Test pattern yields a 1011 Hz tone at reference level

[Quasar_A]

1031 Hz is the tone for P25 phase 2, NXDN and DMR

Anritsu- LMR Master™ Land Mobile Radio Modulation Analyzer (Model:S412E) - Ino Measure Co., Ltd

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I know it. Also, test equipment supports Q.153 test pattern. And my question, which document describe it?

Example: APCO-P25 in ANSI/TIA-102.CAAA have fixed frame format for 1011 Hz tone (it is discussed early, see attach). It is have full description for this packets. Frame Sync, NAC, Talkroup, Source address and etc... Which document describe this detailes for DMR? Which Group? Which Colour Code? Which Source Addr?

 

[d_w_b]

> test equipment supports Q.153 test pattern. And my question, which document describe...
> ... full description for this packets ... for DMR?
> Which Group? Which Colour Code? Which Source Addr?

The O.153 test pattern is a 511 bit pseudorandom bit pattern commonly defined. See ETSI TS 102 361-1: “Electromagnetic compatibility and Radio spectrum Matters (ERM); Digital Mobile Radio (DMR) Systems; Part 1: DMR Air Interface (AI) protocol” for details about the DMR frame and field formats. The synchronization fields are defined in clause 9.1.1 of TS 102 361-1 [V1.4.1 (2006-12)]. For quick reference they are: MS sourced voice, MS sourced data, BS sourced voice, BS sourced data depending upon the type of frame you want to use. Bursts A-F have specific embedded bits as defined for messaging and are encoded with Quadratic Residue. Colour Code may be selected for your application. Also Opcode (Group Call), MFID, source destination. I recommend All-Call / Broadcast. What equipment do you want your SDR test pattern to interface with?

 

[RFI-EMI-GUY]

This thread might be informative as the topic of DMR pattern resting came up.Look for comments by VA2NA .

https://groups.yahoo.com/neo/groups...DdnRwYwRzdGltZQMxNTA3OTIyMDI1BHRwY0lkAzE1MDQy

 

[RFI-EMI-GUY]

This thread might be informative as the topic of DMR pattern resting came up.Look for comments by VA2NA .

https://groups.yahoo.com/neo/groups...DdnRwYwRzdGltZQMxNTA3OTIyMDI1BHRwY0lkAzE1MDQy

also
http://media.wfonline.com.au/image_...Understanding and testing of DMR standard.pdf

 

[Quasar_A]

Thank you for your replies. I am working on simple test (or monitor) tool based on SDR (SDR-RTL at present time and Ettus in future for TX). I have added modes for monitoring DMR (only repeater uplink channel) and APCO-P25 signals to Gqrx app. At present time, my version supports only voice transmissions. It is shows groups, source id and plays voice from air. Next step will be add TX path for generation various signals for digital radio.

RFI-EMI-GUY
Your link to yahoo is very close to theme of my work.

 

[RFI-EMI-GUY]

If the code for the patterns could be run is a Raspberry Pi , Arduino or other PIC based platform, and the four level C4FM voltages generated in a DAC, one could plug this pattern generator into nearly any RF service monitor or signal generator to perform receiver signal measurements by simply generating the correct 4 level FM deviation points, and selecting some color codes, etc. In the program.

There are a few test equipment manufacturers already incorporating the code in their pricey new products. It could be that ETSI is keeping the specs close to home so these manufacturers will build DMR test gear.

If the 1031 Hz pattern is same as for P25 phase 2, then one could assume the same pattern code could be grafted into DMR air interface. The Vocoder is same.


Getting back to color codes, talk group ID'S, NAC etc, those variables would have to be selected when testing to match the receiver, subscriber, repeater, simplex etc.

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[Quasar_A]

I have sniffed air and found this patterns for O.153 test pattern, maybe it will interesting for someone. It is compatible motorola and Aeroflex 3920

For my convenience sync moved from center of frame to frame start.

const uint8_t DMR_O_153_pattern[6][33] = {
		{
				0x7F, 0x7D, 0x5D, 0xD5, 0x7D, 0xFD, /*Sync*/
				0xFF, 0x83, 0xDF, 0x17, 0x32, 0x09, 0x4E, 0xD1, 0xE7, 0xCD, 0x8A, 0x91,
				0xC6, 0xD5, 0xC4, 0xC4, 0x40, 0x21, 0x18, 0x4E, 0x55, 0x86, 0xF4, 0xDC,
				0x8A, 0x15, 0xA7 },

		{
				0xE2, 0x1E, 0x1E, 0x14, 0x05, 0x95, /*Sync offset*/
				0xEC, 0x92, 0xDF, 0x93, 0x53, 0x30, 0x18, 0xCA, 0x34, 0xBF, 0xA2, 0xC7,
				0x59, 0x67, 0x8F, 0xBA, 0x0D, 0x6D, 0xD8, 0x2D, 0x7D, 0x54, 0x0A, 0x57,
				0x97, 0x70, 0x39 },

		{
				0xE6, 0x1E, 0x1E, 0x1E, 0x1D, 0x70, /*Sync offset*/
				0xD2, 0x7A, 0xEA, 0x24, 0x33, 0x85, 0xED, 0x9A, 0x1D, 0xE1, 0xFF, 0x07,
				0xBE, 0x2E, 0x64, 0x12, 0x9D, 0xA3, 0xCF, 0x9B, 0x15, 0x23, 0x8D, 0xAB,
				0x89, 0x88, 0x80 },

		{ 		0xE6, 0x0C, 0x0C, 0x27, 0x1E, 0x70, /*Sync offset*/
				0x42, 0x30, 0x9C, 0xAB, 0x0D, 0xE9, 0xB9, 0x14, 0x2B, 0x4F, 0xD9, 0x25,
				0xBF, 0x26, 0xA6, 0x60, 0x31, 0x94, 0x69, 0x7F, 0x45, 0x8E, 0xB2, 0xCF,
				0x1F, 0x74, 0x1A },

		{ 		0xE4, 0x0F, 0x27, 0x2E, 0x2D, 0x03, /*Sync offset*/
				0xDB, 0xB0, 0x5A, 0xFA, 0xA8, 0x14, 0xAF, 0x2E, 0xE0, 0x73, 0xA4, 0xF5,
				0xD4, 0x48, 0x67, 0x0B, 0xDB, 0x34, 0x3B, 0xC3, 0xFE, 0x0F, 0x7C, 0x5C,
				0xC8, 0x25, 0x3B },

		{ 		0xE0, 0x00, 0x00, 0x00, 0x00, 0xE6, /*Sync offset*/
				0x47, 0x9F, 0x36, 0x2A, 0x47, 0x1B, 0x57, 0x13, 0x11, 0x00, 0x84, 0x61,
				0x39, 0x56, 0x1B, 0xD3, 0x72, 0x28, 0x56, 0x9F, 0xB2, 0x4B, 0x7E, 0x4D,
				0x4C, 0xC0, 0x63 } };

 

[Project25_MASTR]

I have sniffed air and found this patterns for O.153 test pattern, maybe it will interesting for someone. It is compatible motorola and Aeroflex 3920

For my convenience sync moved from center of frame to frame start.

const uint8_t DMR_O_153_pattern[6][33] = {
		{
				0x7F, 0x7D, 0x5D, 0xD5, 0x7D, 0xFD, /*Sync*/
				0xFF, 0x83, 0xDF, 0x17, 0x32, 0x09, 0x4E, 0xD1, 0xE7, 0xCD, 0x8A, 0x91,
				0xC6, 0xD5, 0xC4, 0xC4, 0x40, 0x21, 0x18, 0x4E, 0x55, 0x86, 0xF4, 0xDC,
				0x8A, 0x15, 0xA7 },

		{
				0xE2, 0x1E, 0x1E, 0x14, 0x05, 0x95, /*Sync offset*/
				0xEC, 0x92, 0xDF, 0x93, 0x53, 0x30, 0x18, 0xCA, 0x34, 0xBF, 0xA2, 0xC7,
				0x59, 0x67, 0x8F, 0xBA, 0x0D, 0x6D, 0xD8, 0x2D, 0x7D, 0x54, 0x0A, 0x57,
				0x97, 0x70, 0x39 },

		{
				0xE6, 0x1E, 0x1E, 0x1E, 0x1D, 0x70, /*Sync offset*/
				0xD2, 0x7A, 0xEA, 0x24, 0x33, 0x85, 0xED, 0x9A, 0x1D, 0xE1, 0xFF, 0x07,
				0xBE, 0x2E, 0x64, 0x12, 0x9D, 0xA3, 0xCF, 0x9B, 0x15, 0x23, 0x8D, 0xAB,
				0x89, 0x88, 0x80 },

		{ 		0xE6, 0x0C, 0x0C, 0x27, 0x1E, 0x70, /*Sync offset*/
				0x42, 0x30, 0x9C, 0xAB, 0x0D, 0xE9, 0xB9, 0x14, 0x2B, 0x4F, 0xD9, 0x25,
				0xBF, 0x26, 0xA6, 0x60, 0x31, 0x94, 0x69, 0x7F, 0x45, 0x8E, 0xB2, 0xCF,
				0x1F, 0x74, 0x1A },

		{ 		0xE4, 0x0F, 0x27, 0x2E, 0x2D, 0x03, /*Sync offset*/
				0xDB, 0xB0, 0x5A, 0xFA, 0xA8, 0x14, 0xAF, 0x2E, 0xE0, 0x73, 0xA4, 0xF5,
				0xD4, 0x48, 0x67, 0x0B, 0xDB, 0x34, 0x3B, 0xC3, 0xFE, 0x0F, 0x7C, 0x5C,
				0xC8, 0x25, 0x3B },

		{ 		0xE0, 0x00, 0x00, 0x00, 0x00, 0xE6, /*Sync offset*/
				0x47, 0x9F, 0x36, 0x2A, 0x47, 0x1B, 0x57, 0x13, 0x11, 0x00, 0x84, 0x61,
				0x39, 0x56, 0x1B, 0xD3, 0x72, 0x28, 0x56, 0x9F, 0xB2, 0x4B, 0x7E, 0x4D,
				0x4C, 0xC0, 0x63 } };

For reference it is also compatible with General Dynamics/Freedom Communications R8000 and R8100 monitors.

 

[Quasar_A]

For reference it is also compatible with General Dynamics/Freedom Communications R8000 and R8100 monitors.

[offtopic]
May be you know, which price for this monitors? Is it cheaper than 3920?
[/offtopic]

 

[Project25_MASTR]

[offtopic]

May be you know, which price for this monitors? Is it cheaper than 3920?

[/offtopic]

Honestly, I think they are about the same. I’m one of those guys who you don’t issue an Aeroflex monitor to…simply because I won’t use it unless it’s part of a service contract.


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