[hpsdr] Latest Software

[h-hartfuss at t-online.de]

Hi Kjell, Doug,
I've just checked that on 80, 40, 20m with v2.2.3 (W5WC - 11/30/11) and
Alex included:
signal level (S-meter reading) stays constant within 1dB when going
through the settings between 0 ... -50dB, corresponding to the various
combinations of Mercury and Alex attenuators. From my point of view all
works fine.
Attenuator switching problem with your Alex ??
73, Hans, DL2MDQ.


-----Original Message-----
Date: Sat, 17 Dec 2011 11:33:58 +0100
Subject: Re: [hpsdr] Latest Software
From: "Kjell Karlsen" <la2ni at online.no>
To: hpsdr at lists.openhpsdr.org

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

Hi Dough.

I have tested the latest software and it works very fine.

There is a difference from before in the calibration: After a
calibration,  
a -70 dBm signal showed -70dBm with and without the 20 dB attenuator. In
 
the new software, the signal strength drops to -97 dBm with the 20 dB  
attenuator. For the rest of the attenuation steps the drop is according
to  
the settings.

I think the principle from the original calibration should be kept. It
is  
very convenient to read the real signal strength at all the attenuator  
settings.

73, Kjell














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