Okay...
So what I just read from the link you sent, if I take and put up a center fed
Zepp with 66 feet on each side, fed with 450 open line and assume no loss from
the tuner or balun that antenna won't make a even halfway decent multiband
antenna?
Mike
Sent from my iPhone
On Apr 8, 2011, at 4:33 PM, Steve Hunt <steve@karinya.net> wrote:
> Mike,
>
> Yes, it's a very popular "Ham Myth" - not helped by various articles in QST.
>
> TLW is the software supplied by ARRL with the Antenna Book. It
> calculates the losses and impedance transformations for various types of
> feedline, given the load impedance. It typically underestimates losses,
> and I would normally use the VK1OD on-line calculator in preference to
> it, but that doesn't include a model for 600 Ohm line whereas TLW does.
>
> Here are the calculated losses for various types of line - all 110ft
> long and at 1.9MHz - when terminated in 11-j930 Ohms:
>
> TLW, ARRL "generic" 600 Ohm line: 2.6dB
> VK1OD, Wireman 551 ladderline : 6dB
> VK1OD, Wireman 551 ladderline (wet): 8.2dB
>
> Remember this is all at 160m !!!!
>
> If you'd like to know more, take a look at this review of the QST
> article "The Lure of Ladder Line":
> http://vk1od.net/transmissionline/LOLL/
>
> 73,
> Steve G3TXQ
>
>
>
> On 08/04/2011 20:58, Mike Bryce wrote:
>> Don't shoot me!
>>
>> But I always read that open line feed was lossless.
>>
>> Mike
>>
>>
>> Sent from my iPhone
>>
>> On Apr 8, 2011, at 3:42 PM, Steve Hunt<steve@karinya.net> wrote:
>>
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