[hpsdr] openHPSDR at the forefront of SDR development

[Phil Harman]

Hi Kjell,

Initially its not going to be possible to cover  0 to 55MHz of spectrum 
since with 16 bits of ADC data that would exceed the capacity of the Gigabit 
channel.

We could reduce the ADC data to 8 bits but that would hardly meet the 'High 
Performance' requirement!

We can still use 6m since this will alias into the 0-30MHz range, but we 
can't do both at the same time.

We still have 16Mbps 'spare' in the Ethernet bandwidth so we may be able to 
include 6m using a conventional DDC.

Still early days,  we can use the mini PCIe interface on the Jetson board to 
interface to the ADC/DAC in order to run at faster sampling rates.  At the 
moment we don't know how much spare processing capacity we have on  board so 
still lots more tests to run.

73 Phil...VK6PH



-----Original Message----- 
From: Kjell Syverud
Sent: Wednesday, August 20, 2014 5:51 PM
To: hpsdr at lists.openhpsdr.org
Subject: Re: [hpsdr] openHPSDR at the forefront of SDR development

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


Hi Phil.
Nice to hear you can confirm the "DFC" as you presented it in
Friedrichshafen. One question, may be you commented it in
Friedrichshafen, but i can not remember: Will it be possible to cover 30
to 60 MHz ?

73 LA9CY/Kjell
_______________________________________________
HPSDR Discussion List
To post msg: hpsdr at openhpsdr.org
Subscription help: 
http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
HPSDR web page: http://openhpsdr.org
Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/ 


---
This email is free from viruses and malware because avast! Antivirus protection is active.
http://www.avast.com


 1408534088.0