[TowerTalk] OT: Bonding to Teflon

[Gedas]

One other idea came to mind which I acted on and that was to buy on 
e-bay an inexpensive LNB complete with round plastic cap delivered for 
around $6. I should be getting the dish and feed from directive systems 
and maybe, just maybe I will get lucky and the plastic cap off the LNB 
will be a close match to the OD of the DS feed.

Gedas, W8BYA EN70JT

Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.

On 7/9/2020 5:20 PM, Gedas wrote:
> Gary appreciate the suggestion. I have not decided on a material yet. 
> I have been acquiring a number of different plastics, all uV stable 
> that I plan to test in the downstairs dungeon RF lab. I will be 
> looking for the IL and to see if the RL of the feed changes with the 
> covering in place. Refraction thru the plastic is another concern but 
> I do not have an easy way to test those effects downstairs.
>
> Gedas, W8BYA EN70JT
>
> Gallery at http://w8bya.com
> Light travels faster than sound....
> This is why some people appear bright until you hear them speak.
>
> On 7/9/2020 4:10 PM, Gary K9GS wrote:
>> Or use a different material instead of Teflon.  Something that can be 
>> bonded to.73,Gary K9GS
>> -------- Original message --------From: "Richard (Rick) Karlquist" 
>> <richard at karlquist.com> Date: 7/9/20  3:06 PM (GMT-06:00) To: Gedas 
>> <w8bya at mchsi.com>, towertalk at contesting.com Subject: Re: [TowerTalk] 
>> OT: Bonding to Teflon Build a frame for it and hold it to the frame 
>> witha clamping scheme, using a gasket to make itwater proof.  You can 
>> then glue the frame tothe horn.73Rick N6RKOn 7/9/2020 11:13 AM, Gedas 
>> wrote:> Pardon the OT post but we have so many knowledgeable folks 
>> here I was > hoping I could get a quick answer.> > This is antenna & 
>> RF related so maybe not super far off OT hi-hi.> > I have a 1/16" 
>> thick 3"x3" sheet of Teflon that I need to "glue" to the > front of a 
>> uW horn antenna to keep water, dirt, bugs, etc out of it. Can > 
>> anyone tell me what type of adhesive is known to adhere to Teflon and 
>> is > not too difficult to acquire? TU> > Gedas, W8BYA EN70JT> > 
>> Gallery at http://w8bya.com> Light travels faster than sound....> 
>> This is why some people appear bright until you hear them speak.> > 
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