[hpsdr] ADC Overload

[Steven Doyle]

Hi Graham,

It only happens when I connect to the antenna I think.

I reverted back to the production version of the mecury FPGA code, 
recalibrated with the XG2 at 50uV(-73dB) and everything worked as expected. 
Tonight I will try again with Mecury26, maybe I screwed up the calibartion, 
though I don't think so.

regards

Steve
G1YLB


----- Original Message ----- 
From: "Graham / KE9H" <KE9H at austin.rr.com>
To: "Steven Doyle" <steve_doyle at o2.co.uk>
Cc: "HPSDR discussion list" <hpsdr at lists.hpsdr.org>
Sent: Thursday, March 12, 2009 11:59 PM
Subject: Re: [hpsdr] ADC Overload


> Steve:
> Does this happen when connected to an antenna, or does it also happen
> when hooked to 50 Ohm load, or to the level calibrator?
> --- Graham
>
> Steven Doyle wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>>
>> ------------------------------------------------------------------------
>>
>> Hi,
>>  I'm currently running mercury firmware 26 and the latest PowerSDR 
>> 28Feb2009. I notice that whenever the pre-amp is on, powerSDR indicates 
>> an ADC Overload, this happen on all bands. Probably some setting I have 
>> overlooked. For information I performed a level calibaration using 
>> Elecraft XG2.
>>  Any ideas ?
>>  cheers
>>  Steve
>> G1 YLB
>> ------------------------------------------------------------------------
>>
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