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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Isolating\s+a\s+TX\s+antenna\s*$/: 4 ]

Total 4 documents matching your query.

1. Topband: Isolating a TX antenna (score: 1)
Author: "Mike(W5UC) & Kathy(K5MWH)" <w5uc@suddenlink.net>
Date: Wed, 12 Aug 2009 16:38:39 -0500
Greetings All: I just finished building a vertical RX array for 160 meters using K7TJR's Hi-Z pre-amps. However, it looks like I am getting some re-radiation from my Inverted L. The nearest vertical
/archives//html/Topband/2009-08/msg00064.html (7,413 bytes)

2. Re: Topband: Isolating a TX antenna (score: 1)
Author: "n4is" <n4is@bellsouth.net>
Date: Thu, 13 Aug 2009 07:27:48 -0400
Mike You did it right, the float part of the inverted L become 1/4 element, and it does not reradiate, before with the ground it was a resonant element. The noise reduction depends on the direction o
/archives//html/Topband/2009-08/msg00067.html (8,139 bytes)

3. Re: Topband: Isolating a TX antenna (score: 1)
Author: "K9AY" <k9ay@k9ay.com>
Date: Thu, 13 Aug 2009 09:40:30 -0500
Mike, Interaction starts to be noticeable when the coupled tower or antenna is roughly 2/3 the size needed for resonance, and increases rapidly as the size approaches resonance. For example, I have a
/archives//html/Topband/2009-08/msg00068.html (8,479 bytes)

4. Re: Topband: Isolating a Tx antenna (score: 1)
Author: "Mike(W5UC) & Kathy(K5MWH)" <w5uc@suddenlink.net>
Date: Thu, 13 Aug 2009 11:06:37 -0500
Wow, I have received numerous comments on my question, and the results are unanimous. That being to let the Inverted L float when in the receive mode. This is fairly easy to implement, and shall be d
/archives//html/Topband/2009-08/msg00070.html (7,234 bytes)

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