Topband: Monopole Radiation Patterns, takeoff angles etc

[ZR]

Carl has nothing backwards, best do your research the next time.


----- Original Message ----- 
From: "W2XJ" <w2xj at nyc.rr.com>
To: <topband at contesting.com>
Sent: Sunday, May 06, 2012 7:40 PM
Subject: Re: Topband: Monopole Radiation Patterns, takeoff angles etc


>I think Carl may have his time line backwards. In the 20s and early 30s
> many stations used various forms of wire antennae including dipoles and
> various cage designs. During the 30s Dr Brown and colleagues studied and
> tested various vertical radiators and ground systems. The result of that
> work remains the underpinning of most MW radiators and a substantial
> amount of it ultimately became part of FCC rules and standards in many
> other parts of the world. Some stations continued with their wire
> antenna into the 40s and some paid a penalty of having stations moved
> into the natural nulls of a dipole.
>
> On 5/6/12 6:18 PM, Kevin wrote:
>> WHO-AM (1040 KHz) still uses the modified Franklin.
>> Their 50KW covers the entire state of Iowa + during the day and goes
>> international at night.
>>
>>
>> On 05/06/2012 11:31 AM, ZR wrote:
>>> The BCB stations migrated from 1/2 and 5/8 wave antennas, diamond shaped
>>> towers, and mountain tops by the early to mid 30's as they started to
>>> understand how things worked...or didnt.
>>>
>>> Carl
>>> KM1H
>>>
>> -- R. Kevin Stover AC0H
>> _______________________________________________
>> UR RST IS ... ... ..9 QSB QSB - hw? BK
>>
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>
>
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