Ok Martin , well you never know, when you might need
a stable carrier :)
Keep looking, take a look at
the compatibility list for Simon Browns SDR
software , that is a good range of options , $$ dont
translate directly to performance , its only a A/D chip
with a few others tagged on the back , the rtl sdr
dongle is £5 , running directly on 7 with 40
ft ae and atu
https://www.youtube.com/watch?v=7Le-1aW9BR4Any rx functions are provided by the software .. which is
either free or licensed
73-G,
--------------------------------------------------
From:
"Martin Evans" <
[email protected]>
Sent: Sunday, December
04, 2016 3:52 PM
To: <
[email protected]>
Subject: Re: LF:
Best SDR for LF.
> Thanks Graham.
>
> Not really that
interested in transmitting - been licensed over fifty
> years and done my
share - far more interested in earwigging these days!
>
> Nope,
Elad it is I think.
>
> Martin GW3UCJ.
>
>
>>
>>
>> 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,
>>
>
>
