[hpsdr] Will the Angelia blank PC Board be available...?

[Berndt Josef Wulf]

G'day Joe,

only two antennas, loop and sense, are required with an automatic
direction finder (ADF) as used in aviation and navy. Why wouldn't it be
possible to implement using a dual channel software defined radio?

73, Berndt
VK5ABN

On Mon, 2012-09-10 at 07:46 -0600, Joe Martin K5SO wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> 
> On Sep 10, 2012, at 12:19 AM, RW Mail List wrote:
> 
> > ***** High Performance Software Defined Radio Discussion List *****
> >  I like the idea that Angelia with two antennas, will be able to reduce QRM/QRN and be used as a signal direction finder.
> > 
> 
> Roderick, 
> 
> Keep in mind that to perform direction finding one needs at least three independent receivers/antennas.  Therefore the Angelia board with only two coherent receivers will not be able to perform direction finding functions by itself.  The earlier-mentioned "daughterboard" approach for Angelia to add an additional ADC for a third receiver is likely not going to be a practical approach due to lack of header connections to be able to support such a board on the Angelia PCB.  At least that's my understanding of the situation.
> 
>  I know that Abhi is working on a design for a four-ADC receiver board for the Atlas bus that would do a great job for that application but it is still in the very early design stages presently I believe.  The board will almost certainly be a receive-only board but could be used with a Penelope/PennyLane transmitter, of course.  
> 
> 73,  Joe K5SO
> 
> 
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