HyGain TAPE DIPOLE ANT vs.KEVLAR w/BRAID or #26/19 STR. INS WIRE]

---------

From: Jack W. Rucker (jackruc@mail.idt.net)
Date: Mon Aug 19 1996 - 01:42:50 EDT


On 17 AUG 96, MIKE, KR4IT wrote: (re:HyGain TAPE DIPOLE ANT Subst.)

<<<- - - "When I called Hy-Gain to check abt replacement elements they told me the
<<portable dipole using a synthetic cord with embedded conductors woven into it.
<<I think there has been a few messages posted about where you could obtain the
<<stuff. ****I am interested now, hi hi.**** Anyway from the salesman/engineers
<<description it seemed to be a modern update of the old tape measure antenna. I
<<expected some kind of reel mechanism, built-in balun, all told kind of a neat
<<package. The instruction manual I received today is very descriptive and
<<contains a number of pictures and drawings. The new 19-PD is NOT as equal
<<substitute for the tape-measure dipole. A drawing or picture is worth a
<<thousand words (no, ten thousand the way I write). But the way I would
<<describe it is that you have a so-239 center-piece to which is attached to 116
<<1/2 ft runs on each side of the embedded cord. These have attached at their
<<ends manual cable/rope winds (Hy-Gain calls them 'element bobbins'). I use
<<ords, all kinds of windable things. Actually these appear to very pretty
<<fancy 'bobbins' as they have an extension off of each each where the end of
<<the cable is attached and the frequency marker on the cable is pushed thru a
<<binding post with a knurled nut to tighten the assembly. I am not an antenna
<<expert but I have built a variety of increasingly esoteric wire antennas and it
<<appears to me that the unused element cord still wound up on the bobbin
<<probably rovides a measure of capacitance that widens the 1:1 band-width of the
<<antenna. Something like a double bazooka. To the ends and butting up against
<<the element bobbins are another bobbin at each end serving as storage for the
<<100' of dacron cord used to hang it in the trees. My impression: While I am
<<sure this is a fine product, it is NOT what I would call a suitable replacement
<<for my tape-measure dipole. Actually it looks a lot like a few portable
<<dipoles I have put together. The 'bobbin' with the knurled nut hardware looks
<<interesting but not impossible to put together yourself. At the srp (suggested
<<retail price) of $263.95 this thing looks like a $1200 USAF toilet seat in my
<<mind. I dont believe I would be interested at 1/2 the price. - - - - - - -
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<On
 On AUG 96 W4SON wrote:

<<<- - - Sources of flexible wire:

A) The Wireman, Inc. 800+727-9473 "SILKY #534-CQ 'Invisible' copper-clad steel
   #26 (19 strands) with a thin, tough dull black polyethylene jacket @0.12/ft
   (1K' spool lots - 8-14-96 quote) (Silky aalso available in #18 <16 strand>)

B) The RF Connection, Gaithersburg, MD 800+783-2666 has 2 neat offerings:
   1) 1/16" Kevlar cord, covered with *fine* copper braid @ $19/100'or 0.21/ft
     (also available on 1K' spools) (135 ft. weight = 4 oz.)

   2) 3/32" Kevlar cord (same as above) - - -23/100, or $0.25/ft. (Also 1K
  spl.)

   Kevlar is strong, does not stretch, uv proof, dark olive drab, used in
<<<bullet-proof vests. (Heat softens, solder w/care, or use alligator clips)<<<
  
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<package. The
instruction manual I received today is very descriptive and
<<contains a number of pictures and drawings. The new 19-PD is NOT as equal
<<substitute for the tape-measure dipole. A drawing or picture is worth a
<<thousand words (no, ten thousand the way I write). But the way I would
<<describe it is that you have a so-239 center-piece to which is attached to 116
<<1/2 ft runs on each side of the embedded cord. These have attached at their
<<ends manual cable/rope winds (Hy-Gain calls them 'element bobbins'). I use
<<ords, all kinds of windable things. Actually these appear to very pretty
<<fancy 'bobbins' as they have an extension off of each each where the end of
<<the cable is attached and the frequency marker on the cable is pushed thru a
<<binding post with a knurled nut to tighten the assembly. I am not an antenna
<<expert but I have built a variety of increasingly esoteric wire antennas and it
<<appears to me that the unused element cord still wound up on the bobbin
<<probably rovides a measure of capacitance that widens the 1:1 band-width of the
<<antenna. Something like a double bazooka. To the ends and butting up against
<<the element bobbins are another bobbin at each end serving as storage for the
<<100' of dacron cord used to hang it in the trees. My impression: While I am
<<sure this is a fine product, it is NOT what I would call a suitable replacement
<<for my tape-measure dipole. Actually it looks a lot like a few portable
<<dipoles I have put together. The 'bobbin' with the knurled nut hardware looks
<<interesting but not impossible to put together yourself. At the srp (suggested
<<retail price) of $263.95 this thing looks like a $1200 USAF toilet seat in my
<<mind. I dont believe I would be interested at 1/2 the price. - - - - - - -
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<On
 On AUG 96 W4SON wrote:

<<<- - - Sources of flexible wire:

A) The Wireman, Inc. 800+727-9473 "SILKY #534-CQ 'Invisible' copper-clad steel
   #26 (19 strands) with a thin, tough dull black polyethylene jacket @0.12/ft
   (1K' spool lots - 8-14-96 quote) (Silky aalso available in #18 <16 strand>)

B) The RF Connection, Gaithersburg, MD 800+783-2666 has 2 neat offerings:
   1) 1/16" Kevlar cord, covered with *fine* copper braid @ $19/100'or 0.21/ft
     (also available on 1K' spools) (135 ft. weight = 4 oz.)

   2) 3/32" Kevlar cord (same as above) - - -23/100, or $0.25/ft. (Also 1K
  spl.)

   Kevlar is strong, does not stretch, uv proof, dark olive drab, used in
<<<bullet-proof vests. (Heat softens, solder w/care, or use alligator clips)<<<
  
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<package. The
instruction manual I received today is very descriptive and
<<contains a number of pictures and drawings. The new 19-PD is NOT as equal
<<substitute for the tape-measure dipole. A drawing or picture is worth a
<<thousand words (no, ten thousand the way I write). But the way I would
<<describe it is that you have a so-239 center-piece to which is attached to 116
<<1/2 ft runs on each side of the embedded cord. These have attached at their
<<ends manual cable/rope winds (Hy-Gain calls them 'element bobbins'). I use
<<ords, all kinds of windable things. Actually these appear to very pretty
<<fancy 'bobbins' as they have an extension off of each each where the end of
<<the cable is attached and the frequency marker on the cable is pushed thru a
<<binding post with a knurled nut to tighten the assembly. I am not an antenna
<<expert but I have built a variety of increasingly esoteric wire antennas and it
<<appears to me that the unused element cord still wound up on the bobbin
<<probably rovides a measure of capacitance that widens the 1:1 band-width of the
<<antenna. Something like a double bazooka. To the ends and butting up against
<<the element bobbins are another bobbin at each end serving as storage for the
<<100' of dacron cord used to hang it in the trees. My impression: While I am
<<sure this is a fine product, it is NOT what I would call a suitable replacement
<<for my tape-measure dipole. Actually it looks a lot like a few portable
<<dipoles I have put together. The 'bobbin' with the knurled nut hardware looks
<<interesting but not impossible to put together yourself. At the srp (suggested
<<retail price) of $263.95 this thing looks like a $1200 USAF toilet seat in my
<<mind. I dont believe I would be interested at 1/2 the price. - - - - - - -
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<On
 On AUG 96 W4SON wrote:

<<<- - - Sources of flexible wire:

A) The Wireman, Inc. 800+727-9473 "SILKY #534-CQ 'Invisible' copper-clad steel
   #26 (19 strands) with a thin, tough dull black polyethylene jacket @0.12/ft
   (1K' spool lots - 8-14-96 quote) (Silky aalso available in #18 <16 strand>)

B) The RF Connection, Gaithersburg, MD 800+783-2666 has 2 neat offerings:
   1) 1/16" Kevlar cord, covered with *fine* copper braid @ $19/100'or 0.21/ft
      (also available on 1K' spools) (135 ft. weight = 4 oz.)

   2) 3/32" Kevlar cord (same as above) - - -23/100, or $0.25/ft. (Also 1K
      spl.)

   Kevlar is strong, does not stretch, uv proof, dark olive drab, used in
<<<bullet-proof vests. (Heat softens, solder w/care, or use alligator clips)<<<
  
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<package. The
instruction manual I received today is very descriptive and
<<contains a number of pictures and drawings. The new 19-PD is NOT as equal
<<substitute for the tape-measure dipole. A drawing or picture is worth a
<<thousand words (no, ten thousand the way I write). But the way I would
<<describe it is that you have a so-239 center-piece to which is attached to 116
<<1/2 ft runs on each side of the embedded cord. These have attached at their
<<ends manual cable/rope winds (Hy-Gain calls them 'element bobbins'). I use
<<ords, all kinds of windable things. Actually these appear to very pretty
<<fancy 'bobbins' as they have an extension off of each each where the end of
<<the cable is attached and the frequency marker on the cable is pushed thru a
<<binding post with a knurled nut to tighten the assembly. I am not an antenna
<<expert but I have built a variety of increasingly esoteric wire antennas and it
<<appears to me that the unused element cord still wound up on the bobbin
<<probably rovides a measure of capacitance that widens the 1:1 band-width of the
<<antenna. Something like a double bazooka. To the ends and butting up against
<<the element bobbins are another bobbin at each end serving as storage for the
<<100' of dacron cord used to hang it in the trees. My impression: While I am
<<sure this is a fine product, it is NOT what I would call a suitable replacement
<<for my tape-measure dipole. Actually it looks a lot like a few portable
<<dipoles I have put together. The 'bobbin' with the knurled nut hardware looks
<<interesting but not impossible to put together yourself. At the srp (suggested
<<retail price) of $263.95 this thing looks like a $1200 USAF toilet seat in my
<<mind. I dont believe I would be interested at 1/2 the price. - - - - - - -
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<On
 On AUG 96 W4SON wrote:

<<<- - - Sources of flexible wire:

A) The Wireman, Inc. 800+727-9473 "SILKY #534-CQ 'Invisible' copper-clad steel
   #26 (19 strands) with a thin, tough dull black polyethylene jacket @0.12/ft
   (1K' spool lots - 8-14-96 quote) (Silky aalso available in #18 <16 strand>)

B) The RF Connection, Gaithersburg, MD 800+783-2666 has 2 neat offerings:
   1) 1/16" Kevlar cord, covered with *fine* copper braid @ $19/100'or 0.21/ft
      (also available on 1K' spools) (135 ft. weight = 4 oz.)

   2) 3/32" Kevlar cord (same as above) - - -23/100, or $0.25/ft. (Also 1K
      spl.)

   Kevlar is strong, does not stretch, uv proof, dark olive drab, used in
<<bullet-proof vests. (Heat softens, solder w/care, or use alligator clips)<<<
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Personal notes: I use the Silky #26, and the 1/16' Kevlar; both are great.
                I will participate in group purchase, if enough interest shown.
                Usual disclaimer; :-) user. (Why didn't I think of Kevlar/braid?)
73,
Jack W4SON/9N1SON

attached mail follows:


On 17 AUG 96, MIKE, KR4IT wrote: (re HyGain Tape Dipole Ant Subst.)

<<<<< When I called Hy-Gain to check abt replacement elements they told me the
<<portable dipole using a synthetic cord with embedded conductors woven into it.
<<I think there has been a few messages posted about where you could obtain the
<<stuff. ****I am interested now, hi hi.**** Anyway from the salesman/engineers
<<description it seemed to be a modern update of the old tape measure antenna. I
<<expected some kind of reel mechanism, built-in balun, all told kind of a neat
<<package. The instruction manual I received today is very descriptive and
<<contains a number of pictures and drawings. The new 19-PD is NOT as equal
<<substitute for the tape-measure dipole. A drawing or picture is worth a
<<thousand words (no, ten thousand the way I write). But the way I would
<<describe it is that you have a so-239 center-piece to which is attached to 116
<<1/2 ft runs on each side of the embedded cord. These have attached at their
<<ends manual cable/rope winds (Hy-Gain calls them 'element bobbins'). I use
<<ords, all kinds of windable things. Actually these appear to very pretty
<<fancy 'bobbins' as they have an extension off of each each where the end of
<<the cable is attached and the frequency marker on the cable is pushed thru a
<<binding post with a knurled nut to tighten the assembly. I am not an antenna
<<expert but I have built a variety of increasingly esoteric wire antennas and it
<<appears to me that the unused element cord still wound up on the bobbin
<<probably rovides a measure of capacitance that widens the 1:1 band-width of the
<<antenna. Something like a double bazooka. To the ends and butting up against
<<the element bobbins are another bobbin at each end serving as storage for the
<<100' of dacron cord used to hang it in the trees. My impression: While I am
<<sure this is a fine product, it is NOT what I would call a suitable replacement
<<for my tape-measure dipole. Actually it looks a lot like a few portable
<<dipoles I have put together. The 'bobbin' with the knurled nut hardware looks
<<interesting but not impossible to put together yourself. At the srp (suggested
<<retail price) of $263.95 this thing looks like a $1200 USAF toilet seat in my
<<mind. I dont believe I would be interested at 1/2 the price. - - - - - - -
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<On

 On AUG 96 W4SON wrote:

<<<- - - Sources of flexible wire:

A) The Wireman, Inc. 800+727-9473 "SILKY #534-CQ 'Invisible' copper-clad steel
   #26 (19 strands) with a thin, tough dull black polyethylene jacket @0.12/ft
   (1K' spool lots - 8-14-96 quote) (Silky aalso available in #18 <16 strand>)

B) The RF Connection, Gaithersburg, MD 800+783-2666 has 2 neat offerings:
   1) 1/16" Kevlar cord, covered with *fine* copper braid @ $19/100'or 0.21/ft
     (also available on 1K' spools) (135 ft. weight = 4 oz.)

   2) 3/32" Kevlar cord (same as above) - - -23/100, or $0.25/ft. (Also 1K
  spl.)

   Kevlar is strong, does not stretch, uv proof, dark olive drab, used in
<<<bullet-proof vests. (Heat softens, solder w/care, or use alligator clips)<<<
  
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Personal notes: I use the Silky #26, and the 1/16' Kevlar; both are great.
                I will participate in group purchase, if enough interest shown.
                Usual disclaimer; :-) user. (Why didn't I think of Kevlar/braid?)
73,
Jack W4SON/9N1SON


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