[hpsdr] Problem with Powersdr 2.2.3 and Hermes

[Doug W5WC]

Hi Andrew,

The svn revision for the single receiver version is 2515 with a release
version of 2.2.3.12 dated 10/16/2012.

The svn revision for the dual receiver version is 2518 with a release
version of 2.2.3.13 dated 10/17/2012.

Normally you will find the most recent versions in an installer package on
the Downloads page on OpenHPSDR.org. For whatever reason it did not pick up
the most current version from yesterday.

The notes about each release is contained in the svn log. For example I am
using TortoiseSVN and to read the log I Right-Click on the Folder or File in
my local directory click on the 'TortoiseSVN->Show Log' feature and the
history for those updates will come up.
That information appears nowhere else that I'm aware of. 

73,
Doug


From: Andrew [mailto:irbsurfing at yahoo.co.uk] 
Sent: Wednesday, October 17, 2012 7:55 AM
To: Doug W5WC
Cc: hpsdr at lists.openhpsdr.org
Subject: Re: [hpsdr] Problem with Powersdr 2.2.3 and Hermes

Hi Doug,
Thanks (and others) for pointing out that there is a new version with the
problems fixed. I shall try them out this evening.
Perhaps you could confirm the revision that I should be using please so no
confusion?

Is there a page somewhere that gives revision history so I know whats fixed
or added?
Its a bit confusing when the releases are being updated regularily as I only
downloaded the version I am using last week.
Maybe something could be added to the website to indicate when a newer is
available version???
Thanks,
Andrew
G4XZL


________________________________________
From: Doug W5WC <w5wc at windstream.net>
To: 'Andrew' <irbsurfing at yahoo.co.uk> 
Cc: hpsdr at lists.openhpsdr.org 
Sent: Wednesday, 17 October 2012, 6:30
Subject: RE: [hpsdr] Problem with Powersdr 2.2.3 and Hermes

Hi Andrew,

Thank you for bringing these problems to our attention. The 'ALEX' control
on the console is for toggling between automatic and manual filter switching
modes for Alex.  If it appears illuminated that means Alex is in the
automatic mode. If you have not enabled Alex in Setup, the console control
is disabled.

The loss you see on 6m is due to a programming oversight. This has been
corrected in both versions of PowerSDR.

The ADC Overload comes from the ADC on Mercury. On Hermes the code was not
looking for the flag in the correct place. This has also been corrected in
the RX2 version of PowerSDR.

Both updated versions are currently on the svn.

Sorry, I am unable to answer your question concerning the dBFS readings.
Maybe someone can enlighten us all on that area.

73,
Doug
W5WC


From: hpsdr-bounces at lists.openhpsdr.org
[mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of Andrew
Sent: Tuesday, October 16, 2012 2:53 PM
To: hpsdr at lists.openhpsdr.org
Subject: [hpsdr] Problem with Powersdr 2.2.3 and Hermes

Hi,
A couple of small problems running v2.2.3 (single or dual Rx version)
downloaded from the openhpsdr website with Hermes and that is that 'Alex' is
always selected. This means that within the 50MHz band the dBm levels are
out by the gain of the LNA in Alex (26dB?). Tuning just outside the band and
all the levels return to normal.
Is there a way to deselect Alex properly please? Its unticked in the
setup>hardware window, but the button is illuminated on the main screen
(button next to MOX and below TUN).
(I also get Metis selected, can't deselect that either??)

Second problem - the ADC overload warning comes on fine with the single
receiver version but does seem to function with the dual receiver version???

What triggers the overload warning, is it the actual ADC overflow output or
triggered by the input level exceeding a certain dBFS level determined in
software (if so, what is it -1dBFS or 0dBFS etc??)
Incidentally, I notice that there is about as far as I can estimate a -7dB
(maybe its 6dB, can't tell) difference between ADC input level (dBFS) and
the level indicated on the Powersdr s meter set to read ADC level.
I can guess why this might be i.e. each I/Q being 6dB lower than the ADC
real level etc, but can anyone confirm the relationship please?
Is there any way to observe the actual ADC wideband level in dBFS??
Many thanks,
Andrew
G4XZL




 1350481882.0