• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:

Homebrew on Homepatrol-1

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Dec 19, 2002
North Texas
And this does WHAT ???

Is it just a way to show a flash screen?
It is just a simple program that scrolls a message up the screen. Nothing too exciting to the average person. This is just a proof of concept, and is not a trivial task. He modified the firmware to load custom code from the SD card prior to the OS booting up.

The implications of this are huge, in that, he can have virtually unlimited tests by loading a modified ROM image from the SD card. Rather then burning up limited ROM rewrites after each modification.

Learn to control the RF section. Figure out how to change frequencies, steps, modulation, etc. Then get it to recognize sync patterns for MPT-1327, NXDN, DMR, ProVoice, OpenSky, etc. Start assembling the trunking packets and dump them out the serial dumper interface. These are the interesting things.. :D
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