[Skimmertalk] Flex and Skimmer : Decoded bandwidth ?

[David Gilbert]

Link to the YouTube video??

As far as I know, if they were getting 40KHz they weren't using CW 
Skimmer in IF mode.

Dave   AB7E



On 8/21/2013 3:21 PM, Andrew O'Brien wrote:
> It is interesting because I received private emails today from several Flex
> owners asking the same question, they claim that previously they received
> no answer on Flex mail lists.  If, as some suggest, Alex has set the limit,
> this does not explain the Youtube video I  saw today where someone was
> using Skimmer with another SDR and they seemed to be getting about 40 Khz.
>    Also, the information I have found implies this is related to roofing
> filters.  This should not be an issue with a Flex .
>
> Andy K3UK
>
>
> On Wed, Aug 21, 2013 at 6:47 AM, Pete Smith N4ZR <n4zr at contesting.com>wrote:
>
>>   Hi Andy - my understanding is that the 24-KHz bandwidth is set in
>> software by CW Skimmer.  I do not understand the technical rationale for
>> this, but Alex apparently feels it is necessary.  That puzzles me because I
>> just saw a Youtube video showing 192-KHz bandwidth running a Funcube Dongle
>> Pro+ from the IF output of a TS-830, and EA6VQ is using one alone to
>> cover 192 KHz of 6 meters for the RBN.
>>
>> I know that VE2WU is (or was, I'm not sure) running a Skimmer/Flex
>> combination on the RBN, and he reports coverage of 14000-14090.  You might
>> get in touch with him.
>>
>> 73, Pete N4ZR
>> Check out the Reverse Beacon Network at http://reversebeacon.net,
>> blog at reversebeacon.blogspot.com.
>> For spots, please go to your favorite
>> ARC V6 or VE7CC DX cluster node.
>>
>> On 8/20/2013 11:19 PM, Andrew O'Brien wrote:
>>
>> I previously had Skimmer working with an SDR-IQ but lately have been using
>> a Flex 3000.  I don't think I have been paying enough attention to the
>> settings until today .  The Flex 3000 gives about 96 Khz of bandwidth in
>> theory, more like 80 kHz in reality. Plenty for most of my needs, I can
>> switch to the SDR-IQ if I need 190 Khz. However, I  notice today that if my
>> Flex is set for 14043.00 on 20M, the lowest frequency CW Skimmer decoded a
>> CQ call is 14031. , the highest so far is 14055. There may not be a lot of
>> CQing above 14055 but I would have thought there would be a fair amount of
>> CQs below 14031. I have my sampling rate set to 96 Khz.  The bandscope in
>> Cw Skimmer starts at 14031 .  I must be doing something stupid.  To get a
>> Flex to work with CW Skimmer, the instructions are to use the Sofrock-IF
>> settings.  I wonder is this is part of the issue.  I would like to decode
>> CQ over a range wider than 24 Khz.
>>
>> Andy K3UK
>> _______________________________________________
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>>
>>
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