Github repository with supporting files and data

Background and intro

This project started when I plugged in my RTL-SDR, tuned it to 868MHz, and saw some mystery signals. This article is about my attempt at finding out what these signals are and writing a decoder for them. But first a little intro about RTL-SDR:

SDR stands for Software Defined Radio, and is exactly what it sounds like: a radio that can be controlled by software. Much like a good old-fashioned radio that you can manually tune to a frequency between 88MHz and 108MHz listen to a radio programme on, an SDR can be tuned by software to frequencies between 24MHz and 1.7GHz.

You can listen to radio programmes on an RTL-SDR as well, but you need a software on your laptop to do so. You can also listen to radio traffic between airplanes and control towers, receive weather balloon transmissions, weather satelite images, and much more.

In general, different use cases of radio communications use certain frequency bands. Airplane to control tower communication is often on 118-137MHz, weather balloons usually transmit on 400-406MHz, and so on. Frequency 433MHz and 868MHz are used for low power communications such as car keys, RFID, weather stations, home automation, etc.

To decode signals sent on 433MHz and 868MHz on your RTL-SDR, you need a software. One such software is rtl_433 which is an open-sourced project which aims to provide decoders for devices that use these two, and other similar, frequences.

The first time I used rtl_433 I tuned it to 433MHz and found out that the air in my house was full on information from sensors that I did not own. There were several temperature/humidity sensors, air pressure sensors from my neighbors car, and from remote controls.

When I tuned rtl_433 to 868MHz, there was really only one kind of signals, and rtl_433 didn’t have a decoder for them. Hence, I set out to write one.

Finding the right modulation

I first used this command to capture the signals in rtl_433:

rtl_433 -f 868M  -S all -A

The -A enables rtl_433’s built in analysis tool which provided the output in the dropdown below.

Click for full rtl_433 capture output


Detected FSK package	2024-07-05 19:18:16
Analyzing pulses...
Total count:  100,  width: 78.33 ms		(78329 S)
Pulse width distribution:
 [ 0] count:    1,  width:    0 us [0;0]	(   0 S)
 [ 1] count:    5,  width:    5 us [5;6]	(   5 S)
 [ 2] count:   14,  width:    2 us [2;2]	(   2 S)
 [ 3] count:    6,  width:    3 us [3;3]	(   3 S)
 [ 4] count:    7,  width:    1 us [1;1]	(   1 S)
 [ 5] count:    3,  width:   10 us [9;12]	(  10 S)
 [ 6] count:    7,  width:    4 us [4;4]	(   4 S)
 [ 7] count:    4,  width:    7 us [7;8]	(   7 S)
 [ 8] count:    1,  width:   17 us [17;17]	(  17 S)
 [ 9] count:   41,  width:  500 us [500;504]	( 500 S)
 [10] count:    9,  width: 1000 us [1000;1002]	(1000 S)
 [11] count:    2,  width: 1501 us [1500;1502]	(1501 S)
Gap width distribution:
 [ 0] count:    9,  width:    3 us [3;3]	(   3 S)
 [ 1] count:   10,  width:    2 us [2;2]	(   2 S)
 [ 2] count:   16,  width:    1 us [1;1]	(   1 S)
 [ 3] count:    6,  width:    5 us [5;6]	(   5 S)
 [ 4] count:    4,  width:    4 us [4;4]	(   4 S)
 [ 5] count:    2,  width:    7 us [7;8]	(   7 S)
 [ 6] count:    1,  width:   11 us [11;11]	(  11 S)
 [ 7] count:   38,  width:  499 us [469;501]	( 499 S)
 [ 8] count:    4,  width: 1501 us [1501;1501]	(1501 S)
 [ 9] count:    7,  width: 1000 us [999;1001]	(1000 S)
 [10] count:    1,  width: 4000 us [4000;4000]	(4000 S)
 [11] count:    1,  width: 9504 us [9504;9504]	(9504 S)
Pulse period distribution:
 [ 0] count:    8,  width:    3 us [3;3]	(   3 S)
 [ 1] count:   10,  width:    9 us [8;11]	(   9 S)
 [ 2] count:    6,  width:    4 us [4;4]	(   4 S)
 [ 3] count:   10,  width:    5 us [5;7]	(   5 S)
 [ 4] count:    5,  width:   14 us [12;18]	(  14 S)
 [ 5] count:    2,  width:    2 us [2;2]	(   2 S)
 [ 6] count:    7,  width:    7 us [7;7]	(   7 S)
 [ 7] count:   35,  width: 1000 us [1000;1004]	(1000 S)
 [ 8] count:   11,  width: 2092 us [2001;2502]	(2092 S)
 [ 9] count:    3,  width: 1490 us [1469;1501]	(1490 S)
 [10] count:    1,  width: 4501 us [4501;4501]	(4501 S)
 [11] count:    1,  width: 10004 us [10004;10004]	(10004 S)
Pulse timing distribution:
 [ 0] count:    1,  width:    0 us [0;0]	(   0 S)
 [ 1] count:   11,  width:    5 us [5;6]	(   5 S)
 [ 2] count:   24,  width:    2 us [2;2]	(   2 S)
 [ 3] count:   15,  width:    3 us [3;3]	(   3 S)
 [ 4] count:   23,  width:    1 us [1;1]	(   1 S)
 [ 5] count:    4,  width:   10 us [9;12]	(  10 S)
 [ 6] count:   11,  width:    4 us [4;4]	(   4 S)
 [ 7] count:    6,  width:    7 us [7;8]	(   7 S)
 [ 8] count:    1,  width:   17 us [17;17]	(  17 S)
 [ 9] count:   80,  width:  499 us [469;504]	( 499 S)
 [10] count:   16,  width: 1000 us [999;1002]	(1000 S)
 [11] count:    6,  width: 1501 us [1500;1502]	(1501 S)
 [12] count:    1,  width: 4000 us [4000;4000]	(4000 S)
 [13] count:    1,  width: 9504 us [9504;9504]	(9504 S)
Level estimates [high, low]:  11909,     48
RSSI: -1.4 dB SNR: 23.9 dB Noise: -25.3 dB
Frequency offsets [F1, F2]:   23428,  25369	(+357.5 kHz, +387.1 kHz)
Guessing modulation: Non Return to Zero coding (Pulse Code)
Attempting demodulation... short_width: 1, long_width: 1, reset_limit: 1024, sync_width: 0
Use a flex decoder with -X 'n=name,m=FSK_PCM,s=1,l=1,r=1024'
[pulse_slicer_pcm] Analyzer Device
codes     : {32863}1f8cec1c8fff1f679ffb7fbfffeff8def839b030c3fc8fe706b78fef3c78f01743001206f8070c1f3fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc0000000000000000000000000000000000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[pulse_slicer_pcm] Analyzer Device
codes     : {14999}fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
[pulse_slicer_pcm] Analyzer Device
codes     : {4526}ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff80000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
[pulse_slicer_pcm] Analyzer Device
codes     : {3526}ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
[pulse_slicer_pcm] Analyzer Device
codes     : {3525}ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff80000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
[pulse_slicer_pcm] Analyzer Device
codes     : {3525}ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff80000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
[pulse_slicer_pcm] Analyzer Device
codes     : {2501}fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

rtl_433 guessed that the modulation was ‘short_width: 1, long_width: 1, reset_limit: 1024, sync_width: 0’ and used it to produce the output shown above.

This output puzzled me, mostly because I could not make out a packet structure. I thought that looking at the raw signal in a graphical tool would help. I found the fantastic software Universal Radio Hacker (URH) which is something like a Swiss army knife for SDR analysis. I used it to open one of the .cu8 files I had captured in rtl_433 (using the -S option). The output looked like this:

Clearly, URH had guessed the modulation of the signal differently to rtl_433. When I looked at several .cu8 files a package structure started to emerge and I concluded that URH was more right than rtl_433.

Looking at the signal in URH, I found that the signal had tapered ends. Each transmission began with a gradual increase in signal amplitude over approximately 300 μs. Then comes periods of 500 μs of what appears to be different frequencies. Presumably, one frequency means 1 and another means 0.

Building the decoder to capture data

Capturing the signal with rtl_433

I figured that it would be best to try to get rtl_433 to capture the signal. rtl_433 is great for collecting data since you can get it to output the results in csv format.

In rtl_433 you can use the option ‘-X’ to dictate what modulation will be used. It has the parameters ‘modulation’, ‘short’, ‘long’, ‘reset’, and ‘gap’. I don’t really understand what any of those mean in the context of my sort of modulation so I set both short and long to 500. With reset and gap, I tried different parameters. I found that some parameters make rtl_433 chop the package up into several rows, and for other the packages would get sections with the same data repeated. I experimented with different sets until I found parameters that minimized these issues.

At this stage I also cloned the rtl_433 repository and started getting into how the code works. To create a new decoder, rtl_433 provides a template C file. You define modulation and package structure, and rtl_433 will then use your decoder C file to decode transmissions that match. I started with the template and wrote a decoder (see GitHub link) that would output the mystery packages as both hex code and binary. This was so that I would get the raw data from the packages so I could analyse them in R.

Now that I had the decoder I could start rtl_433 and have it capture data automatically using this command:

rtl_433 -f 868M -X 'n=name,m=FSK_PCM,s=500,l=500,r=10000,g=7000' -M level -F csv:capture_withX_livingroom_14.csv

The ‘-X’ does largely the same as my decoder. However, I found that many packages are caught by the ‘-X’ option but not the decoder. I still don’t know why that is.

The ‘-M level’ generates the Received Signal Strength Indicator (rssi) is is also part of the csv output. This is useful because I could place my laptop in various places to get an idea where the signals are coming from.

Package analysis

It’s finally time to start looking at the packages. It seems that every package starts with 8 bytes of 0xAA followed by 0x2DD4. After that follows a number of bytes. All unique packages are given below (in ‘Click for data’). The seven first columns are the 8 first bytes, and the ‘rest’ column contains whatever is left of the package. The ‘count’ column indicates how many instances there are of the particular package.

All R scripts used for the analysis below as well as data can be found in this repository.

Click for data

byte 11 to 12	byte 13	byte 14	byte 15	byte 16	byte 17	byte 18	byte 19 to end	count
075B	01	40	4A	80	3F	FF	FFFFF8	1
075B	02	80	4C	00	1F	8F	005B8	1
075B	02	80	95	00	6F	3C	011C	2
075B	02	80	95	00	79	BC	01160	1
075B	02	80	98	00	3F	1E	00B70	1
075B	04	02	50	01	E8	F0	0458	2
075B	05	00	38	03	36	00	8	1
075B	05	00	95	00	3C	DE	0088	4
075B	05	00	95	00	79	BC	01160	1
075B	05	00	B0	00	FC	78	02DC	1
075B	05	01	1E	00	D9	78	0208	2
075B	05	01	1E	00	DB	78	020	2
075B	05	01	1E	00	DC	78	020	2
075B	05	01	1E	00	DE	78	020C	6
075B	05	01	1E	00	DF	78	020	36
075B	05	01	1E	00	DF	78	0200	13
075B	05	01	1E	00	E0	78	0230	28
075B	05	01	1E	00	E1	78	0230	131
075B	05	01	1E	00	E2	78	0230	76
075B	05	01	1E	00	E3	78	020	62
075B	05	01	1E	00	E3	78	0200	7
075B	05	01	1E	00	E4	78	0230	48
075B	05	01	1E	00	E5	78	0230	40
075B	05	01	1E	00	E6	78	0234	33
075B	05	01	1E	00	E7	78	0230	71
075B	05	01	1E	00	E8	78	0238	124
075B	05	01	1E	00	E8	78	023B0	1
075B	05	01	1E	00	E8	78	023B00	1
075B	05	01	1E	00	E9	78	0238	82
075B	05	01	1E	00	EA	78	0238	222
075B	05	01	1E	00	EA	78	02390	1
075B	05	01	1E	00	EB	78	020	88
075B	05	01	1E	00	EB	78	0200	8
075B	05	01	1E	00	EC	78	020	83
075B	05	01	1E	00	EC	78	0200	7
075B	05	01	1E	00	EC	78	023F0	1
075B	05	01	1E	00	EC	78	023F00	1
075B	05	01	1E	00	ED	78	020	172
075B	05	01	1E	00	ED	78	0200	39
075B	05	01	1E	00	EE	78	023C	202
075B	05	01	1E	00	EF	78	020	110
075B	05	01	1E	00	EF	78	0200	25
075B	05	01	1E	00	EF	78	023C	2
075B	05	01	1E	00	EF	78	023C0	2
075B	05	01	1E	00	F			1
075B	05	01	1E	00	F0	78	0220	285
075B	05	01	1E	00	F0	78	02230	1
075B	05	01	1E	00	F0	78	022300	1
075B	05	01	1E	00	F1	78	0220	309
075B	05	01	1E	00	F1	78	02220	1
075B	05	01	1E	00	F2	78	0220	399
075B	05	01	1E	00	F2	78	02210	1
075B	05	01	1E	00	F2	78	022100	1
075B	05	01	1E	00	F3	78	020	289
075B	05	01	1E	00	F3	78	0200	54
075B	05	01	1E	00	F3	78	02200	2
075B	05	01	1E	00	F3	78	022000	1
075B	05	01	1E	00	F4	78	0220	377
075B	05	01	1E	00	F4	78	0226	1
075B	05	01	1E	00	F4	78	02270	3
075B	05	01	1E	00	F4	F0	0450	1
075B	05	01	1E	00	F5	78	0220	631
075B	05	01	1E	00	F5	78	02260	4
075B	05	01	1E	00	F5	78	022600	1
075B	05	01	1E	00	F6	78	0220	2
075B	05	01	1E	00	F6	78	0224	247
075B	05	01	1E	00	F6	78	02250	1
075B	05	01	1E	00	F7	78	0220	128
075B	05	01	1E	00	F7	78	02240	4
075B	05	01	1E	00	F8	78	0228	102
075B	05	01	1E	00	F9	78	0228	109
075B	05	01	1E	00	FA	0		1
075B	05	01	1E	00	FA	78	0228	290
075B	05	01	1E	00	FB	78	022	333
075B	05	01	1E	00	FB	78	0220	67
075B	05	01	1E	00	FB	78	02280	7
075B	05	01	1E	00	FB	78	022800	1
075B	05	01	1E	00	FC	78	022	171
075B	05	01	1E	00	FC	78	0220	42
075B	05	01	1E	00	FC	78	022F0	2
075B	05	01	1E	00	FD	78	022	113
075B	05	01	1E	00	FD	78	0220	5
075B	05	01	1E	00	FD	78	022E0	1
075B	05	01	1E	00	FE	78	022C	99
075B	05	01	1E	00	FF	78	022	70
075B	05	01	1E	00	FF	78	0220	8
075B	05	01	1E	00	FF	78	022C0	1
075B	05	01	1E	01	00	78	02D0	25
075B	05	01	1E	01	01	78	02D0	24
075B	05	01	1E	01	02	78	02C	30
075B	05	01	1E	01	02	78	02C0	5
075B	05	01	1E	01	03	78	02D0	42
075B	05	01	1E	01	03	78	02D70	1
075B	05	01	1E	01	03	78	02D700	1
075B	05	01	1E	01	04	78	02D0	45
075B	05	01	1E	01	0C	78	02C	2
075B	05	01	1E	01	0C	78	02C0	1
075B	05	01	2					1
075B	05	01	28	00	E5	78	020	2
075B	05	01	28	00	E5	78	0200	1
075B	05	01	28	00	E6	78	0220	2
075B	05	01	28	00	E7	78	0220	2
075B	05	01	28	00	E8	78	0220	41
075B	05	01	28	00	E9	78	020	10
075B	05	01	28	00	E9	78	0200	1
075B	05	01	28	00	EA	78	0220	4
075B	05	01	28	00	EB	78	0220	153
075B	05	01	28	00	EB	78	0224	1
075B	05	01	28	00	EC	78	0224	64
075B	05	01	28	00	ED	78	0220	128
075B	05	01	28	00	ED	78	02240	1
075B	05	01	28	00	ED	78	022400	1
075B	05	01	28	00	EE	78	0228	568
075B	05	01	28	00	EE	78	022B0	4
075B	05	01	28	00	EE	78	022B00	3
075B	05	01	28	00	EF	78	0228	330
075B	05	01	28	00	EF	78	022A0	1
075B	05	01	28	00	F0	78	0228	285
075B	05	01	28	00	F0	78	02290	1
075B	05	01	28	00	F1	78	022	170
075B	05	01	28	00	F1	78	0220	41
075B	05	01	28	00	F2	78	022	108
075B	05	01	28	00	F2	78	0220	33
075B	05	01	28	00	F2	78	022F0	2
075B	05	01	28	00	F2	78	022F00	2
075B	05	01	28	00	F3	78	022	46
075B	05	01	28	00	F3	78	0220	15
075B	05	01	28	00	F4	0		1
075B	05	01	28	00	F4	78	022C	89
075B	05	01	28	00	F4	78	022D0	3
075B	05	01	28	00	F4	78	022D00	1
075B	05	01	28	00	F5	78	022	102
075B	05	01	28	00	F5	78	0220	37
075B	05	01	28	00	F5	78	022C	1
075B	05	01	28	00	F5	78	022C0	2
075B	05	01	28	00	F5	78	022C00	1
075B	05	01	28	00	F6	78	02D0	12
075B	05	01	28	00	F7	78	02D0	5
075B	05	01	28	00	F9	78	02C	2
075B	05	01	28	00	F9	78	02C0	1
075B	05	01	28	00	FA	78	02D0	45
075B	05	01	28	00	FA	78	02D70	1
075B	05	01	28	00	FA	78	02D700	1
075B	05	01	28	00	FB	78	02D0	109
075B	05	01	28	00	FC	78	02D4	128
075B	05	01	28	00	FC	78	02D50	1
075B	05	01	28	00	FD	78	02D0	67
075B	05	01	28	00	FD	78	02D40	1
075B	05	01	28	00	FE	78	02D8	25
075B	05	01	28	00	FE	78	02DB0	2
075B	05	01	28	00	FF	78	02D8	78
075B	05	01	28	00	FF	78	02DA0	1
075B	05	01	28	00	FF	78	02DA00	1
075B	05	01	28	01	00	78	02C	60
075B	05	01	28	01	00	78	02C0	11
075B	05	01	28	01	00	78	02D80	2
075B	05	01	28	01	01	78	02C	20
075B	05	01	28	01	01	78	02C0	4
075B	05	01	28	01	02	78	02C	14
075B	05	01	28	01	02	78	02C0	2
075B	05	01	28	01	03	78	02DC	30
075B	05	01	28	01	03	78	02DFC	1
075B	05	01	28	01	03	78	02DFC0	1
075B	05	01	28	01	04	78	02C	18
075B	05	01	28	01	04	78	02C0	4
075B	05	01	28	01	05	78	02C0	21
075B	05	01	28	01	05	78	02C30	1
075B	05	01	28	01	05	78	02C300	1
075B	05	01	28	01	06	78	02C0	26
075B	05	01	28	01	07	78	02C0	12
075B	05	01	28	01	08	78	02	26
075B	05	01	28	01	09	78	02C0	9
075B	05	01	28	01	0A	78	02C0	5
075B	05	01	28	01	0B	78	02C4	39
075B	05	01	28	01	0B	78	02C50	1
075B	05	01	28	01	0C	78	02C0	109
075B	05	01	28	01	0D	78	02C8	72
075B	05	01	28	01	0D	78	02CB0	3
075B	05	01	28	01	0F	78	02C8	14
075B	05	01	28	01	12	78	02C	2
075B	05	01	28	01	12	78	02C0	1
075B	05	01	2A	00	3C	DE	008B00	1
075B	05	01	2A	00	79	BC	00458	1
075B	05	01	2A	00	79	BC	0088	1
075B	05	01	2A	00	79	BC	0110	2
075B	05	01	2A	00	79	BC	01160	3
075B	05	01	2A	00	79	BC	011600	1
075B	05	01	2A	00	79	BC	022C0	1
075B	05	01	2A	00	79	BC	022C00	1
075B	05	01	2A	00	D4	F0	0448	1
075B	05	01	2A	00	D9	78	0230	3
075B	05	01	2A	00	DD	78	0238	4
075B	05	01	2A	00	DE	78	0238	87
075B	05	01	2A	00	DF	78	020	54
075B	05	01	2A	00	DF	78	0200	5
075B	05	01	2A	00	E0			1
075B	05	01	2A	00	E0	78	020	10
075B	05	01	2A	00	E0	78	0200	2
075B	05	01	2A	00	E1	78	020	8
075B	05	01	2A	00	E2	78	023C	8
075B	05	01	2A	00	E3	78	020	19
075B	05	01	2A	00	E3	78	0200	4
075B	05	01	2A	00	E4	78	0220	26
075B	05	01	2A	00	E5	78	0220	29
075B	05	01	2A	00	E5	78	02220	1
075B	05	01	2A	00	E6	78	0220	81
075B	05	01	2A	00	E6	78	0221	1
075B	05	01	2A	00	E6	78	02210	2
075B	05	01	2A	00	E7	78	020	64
075B	05	01	2A	00	E7	78	0200	21
075B	05	01	2A	00	E7	78	02200	2
075B	05	01	2A	00	E8	70	044	1
075B	05	01	2A	00	E8	70	0440	1
075B	05	01	2A	00	E8	78	022	1
075B	05	01	2A	00	E8	78	0220	83
075B	05	01	2A	00	E8	78	0227	1
075B	05	01	2A	00	E8	78	02270	2
075B	05	01	2A	00	E9	78	0220	126
075B	05	01	2A	00	E9	78	02260	2
075B	05	01	2A	00	E9	78	022600	1
075B	05	01	2A	00	EA	04	80	2
075B	05	01	2A	00	EA	78	0224	129
075B	05	01	2A	00	EA	78	02250	2
075B	05	01	2A	00	EA	78	022500	1
075B	05	01	2A	00	EB	78	0220	119
075B	05	01	2A	00	EB	78	02240	1
075B	05	01	2A	00	EC	78	0228	33
075B	05	01	2A	00	ED	78	0228	60
075B	05	01	2A	00	ED	78	022A0	1
075B	05	01	2A	00	ED	78	022A00	1
075B	05	01	2A	00	EE	78	0228	81
075B	05	01	2A	00	EF	78	022	275
075B	05	01	2A	00	EF	78	0220	30
075B	05	01	2A	00	EF	78	0228	3
075B	05	01	2A	00	EF	78	02280	11
075B	05	01	2A	00	EF	78	022800	3
075B	05	01	2A	00	F0	78	022	178
075B	05	01	2A	00	F0	78	0220	37
075B	05	01	2A	00	F1	78	022	165
075B	05	01	2A	00	F1	78	0220	19
075B	05	01	2A	00	F1	78	022E0	1
075B	05	01	2A	00	F2	0		1
075B	05	01	2A	00	F2	78	022C	129
075B	05	01	2A	00	F2	78	022D	1
075B	05	01	2A	00	F2	78	022D0	2
075B	05	01	2A	00	F2	E0	088	1
075B	05	01	2A	00	F3	78	0110	2
075B	05	01	2A	00	F3	78	01160	2
075B	05	01	2A	00	F3	78	0210	1
075B	05	01	2A	00	F3	78	022	91
075B	05	01	2A	00	F3	78	0220	14
075B	05	01	2A	00	F3	78	022C	2
075B	05	01	2A	00	F3	78	022C0	20
075B	05	01	2A	00	F3	78	022C00	2
075B	05	01	2A	00	F3	78	044	1
075B	05	01	2A	00	F3	78	0440	1
075B	05	01	2A	00	F3	7F	FC	1
075B	05	01	2A	00	F4	78	02D0	19
075B	05	01	2A	00	F5	78	0168	1
075B	05	01	2A	00	F5	78	02D0	16
075B	05	01	2A	00	F5	78	02D20	1
075B	05	01	2A	00	F6	78	02D0	34
075B	05	01	2A	00	F6	78	02D10	1
075B	05	01	2A	00	F7	78	02C	37
075B	05	01	2A	00	F7	78	02C0	11
075B	05	01	2A	00	F8	78	02D0	61
075B	05	01	2A	00	F9	78	02D0	137
075B	05	01	2A	00	F9	78	02D6	2
075B	05	01	2A	00	F9	78	02D60	2
075B	05	01	2A	00	F9	78	02D600	1
075B	05	01	2A	00	FA	78	02D4	111
075B	05	01	2A	00	FB	78	02D0	81
075B	05	01	2A	00	FB	78	02D4	1
075B	05	01	2A	00	FB	78	02D40	1
075B	05	01	2A	00	FC	78	02D8	158
075B	05	01	2A	00	FD	78	02D8	218
075B	05	01	2A	00	FD	78	02DA0	1
075B	05	01	2A	00	FD	F0	05B0	1
075B	05	01	2A	00	FE	78	02D8	15
075B	05	01	2A	00	FF	78	02C	27
075B	05	01	2A	00	FF	78	02C0	3
075B	05	01	2A	01	00	78	02C	42
075B	05	01	2A	01	00	78	02C0	2
075B	05	01	2A	01	00	78	02DE	2
075B	05	01	2A	01	01	78	02DC	24
075B	05	01	2A	01	02	0		1
075B	05	01	2A	01	02	78	02C	133
075B	05	01	2A	01	02	78	02C0	21
075B	05	01	2A	01	02	78	02DC0	1
075B	05	01	2A	01	03	78	02C0	16
075B	05	01	2A	01	E6	F0	0458	1
075B	05	01	30	00	7E	3C	016E	1
075B	05	01	30	00	7E	BC	016	1
075B	05	01	30	00	F3	78	02D0	2
075B	05	01	30	00	F4	78	02D4	7
075B	05	01	30	00	F5	78	02D0	6
075B	05	01	30	00	F6	78	02D8	9
075B	05	01	30	00	F7	78	02D8	11
075B	05	01	30	00	F8	78	02D8	9
075B	05	01	30	00	F9	78	02C	179
075B	05	01	30	00	F9	78	02C0	38
075B	05	01	30	00	F9	78	02D80	1
075B	05	01	30	00	F9	78	02D800	1
075B	05	01	30	00	FA	78	02C	373
075B	05	01	30	00	FA	78	02C0	60
075B	05	01	30	00	FB	78	02C	375
075B	05	01	30	00	FB	78	02C0	87
075B	05	01	30	00	FB	78	02DC	1
075B	05	01	30	00	FB	78	02DE	3
075B	05	01	30	00	FB	78	02DE0	2
075B	05	01	30	00	FB	78	02DE00	1
075B	05	01	30	00	FB	78	058	1
075B	05	01	30	00	FC	78	02D8	1
075B	05	01	30	00	FC	78	02DC	614
075B	05	01	30	00	FC	78	02DD0	8
075B	05	01	30	00	FC	78	02DD00	1
075B	05	01	30	00	FD	78	02C	333
075B	05	01	30	00	FD	78	02C0	93
075B	05	01	30	00	FD	78	02DC	5
075B	05	01	30	00	FD	78	02DC0	5
075B	05	01	30	00	FE	78	02C0	118
075B	05	01	30	00	FF	78	02C0	149
075B	05	01	30	01	00	78	02	229
075B	05	01	30	01	01	78	02C0	255
075B	05	01	30	01	02	78	02C0	235
075B	05	01	30	01	03	78	02C4	88
075B	05	01	30	01	04	78	02C0	50
075B	05	01	30	01	05	78	02C8	87
075B	05	01	30	01	06	78	02C8	76
075B	05	02	60	01	FA	F0	058	1
075B	07	FF						2
075B	0A	01	30	00	E7	78	022C	2
075B	0A	01	30	00	E8	78	022	3
075B	0A	01	30	00	E9	78	02D0	4
075B	0A	01	30	00	EA	78	02D0	3
075B	0A	01	30	00	EB	78	02D0	1
075B	0A	01	30	00	EC	78	02C	5
075B	0A	02	54	01	E6	F0	0458	1
075B	0A	02	60	01	FA	F0	05B8	1
075B	0A	08	F0	07	9B	C0	10	1
075B	A0	2A	00	EB	78	02	20	1
DCCC	04	02	10	00	4F	00	08	2
DCCC	05	01	0A	00	C4	78	0020	30
DCCC	05	01	0A	00	C5	78	0020	16
DCCC	05	01	0A	00	C6	78	0024	10
DCCC	05	01	0A	00	C7	78	0020	15
DCCC	05	01	0A	00	C8	78	0028	8
DCCC	05	01	0A	00	C9	78	0028	12
DCCC	05	01	0A	00	CA	78	0028	12
DCCC	05	01	0A	00	CB	78	002	107
DCCC	05	01	0A	00	CB	78	0020	12
DCCC	05	01	0A	00	CC	78	002	121
DCCC	05	01	0A	00	CC	78	0020	6
DCCC	05	01	0A	00	CD	78	002	97
DCCC	05	01	0A	00	CD	78	0020	17
DCCC	05	01	0A	00	CE	78	002C	122
DCCC	05	01	0A	00	CE	78	002D0	1
DCCC	05	01	0A	00	CF	78	002	213
DCCC	05	01	0A	00	CF	78	0020	35
DCCC	05	01	0A	00	D0	78	00D0	209
DCCC	05	01	0A	00	D0	78	00D30	1
DCCC	05	01	0A	00	D1	78	00D0	185
DCCC	05	01	0A	00	D1	78	00D20	1
DCCC	05	01	0A	00	D2	78	00A0	1
DCCC	05	01	0A	00	D2	78	00D0	220
DCCC	05	01	0A	00	D2	78	00D10	1
DCCC	05	01	0A	00	D3	78	00C	577
DCCC	05	01	0A	00	D3	78	00C0	82
DCCC	05	01	0A	00	D3	78	00D	1
DCCC	05	01	0A	00	D3	78	00D00	3
DCCC	05	01	0A	00	D4	78	00D0	670
DCCC	05	01	0A	00	D5	78	00D0	523
DCCC	05	01	0A	00	D5	78	00D60	1
DCCC	05	01	0A	00	D6	78	00D4	24
DCCC	05	01	0A	00	D7	78	00D0	26
DCCC	05	01	0A	00	D8	78	00D8	96
DCCC	05	01	0A	00	D9	78	00D8	121
DCCC	05	01	0A	00	DA	78	00D8	98
DCCC	05	01	0A	00	DB	78	00C	161
DCCC	05	01	0A	00	DB	78	00C0	11
DCCC	05	01	0A	00	DC	78	00C	145
DCCC	05	01	0A	00	DC	78	00C0	13
DCCC	05	01	0A	00	DC	78	00DF0	5
DCCC	05	01	0A	00	DD	78	00C	264
DCCC	05	01	0A	00	DD	78	00C0	63
DCCC	05	01	0A	00	DE	78	00DC	7
DCCC	05	01	16	00	FA	78	00E4	6
DCCC	05	01	16	00	FB	78	00E0	48
DCCC	05	01	16	00	FC	78	00E8	41
DCCC	05	01	16	00	FC	78	00EB0	1
DCCC	05	01	16	00	FC	78	00EB00	1
DCCC	05	01	16	00	FD	78	00E8	15
DCCC	05	01	16	00	FE	78	00E8	20
DCCC	05	01	16	00	FF	78	00E	9
DCCC	05	01	16	01	00	78	00E	5
DCCC	05	01	16	01	01	78	00EC	39
DCCC	05	01	16	01	02	78	00E	15
DCCC	05	01	16	01	03	78	0090	1
DCCC	05	01	1A	00	A1	0		1
DCCC	05	01	1A	00	A1	00		1
DCCC	05	01	1A	00	C			1
DCCC	05	01	1A	00	C7	78	00D0	26
DCCC	05	01	1A	00	DA	78	00C8	19
DCCC	05	01	1A	00	DB	78	00C	59
DCCC	05	01	1A	00	DB	78	00C0	14
DCCC	05	01	1A	00	DC	78	00C	48
DCCC	05	01	1A	00	DC	78	00C0	12
DCCC	05	01	1A	00	DD	78	00C	56
DCCC	05	01	1A	00	DD	78	00C0	32
DCCC	05	01	1A	00	DE	78	00CC	55
DCCC	05	01	1A	00	DF	78	00C	30
DCCC	05	01	1A	00	E0	78	00F0	46
DCCC	05	01	1A	00	E1	78	00F0	29
DCCC	05	01	1A	00	E1	78	00F20	1
DCCC	05	01	1A	00	E2	78	00F0	66
DCCC	05	01	1A	00	E3	78	00	64
DCCC	05	01	1A	00	E4	78	00F0	161
DCCC	05	01	1A	00	E5	78	00F0	130
DCCC	05	01	1A	00	E5	78	00F60	1
DCCC	05	01	1A	00	E6	78	00F4	42
DCCC	05	01	1A	00	E7	78	00F0	42
DCCC	05	01	1A	00	E8	78	00F8	58
DCCC	05	01	1A	00	E9	78	00F8	42
DCCC	05	01	1A	00	EA	78	00F8	43
DCCC	05	01	1A	00	EB	78	00	11
DCCC	05	01	1A	00	EC	78	00	22
DCCC	05	01	1A	00	EC	78	00FF0	1
DCCC	05	01	1A	00	ED	78	00	14
DCCC	05	01	1A	00	ED	78	00FE0	1
DCCC	05	01	1A	00	EE	78	00FC	40
DCCC	05	01	1A	00	EF	78	00	23
DCCC	05	01	1A	00	EF	78	00FC0	1
DCCC	05	01	1A	00	EF	78	00FC00	1
DCCC	05	01	1A	00	F0	78	00E0	26
DCCC	05	01	1A	00	F1	78	00E0	15
DCCC	05	01	1A	00	F2	78	00E0	76
DCCC	05	01	1A	00	F2	78	00E10	2
DCCC	05	01	1A	00	F3	78	00	41
DCCC	05	01	1A	00	F4	78	00E0	9
DCCC	05	01	1A	00	F5	78	00E0	10
DCCC	05	01	1A	00	F9	78	00E8	1
DCCC	05	01	1A	00	FB	78	00E	12
DCCC	05	01	1A	00	FC	78	00E	15
DCCC	05	01	1A	00	FD	78	00E	27
DCCC	05	01	1A	00	FD	78	02E	1
DCCC	05	01	1E	00	DF	78	00	63
DCCC	05	01	1E	00	E0	78	00F0	9
DCCC	05	01	1E	00	E1	78	00F0	6
DCCC	05	01	1E	00	E2	78	00F4	10
DCCC	05	01	1E	00	E3	78	00F0	8
DCCC	05	01	1E	00	E4	78	00F8	18
DCCC	05	01	1E	00	E5	78	00F8	8
DCCC	05	01	1E	00	E6	78	00F8	8
DCCC	05	01	1E	00	E7	78	00	17
DCCC	05	01	1E	00	E8	78	00	47
DCCC	05	01	1E	00	E9	78	00	63
DCCC	05	01	1E	00	E9	78	00FE0	1
DCCC	05	01	1E	00	E9	78	00FE00	1
DCCC	05	01	1E	00	EA	78	00FC	55
DCCC	05	01	1E	00	EA	78	00FD0	2
DCCC	05	01	1E	00	EB	78	00	71
DCCC	05	01	1E	00	EC	78	00E0	96
DCCC	05	01	1E	00	EC	78	00E30	1
DCCC	05	01	1E	00	ED	78	00E0	234
DCCC	05	01	1E	00	EE	78	00E0	144
DCCC	05	01	1E	00	EF	78	00	360
DCCC	05	01	1E	00	F0	78	00E0	493
DCCC	05	01	1E	00	F1	78	00E0	307
DCCC	05	01	1E	00	F2	78	00E4	157
DCCC	05	01	1E	00	F3	78	00E0	46
DCCC	05	01	1E	00	F4	78	00E8	31
DCCC	05	01	1E	00	F5	78	00E8	72
DCCC	05	01	1E	00	F6	78	00E8	468
DCCC	05	01	1E	00	F7	78	00E	200
DCCC	05	01	1E	00	F7	78	00E0	41
DCCC	05	01	1E	00	F8	78	00E	50
DCCC	05	01	1E	00	F8	78	00E0	10
DCCC	05	01	1E	00	F9	78	00E	27
DCCC	05	01	1E	00	F9	78	00E0	6
DCCC	05	01	1E	00	FA	78	00EC	1
DCCC	05	01	1E	00	FD	78	0090	10
DCCC	65	00	48	C8	C8	00	0	1
DCCC	65	00	8					1
DCCC	65	00	C1	91	9F	FF	FF0	1
DCCC	65	00	C8	91	90	00	0	1
DCCC	65	00	C8	C				2
DCCC	65	00	C8	C8				1
DCCC	65	00	C8	C8	C			3
DCCC	65	00	C8	C8	C0	00	058	1
DCCC	65	00	C8	C8	C8	00	0	6018
DCCC	65	00	C8	C8	C8	00	00	2
DCCC	65	00	C8	C8	C8	00	00A	1
DCCC	65	00	C8	C8	C8	00	00B0	31
DCCC	65	00	C8	C8	C8	00	00B4	1
DCCC	65	00	C8	C8	C8	00	016	4
DCCC	65	00	C8	C8	C8	00	0160	1
DCCC	65	00	C8	C8	C8	00	0168	1
DCCC	65	00	C8	C8	C8	00	76	2
DCCC	65	00	C8	C9	90	00	0	1
DCCC	65	00	C8	DE	40	00		1
DCCC	65	00	C8	E4	64	00	0	1
DCCC	65	01	91	91	90	00	00	1
DCCC	65	01	91	91	90	00	016	3
DCCC	65	01	91	91	90	00	0160	2
DCCC	65	01	9F					1
DCCC	65	0C	98					1
DCCC	65	10	46	1E	00	00		758
DCCC	65	10	46	1E	00	00	0	1
DCCC	65	10	46	1E	00	00	00	2
DCCC	6A	01	91	91	93	FF	F	1
DCCC	6A	20	C8	C8	C8	00	0	2430
DCCC	6A	20	C8	C8	C8	00	00	580
DCCC	6A	20	C8	C8	C8	00	0058	2
DCCC	6A	20	C8	C8	C8	00	00590	2
DCCC	6A	30	46	1E	00	00		272
DCCC	7F	FF	FF	F				1
DCCC	FD	01	0A	00	D5	78	00D0	1
EEA0	01	40	42	80	3A	DE	00348	1
EEA0	02	00	28	03	C9	E0	036	1
EEA0	02	80	85	00	36	DE	00040	1
EEA0	02	80	85	00	71	3C	0014	3
EEA0	02	80	85	00	74	3C	0016	1
EEA0	02	80	85	00	75	3C	00698	1
EEA0	02	80	85	00	78	9C	000A	1
EEA0	02	80	85	00	78	9E	000AC	1
EEA0	02	80	85	00	7A	DE	00348	1
EEA0	05	00	85	00	36	DC	00088	1
EEA0	05	00	85	00	3A	9E	0034C	1
EEA0	05	00	85	00	71	3C	000A	1
EEA0	05	00	85	00	75	BC	00690	1
EEA0	05	01	0					2
EEA0	05	01	04	01	C4	F0	0050	1
EEA0	05	01	08					1
EEA0	05	01	08	00	EE	00	10	1
EEA0	05	01	0A	00				1
EEA0	05	01	0A	00	00	10		1
EEA0	05	01	0A	00	71	3C	0014	2
EEA0	05	01	0A	00	75	78	00698	1
EEA0	05	01	0A	00	BC	F0	004	1
EEA0	05	01	0A	00	BC	F0	0040	1
EEA0	05	01	0A	00	C4	F0	0050	1
EEA0	05	01	0A	00	D6	F0	01A0	1
EEA0	05	01	0A	00	D7	78	000	4
EEA0	05	01	0A	00	D7	78	0000	1
EEA0	05	01	0A	00	D8	78	003C	375
EEA0	05	01	0A	00	D8	78	003D	3
EEA0	05	01	0A	00	D8	78	003D0	1
EEA0	05	01	0A	00	D8	78	003D00	1
EEA0	05	01	0A	00	D9	78	000	154
EEA0	05	01	0A	00	D9	78	0000	30
EEA0	05	01	0A	00	D9	78	003C0	1
EEA0	05	01	0A	00	DA	78	0020	302
EEA0	05	01	0A	00	DA	78	00230	2
EEA0	05	01	0A	00	DB	78	00108	1
EEA0	05	01	0A	00	DB	78	0020	444
EEA0	05	01	0A	00	DB	78	00220	1
EEA0	05	01	0A	00	DC	78	0020	375
EEA0	05	01	0A	00	DD	78	000	746
EEA0	05	01	0A	00	DD	78	0000	256
EEA0	05	01	0A	00	DD	78	00200	1
EEA0	05	01	0A	00	DD	78	002000	1
EEA0	05	01	0A	00	DE	78	0020	169
EEA0	05	01	0A	00	DE	78	00270	6
EEA0	05	01	0A	00	DE	78	002700	2
EEA0	05	01	0A	00	DF	78	0020	25
EEA0	05	01	0A	00	DF	78	00260	1
EEA0	05	01	0A	00	DF	78	002600	1
EEA0	05	01	0A	00	DF	78	002F8	1
EEA0	05	01	0A	00	DF	78	002F80	1
EEA0	05	01	0A	00	E0	78	0024	31
EEA0	05	01	0A	00	E0	78	00250	1
EEA0	05	01	0A	00	E1	3C	00158	1
EEA0	05	01	0A	00	E1	78	0020	21
EEA0	05	01	0A	00	E2	4		1
EEA0	05	01	0A	00	E2	78	0014	1
EEA0	05	01	0A	00	E2	78	0028	70
EEA0	05	01	0A	00	E2	78	002B0	4
EEA0	05	01	0A	00	E2	78	002B00	2
EEA0	05	01	0A	00	E2	78	0050	2
EEA0	05	01	0A	00	E2	7C	0014	2
EEA0	05	01	0A	00	E3	78	0028	53
EEA0	05	01	0A	00	E3	78	002A	2
EEA0	05	01	0A	00	E3	78	002A0	1
EEA0	05	01	0A	00	E4	78	0028	67
EEA0	05	01	0A	00	E5	78	002	185
EEA0	05	01	0A	00	E5	78	0020	53
EEA0	05	01	0A	00	E5	78	00280	2
EEA0	05	01	0A	00	E5	78	002800	1
EEA0	05	01	0A	00	E6	78	0016	2
EEA0	05	01	0A	00	E6	78	002	123
EEA0	05	01	0A	00	E6	78	0020	23
EEA0	05	01	0A	00	E6	78	002E	1
EEA0	05	01	0A	00	E7	78	002	39
EEA0	05	01	0A	00	E8	78	002C	584
EEA0	05	01	0A	00	E8	78	002D0	4
EEA0	05	01	0A	00	E8	78	002D00	2
EEA0	05	01	0A	00	E9	78	002	237
EEA0	05	01	0A	00	E9	78	0020	77
EEA0	05	01	0A	00	E9	78	002C	2
EEA0	05	01	0A	00	E9	78	002C0	4
EEA0	05	01	0A	00	E9	78	004	1
EEA0	05	01	0A	00	EA	78	00D0	124
EEA0	05	01	0A	00	EA	78	00D3	1
EEA0	05	01	0A	00	EA	78	00D30	5
EEA0	05	01	0A	00	EA	78	00D300	2
EEA0	05	01	0A	00	EB	78	00D0	553
EEA0	05	01	0A	00	EB	78	00D2	1
EEA0	05	01	0A	00	EB	78	00D20	6
EEA0	05	01	0A	00	EB	78	00D200	2
EEA0	05	01	0A	00	EC	78	00D0	530
EEA0	05	01	0A	00	EC	78	00D10	8
EEA0	05	01	0A	00	ED	78	00C	139
EEA0	05	01	0A	00	ED	78	00C0	15
EEA0	05	01	0A	00	ED	78	00D0	1
EEA0	05	01	0A	00	ED	78	00D00	1
EEA0	05	01	0A	00	ED	78	00D000	1
EEA0	05	01	0A	00	EE	0		1
EEA0	05	01	0A	00	EE	78	00D0	182
EEA0	05	01	0A	00	EE	78	00D7	2
EEA0	05	01	0A	00	EE	78	00D70	2
EEA0	05	01	0A	00	EF	0		1
EEA0	05	01	0A	00	EF	78	00C	1
EEA0	05	01	0A	00	EF	78	00C0	1
EEA0	05	01	0A	00	EF	78	00D0	306
EEA0	05	01	0A	00	EF	78	00D60	1
EEA0	05	01	0A	00	EF	78	00D600	1
EEA0	05	01	0A	00	F0	78	00D4	111
EEA0	05	01	0A	00	F0	78	00D5	2
EEA0	05	01	0A	00	F0	78	00D50	1
EEA0	05	01	0A	00	F0	79	FFFF	2
EEA0	05	01	0A	00	F1	3C	0014	1
EEA0	05	01	0A	00	F1	78	00D0	373
EEA0	05	01	0A	00	F1	78	00D4	1
EEA0	05	01	0A	00	F1	78	00D40	2
EEA0	05	01	0A	00	F2	78	00D8	402
EEA0	05	01	0A	00	F2	78	00DB0	2
EEA0	05	01	0A	00	F3	78	00D8	71
EEA0	05	01	0A	00	F3	78	00DA0	1
EEA0	05	01	0A	00	F4	4		1
EEA0	05	01	0A	00	F4	78	00D8	67
EEA0	05	01	0A	00	F5	0		1
EEA0	05	01	0A	00	F5	78	008	1
EEA0	05	01	0A	00	F5	78	00C	82
EEA0	05	01	0A	00	F5	78	00C0	13
EEA0	05	01	0A	00	F5	78	00D80	2
EEA0	05	01	0A	00	F6	78	00C	81
EEA0	05	01	0A	00	F6	78	00C0	10
EEA0	05	01	0A	00	F6	78	00DF0	1
EEA0	05	01	0A	00	F7	78	00C	38
EEA0	05	01	0A	00	F7	78	00C0	6
EEA0	05	01	0A	00	F8	78	00DC	193
EEA0	05	01	0A	00	F8	78	00DD0	3
EEA0	05	01	0A	00	F9	78	00C	152
EEA0	05	01	0A	00	F9	78	00C0	52
EEA0	05	01	0A	00	F9	78	00DC0	2
EEA0	05	01	0A	00	FA	78	00C0	111
EEA0	05	01	0A	00	FB	78	00C0	4
EEA0	05	01	0A	00	FC	78	00C0	1
EEA0	05	01	14	00	DB	78	00220	1
EEA0	05	01	14	01	E2	F0	01A	1
EEA0	05	01	14	01	E2	F0	01A0	1
EEA0	05	01	28	03	99	E0	008	1
EEA0	05	02	14	01	D2	F0	00580	1
EEA0	05	02	14	01	D6	F0	01A0	1
EEA0	05	FF	FA	00	D8	78	003C	1
EEA0	06	02	14	01	E4	F0	01B0	1
EEA0	0A	02	14	01	89	E0	00AC	1
EEA0	0A	02	14	01	C4	F0	0050	2
EEA0	0A	02	14	01	D2	F0	004	1
EEA0	32	80	64	64	64	00	004C0	1
EEA0	4A	01	91	91	90	00	0	2
EEA0	63	FE						2
EEA0	64	01	91	91	90	00	01300	1
EEA0	65	0						1
EEA0	65	00						4
EEA0	65	00	41	90	00	02	0	1
EEA0	65	00	64	64	64	00	0	1
EEA0	65	00	64	64	64	00	00	1
EEA0	65	00	64	64	64	00	0024	1
EEA0	65	00	8					1
EEA0	65	00	91	91	90	00	00	1
EEA0	65	00	91	91	90	00	0130	2
EEA0	65	00	C					1
EEA0	65	00	C1	91	90	00	0	1
EEA0	65	00	C8					1
EEA0	65	00	C8	8				1
EEA0	65	00	C8	91	90	00	00	1
EEA0	65	00	C8	C				1
EEA0	65	00	C8	C8				1
EEA0	65	00	C8	C8	64	00	004C0	1
EEA0	65	00	C8	C8	90	00	0	2
EEA0	65	00	C8	C8	C			2
EEA0	65	00	C8	C8	C0	00	0	1
EEA0	65	00	C8	C8	C8	0		1
EEA0	65	00	C8	C8	C8	00	0	4855
EEA0	65	00	C8	C8	C8	00	00	12
EEA0	65	00	C8	C8	C8	00	0020	2
EEA0	65	00	C8	C8	C8	00	004	2
EEA0	65	00	C8	C8	C8	00	0040	2
EEA0	65	00	C8	C8	C8	00	004C	2
EEA0	65	00	C8	C8	C8	00	008	26
EEA0	65	00	C8	C8	C8	00	0080	8
EEA0	65	00	C8	C8	C8	00	009	1
EEA0	65	00	C8	C8	C8	00	0090	1
EEA0	65	00	C8	C8	C8	00	0098	6
EEA0	65	00	C8	C8	C8	00	00980	11
EEA0	65	00	C8	C8	C8	00	009800	1
EEA0	65	00	C8	C8	C8	00	010	2
EEA0	65	00	C8	C8	C8	02	0	1
EEA0	65	00	C8	C9	90	00	0	1
EEA0	65	00	C9	91	90	00	00	1
EEA0	65	00	C9	91	90	00	01300	1
EEA0	65	01	91	91	90	00	04	2
EEA0	65	10	40					1
EEA0	65	10	46	18				1
EEA0	65	10	46	1E	00	00		530
EEA0	65	10	46	1E	00	00	00	3
EEA0	65	10	46	1E	00	00	005A	1
EEA0	6A	00	C8	C8	C8	00	008	1
EEA0	CA	01	91	93	20	00	0	1
EEA0	E5	00	C8	C8	C8	00	008	1

Byte 1 to 10 - Header and 2DDF

First of all, each package appear to start with eight bytes of 0xAA. This is folowed by the two bytes: 0x2DDF. The 2DDF start is not the case for all packages, but for 99.86% of them. I’ve concluded this is most likely some set bytes that all packages start with. The few exceptions could be corrupted data.

AAAAAAAAAAAAAAAA2DD4...

Byte 11 to 12 - Different devices?

In the next 4 bytes things start to get more complex. I suspect that the next two bytes are ids for different devices. Most packages look something like this:

AAAAAAAAAAAAAAAA2DD4075B...

If we presume that the next four bytes after 2DDF are an id for a device, the id’s ‘DCCC’, ‘075B’, and ‘EEA0’ make up 39.03%, 32.74%, and 27.85% of all packages, respectively.

Looking at the rest if the ids, they usually have lower signal strength and there is also a tendeny for them to come from times when I have captured signals from unusual places. This is consistent with the less common ids being other devices further away.

Byte 13 - Two package types?

It seems like the first nibble of byte 13 indicates package type. As can be seen in the data, there seems to be two common types of packages. The first has a 0 in the first nibble of byte 13, and there are many variations on the data that comes in this package type. The second starts with a 6, and it’s a static package where there is a sequence of 0xC8C8C8 towards the end. When looking at timing of packages these two types are sent together, but more on that later.

Bytes 14 and 15 - ???

I don’t know what these are. As can be seen in the data, they don’t vary much. In the tables below any values with under 10 instances have been truncated. The fact that there is a small number of values that these bytes assume makes me think that they are not some sort of continues data, such as a temperature reading. Rather, they might be flags of some kind.

Byte 14

value	count
00	11050
01	33446
02	14
10	1297
20	3014
30	272
80	15

Byte 15

value	count
0A	12534
14	10
16	201
1A	1428
1E	9212
28	3248
2A	3268
30	3533
46	1568
85	13
91	16
C8	14033

Bytes 16 and 17 - Measures

When we look at packages where the first nibble of byte 13 is 0, byte 16 is ‘00’ 93.96% of the time, ‘01’ 0.01% (n=33428). Byte 17, on the other hand, assumes 89 different values, fairly evenly spread. I think that these signals are giving some sort of sensor reading which is 2 bytes long. Usually the sensor reading is less than 255 and only one byte is needed, making byte 16 0x00. But occasionally, the value goes over 255 and byte 16 becomes 01.

Data analysis

If we assume for a minute that bytes 16 and 17 are sensor values; we actually have some data to analyse. When plotting the values for these bytes, they did indeed appear to be some sort of sensor reading. One possibility is that they are temperature readings. If so, perhaps the value 260 actually means 26.0 degrees celsius? To investigate this further, I setup a Raspberry Pi to collect data from a few temperature sensors that I knew to be temperature sensors as well as my mystery signals. The shell script used to collect the data can be found here.

The known temperature sensors were Acurite Tower and Nexus and they were both transmitting on 433MHz and rtl_433 had decoders for them. Presumably they are both outside, and probably in the sun, because they peaked at 36 degrees. I checked a weather station in the area and they had recorded peak temperatures in the high 20s during the same period.

Mystery signals and known temperature - all data

It’s clear that the mystery signals are approximately following the know temperature sensors. We see that both in the 24 hour cycle and as the weather gets warmer and colder over several days. The mystery signals do not fluctuate as much, though, which may be because they could be indoor temperature sensors.

When we look closely at mystery-DCCC, we can see that there is often a small nudge in the curve late in the evening, around 23:00. In the graph below, we see that this nudge is around 01:00 on Saturday night. Could this be someones bedtime?

Mystery signals and known temperature - all 4 days

Conclusion

Much remains unknown about these signals. They are still mysterious. One could only speculate what the different package types might be, and most of the packages are unknown. However, it appears probably that byte 16 and 17 are in fact temparature readings from an indoor thermometer.

As for the decoder I wanted to build for rtl_433, it will have to wait.