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From: "Graham" <g8fzk@g8fzk.fsnet.co.uk>
To: <rsgb_lf_group@blacksheep.org>
Date: Tue, 27 Aug 2013 14:35:01 +0100
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Subject: LF: Ultra Cheap RX Dongle for monitor stations 
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In support of requests for monitor stations ,

Listed are a set of links to enable the =A35 usb dongle to be used as=20
SDR-RX , it will benefit from preselectors / filters / pre-amps etc , =
but the=20
initial out lay of =A35 is minimal compared to the results and quality =
of the=20
supporting software is excellent , as well as the SDR )

Performance on HF is 'good' and benefits from a ATU or better a
pre-selector , The later dongle will cover 1500 MHz down to 24MHz =
directly

A modification is needed to access the direct sample mode , attaching a=20
wire and cap .. the video listed is using the wire+cap method , =
alternative
is to use a transformer , taking care the core is rated at the band is=20
question

MF and down , the 'gain' falls off , I have good results using the 500k
tx-atu , the Mini-whip Ae seem's to offer a reasonable solution , and =
can be
seen operating > http://myweb.tiscali.co.uk/wgtaylor/grabber2.html

73-Graham,


SDR >>http://sdrsharp.com/


Mods>>http://www.rtl-sdr.com/rtl-sdr-direct-sampling-mode/


7MHz ssb>>http://www.youtube.com/watch?v=3D7Le-1aW9BR4


Virtual audio cable =
>>http://vb-audio.pagesperso-orange.fr/Cable/index.htm


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<DIV><BR>In support of requests for monitor stations ,<BR><BR>Listed are =
a set=20
of links to enable the =A35 usb dongle to be used as <BR>SDR-RX , it =
will benefit=20
from preselectors / filters / pre-amps etc , but the <BR>initial out lay =
of =A35=20
is minimal compared to the results and quality of the <BR>supporting =
software is=20
excellent , as well as the SDR )<BR><BR>Performance on HF is 'good' and =
benefits=20
from a ATU or better a<BR>pre-selector , The later dongle will cover =
1500 MHz=20
down to 24MHz directly<BR><BR>A modification is needed to access the =
direct=20
sample mode , attaching a <BR>wire and cap .. the video listed is using =
the=20
wire+cap method , alternative<BR>is to use a transformer , taking care =
the core=20
is rated at the band is <BR>question<BR><BR>MF and down , the 'gain' =
falls off ,=20
I have good results using the 500k<BR>tx-atu , the Mini-whip Ae seem's =
to offer=20
a reasonable solution , and can be<BR>seen operating &gt;=20
http://myweb.tiscali.co.uk/wgtaylor/grabber2.html<BR><BR>73-Graham,<BR><B=
R><BR>SDR=20
&gt;&gt;http://sdrsharp.com/<BR><BR><BR>Mods&gt;&gt;http://www.rtl-sdr.co=
m/rtl-sdr-direct-sampling-mode/<BR><BR><BR>7MHz=20
ssb&gt;&gt;http://www.youtube.com/watch?v=3D7Le-1aW9BR4<BR><BR><BR>Virtua=
l audio=20
cable=20
&gt;&gt;http://vb-audio.pagesperso-orange.fr/Cable/index.htm<BR><BR><BR><=
/DIV></BODY></HTML>

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