[Skimmertalk] 6m

a45wg a45wg at sy-edm.com
Thu Jun 15 15:45:23 EDT 2017


Dail,
	Please could you expand on this ?

	What “mods” to a standard RP ?

	And why a 1:9 in front ?

		My RP - is connected to a Cobweb (Homebrew) that sits under the TH7 about 9 m above it. I have a TT3G50 “Lightning protector” on the RP input Coax - to hopefully prevent RF damage when I am kicking out 500W CW (which is my normal band). So far it has survived 6 months like this…..

	It is very nice to have a “private” RBN - especially in contests that do not prevent (hence the omni-directional cobb-webb) 

	Regards 

		Tim, A45WG
			M0FGC  etc..



> On Jun 15, 2017, at 7:55 PM, 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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