[TowerTalk] Stacked 4 El SteppIR's

[Robert Shauger]

Is it possible to do a gain and front to back modeling of the SteppRI
antennas?  Has it been ever been done?

Thanks,
Bob - AI7M


----- Original Message ----- 
From: "Howard Klein" <howk2 at hotmail.com>
To: <kg6i at direcway.com>
Cc: <towertalk at contesting.com>
Sent: Thursday, September 11, 2003 12:28 PM
Subject: [TowerTalk] Stacked 4 El SteppIR's


> Hi John,
> Right you are.  I am out of town and forgot the exact boom picture. I know
I
> was not very disturbed over the boom specs. I actually got my 2nd 4 el up
> Sunday but before I had time to tune the pair I had to leave town. I can
> only say I am extremmely impressed with the top 4 at 75 ft. The lower at
> 40ft (right now) sounds pretty good also. I need to play with the
separation
> and tune the individual antennas when I get home to see how the stack will
> work. It's hard to believe that it can only get better. Good <uck to John.
> 73,
> Howard..K2HK
>
> ----Original Message Follows----
> From: John Farber <kg6i at direcway.com>
> To: k2hk at arrl.net
> Subject: Re: [TowerTalk] Re: TowerTalk Digest, Vol 9, Issue 38
> Date: Thu, 11 Sep 2003 10:22:07 -0700
>
>  > Howard and all,
>  >
>  > I was just about ready to order a pair of those 4el SteppIR yagis when
I
>  > read on their web page that the 32ft boom was only 1-3/4 inch diameter.
>  > Yikes!  My KT-34XA has a 32ft x 3in boom and I don't think it could
> manage
>  > with less.  Granted, the SteppIR boom has a bit more wall thickness -
but
>  > wall thickness just can't make up for lack in diameter (if you believe
> the
>  > moment formulas in my old college statics textbook).
>  >
>  > Howard: After putting two of those beauties up, what do you think of
that
>  > skinny boom ???
>  >
> Just put mine up Sunday. The boom tapers from 2.5 inches down to 1 3/4 in
at
> the ends onlyl Is fine, Plus uses a truss system. Is a BIG antenna too,
anad
> heavy, 82 lbs. It seems to play just fine. GL, 73 John
>
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