[hpsdr] Answers to a few questions

[Hermann]

Hi John, all,

there is probably a problem with cuSDR V0.3.2.14 with Hermes 2.5 firmware.
I confirm the problems with the fifth receiver.On my latest cuSDR build
(V0.4.0.0 - not yet released) there is no problem with Hermes 2.5.

So the bug is on cuSDR 0.3.2.14, not on Hermes firmware 2.5. Sorry for that.

73, Hermann
DL3HVH


On Sun, Jan 26, 2014 at 6:18 AM, John Marvin <jm-hpsdr at themarvins.org>wrote:

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