Towertalk
[Top] [All Lists]

Re: [TowerTalk] m2 40M4LLDD + 20m add on

To: W2RU - Bud Hippisley <W2RU@frontiernet.net>
Subject: Re: [TowerTalk] m2 40M4LLDD + 20m add on
From: Rich Hallman - N7TR <rich@n7tr.com>
Date: Wed, 10 Jul 2013 18:01:50 +0000
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I have a coil version being built right now to upgrade a new 40m4lldd that has 
not been installed yet. We have high winds where I live and mike and team has 
done a great job in this design.  Bandwidth is the same as the linear loading 
and he extends the boom by 4 feet I think.    Contact Jason at m2 for a quote.  
 The option is not on their web, but they will offer the upgrade if asked.  I 
also have them building a 80m2 for me that is going on the hdx-689 that I just 
finished installing.   Mike did comment that the 4 ele 20 add on for the coil 
version was not ready yet.

Thanks,    Rich. N7TR

On Jul 10, 2013, at 9:38 AM, "W2RU - Bud Hippisley" <W2RU@frontiernet.net> 
wrote:

> I'm one of those guys up north.  Ice and/or wet snow on the linear loading is 
> a disaster; it will move the SWR at the "fair weather" minimum SWR point far 
> enough in either direction to activate the Alpha 99 high-SWR shutdown circuit 
> and generally cause deterioration of various electrical parameters of the 
> beam.  That said, I'm very, very pleased with the mechanical aspects of my 
> 40M2LL (and by extension, the 40M3LL), so I'm hopeful the coils will be 
> offered as a retrofit to existing LL owners.
> 
> Bud, W2RU
> 
> I'm looking forward 
> On Jul 10, 2013, at 9:04 54AM, Bob Gibson <w5rg@yahoo.com> wrote:
> 
>> I talked with Mike about a year ago and he said they were coming out with a 
>> coil design for the 40 meter beam and make it a option that you can change 
>> from linear loaded element to a coil design..the new antenna was going to be 
>> longer also...they were doing this because some of the guys who live up 
>> North were having trouble with the ice in the winter..I don't plan to change 
>> mine out..it works fine just like it is..Bob
>> 
>> Bob Gibson W5RG
>> 
>> ________________________________
>> From: Jim Thomson <jim.thom@telus.net>
>> To: towertalk@contesting.com 
>> Sent: Wednesday, July 10, 2013 3:44 AM
>> Subject: [TowerTalk] m2  40M4LLDD  + 20m add on
>> 
>> ## Flash... apparently m2 is now making a COIL  version of their 40M4LLDD.   
>> The coils are slick,  machined
>> from thick wall AL tubing.   The ends of the tubing are not machined in the 
>> lathe.  That allows for a superb
>> electrical + mech connection at each end of the coil.   Plus the uh of each 
>> coil is consistent.   The LL  tubing
>> was also the truss for each ele, so presumably  dacron rope etc, would have 
>> to be used with any coil version.    
>> 
>> Later....... Jim  VE7RF
> 
> _______________________________________________
> 
> 
> 
> _______________________________________________
> 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

<Prev in Thread] Current Thread [Next in Thread>