[Milsurplus] NVIS (or not)

[J. Forster]

Hi George,

Patrcia died suddenly about 15 months ago. Her Tactical-Link site is
looked aftere by her partner, Carla.

The ArmyRadios Group on Yahoo which she founded is still very active. I
Moderate it now.

Best,

-John

=================





> First, I am saddened to hear Patricia is a silent key.  I used to be able
> to attend the Winterfest swap meet out in Monterey, CA years ago, and she
> made one of her presentations on NVIS at one of them.  It got me to
> thinking about how little the average ham knows about propagation, and how
> much less many of the so called trained professionals know.
>
>   My first ham contacts were on the 75 meter Novice band back in the early
> '50s, and although we didn't call it NVIS, we all knew that the signal
> went up and then came back down a few miles away out to a few hundred
> miles away.  Changed from day to night, so it had to be ionospheric and
> not ground wave. Now, I asked these NVIS promoters if I did wrong, using
> NVIS before it was invented?  Got some funny looks and no credible
> answers.  As Hue says, the facts are there, always have been there, yet
> no one wanted to pay attention until they were forced to.
>
> 73,
> George
> W5VPQ
>
> ---------- Original Message ----------
> From: "Hue Miller" <kargo_cult at msn.com>
> To: <milsurplus at mailman.qth.net>
> Subject: Re: [Milsurplus] RT-67
> Date: Fri, 24 Jun 2011 22:55:13 -0700
>
> I think that whatever opinion on this appeared on her website was probably
> inspired by an article in a U.S. Army publication. The article was based
> on
> pure unfounded speculation, hard to fathom why when the facts are not
> terribly obscure. -Hue
>
> -----Original Message-----
> From: J. Forster
> Sent: Friday, June 24, 2011 9:43 PM
> To: Hue Miller
> Cc: milsurplus at mailman.qth.net
> Subject: Re: [Milsurplus] RT-67
>
> That site belonged to Patricia Gibbons, now SK.
>
> -John
>
> ==================
>
>
>
>
>>
>>
>> Dave,
>>
>> Here's the page claiming these are NVIS antennas;
>> http://www.tactical-link.com/WWII_NVIS.htm
>>
>> As far as I am concerned, this is dead wrong.  Your description of it
>> being a short, top-loaded, antenna for ground-wave is likely correct.
>>
>> Al
>>
>> On 6/24/2011 8:02 PM, David Stinson wrote:
>>> Please take a look at item 310326038164, a photo of a German
>>> armored vehicle of WWII.  IIRC, this is equipped with an electrically
>>> short,
>>> capacitively-top-loaded antenna for medium-frequency transmission.
>>> I don't remember the exact band used or power levels.
>>> No reason this shouldn't work well for a few miles groundwave.
>>> Can someone point me to details?  I'd like to try some experiments
>>> one of these days.
>>>
>>> 73 Dave S.
>>
>>
>> They authors know the story and they don't want to know different.
>> Just like the RT-67 seller.
>> I believe I read, but unfortunately didn't record where, that the
>> "Sterneantenne" capacitive loaded vertical mast replaced the
>> frame antenna, which was too prone to damage and more expensive,
>> no doubt, to replace.
>> Clue: how do you get NVIS on 1500 kHz in the daytime?
>> -Hue
>>
>>
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>
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