jks

@Ron, That image shows IQ mode, but with a center frequency of 59.5 kHz and an unbalanced passband that is much too wide for running TDoA on WWVB. If you actually ran using these settings try running again on exactly 60 kHz with a balanced passband of, say, 100 Hz. Hold down the shift key and then click the +/- magnifying glass icons (zoom icons) to symmetrically adjust the passband. Each time you click the passband is reduced (increased) by 80%. Hover over the left or right yellow passband edge to see the current bandwidth.

It turns out v1.204 is what you need. If you already have v1.203 you won't get v1.204 for another 24 hours. But you can force an update to v1.204 immediately by just restarting the Kiwi. This only applies to Kiwi owners of course.

Everyone else, just look on sdr.hu or rx.linkfanel.net for a Kiwi running v1.204. It doesn't really matter what Kiwi you use to run the extension.

Our friend Carl over at rtl-sdr.com has written another nice article about Kiwi TDoA: https://www.rtl-sdr.com/kiwisdr-tdoa-direction-finding-now-freely-available-for-public-use

Thanks to contributed code from Daniel Ekmann, there is now a record button/icon to the left of the mute button/icon at the top right of the main Kiwi control panel. Thanks Daniel!

Thanks to contributed code from Daniel Ekmann, there is now a record button/icon to the left of the mute button/icon at the top right of the main Kiwi control panel. Thanks Daniel!