No, the Junior version states that it will resonate on 75 meters.  

I looked at the site last night and noted that the FAQ for regular version says it can work on 160 and it resonates at 2.8Mhz.  I sent a message to Joe asking if that was a typo,.  
He didn't say it was, just that his resonates around 2.2MHz which he uses for MARS.  But he has his up 60 feet.  I suspect since I can't get the ends more than fifteen feet off the ground, it will resonate differently than his.


----- Original Message ----- 
From: Matthew Chao 
To: [log in to unmask] 
Sent: Monday, August 17, 2015 10:33 AM
Subject: Re: Question About Cobra Ultralite Senior Antenna


Hi, Tom.  I have the Junior version, and have no problems on 
40.  However, I can't tune up on the ACW portion of 80 meters with 
the radio's built-in auto tuner nor the KT100.  Assume you have a 
balun at the end of your laderline?

Other than the above, I don't have any ideas for you.--Matt, N1IBB.

t 10:13 AM 8/17/2015, you wrote:
>Hello, everyone.
>
>
>
>I guess this question is best directed to those who are familiar with the
>Cobra Ultralite Senior antenna made by K1JEC, but I'll take thoughts from
>anyone who is interested in replying.
>
>
>
>Several years ago, I purchased a Cobra Ultralite Senior antenna from K1JEC,
>or Granite State Antenna in New Hampshire.  My main reason for making the
>purchase was to have operating capability on 80 and 160 meters.  The antenna
>itself is up about 35 to 40 feet, and is strung between trees on my
>property, and on a neighbor's property.
>
>
>
>The antenna works well on 80 meters, and much of 160 meters, when tuned with
>my MFJ 998 auto-tuner.
>
>
>
>However, I have never been able to get it to tune on 40 meters.  In
>addition, the tuning and performance are questionable at best on 20, 15, and
>10 meters.  In fact, one problem I have noticed recently is that when tuning
>it on 20 meters, using my MFJ998 auto-tuner and my ALS600, I actually get RF
>coming through the PTT switch on my Heil gold line mic.  This, of course, is
>not good.
>
>
>
>All of this is prompting me to try to correct the situation.
>
>
>
>Several months ago, I contacted Joe at Granite State Antenna in New
>Hampshire, and he suggested that I make sure the excess ladder line is
>coiled in several loops, and is off the ground. I just double-checked this,
>and it is what we did when we installed the antenna.
>
>
>
>A ham friend of mine has suggested that I cut off the excess ladderline, and
>see if that helps.
>
>
>
>I am reluctant to do this, because the instructions say not to do so, and it
>is one of those steps that will be difficult to reverse.
>
>
>
>I am thinking of purchasing some RF chokes to help with the issue, bbut I
>still think there is a basic problem with my instalation.
>
>
>
>Fortunately, my Alpha Delta DXCC tunes well on40 through 10 meters, but it
>would be nice if I could get the Cobra to do the same.
>
>
>
>Any thoughts on this would be appreciated.
>
>
>
>Tom Behler: KB8TYJ
>
>