High Performance Software Defined Radio

An Open Source Design

Status

License NCL
Author Kevin, M0KHZ
Available
Sold out from TAPR. Commercial vendors

Hermes available from Apache Labs. See the Apache Labs page for details. Note Apache Labs is based in India.

Updates

October 1, 2012 Hermes available from Apache Labs. See the Apache Labs page for details. Note Apache Labs is based in India.

July 13, 2012 Hermes order page is open. See the TAPR page for details. Must order before July 25, 2012.

March 18, 2012 Hermes interest list is open. See the TAPR page for details. To show your interest, you can sign up here: www.hamsdr.com (Note: Look under the tab after you log in)

August 10, 2010 Decision to use ethernet interface versus USB2 interface

November 20, 2009 Mercury and Penelope code in one FPGA successful.

Hermes - A DUC/DDC Transceiver

Hermes picture

About the Hermes Module

Following the outstanding success of Mercury and Penelope, and while investigating the verilog code for both, I had the insane idea of merging the verilog code of Mercury and Penelope into a single fpga! I played around with this idea for a while and the more I thought about it the more I liked the idea.

So here is the proposal, to develop a single board HPSDR based on the hardware of Mercury and Penelope and a single large fpga.

This board would have PC connectivity by USB. I'm planning to squeeze this all onto Euro Card sized PCB (100 x 160 mm), and if I utilize both sides I might even have room for a Pennywhistle type PA.

Basic specs so far (nothing cast in stone) Fpga EP3C25Q240C or EP3C40Q240 (I think this is the largest without BGA pin out)

Mercury receive chain
Penelope transmit chain, possible small change to gain distribution
(Dropped August, 2010) USB2 to PC data transfer
ethernet interface to PC
Pennywhistle PA (if there’s room)
10Mhz ext an option
Alex filter switching header
2.8W stereo audio PA
13.5V supply

Following the tradition of the HPSDR naming convention, I thought Hermes was appropriate as he was known for his invention and theft!

The project leader for the Hermes module is Kevin, MOKHZ.

Link to Wiki

Our HPSDR Wiki will contain the latest news, links, files, etc. for Hermes. Here is the direct link to the HPSDR Wiki: HERMES

Hermes picture Hermes front picture Hermes back picture