HB9TMC

My neighbors blinking/dimming LED lights are leaving a beautiful background pattern in my LF spectrum


Happy holidays and thanks to everybody who was/is involved in kiwi related projects.

73
Stefan

Adding a plausibility check might be also a good idea. Moving 1000s of km in a second is an unlikely thing to happen.

I have device with a commercial GPS timing receiver. After powering it up it runs a discovery mode where it is determining the location. Once this is done, it is assumed that the position is stationary. Apparently this helps to get better timing precision.

Since a few other people also tried this, I thought it might be worth an extra thread to share experiences.

For inexperienced users: Updating the kernel might brick your kiwi. Don't try it without a reason.
The how-to for updating the kernel is found here: https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Kernel_Upgrade

Kernel versions I found to be working:
LTS49: 4.9.147-ti-r121

Kernel versions which might cause problems:
LTS44: 4.4.155-ti-r155 (high system load prevents GPS from acquiring satellites, lagging webinterface, seems to be missing firmware)
LTS414: 4.14.108-ti-r108 (doesn't boot)
LTS419: 4.19.50-ti-r20 (does boot, but doesn't work with kiwid)

@Powernumpty Deleting the corresponding folder in wsprdaemon/signal_levels/ did the job for me.

Here's an image that you can expect from a seek reveal pro.
The problem with small components is the minimum focus distance. If you go closer, the image just blurs out.

Here's an image that you can expect from a seek reveal pro.
The problem with small components is the minimum focus distance. If you go closer, the image just blurs out.

Here's an image that you can expect from a seek reveal pro.
The problem with small components is the minimum focus distance. If you go closer, the image just blurs out.

cat /dev/urandom >/dev/null
once per CPU thread

cat /dev/urandom >/dev/null
once per CPU thread

They do look like pileups, I think there are some dxpeditions. C21MM and PX0FF.