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From: "Graham" <g8fzk@g8fzk.fsnet.co.uk>
To: <rsgb_lf_group@blacksheep.org>
References: <4CCAED49.6030007@o2.ie> <9D5C745165354DCE8D0B48E7D4D2ECFE@MLB>
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Date: Sat, 30 Oct 2010 10:31:34 +0100
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Subject: Re: LF: Re: RFspace SDR-IQ
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This  SDR is round $200  , has  anyone used one ?

G..

http://www.lazydogengineering.com/LD-1A_SDR.html
--------------------------------------------------
From: "Martin Evans." <books@mollies.freeserve.co.uk>
Sent: Saturday, October 30, 2010 8:43 AM
To: <rsgb_lf_group@blacksheep.org>
Subject: LF: Re: RFspace SDR-IQ

>
>>
>> Hello group.
>>
>> Has anyone any experience with this SDR ?
>> It looks interesting and I'm a bit tempted, especially as it works full 
>> spec down to 500 Hz and "usable" to 100 Hz.
>> But as I have never used an SDR, I haven't got a clue if it's any good or 
>> not.
>>
>>Tony.
>
> #########################################
>
> Tony - I received SAQ two ways a few days ago -
>
> 1) wire antenna straight into sound card, using Winrad;
>
> 2) Same wire antenna through SDR-IQ using SDR-Radio.
>
> Antenna is 100m inverted U tuned with around 100mH (can't really remember 
> exactly).
>
> I swapped the antenna physically between the two setups every few seconds.
>
> I was using two separate computers, one for each method.
>
> Result?  - really very little difference. A good clear signal on both. 
> The sound card/Winrad setup might have been marginally cleaner, but 
> bearing in mind that this was a lashup, with no attempt at any kind of 
> optimisation or minimalisation of computer noise,  I would say that the 
> SDR-IQ was close to being the equal of the "wire into soundcard" method. 
> With some careful filtering to clean up the computer noise, it would 
> almost certainly equal or exceed it.
>
> I found incidentally, that SDR-Radio software has a much more sensitive 
> waterfall display than the Spectravue supplied with the SDR-IQ. The former 
> gave a strong clear trace, while the latter's trace was barely 
> discernable.
>
> Get one - SDRs are the best thing since CW!
>
> Hope this helps,
>
> Martin  GW3UCJ Swansea.
>
>
>
>