my e mails keep bouncing I do not understand why
I am thinking of converting a 2 el 40 meter hy gain to a 2 el 30 meter beam.
has anyone on the reflector done this b4
JESS COLVIN (AI9L)
ai9l@core.com
http://my.core.com/~ai9l/
http://www.qsl.net/ai9l
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----- Original Message -----
From: <towertalk-request@contesting.com>
To: <towertalk@contesting.com>
Sent: Sunday, December 05, 2004 7:33 PM
Subject: TowerTalk Digest, Vol 24, Issue 15
> Send TowerTalk mailing list submissions to
> towertalk@contesting.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://lists.contesting.com/mailman/listinfo/towertalk
> or, via email, send a message with subject or body 'help' to
> towertalk-request@contesting.com
>
> You can reach the person managing the list at
> towertalk-owner@contesting.com
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of TowerTalk digest..."
>
>
> Today's Topics:
>
> 1. Re: 50 ft self supporting tower (Alan NV8A (ex. AB2OS))
> 2. Re: Bounces replies--- tnx to all (kk9a@arrl.net)
> 3. Re: 50 ft self supporting tower (Ed Kucharski)
> 4. Re: radials for shunt fed tower (Jim Lux)
> 5. Re: Bounces replies--- tnx to all (Alan C. Zack)
> 6. Re: 50 ft self supporting tower (Alan C. Zack)
> 7. Re: Bounces replies--- tnx to all (Guy Olinger, K2AV)
> 8. Re: 50 ft self supporting tower (Larry Eckstein)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 05 Dec 2004 17:24:51 -0500
> From: "Alan NV8A (ex. AB2OS)" <nv8a@att.net>
> Subject: Re: [TowerTalk] 50 ft self supporting tower
> To: towertalk@contesting.com
> Cc: Larry Eckstein <larry5173@comcast.net>
> Message-ID: <41B38AB3.80309@att.net>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
> Check out the AN Wireless towers at www.anwireless.com.
>
> Alan NV8A
>
>
> On 12/05/04 04:50 pm Larry Eckstein tossed the following ingredients
> into the ever-growing pot of cybersoup:
>
> > The city I live in requires engineering figures for 80 mph wind loading
before they will issue a building permit to erect a tower. I am wanting to
erect an approx. 50 ft. self supporting tower capable of holding about 10 sf
of antennas. Any suggestions?
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 5 Dec 2004 22:41:28 -0000
> From: <kk9a@arrl.net>
> Subject: [TowerTalk] Re: Bounces replies--- tnx to all
> To: <TOWERTALK@contesting.com>
> Message-ID: <004001c4db1b$9036b1c0$c75e70d1@KK9A>
> Content-Type: text/plain; charset="Windows-1252"
>
> I just tried blocking geo888@cs.com and I still got the error message
> because it came from MAILER-DAEMON@aol.com. So I guess you can either
block
> the mailer-daemon which would block error messages for all AOL users or
live
> with the nuisance and hope someone knows who this is and can contact him
or
> Steve.
>
>
> ----- Original Message -----
> From: <kk9a@arrl.net>
> To: <TOWERTALK@contesting.com>
> Sent: Sunday, December 05, 2004 22:21
> Subject: Bounces replies--- tnx to all
>
>
> I believe that geo888@cs.com was a registered user of towertalk using an
> alias email address. The system administrator does not know what his
alias
> was and therefore cannot delete him. I doubt he's still a subscriber
since
> there's been numerous posts on this subject and no one come forward to
> correct the nuisance. You can avoid the error message by setting your
email
> program block that address.
>
> John KK9A
>
>
>
> To: towertalk@contesting.com
> Subject: [TowerTalk] Bounces replies--- tnx to all
> From: jimjarvis@comcast.net
> Date: Sun, 05 Dec 2004 19:43:22 +0000
> List-post: <mailto:towertalk@contesting.com>
>
> Guys...
>
> Thanks to all who responded with thoughts on why I see
> the bounce from geo888@cs.com.
>
> In short, the reason is that geo888.cs.com is still registered as a user,
> but the address is no longer valid.
>
> Because that's true, he can't get in to delete himself.
>
> So....there's some admin work required to eliminate this minor
> nuisance.
>
> In any case, I appreciate the feedback.
>
> n2ea
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sun, 05 Dec 2004 18:12:12 -0500
> From: Ed Kucharski <k3dne@adelphia.net>
> Subject: Re: [TowerTalk] 50 ft self supporting tower
> To: "Larry Eckstein" <larry5173@comcast.net>,
> <towertalk@contesting.com>
> Message-ID: <5.1.1.6.0.20041205180623.00bb9de0@pop.dc2.adelphia.net>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> Larry,
> I have become a big fan of the AN Wireless product. The LD50 is rated at
> 26.7 sf at 80mph winds. I have found AN Wireless to be VERY customer
> friendly and the service is outstanding. My HD60 has been up 1 year
> without any problems - it was a bear to install but I think you will find
> that true with any self supporting tower. Check out the webpage
> at: http://www.anwireless.com/ follow the links to windloading tables,
> foundation drawings and on-line building permits. Good Luck.
> 73,
> Ed K3DNE
>
>
>
> At 01:50 PM 12/5/2004 -0800, Larry Eckstein wrote:
> >The city I live in requires engineering figures for 80 mph wind loading
> >before they will issue a building permit to erect a tower. I am wanting
> >to erect an approx. 50 ft. self supporting tower capable of holding about
> >10 sf of antennas. Any suggestions?
> >TNX,
> >Larry W7YDA
> >_______________________________________________
> >
> >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: 4
> Date: Sun, 5 Dec 2004 16:03:00 -0800
> From: "Jim Lux" <jimlux@earthlink.net>
> Subject: Re: [TowerTalk] radials for shunt fed tower
> To: "Rick Bullon" <kc5ajx@hotmail.com>, <towertalk@contesting.com>
> Cc: w2lk@earthlink.net
> Message-ID: <001401c4db26$f3f81ae0$32a8a8c0@LAPTOP152422>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> ----- Original Message -----
> From: "Rick Bullon" <kc5ajx@hotmail.com>
> To: <towertalk@contesting.com>
> > =============================================================
> > The question I have about this is how do I tell if my ground is
excellent
> > good or poor??
> > If I just assume that I have poor ground conductivy here and use the max
> > length for 160 that is about 16000 ft of wire.
> > In another thread on here I believe the price of a 500ft spool of wire
at
> > the big box stores was about $14 a spool that would make the radial
system
> > cost about $450 dollars!!! and then there is all the time and work of
> > putting down 100+ radials
> > 73
> > Rick
> > kc5ajx
> >
>
> The short answer to your first question: "how do I tell.." is that you
> can't, at least not easily. So you're left with some systems engineering
> kinds of questions.
>
> 1) You could measure your antennas feedpoint impedance over a wide range
of
> frequencies and compare it to a very high quality EM model that properly
> handles wires in a dielectric (i.e. NEC4 and its ilk). Practically
> speaking, you'd probably spend more time modeling than laying the wires,
and
> if you're buying 3 miles of wire, you can probably get it cheaper than
from
> Home Depot (if nothing else, you don't want insulated wire, and you
probably
> don't need AWG12). On the other hand, maybe the ground is frozen right
now,
> and you've nothing better to do (or, at least more interesting) than to
run
> models, so the modeling time is essentially free.
>
> 2) You could make a system tradeoff and decide that $450 in wire and tens
of
> hours in labor might be better invested in buying a high power amplifier.
> Say some simple model (like the graphs in the ARRL antenna book) say that
> your antenna with the current grounding system might be 25% efficient, and
> going the full boat with miles of wire might bring you up to 50%. That's
a
> 3dB improvement. Say you're currently running 100W barefoot into the
> antenna. You could go out and buy a 500W amplifier for the same general
> magnitude of expense as the wire (and a LOT less labor), and get a 6dB
> improvement. Sure you can argue about the accuracy of the model, and
whether
> it's really 25% or 30%, etc., but, when all is said and done, that's
arguing
> about tenths of a dB, and you can get twice the improvement by another
> means.. If you're already running 1500W, of course, then you're stuck
with
> improving the ground. Even if you're at the 500-600W level now, the next
> bump in power costs a bunch more.
>
> 3) You could do some sort of incremental improvement strategy. Look for
> some low frequency beacons or AM radio stations in your general vicinity.
> They'll propagate by ground wave (during the day), and the EM properties
of
> the soil and your ground radials won't be much different between those
> signals and the 160m band (esp for AM broadcast). Measure the received
> signal level of those stations (who cares if there's an impedance mismatch
> or the antenna's not tuned for the signal, you're doing relative
> measurements, what you're looking at is ground system losses, and those
are
> non-resonant (to a first order) ). LF nav beacons (NDBs) are nice because
> they're constant power and not much modulation (during the CW ID). AM
> broadcast will vary due to the modulation, but with averaging it should
> work.
>
> Add some radials, and see if there's a noticeable improvement. If there
is,
> keep going. If not, you've got enough, and you can quit now.
>
> 4) If your ground resistivity is high because it's dry, investing in
> sprinklers and water might be a better strategy. In Las Vegas, of course,
> this is probably going to incur the wrath of the water police, but in a
> wetter climate, or one with cheap (free) water. Turn on the sprinklers
the
> week before the topband contest and soak that soil down real well. I
> suppose there's also the possibility of sowing the soil with salt but that
> has some other problems, although you could use fertilizer. Any ionic
> compound will help reduce resistance.. and fertilizer in ton quantities is
> pretty cheap ($10s of dollars/ton)).
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Sun, 05 Dec 2004 16:26:57 -0800
> From: "Alan C. Zack" <k7acz@cox.net>
> Subject: Re: [TowerTalk] Bounces replies--- tnx to all
> To: jimjarvis@comcast.net
> Cc: towertalk@contesting.com
> Message-ID: <41B3A751.5040703@cox.net>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
> It's been like that for months. With every post you get the
> geo888@cs.com bounce message. Just something to ignore until its fixed.
>
> jimjarvis@comcast.net wrote:
>
> > Guys...
> >
> > Thanks to all who responded with thoughts on why I see
> > the bounce from geo888@cs.com.
> >
> > In short, the reason is that geo888.cs.com is still registered as a
user,
> > but the address is no longer valid.
> >
> > Because that's true, he can't get in to delete himself.
> >
> > So....there's some admin work required to eliminate this minor
> > nuisance.
> >
> > In any case, I appreciate the feedback.
> >
> > n2ea
> > _______________________________________________
> >
> > 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
> >
> >
>
> --
> __________________________________________________________________________
>
> Alan Zack
> Amateur Radio Station K7ACZ
> Las Vegas, Nevada, USA
> Quality Engineer, The Boeing Company, Retired
> Aviation Chief Warrant Officer, U.S. Coast Guard, Retired
> U.S. Coast Guard, Always Ready, Always There
> Every hour, Every day, Around the Clock and Around the World
> SEMPER PARATUS
> http://www.gocoastguard.com
> http://www.uscg.mil/d14/units/asbp/uscgasbp/
> DEPARTMENT OF HOMELAND SECURITY
>
>
>
> ------------------------------
>
> Message: 6
> Date: Sun, 05 Dec 2004 16:42:52 -0800
> From: "Alan C. Zack" <k7acz@cox.net>
> Subject: Re: [TowerTalk] 50 ft self supporting tower
> To: Larry Eckstein <larry5173@comcast.net>
> Cc: towertalk@contesting.com
> Message-ID: <41B3AB0C.3030301@cox.net>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
> My city required 90 MPH wind calcs per IBC-2000. UBC-97 specs were
> rejected. They will most likely require the calcs to be wet stamped
> by a PE licensed in your state.
> If you are buying a new tower get these calcs and a bldg permit before
> ordering your tower. I started with US Towers. They provided 75 MPH
> wind calcs under UBC-97 codes. Not acceptable. I asked US Towers for
> the 90 MPH wind calcs. They said they needed to go to an out sourced
> PE to do the calcs for $250.00. I told them go ahead. After 3
> months, many phone calls and emails still no 90 MPH calcs. Was
> finally told NO US Towers crank up would pass 90 MPH calcs. Went to
> Heights Towers in FL, got the wind calcs for the tower I wanted OK.
> It is now in the air.
> GL
>
> Larry Eckstein wrote:
>
> > The city I live in requires engineering figures for 80 mph wind loading
before they will issue a building permit to erect a tower. I am wanting to
erect an approx. 50 ft. self supporting tower capable of holding about 10 sf
of antennas. Any suggestions?
> > TNX,
> > Larry W7YDA
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
>
> --
> __________________________________________________________________________
>
> Alan Zack
> Amateur Radio Station K7ACZ
> Las Vegas, Nevada, USA
> Quality Engineer, The Boeing Company, Retired
> Aviation Chief Warrant Officer, U.S. Coast Guard, Retired
> U.S. Coast Guard, Always Ready, Always There
> Every hour, Every day, Around the Clock and Around the World
> SEMPER PARATUS
> http://www.gocoastguard.com
> http://www.uscg.mil/d14/units/asbp/uscgasbp/
> DEPARTMENT OF HOMELAND SECURITY
>
>
>
> ------------------------------
>
> Message: 7
> Date: Sun, 5 Dec 2004 19:59:05 -0500
> From: "Guy Olinger, K2AV" <olinger@bellsouth.net>
> Subject: Re: [TowerTalk] Bounces replies--- tnx to all
> To: "Alan C. Zack" <k7acz@cox.net>, <jimjarvis@comcast.net>
> Cc: towertalk@contesting.com
> Message-ID: <03c901c4db2e$c8c32fb0$0500a8c0@swift>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=response
>
> If geo888@cs.com was in the user database, the reflector software
> would have cancelled the address itself.
>
> This problem is because someone registered a forwarding address as the
> user to Towertalk, and then abandoned the address being forwarded TO.
>
> Towertalk sends reflector mail as if it came directly from the poster.
> The forwarder (whatever it is, could be qth.net or arrl.net or one of
> many others) sends it to geo888@cs.com. Cs.com gets the message and
> dispatches mail to the original sender that the account bounced.
>
> The only way to identify the culprit is for the admin to send a
> uniquely identified message to ALL the subscribers on towertalk, one
> at a time, and see which one creates a bounce on geo888@cs.com.
>
> This is a very time-consuming job for the admin.
>
> For all I know this is going on now, maybe twenty at a time.
>
> I've done admin on a SMALL list and had this problem trying to find a
> subscription to an alias so that the wife of a silent key would quit
> receiving email. Took me a week to find the subscription.
>
> 73, Guy.
>
>
> ----- Original Message -----
> From: "Alan C. Zack" <k7acz@cox.net>
> To: <jimjarvis@comcast.net>
> Cc: <towertalk@contesting.com>
> Sent: Sunday, December 05, 2004 7:26 PM
> Subject: Re: [TowerTalk] Bounces replies--- tnx to all
>
>
> > It's been like that for months. With every post you get the
> > geo888@cs.com bounce message. Just something to ignore until its
> > fixed.
> >
> > jimjarvis@comcast.net wrote:
> >
> >> Guys...
> >>
> >> Thanks to all who responded with thoughts on why I see
> >> the bounce from geo888@cs.com.
> >>
> >> In short, the reason is that geo888.cs.com is still registered as a
> >> user,
> >> but the address is no longer valid. Because that's true, he can't
> >> get in to delete himself.
> >>
> >> So....there's some admin work required to eliminate this minor
> >> nuisance. In any case, I appreciate the feedback.
> >>
> >> n2ea
> >> _______________________________________________
> >>
> >> 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
> >>
> >>
> >
> > --
> >
__________________________________________________________________________
> > Alan Zack
> > Amateur Radio Station K7ACZ
> > Las Vegas, Nevada, USA
> > Quality Engineer, The Boeing Company, Retired
> > Aviation Chief Warrant Officer, U.S. Coast Guard, Retired
> > U.S. Coast Guard, Always Ready, Always There
> > Every hour, Every day, Around the Clock and Around the World
> > SEMPER PARATUS
> > http://www.gocoastguard.com
> > http://www.uscg.mil/d14/units/asbp/uscgasbp/
> > DEPARTMENT OF HOMELAND SECURITY
> >
> > _______________________________________________
> >
> > 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: 8
> Date: Sun, 5 Dec 2004 17:33:49 -0800
> From: "Larry Eckstein" <larry5173@comcast.net>
> Subject: [TowerTalk] Re: 50 ft self supporting tower
> To: <towertalk@contesting.com>
> Message-ID: <006d01c4db33$a47ee090$6466a8c0@larrytgm9f3750>
> Content-Type: text/plain; charset="Windows-1252"
>
> Thanks to EVERYONE for your responses!! This website is a great resource!
> I will check with anwireless.
> Like some others here I have talked with US Towers and never even got
replies back from them. Had to call them back every time and even then they
never could tell me they couldn't come up with 80 mph specs.
> Thanks again to ALL.
>
> 73's
> Larry W7YDA
>
> ------------------------------
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> End of TowerTalk Digest, Vol 24, Issue 15
> *****************************************
>
>
_______________________________________________
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
|