Topband: 1000 feet 5/8" hardline or 600ohm True Ladder line.

[k1fz]

A calibrated dummy load wattmeter at the far end of the cable can be a real 
eye opener. Power loss distributed 1000 feet would not result in much 
warming.

73
Bruce-K1FZ
www.qsl.net/k1fz/pennantnotes.html




----- Original Message ----- 
From: "Mike Waters" <mikewate at gmail.com>
To: "topband" <topband at contesting.com>
Sent: Saturday, April 26, 2014 11:21 PM
Subject: Re: Topband: 1000 feet 5/8" hardline or 600ohm True Ladder line.


> You're right about the loss being all in the copper center conductor, Jim.
>
> I based that statement on a graph that Owen Duffy had on the old
> vk1od.netsite for solid center conductor. Perhaps I looked at it
> wrong, but I don't
> think so.
>
> There were two charts, one for loss and the other for power handling
> capability. Maybe I have them confused.
>
> However, I did look at Commscope's data sheet. I forget all the details,
> but their loss specs at MF looked really good.
>
> 73, Mike
> www.w0btu.com
>
> On Sat, Apr 26, 2014 at 8:48 PM, Jim Brown 
> <jim at audiosystemsgroup.com>wrote:
>
>> On 4/26/2014 6:17 PM, Mike Waters wrote:
>>
>>> The loss of RG-6 is about the same as RG-213.
>>>
>>
>> Only in an advertising brochure for the RG-6. On 160M, loss is all due to
>> copper, and there's  LOT more copper in RG213 than in any RG6 cables I've
>> seen.
>>
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