[TowerTalk] Re: TowerTalk Digest, Vol 22, Issue 110

["George Lee" <geokr5c@cablelynx.com>]

I sincerely hope that you would not vote against anyone for the reason 
indicated.

BPL is inconsequential compared to the other apects of the present political 
upcoming.

73, George KR5C

----- Original Message ----- 
From: <towertalk-request@contesting.com>
To: <towertalk@contesting.com>
Sent: Saturday, October 30, 2004 7:36 PM
Subject: TowerTalk Digest, Vol 22, Issue 110


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Today's Topics:

  1. Half-Square or ?? For 80m (Paul B. Peters, VE7AVV)
  2. RE: BPL interference (Paul Playford)
  3. Re: Half-Square or ?? For 80m (Paul B. Peters, VE7AVV)
  4. Re: Re: Half-Square or ?? For 80m (j4976@juno.com)
  5. Re: BPL interference (Jamesnf@aol.com)
  6. Re: Half-Square or ?? For 80m (Jim Lux)
  7. US Tower control box schematic (W0YG (Charlie Summers))
  8. RE: BPL interference (Tod - ID)
  9. RE: BPL interference (Rick Bullon)


----------------------------------------------------------------------

Message: 1
Date: Sat, 30 Oct 2004 12:06:29 -0700
From: "Paul B. Peters, VE7AVV" <ve7avv@shaw.ca>
Subject: [TowerTalk] Half-Square or ?? For 80m
To: TowerTalk <towertalk@contesting.com>
Message-ID: <000c01c4beb3$9325adc0$6500a8c0@pauld1l1yg7uq3>
Content-Type: text/plain; charset=us-ascii

I just had my tree climber back to the acreage and now have two new antenna
supports at 110 feet. The two trees are 130 feet apart. Given the lay of the
land, the new supports are on a north - south alignment -- not ideal, but I
can't find a method of rotating the land just yet.

I'm looking for suggestions on what might give a little additional gain over
the two existing dipoles I already have in place. The dipoles are at 110
feet and they are at right angles to one another -- so one for lp/sp and the
other for JA and NA.

I have been considering a half-square for the new space -- it will just fit
nicely with the horizontal 1/2 wave section at 123 feet for operation on
75m.  As I continue to do my research, I wonder what other suggestions list
members might offer me. Thanks in advance for any and all suggestions.

73 de Paul, VE7AVV
StoneyGround Station
-|<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>|-
"All email from this address is checked by Norton AntiVirus 2003"






------------------------------

Message: 2
Date: Sat, 30 Oct 2004 20:26:44 -0000
From: "Paul Playford" <w8aef@worldnet.att.net>
Subject: RE: [TowerTalk] BPL interference
To: "'Rick Bullon'" <kc5ajx@hotmail.com>, <towertalk@contesting.com>
Message-ID: <20041030202653.4D756319E4A@dayton.akorn.net>
Content-Type: text/plain; charset="Windows-1252"

My management experience indicates crap starts at the top and works down
(along with BPL).

Amateur radio is supposed to be above politics but BPL is politics.  Witness
how quick the FCC and NTIA changed their position when Bush endorsed it.

Tuesday is when we can have our say re BPL.

de Paul, W8AEF


-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Rick Bullon
Sent: Saturday, October 30, 2004 3:52 AM
To: towertalk@contesting.com
Subject: [TowerTalk] BPL interference

Hello All
I know that the BPL issue has been beat to death and I don't to upset any of
you that is feed up with the last few threads on the subject but, I just
read the latest ARRL Bulletin. There is a quote in there from the FCC that
really surprised me!


"In addition, because power lines inherently can radiate significant noise
emissions as noted by NTIA and ARRL, good engineering practice is to locate
sensitive receiver antennas as far as practicable from power lines," the FCC
said.

In a footnote, the FCC admonished ARRL that in cases where its members
experience RF noise, "such noise can often be avoided by carefully locating
their antennas; in many instances an antenna relocation of only a relatively
short distance can resolve noise interference."


So according to the above statement if we expirence interference from BPL we
are suppose to move our antennas!!!  I don't know about any one else but I
will be damn if they want be to move my 70'tower because of BPL!!!

This is going to affect most of you in the cities more than me. BPL is
suppose to bring high speed internet to the rural areas like mine yea sure
when pigs fly, I'll never see BPL here where it is suppose to be but those
of you in the cities better start looking for a new place for their antennas
because it seems the FCC is going to back pedal on BPL interface complaints
73
Rick
KC5AJX


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------------------------------

Message: 3
Date: Sat, 30 Oct 2004 14:20:00 -0700
From: "Paul B. Peters, VE7AVV" <ve7avv@shaw.ca>
Subject: [TowerTalk] Re: Half-Square or ?? For 80m
To: TowerTalk <towertalk@contesting.com>
Message-ID: <000d01c4bec6$39bd8420$6500a8c0@pauld1l1yg7uq3>
Content-Type: text/plain; charset=us-ascii

One detail I omitted in my recent post was the fact that I want this new
antenna specifically for 75m/80m (resonant at 3.795). I already have two
dipoles for this band and a requirement of this new antenna will be to
hopefully achieve some gain over these existing dipoles that are at 110'. I
don't want all band or multi-band performance from this new antenna - I have
antennas for all  other bands. My real interest is in hopefully improving my
performance on 75/80m. This far north on the west coast, we need all the
help we can get our of our antenna systems given our short path is a polar
path and long path is truly long.

Another issue I would ask you to keep in mind when making suggestions as to
antenna type is the fact the distance from the shack to this new antenna
location is 400 feet.

73 de Paul, VE7AVV
StoneyGround Station
-|<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>|-
"All email from this address is checked by Norton AntiVirus 2003"




------------------------------

Message: 4
Date: Sat, 30 Oct 2004 16:39:02 -0500
From: j4976@juno.com
Subject: Re: [TowerTalk] Re: Half-Square or ?? For 80m
To: ve7avv@shaw.ca
Cc: towertalk@contesting.com
Message-ID: <20041030.163902.4088.0.j4976@juno.com>
Content-Type: text/plain; charset=us-ascii

I'm not an antenna expert, but it seems that if you have that much space
and that much height, maybe you should explore some kind of curtain
antenna.  I have seen a number of different types.  Maybe you could even
design one that you could change radiating patterns on switching between
broadside and end fire by switching between 2 feedpoint locations.


On Sat, 30 Oct 2004 14:20:00 -0700 "Paul B. Peters, VE7AVV"
<ve7avv@shaw.ca> writes:
> One detail I omitted in my recent post was the fact that I want this
> new
> antenna specifically for 75m/80m (resonant at 3.795). I already have
> two
> dipoles for this band and a requirement of this new antenna will be
> to
> hopefully achieve some gain over these existing dipoles that are at
> 110'. I
> don't want all band or multi-band performance from this new antenna
> - I have
> antennas for all  other bands. My real interest is in hopefully
> improving my
> performance on 75/80m. This far north on the west coast, we need all
> the
> help we can get our of our antenna systems given our short path is a
> polar
> path and long path is truly long.
>
> Another issue I would ask you to keep in mind when making
> suggestions as to
> antenna type is the fact the distance from the shack to this new
> antenna
> location is 400 feet.
>
> 73 de Paul, VE7AVV
> StoneyGround Station
> -|<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>|-
> "All email from this address is checked by Norton AntiVirus 2003"
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers",
> "Wireless Weather Stations", and lot's more.  Call Toll Free,
> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk

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------------------------------

Message: 5
Date: Sat, 30 Oct 2004 18:15:09 EDT
From: Jamesnf@aol.com
Subject: Re: [TowerTalk] BPL interference
To: w8aef@worldnet.att.net, kc5ajx@hotmail.com,
towertalk@contesting.com
Message-ID: <1e2.2dc3e847.2eb56c6d@aol.com>
Content-Type: text/plain; charset="US-ASCII"

All:

In these polarized political times, it is difficult to keep unrelated
feelings regarding the presidential candidates from inappropriately becoming 
part of
our ham radio discussions.  But having said that, before anyone assumes a 
vote
for the incumbent is a vote for BPL, do some research.  You'll find on the
Kerry's web page his total, unquestioning support for BPL.  It appears we 
have
no anti-BPL candidate.

Jim W9TM


------------------------------

Message: 6
Date: Sat, 30 Oct 2004 16:39:54 -0700
From: "Jim Lux" <jimlux@earthlink.net>
Subject: Re: [TowerTalk] Half-Square or ?? For 80m
To: <ve7avv@shaw.ca>, "TowerTalk" <towertalk@contesting.com>
Message-ID: <000401c4bed9$c295e2c0$33a8a8c0@LAPTOP152422>
Content-Type: text/plain; charset="iso-8859-1"

Why not feed all of dipoles as a phased array?  Providing the direction you
want to point isn't off the end of the dipole, then that dipole can
contribute to the pattern.  Sure, you won't be able to use some trivial
phasing like 90 degrees, but it might repay a bit of fiddling with any of a
number of antenna modeling programs just to see what might work.  Programs
like 4nec2 can be set up with current sources and symbols for the relative
phases, then can do an optimizing for forward gain, or F/B, or nullling
interference, or whatever.

You'll want something like this at the end of your NEC deck( I've used 4nec2
syntax for the symbols).  901..904 are the feedpoints for the 4 antennas.:

SY P1=0        ' initial phases
SY P2= 100
SY P3= 200
SY P4= 300


EX 6 901 1 00 cos(P1) sin(P1)
EX 6 902 1 00 cos(P2) sin(P2)
EX 6 903 1 00 cos(P3) sin(P3)
EX 6 904 1 00 cos(P4) sin(P4)


Once you've figured out if you can get a pattern like you want, then, you
can look at the feedpoint impedances and design a set of LC networks to
generate just those phases. If you can decide on just a few dominant
directions (and the dipoles alone for other directions), then you don't need
many different networks.

----- Original Message -----
From: "Paul B. Peters, VE7AVV" <ve7avv@shaw.ca>
To: "TowerTalk" <towertalk@contesting.com>
Sent: Saturday, October 30, 2004 12:06 PM
Subject: [TowerTalk] Half-Square or ?? For 80m


I just had my tree climber back to the acreage and now have two new antenna
supports at 110 feet. The two trees are 130 feet apart. Given the lay of the
land, the new supports are on a north - south alignment -- not ideal, but I
can't find a method of rotating the land just yet.

I'm looking for suggestions on what might give a little additional gain over
the two existing dipoles I already have in place. The dipoles are at 110
feet and they are at right angles to one another -- so one for lp/sp and the
other for JA and NA.

I have been considering a half-square for the new space -- it will just fit
nicely with the horizontal 1/2 wave section at 123 feet for operation on
75m.  As I continue to do my research, I wonder what other suggestions list
members might offer me. Thanks in advance for any and all suggestions.

73 de Paul, VE7AVV
StoneyGround Station
-|<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>||<*><*>|-
"All email from this address is checked by Norton AntiVirus 2003"




_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.

_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk



------------------------------

Message: 7
Date: Sat, 30 Oct 2004 23:42:16 -0000
From: "W0YG (Charlie Summers)" <w0yg@myawai.com>
Subject: [TowerTalk] US Tower control box schematic
To: <towertalk@contesting.com>
Message-ID: <000901c4beda$1ab2cd10$9601a8c0@wildimageslap>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original

Does anyone have a schematic for a US Tower HDX589MDPL control box that
mounts at the base of the tower?  US Towers is ornery and feels they don't
need to supply an instruction manual with parts lists and schematics for
their towers.  So, I wonder if anyone has been lucky enough to get one
somehow, somewhere.

My tower will not crank up.  The raising timer clicks when the local raising
switch is thrown but nothing else happens.  Have checked the fuse (easy) and
thought I would ask here if anyone has a schematic before I attempt to trace
and draw my own.

US Towers could sure make life easier but they don't seem to be willing to
provide the last yard of customer service.

73,

Charlie, W0YG..>>



------------------------------

Message: 8
Date: Sat, 30 Oct 2004 18:27:48 -0600
From: "Tod - ID" <tod@k0to.us>
Subject: RE: [TowerTalk] BPL interference
To: <Jamesnf@aol.com>, <w8aef@worldnet.att.net>, <kc5ajx@hotmail.com>,
<towertalk@contesting.com>
Message-ID: <1099182573_13361@S4.cableone.net>
Content-Type: text/plain; charset="iso-8859-1"

Maybe Ralph Nader or one of the other candidates has taken a position.

Tod, KØTO




> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Jamesnf@aol.com
> Sent: Saturday, October 30, 2004 4:15 PM
> To: w8aef@worldnet.att.net; kc5ajx@hotmail.com;
> towertalk@contesting.com
> Subject: Re: [TowerTalk] BPL interference
>
> All:
>
> In these polarized political times, it is difficult to keep
> unrelated feelings regarding the presidential candidates from
> inappropriately becoming part of our ham radio discussions.
> But having said that, before anyone assumes a vote for the
> incumbent is a vote for BPL, do some research.  You'll find on
> the Kerry's web page his total, unquestioning support for BPL.
> It appears we have no anti-BPL candidate.
>
> Jim W9TM
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers",
> "Wireless Weather Stations", and lot's more.  Call Toll Free,
> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk



------------------------------

Message: 9
Date: Sun, 31 Oct 2004 00:35:23 +0000
From: "Rick Bullon" <kc5ajx@hotmail.com>
Subject: RE: [TowerTalk] BPL interference
To: towertalk@contesting.com
Message-ID: <BAY1-F8dgjvM9KfYDov00025be6@hotmail.com>
Content-Type: text/plain; format=flowed


----Original Message Follows----
From: "Tod - ID" <tod@k0to.us>
To: <Jamesnf@aol.com>, <w8aef@worldnet.att.net>,<kc5ajx@hotmail.com>,
<towertalk@contesting.com>
Subject: RE: [TowerTalk] BPL interference
Date: Sat, 30 Oct 2004 18:27:48 -0600

Maybe Ralph Nader or one of the other candidates has taken a position.

Tod, KØTO

=============================================================
But even if he did he never has had a chance of winning. Both the canidates
will support BPL during the campain because they feel that is waht the
public wants and they are right most of the general public wants BPL it
sounds real good to them. Just wait till they get it!
Remeber the saying" be careful what you ask for. You jusst might get it !!!"
73
Rick
KC5AJX



>-----Original Message-----
>From: towertalk-bounces@contesting.com
>[mailto:towertalk-bounces@contesting.com] On Behalf Of Jamesnf@aol.com
>Sent: Saturday, October 30, 2004 4:15 PM
>To: w8aef@worldnet.att.net; kc5ajx@hotmail.com;
>towertalk@contesting.com
>Subject: Re: [TowerTalk] BPL interference
>
>All:
>
>In these polarized political times, it is difficult to keep
>unrelated feelings regarding the presidential candidates from
>inappropriately becoming part of our ham radio discussions.
>But having said that, before anyone assumes a vote for the
>incumbent is a vote for BPL, do some research.  You'll find on
>the Kerry's web page his total, unquestioning support for BPL.
> It appears we have no anti-BPL candidate.
>
>Jim W9TM
>_______________________________________________
>
>See: http://www.mscomputer.com  for "Self Supporting Towers",
>"Wireless Weather Stations", and lot's more.  Call Toll Free,
>1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk@contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk
>

_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.

_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk




------------------------------

_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk


End of TowerTalk Digest, Vol 22, Issue 110
******************************************


_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk