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<div class="moz-cite-prefix">Steve,<br>
<br>
This is really cool! I suspect this is going to take off,
especially if TAPR is willing to produce finished boards (after a
little more shakedown and polishing by early adopters). Even if
not, I've been wanting to take my surface mount skills to the next
level, but wasn't willing to try something as expensive and as
complicated as a Hermes board from scratch.<br>
<br>
So, who wants to be in the first wave of early adopters? Can we
get together a group purchase of PCB's and components? Perhaps
there should only be a small number of people in the first wave,
who are willing to build immediately and help refine things for
the next group. I'm willing to help or coordinate things, but I
would need help with understanding and completing the process of
preparing the gerber files for submitting to a PCB vendor. I would
also need someone else to do any modifications that might be
required (since I am not familiar with the tools involved), based
on Steve's replies to the questions below?<br>
<br>
Some quick questions and a request:<br>
<br>
1) The picture you provided showed some small jumper wires, one on
the FPGA board and one on the Hermes Lite board. What were these
required for? If required, I'm assuming the Hermes Lite board can
be modified to remove the need for the jumper wire, correct? Are
there any more jumpers that are not visible?<br>
Any other changes you would suggest for a version 2 board?<br>
<br>
2) Any chance you could provide higher resolution photos of both
the front and back of the Hermes Lite board without the FPGA board
attached?<br>
<br>
Thanks!<br>
<br>
John<br>
AC0ZG<br>
<br>
On 4/13/2014 4:05 PM, Steve Haynal wrote:<br>
</div>
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cite="mid:CAPmdav_4APOmk_spYccAzCWo1opM53ae6yKuH9-O18-uVvhT9w@mail.gmail.com"
type="cite">
<pre wrap="">***** High Performance Software Defined Radio Discussion List *****
</pre>
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<div dir="ltr">Hello List,
<div><br>
</div>
<div>I have been working on a lower cost variant of the Hermes
which I am calling Hermes-Lite. All the details are at </div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="https://github.com/softerhardware/Hermes-Lite">https://github.com/softerhardware/Hermes-Lite</a></div>
<div><br>
</div>
<div>The design is entirely open source and open hardware. The
cost of all materials (including the BeMicro SDK board) is
around $150. The FPGA firmware is a port of the Hermes RTL and
is compatible enough to work with existing Hermes software.
The ADC/DAC is the AD9866 12-bit integrated device intended
for cable modems which I have repurposed as a 0-36 MHz
transceiver. RX/TX tests of my prototype show good
performance. The github site has instructions for listening to
the receiver online. </div>
<div><br>
</div>
<div>I had hoped to have a more polished project before
releasing, but I am starting a new job tomorrow and will have
limited time for this project. Any help on this project or
derivatives is welcome.</div>
<div><br>
</div>
<div>Thank you to all the people at openhpsdr who developed the
Hermes and provided valuable IP to reuse in this project. </div>
<div><br>
</div>
<div>73,</div>
<div><br>
</div>
<div>Steve</div>
<div>KF7O</div>
</div>
<br>
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