[Antennas] Beveredge made of copperweld

[Igor Sokolov]

Thanks guys,
My friend is going to use copperweld with pretty thin layer of copper and he 
is concerned about skin effect depth. On the other hand, having modeled 
beverage made of steel in MMANA the program predicts inferior F/B and 
higher angles of radiation then copper. I think that these predictions are 
wrong because MMANA is based on Mininec where one of the limitations is 
height of antenna above the ground.

73, Igor UA9CDC

----- Original Message ----- 
From: "David Robbins" <k1ttt at arrl.net>
To: "'ANTENNAS-Mailman'" <antennas at mailman.qth.net>
Sent: Saturday, November 08, 2014 4:44 PM
Subject: Re: [Antennas] Beveredge made of copperweld


> Yes, all my wire antennas, including Beverages are made with copperweld.
> Plain copper is too weak to stand up to ice and falling branches here. 
> get
> good copperweld, the stuff I use is IMSA Spec 28-3 10ga line wire which is
> 30% copper and has hdpe insulation... very tough stuff and much more 
> copper
> than cheap plated steel.  The insulation helps protect the copper and also
> means that if a branch or tree comes down and breaks a support the antenna
> still works.  unfortunately here in the states that wire must be made to
> order now as all the manufacturers have stopped normal production, maybe 
> it
> is easier to find in other places.
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt at arrl.net
> web: http://wiki.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://k1ttt.net
>
>
> -----Original Message-----
> From: Antennas [mailto:antennas-bounces at mailman.qth.net] On Behalf Of Igor
> Sokolov
> Sent: Saturday, November 08, 2014 06:09
> To: ANTENNAS-Mailman
> Subject: [Antennas] Beveredge made of copperweld
>
> I wonder if someone ever had beverege RX antennas made of copperweld 
> (steel
> covered with thin layer of copper). Some modeling software shows that they
> are much inferior to antennas made of copper but are such a bevereges 
> still
> practical?
>
> 73, Igor UA9CDC
>
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