Bill,
You are going to like what you end up with even on some of the other
bands. I would think that three 17 foot long guy wires attached to the
tower would have a bad influence on the tribander. In fact that's a very
bad length attached to the tower and under a 20m antenna.
You are not going to need anything other than a box to weatherproof an air
variable capacitor (use a vacuum variable if you have one already), some
wire, a few pieces of PVC and a hose clamp to make it all work. That's
all. Having those 17 foot guy wires attached to the tower isn't going to
hurt you or help you on 160m, but as I said, I think they are hurting you
on some of the other bands. I would replace the guy wire with Phillystran
if it were mine.
73...Stan, K5GO
On Wed, Dec 30, 2015 at 1:06 PM, K4OWR <k2owr@comcast.net> wrote:
> *:::: Understand that even for the top set of guys they are not insulated
> till 17' from the tower. Insulating the others will not be all that easy
> for this once very agile 72 yo who put the tower up all by myself 7 years
> ago. Maybe change to Phillystran? I will also need more specific
> instructions on the hookup....Don't I need something called an "Unun"
> balun?**
> **The radials will also be tough cause the tower is on the edge of some
> very overgrown property that would be a nightmare to move around in. **
> BILL K4OWR
> *
> On 12/30/2015 1:34 PM, Tree wrote:
>
>> Well - this sounds almost identical to the tower I used for 1/2 of my
>> phased array - I think it will work well for 160.
>>
>> You will need to isolate the lower guys with insulators - but that should
>> be pretty easy to do.
>>
>> Remove the 160 meter dipole.
>>
>> Use a gamma match and put down some radials.
>>
>> It will work very well.
>>
>> Tree
>>
>> On Wed, Dec 30, 2015 at 10:20 AM, K4OWR <k2owr@comcast.net <mailto:
>> k2owr@comcast.net>> wrote:
>>
>> *:::: The tower is guyed 3 ways, 3 times, with only the top set of
>> guys broken up by insulators.
>> On top of the 16' mast poking out of the top is a 6 meter 7el 32'
>> boom; then at the bottom of the mast is a 4 el trapped tribander.
>> One end of a 160 full size dipole is anchored at the 85' level,
>> but could be moved to the top of any one of several very high trees.
>> I always figured the 12 guys prohibited any shunt feed arrangement(?)
>> BILL
>> *
>> On 12/30/2015 1:01 PM, Tree wrote:
>>
>>> Bill - your tower sounds like a good candidate.
>>>
>>> What is on top of it? Any wires hanging off of it? Are the guys
>>> insulated near where they attach to the tower? Do the feedlines
>>> come all the way to the ground?
>>>
>>> Tree N6TR
>>>
>>> On Wed, Dec 30, 2015 at 9:56 AM, K4OWR <k2owr@comcast.net
>>>
>>> <mailto:k2owr@comcast.net>> wrote:
>>>
>>> :::: Anyone have actual experience with any of the
>>> commercially available 160 antennas...such as:
>>>
>>>
>>> http://www.dxengineering.com/parts/dxe-160va-1?seid=dxese1&gclid=Cj0KEQiAno60BRDt89rAh7qt-4wBEiQASes2tUOULTlQpNyMARBk4ZWRxw70jODW_FJCuBJ1Td47YMgaAhgQ8P8HAQ
>>>
>>>
>>> http://www.dxengineering.com/parts/csh-ma160v?seid=dxese1&gclid=Cj0KEQiAno60BRDt89rAh7qt-4wBEiQASes2te6Z2l2AXZmKP8i8l_iGeMKA7d7_B5IymHIulbh6Z_MaAlrL8P8HAQ
>>>
>>> OR, what is recommended for a /*reasonable*/ sized vertical
>>> (not a 43' type with matching coil) or requiring a tuner to
>>> match?
>>> Or, a /*simple*/ method of loading my guyed 90' existing tower.
>>> I have lots of room for almost anything.
>>> Tuners on 160, with a LOT of power, always eventually blow up
>>> or catch fire.
>>>
>>> BILL K4OWR
>>> _________________
>>> Topband Reflector Archives - http://www.contesting.com/_topband
>>>
>>>
>>>
>>
>>
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