I had one of those W9INN antennas steve back in the 80s. It was 113-feet
long and was intended for 160, 80 and 40. It worked terifically well, even
on 160 and Bill was a great guy to deal with. lou
----- Original Message -----
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, July 18, 2010 8:38 PM
Subject: Re: need some input on wire antennas for the Michigan House
> Hi Lou,
>
> Yeah, it has a pair of loading coils. The coil design is similar to
> the
> Alpha Delta's, and the old W9INN antennas, with some enameled wire close
> wound on a pvc form.
>
> The first one I had was 160, 75, and 40 at 124 feet long and I worked
> lot's
> of Stateside and a fair amount of DX with 100 watts on 160.
>
> 73, Steve KW3A
> ----- Original Message -----
> From: "Lou Kolb" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Sunday, July 18, 2010 7:34 PM
> Subject: Re: need some input on wire antennas for the Michigan House
>
>
>> Steve,
>>
>> How does Hypower shorten that 160 meter antenna, with loading coils? Lou
>> ----- Original Message -----
>> From: "Steve Forst" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Sunday, July 18, 2010 7:07 PM
>> Subject: Re: need some input on wire antennas for the Michigan House
>>
>>
>>> Tom,
>>>
>>> I never used the Cobra. Perhaps one of the other Steve's on the list.
>>> Over the past few years I've used 2 of the shortened dipoles from
>>> Hypower
>>> Antenna Company in Pennsylvania. The current one up is full size for
>>> 80
>>> and shortened for 160 with a total length of 164 feet. A 40 meter
>>> inverted
>>> Vee is fed from the same feedpoint.
>>>
>>> Also had a off center type up for a while, but it's unbalanced design
>>> gave
>>> me RF problems causing the SS amp to trip on 80 and 40 meters at
>>> anything
>>> over 400 watts.
>>>
>>> As for the coax loss: Don't get too bent out of shape over it. Of
>>> course
>>> the higher the freq and longer the run, the more it comes into play.
>>> Another consideration for dipoles is the weight and visibility of the
>>> larger coax.
>>>
>>> I currently use Davis RF Bury-flex. Of course it's been several years
>>> and
>>> I'm sure the price has gone up since I bought it.
>>>
>>> 73 and good luck with the move and new set up, Steve KW3A
>>>
>>> ----- Original Message -----
>>> From: "tom behler" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Sunday, July 18, 2010 6:49 PM
>>> Subject: need some input on wire antennas for the Michigan House
>>>
>>>
>>>> Steve:
>>>>
>>>> Well, as usual, you are now causing me to think again on the coax
>>>> issue.
>>>>
>>>> This is why this is such a great list.
>>>>
>>>> On a related topic, didn't you use one of those Cobra lites for a
>>>> while?
>>>>
>>>> If so, what did you think of it?
>>>>
>>>> If you want to respond off list, use:
>>>>
>>>> [log in to unmask]
>>>>
>>>>
>>>> 73 from Tom Behler: KB8TYJ
>>>>
>>>> ----- Original Message -----
>>>> From: "Steve Forst"
>>>> <[log in to unmask]>
>>>>
>>>> To:
>>>> <[log in to unmask]>
>>>>
>>>> Sent: Sunday, July 18, 2010 2:43 PM
>>>> Subject: Re: Need some input on HF wire antennas for the Michigan house
>>>>
>>>>
>>>> Tom,
>>>>
>>>> Colin brings up an interesting point regarding loss, and only you can
>>>> say
>>>> if
>>>> the loss is acceptable in your setup. Below is a link to a online coax
>>>> loss
>>>> calculator.
>>>>
>>>> Choose the type of coax from the drop down menu. Several name brands
>>>> and
>>>> generics are offered. enter your line length, freq. in mhz, load
>>>> swr,
>>>> and
>>>> power output. Then let it calculate your losses.
>>>>
>>>> Don't forget that loss goes both ways: RX as well as TX. There is good
>>>> stuff as well as junk stuff in all sizes. If you save a few bucks
>>>> today
>>>> buy
>>>> buying poor quality coax and then have to replace it in 5 years, it
>>>> wasn't
>>>> much of a bargain.
>>>>
>>>> http://www.ocarc.ca/coax.htm
>>>>
>>>>
>>>> 73, Steve KW3A
>>>>
>>
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