[SECC] Computer question/hardline
Gary Breed
gary@noblepub.com
Fri, 8 Jun 2001 12:34:40 -0400
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Greg
Cell site hardline is 50 ohms. I have a 150-foot chunk of new 7/8" =
Heliax that was a reel-end and=20
some used 7/8" that came from an upgraded cell site. (A friend in =
Colorado was a cell site=20
planner)
The easiest way to tell them apart is the larger size of the 50-ohm =
inner conductor. In 50-ohm
cables, the inner is roughly the same diameter as the thickness of =
the dielectric between the
inner and outer conductors. This is easy to eyeball, since 75-ohm =
cable inner conductors are
half the diameter of 50-ohm inners.
I'm not a computer networking guru, but I know Writelog has occasional =
blurps like this when=20
Windows is off doing other jobs. But I don't recall any reports of =
these being network-related.=20
=20
Best bet is the relfector for the logging software you are using. =
Some pretty good minds will
find an answer for you.
73, Gary
K9AY
Hope all is well and everyone is enjoying the rain. I need the wisdom =
of the reflector on the following 2 question.
1. In the Cell phone industry, do they use 50 ohm or 75 ohm hardline? =
There is a crew adding antennas to a cell phone tower near work and =
they may have some reel ends left over. The guy I talked to did not =
know.
2. I use 2 networked computers for logging. When I hit the + key, =
the computer "hangs up" when sending the T of the TU K4NO message. It =
sends a longer T character and it's got to be causing some confusion for =
the person on the other end. I think this happens when it sends the =
info to the other computer in the network. What is the fix? =20
thanks
Greg K4NO
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style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
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<DIV><FONT face=3DArial size=3D3>Greg</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D3>Cell site hardline is 50 ohms. I =
have a=20
150-foot chunk of new 7/8" Heliax that was a reel-end and =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D3>some</FONT><FONT size=3D3><FONT =
face=3DArial> used=20
7/8" that came from an upgraded cell site. </FONT><FONT =
face=3DArial>(A=20
</FONT><FONT face=3DArial>friend in Colorado was a cell site=20
</FONT></FONT></DIV>
<DIV><FONT size=3D3><FONT face=3DArial>planner)</FONT></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial>The easiest way to tell them apart is the =
larger size of=20
the 50-ohm inner conductor. In 50-ohm</FONT></DIV>
<DIV><FONT face=3DArial>cables, the inner </FONT><FONT =
face=3DArial>is=20
roughly the same diameter as the thickness of the dielectric between=20
the</FONT></DIV>
<DIV><FONT face=3DArial>inner and outer conductors. This is easy =
to=20
eyeball, since 75-ohm cable inner conductors are</FONT></DIV>
<DIV><FONT face=3DArial>half the diameter of 50-ohm =
inners.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D3><FONT face=3DArial>I'm not a computer networking =
guru, but I=20
know </FONT><FONT face=3DArial>Writelog has occasional blurps like =
this when=20
</FONT></FONT></DIV>
<DIV><FONT size=3D3><FONT face=3DArial>Windows </FONT></FONT><FONT =
size=3D3><FONT=20
face=3DArial>is off doing other jobs. But I don't </FONT><FONT=20
face=3DArial>recall any reports of these being=20
network-related. </FONT></FONT></DIV>
<DIV><FONT size=3D3> </FONT></DIV>
<DIV><FONT face=3DArial size=3D3>Best bet is the relfector for the =
logging=20
software you are using. Some pretty good minds will</FONT></DIV>
<DIV><FONT face=3DArial size=3D3><FONT size=3D3>find </FONT>an answer =
for=20
you.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial>73, Gary</FONT></DIV>
<DIV><FONT face=3DArial>K9AY</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>Hope all is well and everyone is enjoying the =
rain. I=20
need the wisdom of the reflector on the following 2 =
question.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>1. In the Cell phone industry, do they use =
50 ohm or=20
75 ohm hardline? There is a crew adding antennas to a cell phone =
tower=20
near work and they may have some reel ends left over. The guy I talked =
to did=20
not know.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>2. I use 2 networked computers for =
logging. When=20
I hit the + key, the computer "hangs up" when sending the T of the TU =
K4NO=20
message. It sends a longer T character and it's got to be =
causing some=20
confusion for the person on the other end. I think this happens =
when it=20
sends the info to the other computer in the network. What is the =
fix? =20
</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>thanks</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>Greg K4NO</FONT></DIV></BLOCKQUOTE></BODY></HTML>
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