[AMRadio] LINK COUPLING)

[W5AMI]

Clarification; the new antenna will be 1 & 1/4 wave on 75 meters.  I am
hoping it will also work okay on 160 meters at that length.  Overall, it
will be around 304 feet.

73
Brian



On Thu, Sep 19, 2013 at 8:11 PM, W5AMI <ars.w5ami at gmail.com> wrote:

> Hi Larry,
>
> Well, the wire I had, which is now just a messy bundle, was a half wave
> dipole cut for 75/80 meters, fed direct with 450 ohm ladder line from the
> tuner.  I have two large ceramic feed thru insulators to bring it into the
> house, and the home brew tuner is mounted on the wall right where the
> insulators are.
>
> I could tune anything for 160 to 20 meters with pretty good success.  20
> and above was very touchy, since the coil and caps are so big (inductance &
> capacitance).  I'm sure on 160 it was not very efficient due to the antenna
> being cut for 80 meters, but it would tune just fine.  80 and 40 were a
> breeze.  If I went to 40, I didn't even have to change taps on the coil,
> just tweak C1 a little.
>
> Now that my old antenna is down, thanks to my 200+ lbs great dane, I am
> going to put up a 1 & 1/4 wave doublet and feed it the same way.  Been
> wanting to try one for a long time, and my dog has now given me reason to
> do so.  I have lots of property here on the farm, but also lots of trees in
> the way.
>
> 73
> Brian / w5ami
>
>
> On Thu, Sep 19, 2013 at 6:27 PM, Larry Szendrei <ne1s at securespeed.us>wrote:
>
>> On 9/18/13 1:13 PM, W5AMI wrote:
>>
>>> Good point Don, and thanks as always...
>>>
>>> Here is a photo of my homebrew tuner I built I long time ago.  It is
>>> mounted to the wall right where the feed through insulators come in (just
>>> below).  I think I sent you a photo of the coil several years ago before
>>> I
>>> made this thing up.  C2 on the right simply makes it easier to adjust the
>>> link coupling.  I actually had to remove several plates from C1 since it
>>> was way more than I needed.  The clock is not part of the tuning
>>> system...
>>> I call this "The Ugly Tuner", but who cares, as it works great.
>>>
>>> http://w5ami.net/images/tuner.**JPG <http://w5ami.net/images/tuner.JPG>
>>>
>>>
>>>  Brian, if you don't mind, describe the wire you're feeding and all the
>> bands for which you've had success using the system.
>>
>> Thanks!
>> -Larry/NE1S
>>
>
>
>
> --
> "Who feeds a hungry animal feeds his own soul" - Charles Chaplin
>
>


-- 
"Who feeds a hungry animal feeds his own soul" - Charles Chaplin