Colin,

If you are prepared to have your head spin, here is more than you ever 
wanted to know about the theory of the Cobra Ultralite:

http://www.eham.net/forums/Towertalk/6307

73, Steve KW3A
----- Original Message ----- 
From: "Colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, April 01, 2008 1:43 PM
Subject: Re: Cobra antennas (was Re: Amplifiers)


> what is the difference between the g5RV and the cobra antennas?
> I know how a g5RV is designed, but how is the cobra designed?
> 73
> Colin, V A6BKX
> ----- Original Message ----- 
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, April 01, 2008 11:04 AM
> Subject: Cobra antennas (was Re: Amplifiers)
>
>
>>
>> Howard,
>>
>> I've been using the Cobra Ultralite Senior for almost three years, and
> like
>> it very much.  Mine plays very well on 80 and 40, and somewhat well on 20
>> and 17.  I've tried it on 10, and I know it works, but don't really know
> how
>> well as I haven't seen much 10-meter activity here in New England.  On 
>> 80,
>> where it seems to work best, people give me the same S-meter readings as 
>> I
>> give them, which I realize isn't necessarily a good indication of how
> things
>> are working.  On some of the other bands, I tend to hear better than
> people
>> hear me, which makes me suspect that maybe the antenna isn't working as
> well
>> as it should.
>>
>> It's an easy antenna to put up, and I have mine strung between two trees,
>> about 20 feet off the ground.  It might work better if I could raise the
>> center up another 30 feet or so, but I haven't figured out a good way to
>> support the center.  Raising the center might also make it play better on
>> the higher frequencies, but I won't know unless and until I try it.  I'm
>> quite sure I could do better with a beam on a tower, but I have to say
> that
>> this antenna does quite well for a one-size-fits-all antenna.
> Incidentally,
>> I haven't had to repair it even though we get some 50MPH winds during the
>> winter.
>>
>> Steve
>>
>> ----- Original Message ----- 
>> From: "Howard Kaufman" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, March 31, 2008 18:30
>> Subject: Re: Amplifiers
>>
>>
>> > John I am very interested in the cobra, what do you think of yours?
>> > I'd like to use it on 160 through 10.
>> >
>> >
>> >
>> >
>>
>>
>>
>> -- 
>> No virus found in this incoming message.
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> 5:38 AM
>>
>>
>
>
>