FAQ - Revision history

KV0S: /* Compare to other SDR designs */

2010-02-21T00:54:39Z

‎Compare to other SDR designs

2010-02-21T00:51:55Z

‎The HPSDR Project

2010-01-31T13:58:04Z

‎Compare to other SDR designs: link update

2010-01-26T13:03:50Z

‎How Do I

2010-01-26T13:01:51Z

‎NOTES

2010-01-26T13:00:56Z

‎How Do I

2010-01-25T18:31:55Z

+cats

2010-01-18T23:46:47Z

‎Resources

2010-01-18T21:54:29Z

‎Technical

2010-01-18T21:51:32Z

‎Resources

@@ Line 765: / Line 765: @@
 Q. '''What is the difference between the Hermes [http://openhpsdr.org/mercury.html Mercury] DDC Rx and the [http://www.srl-llc.com/ QuickSilver] from Phil N8VB Software Radio Laboratory LLC?
-A.  The Hermes is a smaller more compact version of the wildly successful Atlas backplane and OpenHPSDR add-on HPSDR boards.
+A.  The Hermes is a smaller more compact version of the wildly successful Atlas backplane and OpenHPSDR add-on HPSDR boards. Phil N8VB developed the initial designs of both boards.
 === '''How Do I''' ===

@@ Line 16: / Line 16: @@
 Q. '''What is the status of the various boards or modules?'''
-A. Here's the scoop on some as of May 23, 2009:
+A. Here's the scoop on some as of February 20, 2010:
 *ATLAS - in production, order through http://tapr.org
@@ Line 27: / Line 27: @@
 *LPU - in production - available in kit form.  Order through http://tapr.org
 *ALEX - Pre-production
-*PENNYWHISTLE - Pre-production
+*PENNYWHISTLE - Order through http://tapr.org
-*EXCALIBUR - Pre-production
+*EXCALIBUR - Order through http://tapr.org
-*PANDORA - Pre-production
+*PANDORA - Order through http://tapr.org
 All others - in various stages of design/development -- see their wiki pages or the [http://openhpsdr.org HPSDR] website.

← Older revision		Revision as of 13:58, 31 January 2010
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−	Q. '''What is the difference between the Hermes [http://openhpsdr.org/mercury.html Mercury] DDC Rx and the [http://www.srl-llc.com/~~QS1R~~ QuickSilver] from Phil N8VB Software Radio Laboratory LLC?	+	Q. '''What is the difference between the Hermes [http://openhpsdr.org/mercury.html Mercury] DDC Rx and the [http://www.srl-llc.com/ QuickSilver] from Phil N8VB Software Radio Laboratory LLC?

	A. The Hermes is a smaller more compact version of the wildly successful Atlas backplane and OpenHPSDR add-on HPSDR boards.		A. The Hermes is a smaller more compact version of the wildly successful Atlas backplane and OpenHPSDR add-on HPSDR boards.

@@ Line 806: / Line 806: @@
 A. This feature is provided by the Flex PowerSDR(TM) Windows software.
-IMPORTANT:
+:IMPORTANT:
-Hermes provides a stereo Audio Amplifier suitable for driving speakers from 3 to 8 ohms.  The amplifiers are implement in a bridge configuration so that one side of the speaker must NOT be connected to earth or 0v.  Connect the Left speaker to pins 1 and 2 of J16 ( or Tip and Ring of  J21)  and the Right speaker to pins 1 and 2 of J15 (or Tip and Ring of J22).
+:Hermes provides a stereo Audio Amplifier suitable for driving speakers from 3 to 8 ohms.  The amplifiers are implement in a bridge configuration so that one side of the speaker must NOT be connected to earth or 0v.  Connect the Left speaker to pins 1 and 2 of J16 ( or Tip and Ring of  J21)  and the Right speaker to pins 1 and 2 of J15 (or Tip and Ring of J22).

@@ Line 947: / Line 947: @@
 ==NOTES==
 <references/>
 == Miscellaneous ==

← Older revision		Revision as of 13:00, 26 January 2010
Line 806:		Line 806:

	A. This feature is provided by the Flex PowerSDR(TM) Windows software.		A. This feature is provided by the Flex PowerSDR(TM) Windows software.
		+	IMPORTANT:
		+	Hermes provides a stereo Audio Amplifier suitable for driving speakers from 3 to 8 ohms. The amplifiers are implement in a bridge configuration so that one side of the speaker must NOT be connected to earth or 0v. Connect the Left speaker to pins 1 and 2 of J16 ( or Tip and Ring of J21) and the Right speaker to pins 1 and 2 of J15 (or Tip and Ring of J22).
		+

← Older revision		Revision as of 18:31, 25 January 2010
Line 950:		Line 950:

	General Readership: have a suggested question that should be here? Email: [mailto:kv0s.dave@gmail.com Dave, KV0S]		General Readership: have a suggested question that should be here? Email: [mailto:kv0s.dave@gmail.com Dave, KV0S]
		+
		+	[[Category:Community]]
		+	[[Category:Documentation]]

@@ Line 476: / Line 476: @@
 Q. '''Where can I get the orientation and training DVD?'''
-A.  To learn all about Digital Down Converter technology, please purchase DVD #6 from [http://www.arvideonews.com/dcc2008/ARVN (Amateur Radio Video News)] in which Phil Harman VK6APH teaches us the practical details from his wonderful presentation at Dayton-2008. The DVD consists of almost 6 hours of education in DDC by Phil Harman. The ARVN webpage says:
+A.  To learn all about Digital Down Converter technology, please purchase DVD #6 from [http://www.arvideonews.com/dcc2008/ARVN (Amateur Radio Video News)] in which Phil Harman VK6APH teaches us the practical details from his wonderful presentation at Dayton-2008. The DVD consists of 4 hours of high quality education in DDC by Phil Harman. The ARVN webpage says:
 : Software Defined Radio
 : "Through the Looking Glass"

@@ Line 519: / Line 519: @@
 Q. '''What is a DDC receiver [http://openhpsdr.org/mercury.html see Mercury]?'''
-A. DDC is the abbreviation for the term Digital Down Conversion. DDC receivers are able to finally fulfill the dream that has been expressed in Ham Radio magazines for 50 years – to place the digital processing of analog RF information closer to the antenna. The OpenHPSDR Mercury receiver accomplishes that goal. In the OpenHPSDR Mercury and Hermes projects, the antenna is connected to a modern integrated circuit chip. The chip in this case is a '''very''' fast Analog to Digital
+A. To learn all about Digital Down Converter technology, please purchase DVD #6 from [http://www.arvideonews.com/dcc2008/ARVN (Amateur Radio Video News)] in which Phil Harman VK6APH teaches us the practical details in his wonderful presentation at Dayton-2008. The DVD consists of almost 6 hours of education in DDC by Phil Harman.  There is no better presentation of the DDC fundamentals.
 conversion device called the LTC2208. The Mercury and Hermes designs are designed to be supplemented by bandpass, attenuation, and pre-amp circuits.

← Older revision		Revision as of 21:51, 18 January 2010
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	Q. '''Where can I get the orientation and training DVD?'''		Q. '''Where can I get the orientation and training DVD?'''

−	A. (~~to be developed~~)	+	A. To learn all about Digital Down Converter technology, please purchase DVD #6 from [http://www.arvideonews.com/dcc2008/ARVN (Amateur Radio Video News)] in which Phil Harman VK6APH teaches us the practical details from his wonderful presentation at Dayton-2008. The DVD consists of almost 6 hours of education in DDC by Phil Harman. The ARVN webpage says:
		+	: Software Defined Radio
		+	: "Through the Looking Glass"
		+	: Phil Harman VK6APH leads you on an entertaining, detailed trip through the design of the Mercury SDR receiver. With the A/D converter preceeded only by a bandpass filter, Mercury does everything in software, at a price hams can afford. It is the leading edge in ham radio technolog.