Message-ID: <A06BB4C5304F4EF6A055A2E962CB28BD@AGB>
From: "Graham" <g8fzk@g8fzk.fsnet.co.uk>
To: <rsgb_lf_group@blacksheep.org>
References: <97D8DBA3654D421391F9304494961C50@AGB> <Pine.LNX.4.64.1208251307020.30538@plato.ucs.mun.ca>
In-Reply-To: <Pine.LNX.4.64.1208251307020.30538@plato.ucs.mun.ca>
Date: Sat, 25 Aug 2012 17:31:51 +0100
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Subject: Re: LF: SDR 0..1MHz   A oppertunity  for  design   !
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Ok Joe

Well , I thought  the  race to  LF/VLF was  not  very elegant  as  the 
solutions  where  going  to  be  based  round  'superhet' thinking  , with 
the  zero to .....    part of the  band  missing  .. lots of  designs  where 
/ are  being  posted  with the its   ok from  1>60 MHz

Using  the  ezcap  dongel  Ł10  , I have  some  very  good  results  on VHF 
and  would  say that  ssb  on 433 MHz  is  better  than  my  ft897  ... also 
at  70 MHz  , 4  meter  band  , Rx is  better  than the  convertor / ft897 
set  up .... now  as  if my set  up  is  100% , or not , its  working  just 
fine  with  8 bit  sampling  ..  especially  when  the  affects  of 
re-sampling  are  added  by the  demodulator  software , starts to  cast 
shadows  on these   $1000  sdr's

At the  moment  , the  LF  drivers  are  only  Linux   based  , but  im 
sure  , windows  version  will  be  along  soon, all  that's  needed  is to 
connect  directly  to  one of the  pins on the  ezeycap  , cutting  out the 
front  end  mixer (which reminds me, I must  buy another  one for  LF )

Albertos'   Idea  is  excellent  as  , you  may  even  be  able to  simply 
use the  development   board  / kit .that seems  to  have the  USB  link  on 
board  ...now as  to  how  much that  is  .. no  idea  , but  it  certainly 
cuts  down the  development  , I wonder  how many  educational  kits  will 
be  requested  , before  some  one  starts  to  wonder  ?

73 -G..



--------------------------------------------------
From: <jcraig@mun.ca>
Sent: Saturday, August 25, 2012 4:47 PM
To: <rsgb_lf_group@blacksheep.org>
Subject: Re: LF: SDR 0..1MHz   A oppertunity  for  design   !

> Hi Graham and group,
>
> This is interest to  me too. I have been trying build an V/LF RX but have 
> been faced with formidable non-technical challenges such as getting my 
> hands on a little SRA-8+ mixer!
>
> 73
> Joe VO1NA
>
> On Fri, 24 Aug 2012, Graham wrote:
>
>> For  those who  may  not  look  on the  Ya-BOO   group  , I started a 
>> discussion  over  using  a  simple  ADC for  LF/MF  .. turns  out  there 
>> are  linux  drivers  for the   ezeycap  sdr  dongle to  run  directly  on 
>> LF/HF  , with  NO   analogue  convertor  . but  as  yet  , no  windows 
>> version  ..
>>
>
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