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References: [ +from:olinger@bellsouth.net: 438 ]

Total 438 documents matching your query.

101. Re: Topband: radials and shunt fed tower (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 17 Dec 2009 20:18:31 -0500
You need to connect radials and tower base and shield all together. Also pay the usual attention to dissimilar metals by use of fasteners made for connecting copper to galvanized steel, doing some co
/archives//html/Topband/2009-12/msg00206.html (8,577 bytes)

102. Re: Topband: Long, Unelevated Wire Antennas (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 6 Jan 2010 15:32:56 -0500
This is an example of a Ground Low Velocity Factor antenna. A 1200' wire on the ground is quite lossy. That means that current induced from the feedpoint toward the far end will be effectively self-t
/archives//html/Topband/2010-01/msg00078.html (9,059 bytes)

103. Re: Topband: [Fwd: Re: Equal opportunity] (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 2 Feb 2010 22:53:58 -0500
There is no penalty for me giving an apparent dupe "another" exchange. No contest sponsor deducts for scattered dupes. If I *don't* give the extra exchange, and I'm not in his log, the disputed qso w
/archives//html/Topband/2010-02/msg00036.html (12,419 bytes)

104. Re: Topband: Inverted L (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 12 Feb 2010 10:58:55 -0500
If you pull up an inverted L next to a tower, be sure that the base of the tower is bonded to the ground radial system. Depending on all kinds of things, the tower can carry anywhere from next to no
/archives//html/Topband/2010-02/msg00117.html (8,402 bytes)

105. Re: Topband: Need antenna advice (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 12 Feb 2010 11:14:22 -0500
What tugs at my gut most is that you may have placed insulated radials down on the snow , using the dimensions in the links for laying on the ground. The velocity factor of wires laying on the ground
/archives//html/Topband/2010-02/msg00118.html (10,453 bytes)

106. Re: Topband: Inverted L (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 12 Feb 2010 21:49:00 -0500
I had forgotten about the insulating of the parasitics on the F12 stuff. He would just have to remove the slit plastic tubing (slit pvc water pipe) and tighten the element mount U bolts directly on t
/archives//html/Topband/2010-02/msg00122.html (11,364 bytes)

107. Re: Topband: Beverage supports - Thinking of Deer... (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 24 Feb 2010 22:38:36 -0500
If the actual signal is more on the beverage, but the signal to noise is better on your K9AY, and that difference is making the K9AY harder to use, then simply add a good preamp after the K9AY. Bever
/archives//html/Topband/2010-02/msg00204.html (13,721 bytes)

108. Re: Topband: Earth conductivity (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 26 Feb 2010 15:46:59 -0500
Almost nobody has highly conductive dirt. On average it tends not to be good for much agriculturally or for supporting buildings. In the EZNEC table for dirt characteristics used in approximating rea
/archives//html/Topband/2010-02/msg00216.html (9,671 bytes)

109. Re: Topband: beverage question (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Fri, 5 Mar 2010 17:15:42 -0500
It is not the best way to feed them normally, but try feeding the beverages DIRECTLY to the coax to see if you hear signals. Also use the AIM 4170 to sweep the coax lines by themselves 1) with a matc
/archives//html/Topband/2010-03/msg00037.html (9,456 bytes)

110. [Antennaware] Why I use modeling software (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Sat, 6 Mar 2010 23:34:21 -0500
When I first started using modeling software, the temptation was to accept those results as real and I quickly succumbed. I came up with some models that showed excellent gain and put one up. I quick
/archives//html/Topband/2010-03/msg00044.html (11,975 bytes)

111. Re: Topband: suitable wire for top loading wires? (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 17 Mar 2010 09:59:20 -0400
I think the key here is maybe not the wire so much, but the tree. I hold up an inverted L between trees, and the sudden stress of tree movement pulling a wire taut can be QUITE high. Would be very he
/archives//html/Topband/2010-03/msg00083.html (9,330 bytes)

112. Re: Topband: suitable wire (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 18 Mar 2010 10:54:21 -0400
An alternative to sash weights is 3 or 4 inch plastic pipe capped on both ends filled with gravel or small stone. Small hole at bottom to drain water, Eyebolt with large washer inside through top cap
/archives//html/Topband/2010-03/msg00094.html (9,577 bytes)

113. Re: Topband: Ladderline: To Twist or Not to Twist? (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 23 Mar 2010 14:46:48 -0400
450 window line usage at NY4A with the anti-wind twisting seems to be completely normal. Just note in passing that 450 ohm line usually is not 450, having measured 440 through 410 (with or without tw
/archives//html/Topband/2010-03/msg00126.html (8,028 bytes)

114. Re: Topband: Grounded half square/half loop detuning (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 25 Mar 2010 17:34:33 -0400
Hi, Petr, If BOTH ends of the wire are disconnected from ground and float with nothing attached during RX, the wire is roughly three quarter wave on 160. 3/4 wave is an anti-resonant length with both
/archives//html/Topband/2010-03/msg00144.html (11,118 bytes)

115. Re: Topband: [Fwd: Re: Question for the EXPERTS and Heavy Transceiver users and testers] (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 1 Apr 2010 14:01:08 -0400
The Sherwood RX listing is at http://www.sherweng.com/table.html The Kenwood 850 is on the list, but the 746 models are not evaluated. 73, Guy. _______________________________________________ UR RST
/archives//html/Topband/2010-04/msg00004.html (9,509 bytes)

116. Re: Topband: BCB Interference (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Mon, 5 Apr 2010 12:11:27 -0400
MF Broadcasting stations often change patterns and reduce power at night due to onset of distance propagation. A receiving high pass filter that passes 1.8 Mhz and up should do wonders for you. 73, G
/archives//html/Topband/2010-04/msg00034.html (8,682 bytes)

117. Re: Topband: Inverted-L Help (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Mon, 5 Apr 2010 17:48:04 -0400
When you suspend an inverted L from a tower, the tower is always in play. Using a tower of that size to hold up an inverted L will involve the tower in at least as much current flow as the "L". To pr
/archives//html/Topband/2010-04/msg00037.html (9,116 bytes)

118. Re: Topband: deterioration of RG-6 (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Tue, 6 Apr 2010 20:03:21 -0400
I would have to call this the true colors of RG6, given enough time. I have had that problem with years old TV & SAT leads around here, and am going to flooded RG6 on anything new, to prevent just wh
/archives//html/Topband/2010-04/msg00048.html (9,628 bytes)

119. Re: Topband: Coax for receive (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Wed, 7 Apr 2010 14:54:38 -0400
Flooded RG6 from reputable dealers is good stuff. RG58A does not bury, and water ingress is just as much a problem on it as regular RG6. Regular RG6 is fine for wiring houses and other completely dry
/archives//html/Topband/2010-04/msg00055.html (7,263 bytes)

120. Re: Topband: Inverted L wire (score: 1)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 27 May 2010 11:32:27 -0400
It is possible to find 500 foot spools of teflon insulation for #11 wire (I got such a spool on Ebay). With some work, assuming you know how to straighten out #12 copperweld, the teflon tubing can be
/archives//html/Topband/2010-05/msg00057.html (8,761 bytes)

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