WA2ZKD

About

Username: WA2ZKD
Email: jim@wvzyjimlvyy.ill.com
Joined: December 2016
Visits: 16,165
Last Active: June 21
Roles: Member
Points: 14

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98Helpful38Awesome

Best Stations for TDoA

WA2ZKD

July 2018

This tool helps with RX selection http://ve3sun.com/KiwiSDR/index.php?TXcall=CHU Ottawa&TXfrequency=3330am&TXlatitude=45.0753605&TXlongitude=-94.3082902&propagationTX=1
Maidenhead Grids on Google Maps

WA2ZKD

July 2018

this technique seems potentially useful for what we do

http://dxcluster.ha8tks.hu/hamgeocoding/
What is the MUF?

WA2ZKD

June 2018

And this
http://giro.uml.edu/didbase/scaled.php
WSPR autorun control

WA2ZKD

May 2018

By scheduling the 4-channels on my dedicated wspr kiwi, I have been able to log stations on every band, 137 KHz through 15M in less < 1 week.
WSPR autorun control

WA2ZKD

May 2018

one scipt can call... day, nite, late, and many files day.json if you wish
Interference, a good read

WA2ZKD

April 2018

http://randombio.com/interference.html
Audio Loopback

WA2ZKD

February 2018

I wonder if an extension could be written to loopback the audio. Maybe using something from

https://docs.oracle.com/javase/tutorial/sound/index.html

It could eliminate using a VAC for external decoders...
java on BBG

WA2ZKD

February 2018

or

http://www.oracle.com/technetwork/java/embedded/embedded-se/downloads/javase-embedded-downloads-2209751.html
java on BBG

WA2ZKD

February 2018

I will explore this stuff on my spare kiwi

https://packages.debian.org/search?keywords=openjdk-7-jre
Use CAT6 shielded communications cable for antenna feedline, rotor control, and LNA power

WA2ZKD

February 2018

a look at page 2 here shows the screw terminals are not balanced
http://kiwisdr.com/docs/KiwiSDR/kiwi.schematic.pdf