DG7LAN WebSDR station setup

 The Kiwi is QRT for now!



This is the current setup (and it changes nearly every day :) 

KiwiSDR

Station 1: http://dg7lan.mooo.com:8073 -> KiwiSDR attached to a 24m long wire, 5m ASL. The wire is coupled using a High-Z Amp made made by CrossCountry Wireless
The amp is not actually designed for this purpose but does an amazing job and really increased my SNR. See this post. 

The Kiwi is battery powered and Wifi enabled, so there is no wired connection to anything but the antenna.




Station 2: http://dg7lan.mooo.com:8074 -> 
OpenWebRX on a Raspberry Pi4
This MAY have connection to the HyEndfed as well, but most of the time there is a small vertical with a preamp attached. The antenna is usually hooked up to a Nooelec NESDR Smart and to a BG7YHZ board (the last is mostly tuned to 6m and 10m)

The Nooelec RTL stick is mostly tuned to 2m FT8 or 70cm to listen to the local relais. 

FT8 (and others) background decoding

This is used by me to check the propagation for my location. From the Kiwi I pull the signals with Digiskimmer (check on github) and decode them on the PI of station 2. 

Station 2 also uses background decoding on 6m and 2m using OpenWebRX internal (and fantastic) mechanism.

This is Digiskimmer, decoding from the KiwiSDR. Digiskimmer is really cool. Find it here: 

All the stuff here is under heavy "playvelopment" and things may change or be offline.

NOTE: I like to run WebSDR and to share with the community. BUT please check in with your callsign, I really like to know who is using it

Kiwi SNR

Statistics

There is also some statistics I gather. The first one is SNR over time. Thats pretty neat, I didn't understand the full logic of the SNR computation though.

The second one is the spectrograph over the full HF spectrum. Really nice how one can see the MUF change over time :)

Find the statistics here:   

http://dg7lan.mooo.com:8075

These statistics are gathered via a cron job thats running on the "VHF" PI (Station 1) and saved into a RRD database.



No comments:

Post a Comment

RFI silencing the Victron Solar Charge Controller MPPT 100 15 and possibly other models

Why? You probably came here because you already know that the stock Victron MMPT Solar Charge Controller is nearly unusable if you need a qu...