[Skimmertalk] A balanced Red-Pitaya-RBN-Station

[hb9jcb at bluewin.ch]

Hi all

Yes the RP is build as a Measurement-Tool but adding 
a Bandpass a Preamp and 1:14 Impedancetrafo makes it to a famus SDR!
and even a powerfull RBN-Station as you can see in the spots analysis tool

My RBN-Setup:
80m horizontal Loop - TPF(50MHz) - Preamp(9dB) - 1:16 - RP(125-14) - HP-Pavillon(2x2,4GHz) - SkimSrv

Some figures:
80m horizontal Loop plane but 8-13m above ground - wireman - 4:1 balun - koax
TPF 50MHz as designed from Phil Covington for his QS1R
Preamp symmetrical Norton 9dB Gain
1:16 Trafo wound quadrofilar on binocular
RP jumpering 2-5 and connected by GHz-Ethernet (80MHz traffic from 8 band listening)
HP-Pavillion 2-Core-2,4GHz 4GB Win7-HP-32bit
SkimSRV 96kHz scanning reduced only to the cwsegmentsize of the appropriate band
Powerconsumtion ca 80W

In test is a scalable Preamplifier-Kit with BPF 2-50MHz from Funkamateuer Kit BZ-100

Future plans:
Using the two Inputs from RP for Low/Highband-Antenna
Rx- and PTT-Tx-Protection switching the rp-input during transmission to a noise-source
Using two RP's and two SkimServers in separate directories on the same computer for morethaneigth bands

lets do it  - have fun
73 de hb9jcb
Johann