You can order a board set from PI4CC I think...I am not sure what they
used for the combiner circuit. A set of board for the 9 antennas, the
combiner and the switchbox was $65.00 us and they include one extra of
each board.
W0MU
On 3/2/2020 7:35 PM, Edward stallman wrote:
Thanks Steve for another great video on the YCCC 9 circle . I would
like to have one of Steve's combiner boards and if I remember
correctly , the folks that make the boards have a 3 board minimum . If
someone thinking of placing a order please let me know , I only need
one .
Thanks Ed N5DG
On 3/1/2020 4:22 PM, VE6WZ_Steve wrote:
Just like some guys enjoy woodworking and making furniture that they
may not really need, I like to build radio things just for the fun of
the project even though I may not really “need” it. For three years
I have been using the original 9 circle RX array kit that I bought
from DX-engineering, and it has performed well, but I wanted to build
my own and add my own design tweaks.
Using KiCad, I have designed and built a 9 circle RX array combiner
with a 2N5109 pre-amplifier integrated onto the same board.
The phase/combiner circuit and direction switching is the same as
that designed by John W1FV which was developed with the YCCC and
marketed by DX-engineering (no longer sold). The pre-amplifier is the
2N5109 circuit developed and refined by Larry W7IUV.
I made a YouTube video to show what I did. I know some guys may not
like watching videos, but I spent my professional career writing
technical papers and I have no interest in doing that anymore (I am
NOT an engineer, I am a geologist). I can make a video pretty quick
and cover most of the basics.
In the video I describe the board layout and explain the basics of
how the combiner works. I talk about the basic construction methods I
use, but this is NOT a step-by-step "how to build it" project. If you
want to build one of these, please carefully read and understand the
great documentation that was provided by the YCCC (link provided) so
you can build the transformers and wire things correctly. This video
is only meant to share what I did and provide anyone interested with
the PCB file if they want to build their own.
On the YouTube page I have a link to the KiCad PCB file if you want
to order your own boards (I order my boards from OSH park) and a link
to an EXCEL file for a parts list BOM.
YouTube video here: https://youtu.be/utyJt_Clp3M
<https://youtu.be/utyJt_Clp3M>
73, de steve ve6wz
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