You're right on hard line and what it is. For dipoles, ladderline is great.
I don't know anyone who's ever buried it but it's possible. Problem is, you
can't put ladder line close to metal or else. It really is the way to go
though.
----- Original Message -----
From: "Colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, November 27, 2007 11:43 AM
Subject: Re: coax and what to run
> no, latter line is not hard line.
> Latter line is two wires strung side by side with separators every couple
> inches to keep them an exact distance apart.
> This type of feed line exhibits something around 450ohms of impedance.
> Hard line is, from what I understand, similar to a typical coax with a
> center conducter, a dialectric and an outer shield.
> I have never seen a peace of hardline, so i have no idea if this is
> correct,
> but I guess it is since they use regular pl259, SMA and N type connecters
> with hardline.
> I am guessing that hard line is also around 50ohms impedance.
> The kind of latter line you can get these days is good stuff, all made out
> of plastic and well shielded...its fairly cheap too I believe and would
> make
> a great feedline for HF.
> I am not sure, but you can probably get latter line with coating that can
> withstand being barried. Its easy enough to use a balun at each end of
> your
> latter line to convert back to 50 ohms to run to the radio and antenna.
> That said, I believe you have an antenna tuner that can be used with
> latter
> line right off the back right?
> That might be your best alternative.
> If you don't have the tuner, then a simple 4 to 1 balun on each end will
> suffice.
> latter line, as was stated before, has very little loss over long
> distances.
> The only problem is, that it becomes a part of the radiating antenna, so
> some have had trouble with RFI and so on from that type of feedline....I
> think though, that if you use baluns, this should help to reduce any RFI
> problems.
> 73
> Colin, V A6BKX
> ----- Original Message -----
> From: "Gery Gaubert" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, November 27, 2007 7:27 AM
> Subject: coax and what to run
>
>
>> Thank s f or al l the info on coax
>> cable. I have some answers now. I want to use the tower for mostly hf
>> antennas. Som dipoles and probably a g5rv. Maybe a Carolina Windum. I
>> have the uhf antenna on the house about 20 feet up and it sems to be
>> working for the very few times I use it. I am more interested in the
>> 10-160 meter bands. I may eventually want to work some on 6 meters but
>> I do't have a radio for 6 right now.
>> =20
>> I went on dxengeneering's website andfound ladder line. Is that what
>> hams refer to as hard line? =20
>> =20
>>
>>
>>
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> 11/26/2007 10:50 AM
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>>
>
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