Topband: Length of Beverages

2014-07-26 Thread Cqtestk4xs--- via Topband
I'm planning on putting up some Beverages for the fall season...primarily for use on 160. Unfortunately, they have to be taken down again in the Spring for crops. The good news is they can be any length up to around 1200-1300 feet. Many have said that around 880 ft is the sweet spot. Is

Re: Topband: Length of Beverages

2014-07-26 Thread Larry
I'm sure it varies a lot from QTH to QTH, but here, over mostly volcanic ash and sand, I could see significant difference between 800 foot and 1100 foot. I never got around to trying longer than 1100 because I could not work all that I could hear with those. These days, being older and

Re: Topband: Length of Beverages

2014-07-26 Thread donovanf
Hi Bill, Longer Beverages provide narrower beamwidth, which reduces QRM or QRN that would be received through the main lobe of a shorter Beverage. (just like adding elements to a Yagi narrows its beamwidth). A very effective technique for improving the front-to-back performance of Beverages

Re: Topband: Length of Beverages

2014-07-26 Thread donovanf
Hi Bill, I forgot to mention that my 8-circle vertical receiving arrays are specifically built for installation and removal in a single day They're installed on a nearby farm that I have access to only from October through April. The foundations for my 25 foot resonant (not non-resonant

Re: Topband: Length of Beverages

2014-07-26 Thread Mike Waters
On Sat, Jul 26, 2014 at 10:39 AM, donov...@starpower.net wrote: Longer Beverages provide narrower beamwidth, which reduces QRM or QRN that would be received through the main lobe of a shorter Beverage On my bucket list is a system for remotely changing the lengths of my two 2-wire Beverages

Re: Topband: Length of Beverages

2014-07-26 Thread Richard (Rick) Karlquist
On 7/26/2014 2:32 PM, Mike Waters wrote: On my bucket list is a system for remotely changing the lengths of my two 2-wire Beverages between 580 and ~800 feet long. I actually tried this and discovered that any wire beyond 400 feet made no difference whatsoever. This is because I am on