Hello,

On Wed, 15 Dec 2010 15:40:31 -0800, Richard Clark wrote:

On 15 Dec 2010 20:52:22 GMT, Sébastien MEDARD wrote:

There should free software displaying this gray line with UTC time, no?

I'm sure there is - somewhere. GoogleEarth would be an elaborate tool
to accomplish this.

Well... In French we say that it is like using backhoes to move a bucket
of sand...

I found some software here :
http://www.ac6v.com/software.htm#GEO

Need to be tested...

I found the "Receiving Antenna Handbook" quite cheap, but the "Loop
Antenna Handbook" is still expensive. Between $60 to $257... I will try
the cheapest.

Myself, I would not advise spending more than $20. Professional antenna
books barely give more than one section of the first chapter to its
discussion.

I totally agree, I will see what the seller proposes.

I can imagine the teaching class. Everybody with a Collin's in front of
him/her... A one year project to restore completely one of this
legendary radio. I would like that!

There were two to a radio. 40 to 30 hours learning the schematic theory
of operation; and troubleshooting and tuning procedures and 30 to 40
hours in front of the radio. The class was 2 weeks long. Complete
restore unnecessary, of course, as the last class had fixed any problem.
No, we had a data bank of known problems, known solutions, and the time
to debug them averaged over at least 100 students for each problem.



With a good DSP outside (Audio DSP only), can beat every other ones?

Good for filtering, probably tighter than the mechanical filters
(theoretically), but there are many, many other considerations.

I should try to see if there are any OM near the place I live. Could be
interesting to see those old boxes.

Well, many thanks for the basic information you gave me.

Now, I need to use it.

Sébastien.