XPloRR

Hi all,

I’ve been programming a mobile client for the KiwiSDR protocol, and I finally have something worth sharing: QiwiQ. 

It’s a dark-theme, portrait-mode KiwiSDR app for Android.

Instead of running in the browser, my app processes the KiwiSDR stream locally on your phone.

With no official KiwiSDR protocol documentation available, I relied on example Python code and reverse-engineered browser clients to piece together how the protocol operates.

Features:

• Connects to the public shared KiwiSDR network of servers.

• Built-in waterfall FFT display with zoom and pan.

• Direct band buttons for fast hopping between ham/shortwave bands.

• Frequency logging and memory list.

• Audio options: noise reduction, compressor, ADPCM compression.

• Gestures for tuning: swipe digits, waterfall

• Knobs for volume, squelch and filters.

• Theme colors for the LCD display

It’s still early days, but it’s working pretty well, I guess ;-). 

Download my QiwiQ.apk at: https://vanbarel.eu.org/tools/qiwiq/

Side-load on Android, feedback/bugs very welcome!

Prototype with waterfall is now working:

todo: bugs, bugs, bugs

implement band buttons, nr, squelch, memory handling, serverlist selection box and so much more

Just now saw all these comments (i was talking in another thread with jks, will use this one now ;-))

I am currently fixing a lot of problems, like the 2 connections will be 1 for all (wf, snd and ext).

Fixing other problems like enter in the search screen.

Also spend alot of work making the audio packets engine faster (should now be 35% faster).

There is a bit more latency, but fewer packets should be dropped.

Also reacting/closing sockets cleanly when connection cannot be made with server.

Compiling now version 1.39. will test and release soon.

Also working on DRM (can already decode using ext socket, but cannot assemble the audio, sounds like half the frequency, it seems the audio format is different in DRM mode).

Will try to answer other questions asap, note that I am a newbie as far as shortwave is concerned, so I probably made mistakes interpreting what I read the last weeks (only been reading for 4 weeks about the ham/shortwave/amateur radio stuff)

...

I extended my interface prototype (waterfall not yet implemented here)

Thank you for your information!

This is the latest release 12 and the new waterfall. Color settings can now be changed.

Still have difficulties to derive a significant s-meter. Help is welcome.