[hpsdr] SDR Cost Comparisons vs Hermes

[Dan Mitchell]

Jim;

I suggest you re-read the description of the Hermes and study the block
diagram:

 

http://openhpsdr.org/hermes.php

 

You have missed the fact that Hermes will contain not only the function of
Mercury, but also the functions of BOTH the Penelope (or Pennylane) AND the
function of Metis.

This therefore creates a stand-alone TRANSCEIVER
(transmitter/receiver/ethernet interface on ONE board). 

 

73,

Dan, W0IQ

 

  _____  

From: hpsdr-bounces at lists.openhpsdr.org
[mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of jim goldenberg
Sent: Thursday, February 23, 2012 3:45 PM
To: hpsdr at openhpsdr.org; Scott Cowling; Terry Fox
Subject: Re: [hpsdr] SDR Cost Comparisons vs Hermes

 


  

Will the new schematic ever be uploaded to the WIKI, or can a
bill-of-materials be published?

 

The original premise for Hermes was to combine functions to a single board
(lower cost), now look at the picture of the prototype Hermes on the WIKI.
It looks similar to Mercury, major components. I believe Mercury currently
sells for $469, so then why is Hermes double that price. Only major
differences I see are a different ADC, Ethernet PHY and connector, not sure
if there is an Ethernet MAC or royalty based IP MAC core, and a new PCB. Do
those items add up to $450 of added cost? I don't think it should and if
they do then what can we do to reduce those costs? 

 

What am I missing? Maybe the estimate of $900 was just wrong.

Jim, N1KWZ



--- On Thu, 2/23/12, Terry Fox <tfox at knology.net> wrote:


From: Terry Fox <tfox at knology.net>
Subject: Re: [hpsdr] SDR Cost Comparisons vs Hermes
To: hpsdr at openhpsdr.org, "Scott Cowling" <scotty at tonks.com>
Date: Thursday, February 23, 2012, 5:25 PM

***** High Performance Software Defined Radio Discussion List *****

Oops, the N2ADR design uses a TI 5500 ADC, not Analog Devices.  My bad....

If you start off with the one critical piece, the ADC, costing over $100 in
single 

 

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