[Skimmertalk] Red Pitaya 6m

[David Robbins]

Have you tried it without the built in attenuator?  

David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net:7373



-----Original Message-----
From: Skimmertalk [mailto:skimmertalk-bounces at contesting.com] On Behalf Of
Dai NAGAKURA
Sent: Friday, June 16, 2017 10:52
To: skimmertalk at contesting.com
Subject: Re: [Skimmertalk] Red Pitaya 6m


This is a brief report of RP-10 on 6mb comparing with S9-C SDR

http://air.ap.teacup.com/jf2iwl/2197.html

Of course , capture SNR of Red Pitaya is 3~5dB less than S9-C.
but It could be used even on 6m if handled propery.
( Pre-amp , Transformer and so on )

Dai JF2IWL



On Fri, 16 Jun 2017 09:05:38 +0900
Dai NAGAKURA <ndai at cameo.plala.or.jp> wrote:

> 
> Now JF2IWL/2-# Red Pitaya-10 captures JA6YBR/B.
> http://www.reversebeacon.net/dxsd1/dxsd1.php?f=5382
> about 1000km South West from my QTH : 10W~0.1W beacon.
> This is via sporadic E.
> 
> It works.
> 
> Dai JF2IWL
> 
> 
> On Fri, 16 Jun 2017 00:55:08 +0900
> Dai NAGAKURA <ndai at cameo.plala.or.jp> wrote:
> 
> > Dave I don't know RP's sensitivity on 6mb.
> > but I feel RP's HF sesitiviry is well ,compareing with S9-C and QS1R.
> > 
> > Now I am still testing three SDRs as below.
> > http://59925.org/skimmer.html
> > 
> > My RP setting is only Normal low ATT jumper + preamp pushing.
> > If add 1:9 transformer to  front-end ,Capture SNR must be up 6dB.
> > 
> > Also pse see my comparison result.
> > http://59925.org/misc/SkimServ_SDR_comparison/
> > 
> > Dai JF2IWL
> > 
> > 
> > 
> > 
> > On Thu, 15 Jun 2017 15:24:25 -0000
> > "David Robbins" <k1ttt at verizon.net> wrote:
> > 
> > > Is the sensitivity good?
> > > 
> > > David Robbins K1TTT
> > > e-mail: mailto:k1ttt at arrl.net
> > > web: http://wiki.k1ttt.net
> > > AR-Cluster node: 145.69MHz or telnet://k1ttt.net:7373
> > > 
> > > 
> > > 
> > > -----Original Message-----
> > > From: Skimmertalk [mailto:skimmertalk-bounces at contesting.com] On 
> > > Behalf Of Dai NAGAKURA
> > > Sent: Thursday, June 15, 2017 14:30
> > > To: skimmertalk at contesting.com
> > > Subject: Re: [Skimmertalk] 6m
> > > 
> > > 
> > > JF2IWL/2-# does it.
> > > 
> > > But none has captured because I sett segment JA domestic contest 
> > > band 50250-50300.
> > > 
> > > I re-set segment normal 6m band segment now.
> > > When JF2IWL/2-# appears here ,
> > > http://www.reversebeacon.net/dxsd1/dxsd1.php?f=5382
> > > It's Red Pitaya-10
> > > 
> > > The antenna is Diamond antenna's CP-6, 6 regacy band GP, 80~6mb.
> > > 
> > > Dai JF2IWL
> > > 
> > > 
> > > 
> > > 
> > > On Thu, 15 Jun 2017 13:02:26 -0000 "David Robbins" 
> > > <k1ttt at verizon.net> wrote:
> > > 
> > > > Has anyone tried a RedPitaya for skimming 6m?  
> > > > 
> > > > David Robbins K1TTT
> > > > e-mail: mailto:k1ttt at arrl.net
> > > > web: http://wiki.k1ttt.net
> > > > AR-Cluster node: 145.69MHz or telnet://k1ttt.net:7373
> > > > 
> > > > 
> > > > 
> > > > -----Original Message-----
> > > > From: Skimmertalk [mailto:skimmertalk-bounces at contesting.com] On 
> > > > Behalf Of David Robbins
> > > > Sent: Wednesday, June 07, 2017 15:41
> > > > To: skimmertalk at contesting.com
> > > > Subject: [Skimmertalk] 6m
> > > > 
> > > > Anyone here skimming 6m??  what are you using for
antenna/preamp/sdr???
> > > > 
> > > >  
> > > > 
> > > > David Robbins K1TTT
> > > > e-mail:  <mailto:k1ttt at arrl.net> mailto:k1ttt at arrl.net
> > > > web:  <http://wiki.k1ttt.net/> http://wiki.k1ttt.net AR-Cluster
node:
> > > > 145.69MHz or  <telnet://k1ttt.net:7373>
> > > > telnet://k1ttt.net:7373
> > > > 
> > > >  
> > > > 
> > > >  
> > > > 
> > > > _______________________________________________
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> > > 
> > > --
> > > Dai NAGAKURA <ndai at cameo.plala.or.jp>
> > > 
> > > _______________________________________________
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> > --
> > Dai NAGAKURA <ndai at cameo.plala.or.jp>
> > 
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> --
> Dai NAGAKURA <ndai at cameo.plala.or.jp>
> 
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--
Dai NAGAKURA <ndai at cameo.plala.or.jp>

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