[hpsdr] Active Antenna

[Richard Stasiak]

Hi Henry

It's interesting how the various areas of amateur radio  
experimentation overlap.  I brought up the item about the active  
antenna project just to put in some filler into the "show and tell"  
segment of teamspeak and was surprised at the interest.

The construction of the active antenna kit is going well.  I have the  
power supply completed and have populated the antenna amplifier board.  
The amp board is working and I want to make a few measurements of it's  
performance before I install it in the enclosure and move it outside.   
I will keep the list informed on how it is working and my opinions of  
it.

As usual, with Jack Smith's kits everything is first class.  The  
components, boards and documentation is right up with the best of them.

I would encourage you to contact Jack directly and ask him if you can  
get just an amp board and components. He may be open to  this.  I do  
know that he has had an enthusiastic response from the ham community  
to this project.

For everyone who is wondering what this is about.  Here is a link to  
website for this active antenna.

http://www.cliftonlaboratories.com/z1501_active_antenna.htm

BTW there is a wealth of knowledge and information that Jack has  
shared with the amateur community on his website.  Well worth digging  
into.

73

Rick ve3mm


On 20-Mar-10, at 6:39 PM, Henry Vredegoor wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> Hello All, (Rick, Phil),
>
> Listening to the latest Teamspeak and being temporarily very  
> restricted wrt. antenna's, the subject of  "Active Antenna's" in the  
> conversation between Rick VE3MM / Phil VK6APH immediately caught my  
> attention.
> I studied the website of Clifton Laboratories and found a lot of  
> interesting info on it.
> I  already was thinking about building a design something like  
> described in:
>
> http://home.earthlink.net/~christrask/Complementary%20Push-Pull%20Amplifiers.pdf
>
> Looks similar wrt. output stage, input stage is different.
> The design by CL looks a lot more robust and tweaked HF wise though.
> Unfortunately Jack currently doesn't sell the active antenna as a  
> board + parts kit, the kit as offered is too expensive for me.
> Would be interested in the results in combination with Mercury.
>
>
> 73's,
>
> Henry.
>
>
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