[TenTec] Trading radios

[Rick - DJ0IP / NJ0IP]

We all did, Jim.  Especially me, and a lot of what I learned was from
reading your excellent work.  Thank you.

One thing I learned is, when it comes to common mode current, the difference
between QRP and high power is huge.
Common mode current just isn't an issue when running QRP.

Often, weight is an issue. 
The antenna needs to be as high as you can possibly get it in order to have
a decent signal with QRP.  
Weight can be counter-productive.
A balun in this case adds unnecessary weight. 

In the past 35 years I have operated from about a hundred different
locations using a fiberglass fishing pole, then later when they became
available, purpose designed (for ham radio) fiberglass poles.  The radio was
always an Argonaut 509 and occasionally the matching 405 amp running about
25w. I never once encountered problems. 

Later, running 100w out of my RV, I did sometimes have problems.
Baluns and chokes were essential.
Running 1kW from the RV always resulted in many nasty things, even serious
problems such as the gas heating switching off and on.  Excellent baluns and
chokes as per Jim's instructions are a blessing and a MUST.

73 - Rick, DJ0IP
(Nr. Frankfurt am Main)


-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Jim Brown
Sent: Monday, June 02, 2014 10:22 AM
To: tentec at contesting.com
Subject: Re: [TenTec] Trading radios

On 6/2/2014 12:50 AM, Rick - DJ0IP / NJ0IP wrote:
> BTW, others such as W7EL in his paper on "Baluns, what they do and how 
> they do it", agree with me on this point.

W7EL's published work on this is at least 25 years old. Both of us have
learned a lot in 25 years.

73, Jim K9YC
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