Contest and Propagation study station JF2IWL
JF2IWL-# CW-RTTY Skimmer

Home / Biography / Radio system / Contest activity / Record and Awards / Web Camera
Skimmer / Skimmer analysis / IBP Beacon Reception / View Beacons / HFD Study / Link

Spots for spotter call = JF2IWL-# (Jumps to Reverse Beacon Network Website)

IBP Beacon RBN Challenge by VE3SUN ( IBP Webiste )
http://www.ncdxf.org/beacon/RBN.html#Challenge

Beacon reception daily stats ( by DL8WX )
http://www.dl8wx.de/BCN_RPRT.TXT

See my frequency segment and accuracy on Detailed Skimmers List ( RBN Website )

* Skimmer Study SDR comparison for SkimmerServer (Revised on 2017/08/06)

SDR Red Pitaya 10bit x 2




Capture segment





Skimmer schematic
Now only two Red Pitayas



SDRs
(Before Agust 2017 )



QS1R with OCXO ( 125MHz ) 7 bands for CW and RTTY SkimServ
S9-C SDR for 8 bands CW SkimServ
Three Red Pitaya-10bit for CW and RTTY SkimServ
Two AFEDRI SDR for CW Skimmer for 160mb

Antennas (Before Agust 2017 now OCF GP)



Diamond Antenna CP-6 6 bands GP
T33jrH 3el tribander ( fixed North )
160mb GP
30 , 17mb GP




Waterfall on WW CW 2016 captured by world RBN members ( This video is NOT Fast-Foward )



Home / Biography / Radio system / Contest activity / Record and Awards / Web Camera
Skimmer / Skimmer analysis / IBP Beacon Reception / View Beacons / HFD Study / Link
JF2IWL Dai Nagakura / Contact (My QRZ.com page)