Re: Topband: Stacked verticals - followup

2013-09-11 Thread HAROLD SMITH JR
Hello Dave.
Years ago, 70 or so. I was brought up in Marshall, MO. Television was't around. 
We listened to WHO, KCMO and KMOX most of the time. My folks had a BIG 
RCA Console with many metal tubes and covered BC, and 2 SW bands. Sure 
wish I had it now. 

73  Price W0RI



We have a Franklin antenna at WHO, 1040 KHZ, here in Des Moines.  I've been 
told it is one of the few remaining in the country.

73. . . Dave
W0FLS
- Original Message - From: "Bill Cromwell" 
To: 
Sent: Tuesday, September 10, 2013 12:34 PM
Subject: Re: Topband: Stacked verticals - followup


> Hi Ed,
> 
> The engineer at WTIC responded. That station does not have a Franklin antenna 
> but has "series fed halfwave" during the day and switches in a second one at 
> night, phased to change the radiation pattern. He also told me that their 
> 'sister station', KDKA in Pittsburgh, does use a Franklin antenna. Some 
> members near Pittsburgh may want to roll by for a peek at it.
> 
> 73,
> 
> Bill  KU8H
> 
> 
> On 09/06/2013 04:13 PM, Edwin Karl wrote:
>> There are several interesting articles if you Google "Franklin Antenna"
>> they are mechanically BIG and require feeding ingenuity (hams are known
>> for this feature ...) but are stacked verticals, note- phase the top element
>> to avoid cancellation.
>> 
>> If memory serves me right WTIC in Hartford phased two of these puppies,
>> but it's been a long time ...
>> 
>> 
>> 73!
>> 
>> ed k0kl
>> _
>> Topband Reflector
>> 
> 
> _
> Topband Reflector 

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Topband Reflector
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Topband Reflector


Re: Topband: Stacked verticals - followup

2013-09-11 Thread David Raymond
We have a Franklin antenna at WHO, 1040 KHZ, here in Des Moines.  I've been 
told it is one of the few remaining in the country.


73. . . Dave
W0FLS
- Original Message - 
From: "Bill Cromwell" 

To: 
Sent: Tuesday, September 10, 2013 12:34 PM
Subject: Re: Topband: Stacked verticals - followup



Hi Ed,

The engineer at WTIC responded. That station does not have a Franklin 
antenna but has "series fed halfwave" during the day and switches in a 
second one at night, phased to change the radiation pattern. He also told 
me that their 'sister station', KDKA in Pittsburgh, does use a Franklin 
antenna. Some members near Pittsburgh may want to roll by for a peek at 
it.


73,

Bill  KU8H


On 09/06/2013 04:13 PM, Edwin Karl wrote:

There are several interesting articles if you Google "Franklin Antenna"
they are mechanically BIG and require feeding ingenuity (hams are known
for this feature ...) but are stacked verticals, note- phase the top 
element

to avoid cancellation.

If memory serves me right WTIC in Hartford phased two of these puppies,
but it's been a long time ...


73!

ed k0kl
_
Topband Reflector



_
Topband Reflector 


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Topband Reflector


Topband: The Quest to save AM radio

2013-09-11 Thread Ken Claerbout
"Exactly right. Isn't small government wonderful?" That's really not the 
problem. Many federal agencies, including the one I work at, have plenty of 
money and personnel. It's more a function of priorities and who sets them.

Years ago when I was in a Master's program, one of the courses I took was 
Telecommunications Law taught at the George Mason University School of Law. It 
was taught by an adjunct professor who was an attorney at the FCC. I was the 
only engineer in the class. It was a fantastic class, the best one of the 
program! One of the things we looked at was expanding broadband access in the 
US. BPL was prominent at the time. I remember trying to make the case about its 
interference potential to existing services and I was basically told I hear 
you, your right, but you are barking up the wrong tree. It was clear many of 
the decisions were being made by policy types and not by people that understood 
its implications, especially the technical part. If BPL was going to be 
defeated, it would happen because it wasn't financially viable, not on 
technical merits, because it harmed existing services. Who could be against 
greater broadband access for the public? Are other services like guys with t
 heir ham radios and AM broadcast stations (who listens to AM) going to trump 
that objective?

I'm more dubious about greater enforcement than some it appears. It's an uphill 
battle on many fronts. Aren't there powerline RFI cases that have gone 
unresolved for years because the FCC won't step in or won't enforce their own 
standards? Besides, how long have guys like K1MAN and KZ8O been on double 
secret probation, and nothing can be done about them? 

Ken K4ZW
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Topband Reflector