[hpsdr] Answers to a few questions

[John Marvin]

OK, just to make sure we are seeing the same thing: with the latest 
CuSDR (version 3.2.14, 64 bit) and the latest Hermes fpga code (V2.5), I 
can set the sampling rate to 96 Khz and I can start 5 receivers. But the 
5th receiver is non functional. I can't tune anything in that receiver. 
I can switch bands, etc. but it basically shows a flat response  with a 
peak or two that look like spurs, but I can't tune any of the things 
that I can tune with the other 4 receivers.

If no one else is seeing this behavior I'll go back to a previous 
version to verify that the problem (at least for me) is due to the fpga 
version and not due to something else I am missing.

Thanks,

John
AC0ZG

On 1/25/2014 8:37 PM, Phil Harman wrote:
> Hi John,
>
> The 5th receiver is implemented in the latest version of Hermes 
> (V2.5). It is used on Tx for pre-distortion but is still available on Rx.
>
> It tests OK using cuSDR at 96ksps - any faster floods the 100T 
> Ethernet connection.  I'll fix this when the Gigabit code is released.
>
> 73 Phil....VK6PH
>
>
>
> -----Original Message----- From: John Marvin
> Sent: Sunday, January 26, 2014 4:15 AM
> To: hpsdr at lists.openhpsdr.org
> Subject: Re: [hpsdr] Answers to a few questions
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> It appears the fifth receiver is no longer working with the new Hermes
> firmware. Did we lose a receiver as part of enabling the PureSignal
> feature, or am I doing something wrong?  I used CuSDR to test with 96
> Khz sampling (since I believe that only 4 receivers were previously
> supported when using 384 Khz sampling). If we did lose a receiver is
> there any way of making this an option that can be turned on/off, or is
> there not enough room in the fpga for both?
>
> FYI, I run multi-channel WSPR reception with 5 receivers (sometimes 7
> with an old slightly buggy prototype fpga version that Alex once
> provided to me), so I like having as many receivers as possible!
>
> Thanks,
>
> John
> AC0ZG
>
> On 1/25/2014 8:43 AM, Warren C. Pratt wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> I'm just sorting through my recent email; however, there are a few 
>> themes upon which I might be able to offer some useful comments.
>>
>> ** 3.2.7 installs into a separate directory from previous releases. 
>> Also, 3.2.7 creates its database in a separate directory.  So, you'll 
>> start with a fresh database and this release can readily coexist with 
>> previous releases.
>>
>> ** As Helmut has pointed out, to learn more about PureSignal 
>> predistortion, open PowerSDR 3.2.7, click 'Linearity' on the menu bar 
>> at the top, then click 'Information' on the form that appears. Bill, 
>> KC9XG, has also provided some additional excellent documentation.
>>
>> ** I see some reports of a front panel CW bug and other reports that 
>> it works OK.  We'll need to check it out.
>>
>> 73,
>> Warren  NR0V
>>
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