Long Range Pager Systems pagers and coasters URH and YS1 (yardstick one / cc11xx) information and brute force tool
Long Range Pager Systems pagers and coasters URH and YS1 (yardstick one / cc11xx) information and brute force tool Inspired by Tony Tiger's prior work using the HackRF One
I used the LRS Transmitter Tuneup manual to verify the center frequency, deviation, modulation and
This script requires nothing more than RfCat and console-menu
pip install -r requirements.txt
Frequency: 467.75 Mhz
Modulation: FSK
Encoding: Manchester
Rate: 626 baud
Samples/Symble: 3200
Sample Rate: 2M
This script will brute-force all restauraunt ids, blasting all pagers (pager id 0) with the command to flash for 30 seconds.
Alert Command Options
Alert Commands
1 Flash 30 Seconds
2 Flash 5 Minutes
3 Flash/Beep 5X5
4 Beep 3 Times
5 Beep 5 Minutes
6 Glow 5 Minutes
7 Glow/Vib 15 Times
10 Flash Vib 1 Second
68 beep 3 times
Reprogramming LRS pagers
When a pager is first removed from its charging cardle (or powered on) it goes through a 3-4 second Power On Self Test (POST) like operation. After this is complete you have 10 seconds to send a reprogramming command. If the command is sent after this window, the pager will ignore it.You can re-program both the restaurant ID as well as the pager number in one command. Please DO NOT use this command against a system that it is yours. Yes it might be funny to set off all the pagers at a restaurant but reprogramming them isn't cool.
The protocol generating a pager alert packet is:
preamble header restaurant_id system_id pager_number 0000 0000 alert_type crc
The crc is given by taking the sum of the hex values and then taking the modulus of the sum by 255
For restaurant 0 and pager 0 (all) with an alert type of 1 the value would be
aaaaaafc2d0000000000000000012b
Flipper Zero custom preset modulation for decoding LRS pagers
Flipper Zero custom preset modulation for decoding LRS pagers:
Custom_preset_name: Pagers
Custom_preset_module: CC1101
Custom_preset_data: 02 0D 07 04 08 32 0B 06 10 64 11 93 12 0C 13 02 14 00 15 15 18 18 19 16 1B 07 1C 00 1D 91 20 FB 21 56 22 10 00 00 C0 00 00 00 00 00 00 00