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Technical Topics => SDR - Software Defined Radio => Topic started by: k1ra on December 31, 2025, 1513 UTC

Title: My Favorite New SDR App for 2026!
Post by: k1ra on December 31, 2025, 1513 UTC
HNY All!
 
I haven't seen this mentioned here yet, but for those running the RX-888, there is a new system that is so cool I can't put it into words.  It wraps so much into one app I may be retiring many of my other go to SDR apps and hardware.
 
https://ubersdr.org/
 
https://github.com/madpsy/ka9q_ubersdr
 
It's composed of two docker images to support KA9Q-Radio and another for the UI, decoding and processing.  There are also standalone clients for Windows and Linux, which I've yet to play with that offer various audio and CAT interfaces and SDC TCI connectivity, something I've been looking to see supported in the opensource SDR realm.  See https://www.lw-sdc.com/ for more on add-ons.
 
I've spun up docker and when I'm not testing/playing/restarting the images, you can check the receiver UI here:
 
http://ubersdr.k1ra.us:9080/
 
but also check out some cool metrics and analytics at:
 
http://ubersdr.k1ra.us:9080/digitalspots_map.html
http://ubersdr.k1ra.us:9080/bandconditions.html
http://ubersdr.k1ra.us:9080/noisefloor.html
 
There are only a select few others running this found here:
 
https://instances.ubersdr.org/
 
73
 
andyz - K1RA
Title: Re: My Favorite New SDR App for 2026!
Post by: stscc on January 07, 2026, 1755 UTC
Tried it with my RC-888 MK2, but couldn't get it to work. Problem is the missing admin password. During installation, I was never asked for a password and so I can't log in to the administration frontend. Strange...
Title: Re: My Favorite New SDR App for 2026!
Post by: NB3A on January 17, 2026, 2117 UTC
Tried it with my RC-888 MK2, but couldn't get it to work. Problem is the missing admin password. During installation, I was never asked for a password and so I can't log in to the administration frontend. Strange...

Don’t be discouraged, there is real value here if you can get it running. If you ran the curl script to install, then somewhere towards the end of the installation it should have given you the password as an output in the terminal. If you missed that or whatever, no worries. The password you need is stored in plaintext here: /var/lib/docker/volumes/ubersdr_ubersdr-config/_data/config.yaml you can open with your text editor of choice whether VI or nano.

Good Luck, I think the analytics and real world band condition logging here is unparalleled.

73, NB3A
Title: Re: My Favorite New SDR App for 2026!
Post by: ChrisSmolinski on January 24, 2026, 2242 UTC
I assume this is only for the MK2 and not original RX-888?
Title: Re: My Favorite New SDR App for 2026!
Post by: Maxalt on June 18, 2026, 1959 UTC
I'm running it on a VM under UnRAID and I have to say, once you get into it there are some amazing features - I don't know the author too well but he's done an amazing job and I'm surprised it hasn't got more traction.
I am having an issue with noise floor reporting when multicast seems to get stuck on a race loop but I *think* I sorted that out with a startup script (edit, maybe not).
The UI leaves a bit to be desired in my opinion, it kinda looks like a toy SDR and I wish it could look more like Kiwi but for what it is I'm very pleased.


https://k1jfj.tunnel.ubersdr.org