Tower Installation
pph at dc.dk
pph at dc.dk
Wed Oct 4 13:08:00 EDT 1995
Hi Wayne,
Just a quick comment:
>...ie: attach the quy wire to a 3 to 4 inch pipe cemented next to the
>fence line that is tall enough to maintain the guy angle.
I did just that once, and it solved my problems of guying a 80 ft
tower on a small city lot. I could even walk under the guywires! My
pipe was some 5 inch I think. You need some calculations here.
>Since the tower will only be 40 to 50 feet tall, would I be better
>served with a 2 el 3 band quad than with a triband yagi? I seem to
>remember reading that quads have a lower takeoff angle at lower
>heights than do yagi's at a comparable height, have less wind load
>and have more gain than a yagi with an equal number of elements.
That is the general thinking of most amateurs, who look at a quad as a
closed spaced stack. IMHO the radiation angle is only dependent on the
height of the center of the antenna. Stacked beams does not pull down
the radiation angle, but transfers power from higher loops to the
lowest one. The lower loop from a stack is longer (bigger/fatter) than
from the upper antenna alone, but its angle is higher than the lower
loop from the upper antenna alone. The lower half of the lowest loop
is almost unchanged stack or no stack. If your tower is not high
enough, stacking or using a quad will not put more power out at low
radiation angles. You may check with Terrain Analyzer 1.0 program from
K6STI (advertised in QST July 95). One other point: quads are seldom
mechanical stable.
If you want low angle of radiation you need a higher tower (say 90
ft), unless your QTH is on a hill top.
BTW, who says you need low angle of radiation? That depends on which
contest you are in. Actually it would be nice to be able to
control/steer the radiation angle. That is possible with stacked
beams.
For serious contesting you might as well move out of town right away
due to TVI, noise level and room for rotating pole(s) and beverages.
Easier said than done. =:-(
73, Palle, OZ1RH (OZ9EDR-OZ5W contest team) Internet: pph at dc.dk
>From Frits.Jensen at mch.sni.de (Frits Jensen) Wed Oct 4 12:26:10 1995
From: Frits.Jensen at mch.sni.de (Frits Jensen) (Frits Jensen)
Date: Wed, 4 Oct 1995 11:26:10 LOCAL
Subject: CT. file wanted
Message-ID: <jensen.48.00702D68 at horus.mch.sni.de>
Can anyone send me a mail and attach the CQWW.CTY file for CT in a updated
version? - (with all the russian stuff in order)?
Thanks in advance
vy 73 de DL4MHU, Frits
>From km9p at is.net (Bill Fisher, KM9P Concentric Systems, Inc.) Wed Oct 4 13:37:53 1995
From: km9p at is.net (Bill Fisher, KM9P Concentric Systems, Inc.) (Bill Fisher, KM9P Concentric Systems, Inc.)
Date: Wed, 4 Oct 1995 08:37:53 -0400
Subject: SS SSB Station Available
Message-ID: <199510041237.IAA08818 at mail1.is.net>
My station in the mountains will be available for someone interested in
operating LP SS SSB. If you have interest in operating FD Style (generator)
and rustic living conditions, drop me a note. I'll furnish the computer(s),
radios, antennas, and switch boxes (audio & the ones that keep you from
txing on 2 bands at once). 4 wheel drive vehicle is almost a must.
---
On a personal note... Starting another business has me pretty much swamped.
I think I'll concentrate on getting the new business and the station QRV,
and bypass operating SS CW this year.
73
Bill
---
Bill Fisher, KM9P - Concentric Systems, Inc.
>From Mixalis Dimitrakakis <mdim at intranet.gr> Wed Oct 4 16:34:36 1995
From: Mixalis Dimitrakakis <mdim at intranet.gr> (Mixalis Dimitrakakis)
Date: Wed, 4 Oct 95 15:34:36 EET
Subject: HF Vertical Antenna Help...
Message-ID: <199510041338.PAA22105 at helios.intranet.GR>
Dear DXers
I am trying to decide which of the two verticals I should buy for my
new QTH. (the challenger by GAP or the R7 by cushcraft).
The new QTH is an apartment on the last floor of a four story building
with flat concrete roof.I plan using the guard rails arount the roof for
radials.
I would appreciate any help or suggestions of Any owners of the above antennas
Which of the two antennas is a better performer?
Please send Email directly to me at: mdim at intranet.gr
>From John Dorr K1AR" <p00259 at psilink.com Wed Oct 4 16:41:53 1995
From: John Dorr K1AR" <p00259 at psilink.com (John Dorr K1AR)
Date: Wed, 04 Oct 95 10:41:53 -0500
Subject: CQ Contest Mag - Add'l Info
Message-ID: <3021903169.5.p00259 at psilink.com>
Wow, what a pileup! Many of you asked for subscription info. Rather than
replying to everyone individually, here's the poop:
CQ Contest magazine
10 issues/yr.
Charter Rates:
$30/year US - delivered 1st Class
$37/year Canada/Mexico - delivered airmail
$40/year Foreign - delivered airmail
Subs can be ordered now. The first issue is scheduled to be mailed
December 14.
Orders can be placed as follows:
Mail order
Via FAX: 516-681-2926
via Phone: 516-681-2922 or 800-853-9797
All of the usual credit cards are accepted.
Sorry for the commercialism here, guys. There just were so many
inquiries that I wanted to efficiently fill in the blanks for those asking.
73 John, K1AR
>From mraz at rdxsunhost.aud.alcatel.com (Kris I. Mraz) Wed Oct 4 17:24:10 1995
From: mraz at rdxsunhost.aud.alcatel.com (Kris I. Mraz) (Kris I. Mraz)
Date: Wed, 4 Oct 95 11:24:10 CDT
Subject: Vanity Callsigns: The Latest
Message-ID: <9510041624.AA22157 at maverick.aud.alcatel.com>
Here's a summary of an FCC Memorandum Opinion and Order adopted 21
September, 1995. This addresses the various Petitions for Reconsideration
filed by the ARRL and others on the Vanity callsign program.
1. Callsigns for Puerto Rico, Alaska, Hawaii and other US possessions
can only be requested if applicant has a mailing address at said location
(except for persons requesting callsigns of a deceased relative).
2. Persons requesting the callsign of a deceased relative must hold a
license class as high or higher than the callsign requested.
3. A new gate has been added, gate 1A, to allow clubs that existed prior
to 24 March, 1995 to request the callsign of a deceased member. Clubs
formed after 24 March, 1995 must wait until gate 4 to request the
callsign of a deceased member.
4. A licensee who requests a vanity callsign will have continued operating
authority until final disposition of the application.
Hope this helps.
73
Kris AA5UO
mraz at aud.alcatel.com
>From mihry at ns1.koyote.com (michael ihry) Wed Oct 4 18:35:27 1995
From: mihry at ns1.koyote.com (michael ihry) (michael ihry)
Date: Wed, 4 Oct 1995 12:35:27 -0500
Subject: new contester needs help
Message-ID: <199510041735.MAA02206 at ns1.koyote.com>
need suggestions for better scores. have 90 ft tower with 10,15,20=
tribander
dipoles for 40,80
tnx
mike, AC5CT =20
>From Cain, Jim, K1TN" <jcain at arrl.org Wed Oct 4 18:57:00 1995
From: Cain, Jim, K1TN" <jcain at arrl.org (Cain, Jim, K1TN)
Date: Wed, 04 Oct 95 13:57:00 EDT
Subject: new contester needs help
Message-ID: <3072CAC6 at arrl.org>
Move station to Caribbean island.
----------
From: michael ihry
To: cq-contest
Subject: new contester needs help
Date: Wednesday, October 04, 1995 12:35PM
Return-Path: <mihry at ns1.koyote.com>
X-ListName: Amateur Radio Contester's discussion list <CQ-Contest at tgv.com>
Warnings-To: <>
Errors-To: owner-cq-contest at tgv.com
Sender: owner-cq-contest at tgv.com
Date: Wed, 4 Oct 1995 12:35:27 -0500
Message-ID: <199510041735.MAA02206 at ns1.koyote.com>
X-Sender: mihry at ns1.koyote.com
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
To: cq-contest at tgv.com
From: michael ihry <mihry at ns1.koyote.com>
Reply-To: michael ihry <mihry at ns1.koyote.com>
Subject: new contester needs help
X-Mailer: <PC Eudora Version 1.4b17>
----------------------------------------------------------------------------
--
need suggestions for better scores. have 90 ft tower with 10,15,20=
tribander
dipoles for 40,80
tnx
mike, AC5CT =20
>From mraz at rdxsunhost.aud.alcatel.com (Kris I. Mraz) Wed Oct 4 19:21:19 1995
From: mraz at rdxsunhost.aud.alcatel.com (Kris I. Mraz) (Kris I. Mraz)
Date: Wed, 4 Oct 95 13:21:19 CDT
Subject: Vanity Callsigns: The Latest
Message-ID: <9510041821.AA22307 at maverick.aud.alcatel.com>
> ->2. Persons requesting the callsign of a deceased relative must hold a
> -> license class as high or higher than the callsign requested.
>
>
> Not quite the way I read it... from the ARRL bulletin text...
>
> -- The FCC concurred with suggestions that an amateur seeking the call
> -- sign of a deceased, close relative, should hold an equal or higher
> -- class amateur license than that held by the deceased relative. The
> -- FCC said that the two-year .... deleted..
OK. To avoid paraphrasing here's the exact text from the Opinion and Order:
>From Paragraph 9.
"Upon reconsideration, we are persuaded that this latter provision
could result in unfair assignments. For example, a Novice Class
operator could obtain a group A call sign simply because a now-deceased
relative once passed the rigorous examination for an Amateur Extra
Class operator license".
>From Paragraph 14.
"We also amend our rules to require that, in the case of a close relative
applying for the former call sign of a deceased licensee, the applicant
must hold the requisite class of operator license".
Make your own interpretation.
73
Kris AA5UO
mraz at aud.alcatel.com
More information about the CQ-Contest
mailing list