jks

Questions from the Tech Minds YouTube review:

A number of things actually. There is a software-defined GPS receiver as part of the Kiwi. it is used to provide automatic frequency calibration of the main 66.67 MHz low phase-noise oscillator that feeds the ADC and FPGA. It's also used to generate GPS timestamps that are applied to the audio stream to support the Kiwi's TDoA direction finding capability. GPS time and date will be used if it cannot be sourced from the Internet. Determining timezone requires determining location and GPS obviously helps with that. Otherwise approximate location from the public IP address must be used.

This is due to the efforts of our friend Pierre who runs the numbers station site priyom.org. You'll note that map.kiwisdr.com forwards to his map site rx.linkfanel.net. Pierre has provided the Kiwi map service for many, many years and we are indebted to his contribution.

Currently only the bandwidth of the audio channel which is either 12 or 20.25 kHz depending on the mode the Kiwi is set for. There is a utility written in Python for connecting to the Kiwi and recording audio, waterfall and S-meter data including as IQ files. See: kiwiclient. There have been some experiments in providing a wide band mode so that several hundred kHz of spectrum could be recorded or processed, but this has not yet been released. See: wideband-iq-streaming-mode-for-local-processing

Questions from the Tech Minds YouTube review:

Yes, it was designed as "shortwave" receiver covering 10 kHz (VLF) to 30 MHz (32 MHz with reduced specs). It is possible to use a downconverter ahead of the Kiwi to cover VHF/UHF and a number of public Kiwi owners have done just that. See here: non-HF Kiwis

The my.kiwisdr.com page will only show information about your Kiwi if the network your Kiwi is attached to has a connection to the Internet at the time it starts up. Also, that network must have a DHCP server to assign a local IP address to the Kiwi. Try restarting the Kiwi. Our documentation describes other methods for determining the local IP address including decoding the pattern blinked out by the 4 blue LEDs.

The BeagleBone Green we used back in 2016 did not include WiFi. There is something called the BeagleBone Green Wireless, but it is not physically compatible with the Kiwi board. Instead, we recommend using a TP-Link TL-WR802N WiFi nano router which can plug directly into the Kiwi's Ethernet connector and your WiFi network. It requires minimal configuration and none on the Kiwi side if you use DHCP to assign the Kiwi its local IP address. Future products will definitely include WiFi.

I think this is a conflict between who controls the LEDs during the sd card backup script running. I believe it's on my list of things to fix.

Update: Okay, fixed for the next release.

Yep, a typo made in the Verilog code last July if you can believe that. Didn't show itself until I built v1.807. Fixed in v1.808..

Instructions for the Debian 11 upgrade procedure described below are here: http://kiwisdr.com/quickstart/index.html#id-D11-upgrade

From the CHANGE_LOG file: