GC-1000 has been running almost constantly for over 12
years. I have found that the internal power supply was very inadequate and
generated a lot of heat, so for the last 6 years I moved it to the 12V
input. I would highly recommend the change. </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>The new LF receivers found at Radio Shack and other
places just do not have the reception the Heathkit does. These
puppies work great even in the first floor apartments of NYC.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>If anyone on this list is the highest bidder on the e-pay
GC-1000 they better check in with the seller who is implying that the clock will
output RS-232. When I bought my clock the RS-232 was a optional purchase,
the Model GCA-1000-1 was about $50 extra. Maybe Heath combined the two
kits at a later time but I doubt it. Chuck Penson mention's this fact in
his book as well.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>Someone else mentioned about weather the Clock was Y2K
compliant and so far it is not. A switch on the inside of all clock with
the RS-232 option allow up to a 15 year value to be added to the base year of
'83. So all clocks will be showing the year is '98 and will not go to
'99. The device used to output the date and time is a 40pin Programmed
microprocessor from Heath part number 444-200 so unless someone can reprogram a
new one we are out of luck. On the other hand software can resolve this
problem. I have written a small routine in VB6 that reads the output and can
also correct the client workstation clock. I do not include the year since
I know it is wrong. The problem with it is that I can not get better that 1sec
precision without a lot more code and then I'm mot sure if the code could be
much better than .2-.3 seconds. Just does not seem worth the effort.
</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>
<DIV><FONT size=2>Question: I have heard that the 3.6MHz output on the back of
the clock can be used as a very accurate signal source. Would love to hear
from others that this is true. My Freq. counters just do not have
the lab quality resolution.</FONT></DIV></FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>Tim</FONT></DIV>
<DIV><FONT size=2>W1TCC</FONT></DIV>
<DIV><FONT size=2>By the way 20M is hot and it's 12:35am Eastern
</FONT></DIV></BODY></HTML>