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Search: Posts Made By: tripelo
Forum: Antennas 25-Jul-2014, 8:34 AM
Replies: 11
Views: 9,959
Posted By tripelo
Stack Bay Antennas w/o Reflector, Twin Lead or Coax?

Thanks GroundUrMast, all good points.



Pips, it seems you are trying to optimize performance, if so:

Without reflectors to help isolate active elements from effects of the transmission...
Forum: Antennas 25-Jul-2014, 1:18 AM
Replies: 11
Views: 9,959
Posted By tripelo
Balun: 4:1 and 1:1

You probably know that PVC only shields twin lead from the weather, it does not electrically shield it. PVC is a lossy dielectric at UHF frequencies, I would not use it continuously close to twin...
Forum: Antennas 24-Jul-2014, 3:18 PM
Replies: 11
Views: 9,959
Posted By tripelo
Stack 4 Antennas: Twin-lead to Coax

The resistance would drop to 100 Ohms if three (300 Ohm) resistive lines were paralleled.

- Four in parallel would be 75 Ohms.

You are writing about an application of Ohm's law: parallel and...
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