Message-ID: <39D3D21292BB4545816F891373132AE9@AGB>
From: "Graham" <g8fzk@g8fzk.fsnet.co.uk>
To: <rsgb_lf_group@blacksheep.org>
References: <1283782765.9999818.1480859806446.ref@mail.yahoo.com> <1283782765.9999818.1480859806446@mail.yahoo.com> <41b1da16-f5a4-b3d4-53c0-e2c9f405c92d@mollies.freeserve.co.uk>
In-Reply-To: <41b1da16-f5a4-b3d4-53c0-e2c9f405c92d@mollies.freeserve.co.uk>
Date: Sun, 4 Dec 2016 15:44:36 -0000
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Subject: Re: LF: Best SDR for LF.
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Status: O

Martin

The holy grail  is to  find one that  transmits  as  well ,  there  was one 
tx/rx  demonstrated a few years  back  at the  rsgb convention, which was to 
retail round  £200 , that  price looks to be the  norm now ,  but if it 
also tx's then that's more use ..

 There  is  a  new  ''kiwi sdr''   rx-only  $200 , which is  showing up  as 
a  web linked system by the  users ,  this  seems to be  very  good

Other than  that , lots of  lower  bit ones about ,  but even with  lots of 
bits ,  there  dynamic  range , is not going to  get close to  the  like's 
of the  racals  5 watt mixer drive  120 dB  4 fet cct and there is  some 
conjecture round the  actual  usable number of bits , compared to the 
physical bit  count ,

In saying that , the rtl  8 bit  works better  than  the ft897 on 1.8 and 
3.5 mhz  :(

pre- b/w  filtering  would appeared to be required to  keep  the  out of 
band  carriers  at a  reasonable level

73-G,

--------------------------------------------------
From: "Martin Evans" <books@mollies.freeserve.co.uk>
Sent: Sunday, December 04, 2016 2:47 PM
To: <rsgb_lf_group@blacksheep.org>
Subject: Re: LF: Best SDR for LF.

> Thanks Pete.
>
> Doesn't seem to be much in the way of spec on that site, and the 
> installation looks tiresome.
>
> Still, worth checking.
>
> Martin  GW3UCJ.
>
>>   Try ... http://fivedash.com/
>>   73 es GL Pete M0FMT GQRP#15097.in IO91UX
>>   --------------------------------------------
>>   On Sun, 4/12/16, Martin Evans <books@mollies.freeserve.co.uk>
>>   wrote:
>>   Subject: LF: Best SDR for LF.
>>    To: rsgb_lf_group@blacksheep.org
>>    Date: Sunday, 4 December, 2016, 12:58
>>    I've got an SDR-IQ SDR receiver which works pretty well on
>>    136/470 kHz.
>>    I need a second receiver now, for LF again.
>>    What would the group suggest for a receiver at least as
>>   good
>>    as the
>>    SDR-IQ for these frequencies?
>>    I am not interested in its performance above 500kHz.
>>    It must work with SDR-console, the premier SDR program!
>>    alternatively, has anyone in UK/EU got an SDR-IQ for sale?
>>    Thanks,
>>    Martin  GW3UCJ Swansea.
>>
>>
>
> 

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