I will install the spark gaps next to an 8' ground rod next to the house
entrance...will leave the bleeder resistors in place and will probably
install also a knife switch to dump the feeders directly to the ground rod.
Now another thread....I plan on replacing my feeders from the house entrance
with new homebrew feeders, since my existing is several wires spliced
together.....I have on hand no 14 and no 16 copperclad single strand wire
and stranded no 14 450 ohm commercial windowed line.
Current plans are to cut the webbing out of the 450 ohm windowed line and
use either grey small diameter pvc pipe or fiberglass electrical fence posts
for spreaders
The windowed line I can cut and assemble as I raise the antenna's
feedpoint...
Feeders from house entrance to station will remain 450 ohm line...
What are you guys using?
----- Original Message -----
From: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Monday, April 14, 2008 8:22 AM
Subject: Re: [TenTec] Ten Tec 238A settings?
> Actually no. On the other hand, mounting it in a box or suitable
> enclosure
> protects the switch but then one has to deal with the antenna leads
> getting
> and out of the box along with a suitable ground. Mine is located on a
> metal plate at the base of the tower, just before the feedline turns to
> enter the house. I run the balanced feed all the way to the tuner. The
> spark plug arrestor is in the same location as the switch near the base of
> the tower.
>
> Yes, it does require going outside to ground the antennas. I use a DPDT
> switch that disconnects the feedline from the entrance to the house and
> grounds the antenna feedline at the same time.
>
> The coax feedlines and rotor control cable all have Polyphaser protection
> systems at the same location. All at the base of the tower before the
> lines enter the house.
>
> 73
> Bob, K4TAX
>
>
> ----- Original Message -----
> From: "Ron Zond" <k3miy@csonline.net>
> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> Sent: Monday, April 14, 2008 10:04 AM
> Subject: Re: [TenTec] Ten Tec 238A settings?
>
>
>>I assume the knife switych is protected against the weather otherwise.
>>
>> Ron
>> K3MIY
>>
>> -----Original Message-----
>> From: tentec-bounces@contesting.com
>> [mailto:tentec-bounces@contesting.com]On Behalf Of Bob McGraw - K4TAX
>> Sent: Monday, April 14, 2008 10:56 AM
>> To: Discussion of Ten-Tec Equipment
>> Subject: Re: [TenTec] Ten Tec 238A settings?
>>
>>
>> Yes, but with a knife switch one can't operate and be protected at the
>> same
>> time. With the spark plug arrestor operation continues with protection.
>> The knife switch is best when one is away from the station. That
>> presumes
>> one does not forget to close it when securing the station. Also, the
>> knife
>> switch should be located outside of the structure for added safety.
>>
>> 73
>> Bob, K4TAX
>>
>>
>> ----- Original Message -----
>> From: "Lyle Dunlap" <qskqrq@grics.net>
>> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
>> Sent: Monday, April 14, 2008 7:15 AM
>> Subject: Re: [TenTec] Ten Tec 238A settings?
>>
>>
>>> One can use all sorts of spark plugs & things to drain off those little
>>> sparkies mother nature puts out, however its hard to beat a DPDT heavy
>>> knife
>>> switch.
>>> For over 25 years I had a 3 wire Rhombic up 375 ft on a leg and with
>>> 4500
>>> feet of wire basically in the form of a capacitor you can have your own
>>> fireworks display. Go with a knife switch.
>>>
>>> Lyle W9FCX
>>>
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>
>>
>>
>> _______________________________________________
>> TenTec mailing list
>> TenTec@contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>>
>>
>> _______________________________________________
>> TenTec mailing list
>> TenTec@contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|