unicore UM960L All Constellation Multi Frequency High Madaidaicin RTK Matsayin Mai Amfani da Module
Tarihin Bita
| Sigar | Tarihin Bita | Kwanan wata |
| R1.0 | Sakin farko | Agusta, 2022 |
| R1.1 | Sabunta bayanin Pin14 Sabunta sashin 2.1 DimensionsAdd sashe 3.1 An Ba da Shawarar Ƙananan Ƙirar Ƙirƙira Sashe 3.2 Ƙirƙirar Ciyarwar Eriya Inganta sashin 3.3 Power-on da Power-offAdd sashe 3.5 Nasihar Kunshin PCB Nasiha. | Maris, 2022 |
Sanarwa Hakki na Doka
Wannan littafin yana ba da bayanai da cikakkun bayanai kan samfuran Unicore Communication, Inc. ("Unicore") da ake magana a kai.
Dukkan haƙƙoƙi, take da sha'awar wannan takaddar da bayanai kamar bayanai, ƙira, shimfidu da ke cikin wannan jagorar an tanadar su gabaɗaya, gami da amma ba'a iyakance ga haƙƙin mallaka, haƙƙin mallaka, alamun kasuwanci da sauran haƙƙoƙin mallaka kamar yadda dokokin gudanarwa masu dacewa zasu iya bayarwa, da kuma Irin waɗannan haƙƙoƙin na iya haɓakawa kuma a amince da su, rajista ko ba da su daga duk bayanan da aka ambata ko kowane ɓangaren sa ko kowane haɗin waɗannan sassan.
Unicore yana riƙe da alamun kasuwanci na "和芯星通", "UNICORECOMM" da sauran sunan kasuwanci, alamar kasuwanci, icon, tambari, sunan alama da/ko alamar sabis na samfuran Unicore ko jerin samfuran su da ake magana a kai a cikin wannan littafin ”).
Wannan littafin ko wani sashe nasa, ba za a yi la'akari da shi azaman, ko dai a bayyane, a fayyace, ta estoppel ko kowane nau'i, bayarwa ko canja wurin haƙƙin Unicore da/ko buƙatun (ciki har da amma ba'a iyakance ga haƙƙin alamar kasuwanci da aka ambata ba), a cikin gaba daya ko a bangare.
Disclaimer
An ba da bayanin da ke cikin wannan littafin “kamar yadda yake” kuma an yi imanin gaskiya ne kuma daidai ne a lokacin bugawa ko sake fasalinsa. Wannan littafin ba ya wakilta, kuma a kowane hali, ba za a iya fassara shi azaman alƙawura ko garanti ta ɓangaren Unicore ba dangane da dacewa don wata manufa/amfani, daidaito, aminci da daidaiton bayanan da ke ƙunshe a ciki.
Bayani, kamar ƙayyadaddun samfur, kwatancen, fasali da jagorar mai amfani a cikin wannan jagorar, Unicore za su iya canzawa a kowane lokaci ba tare da sanarwa ta farko ba, wanda ƙila ba ta yi daidai da takamaiman bayanin samfurin da ka saya ba.
Idan kun sayi samfur ɗinmu kuma ku gamu da wani rashin daidaituwa, da fatan za a tuntuɓe mu ko mai ba da izini na gida don mafi sabuntar sigar wannan jagorar tare da kowane ƙari ko corrigenda
Gabatarwa
Wannan daftarin aiki yana bayyana bayanan kayan masarufi, fakiti, ƙayyadaddun bayanai da kuma amfani da kayan aikin Unicore UM960L.
Masu Karatu
Wannan takaddar ta shafi ƙwararrun ƙwararrun ƙwararrun masu karɓar GNSS
Gabatarwa
UM960L sabon ƙarni ne na GNSS babban madaidaicin matsayi na RTK module daga Unicore. Yana goyan bayan duk ƙungiyoyin taurari da mitoci masu yawa, kuma yana iya waƙa da GPS L1/L2/L5 + BDS B1I/B2I/B3I + GLONASS G1/G2 + Galileo E1/E5a/E5b + QZSS L1/L2/L5 lokaci guda. Ana amfani da tsarin musamman a cikin lura da haɗarin ƙasa, sa ido na lalacewa, da ingantaccen GIS.
UM960L ya dogara ne akan NebulasⅣTM, GNSS SoC wanda ke haɗa RF-baseband da madaidaicin algorithms. Bayan haka, SoC tana haɗa CPU dual-core, babban mai sarrafa ma'aunin iyo mai saurin gudu da mai sarrafa RTK tare da ƙirar ƙarancin ƙarfin 22 nm, kuma yana tallafawa manyan tashoshi 1408. Duk waɗannan da ke sama suna ba da damar sarrafa sigina mai ƙarfi.
UM960L yana da ƙaramin girman 16.0 mm × 12.2 mm. Yana ɗaukar pads na SMT, yana goyan bayan daidaitaccen zaɓi-da-wuri, kuma yana goyan bayan haɗin kai mai sarrafa kansa na sake kwarara.
Bugu da ƙari, UM960L yana goyan bayan musaya kamar UART, I2C, wanda ke biyan bukatun abokan ciniki a cikin aikace-aikace daban-daban.
Hoto 1-1 UM960L Module
Mabuɗin Siffofin
- Madaidaicin madaidaici, ƙaƙƙarfan girman da ƙarancin wutar lantarki
- Dangane da sabon ƙarni GNSS SoC -NebulasIVTM, tare da RF-baseband da babban madaidaicin algorithms hadedde.
- 16.0 mm × 12.2 mm × 2.4 mm, na'urar hawan saman
- Yana goyan bayan duk-taron mitoci da yawa akan guntu RTK mafita
- Yana goyan bayan GPS L1/L2/L5 + BDS B1I/B2I/B3I + GLONASS G1/G2 + Galileo E1/E5b/E5a + QZSS L1/L2/L5
- Duk ƙungiyoyin taurari da mitoci masu yawa na RTK, da fasahar sarrafa RTK ta ci gaba
- Bibiya mai zaman kanta na mitoci daban-daban, da 60 dB narrowband anti-jamming
Maɓalli Maɓalli
Tebur 1-1 Ƙayyadaddun Fasaha
Bayanan asali
| Tashoshi | Tashoshi 1408, dangane da NebulasIVTM | |
| Taurari | GPS/BDS/GLONASS/Galileo/QZSS | |
| Yawanci | GPS: L1C/A, L2P(W), L2C, L5 BDS: B1I, B2I, B3IGLONASS: G1, G2Galileo: E1, E5b, E5a QZSS: L1, L2, L5 | |
Ƙarfi
| Voltage | +3.0 V zuwa + 3.6 V DC |
| Amfanin Wuta | 415mW (Na al'ada) |
Ayyuka
| Matsayi Daidaito | Matsayi Daya (RMS) | Tsayi: 1.5m | ||
| Tsaye: 2.5m | ||||
| DGPS (RMS) | Tsayi: 0.4m | |||
| Tsaye: 0.8m | ||||
| RTK (RMS) | A kwance: 0.8 cm + 1 ppm | |||
| A tsaye: 1.5 cm + 1 ppm | ||||
| Daidaiton Dubawa (RMS) | BDS | GPS | GLONASS | Galileo |
| B1I/ L1C/A/G1/E1 | 10 cm | 10 cm | 10 cm | 10 cm |
| B1I/ L1C/A /G1/E1 Matakin jigilar kaya | mm1 ku | mm1 ku | mm1 ku | mm1 ku |
Ƙayyadaddun Jiki
| Kunshin | 24 pin LGA |
| Girma | 16.0 mm × 12.2 mm × 2.4 mm |
Ƙayyadaddun Muhalli
| Yanayin Aiki | 40 ° C zuwa +85 ° C |
| Ajiya Zazzabi | 55 ° C zuwa +95 ° C |
| Danshi | 95% Babu condensation |
| Jijjiga | GJB150.16A-2009; MIL-STD-810F |
| Girgiza kai | GJB150.18A-2009; MIL-STD-810F |
Tashoshi masu aiki
| UART x 3 |
| Ina 2C*x1 |
Tsarin zane
Hoto 1-2 UM960L Tsare-tsare
- Sashe na RF
Ana tace mai karɓa da haɓaka siginar GNSS daga eriya ta hanyar kebul na coaxial. Bangaren RF yana jujjuya siginar shigarwar RF zuwa siginar IF, kuma yana jujjuya siginonin IF na analog zuwa sigina na dijital da ake buƙata don guntun NebulasIVTM. - NebulasIVTM SoC
NebulasIVTM shine sabon ƙarni na UNICORECOMM babban madaidaicin GNSS SoC tare da ƙirar ƙarancin ƙarfin 22 nm, yana tallafawa duk ƙungiyoyin taurari, mitoci da yawa da tashoshi 1408 super. Yana haɗa nau'in CPU dual-core, babban mai sarrafa ma'auni mai iyo mai sauri da kuma na'ura mai sarrafa RTK, wanda zai iya cika madaidaicin sarrafa tushe na tushe da matsayi na RTK da kansa. - Hanyoyin Sadarwar Waje
Matsalolin waje na UM960L sun haɗa da UART, I 2C PPS, EVENT, RESET_N, da sauransu.
Hardware
Ma'anar Pin
Hoto 2-1 UM960L Ma'anar Fil
Tebur 2-1 Ma'anar Fil
| A'a. | Pin | I/O | Bayani |
| 1 | RSV | - | Ajiye, dole ne ya kasance yana iyo; ba zai iya haɗa ƙasa ko samar da wutar lantarki ko na gefen I/O ba |
| 2 | RSV | - | Ajiye, dole ne ya kasance yana iyo; ba zai iya haɗa ƙasa ko samar da wutar lantarki ko na gefen I/O ba |
| 3 | PPS | O | Pulse a sakan daya, tare da daidaitacce faɗin bugun jini da polarity |
| 4 | FARUWA | I | Alamar taron, tare da daidaitacce mita da polarity |
| 5 | BIF | - | Ayyukan da aka gina; an ba da shawarar don ƙara wurin gwaji ta hanyar rami da 10 kΩ resistor mai cirewa; ba zai iya haɗa ƙasa ko samar da wutar lantarki ko na gefen I/O ba, amma yana iya yin iyo. |
| 6 | MUX2 | O | UART2 fitarwa |
| 7 | Saukewa: RXD2 | I | UART2 shigarwa |
| 8 | SAKETA_N | I | Sake saitin tsarin; Low mai aiki. Lokacin aiki bai kamata ya zama ƙasa da 5 ms ba. |
| 9 | VCC_RF1 | O | Lantarki na LNA na waje |
| 10 | GND | - | Kasa |
| 11 | ANT_IN | I | Shigar da siginar eriya GNSS |
| 12 | GND | - | Kasa |
| 13 | GND | - | Kasa |
| 14 | RSV | - | Ajiye; ba zai iya haɗa ƙasa ko samar da wutar lantarki ko na'urar fitarwa ba |
| 15 | Saukewa: RXD3 | I | UART3 shigarwa |
| 16 | MUX3 | O | UART3 fitarwa |
| 17 | BIF | - | Ayyukan da aka gina; an ba da shawarar don ƙara wurin gwaji ta hanyar rami da 10 kΩ resistor mai cirewa; ba zai iya haɗa ƙasa ko samar da wutar lantarki ko na gefen I/O ba, amma yana iya yin iyo. |
| 18 | SDA | I/O | Bayanan Bayani na I2C |
| 19 | SCL | I/O | I2C agogo |
| 20 | MUX1 | O | UART1 fitarwa |
| 21 | Saukewa: RXD1 | I | UART1 shigarwa |
| 22 | V_BCKP2 | I | Lokacin da aka yanke babban wutar lantarki VCC, V_BCKP yana ba da wuta ga RTC da rijistar da ta dace. Matsayin da ake buƙata: 2.0 V ~ 3.6 V, kuma aiki na yanzu bai wuce 60 μA a 25 ° C ba. Idan baku amfani da aikin farawa mai zafi, haɗa V_BCKP zuwa VCC. KAR KA haɗa shi zuwa ƙasa ko barin shi yana iyo. |
| 23 | VCC | I | Ƙarar voltage |
| 24 | GND | - | Kasa |
Ƙimar Lantarki
Cikakkun Mahimman Kima
Tebur 2-2 Cikakken Matsakaicin Matsakaicin Mahimmanci
| Siga | Alama | Min. | Max. | Naúrar |
| Samar da Wutar Lantarki (VCC) | VCC | -0.3 | 3.6 | V |
| Voltage Shigarwa | Vin | -0.3 | 3.6 | V |
| Shigar da Siginar Eriya GNSS | ANT_IN | -0.3 | 6 | V |
| Ƙarfin shigar da RF na Eriya | ikon shigar da ANT_IN | +10 | dBm | |
| Samar da Wutar Lantarki na LNA na waje | VCC_RF | -0.3 | 3.6 | V |
| VCC_RF Fitowar Yanzu | ICC_RF | 100 | mA | |
| Ajiya Zazzabi | Tstg | -55 | 95 | °C |
Yanayin Aiki
Tebur 2-3 Yanayin Aiki
| Siga | Alama | Min. | Buga | Max. | Naúrar | Sharadi |
| Samar da Wutar Lantarki (VCC) | VCC | 3.0 | 3.3 | 3.6 | V | |
| Matsakaicin Ripple Voltage | Vrpp | 0 | 50 | mV | ||
| Aiki Yanzu 3 | Iopr | 126 | 218 | mA | VCC = 3.3 V | |
| Fitowar VCC_RF Voltage | VCC_RF | VCC-0.1 | V | |||
| VCC_RF Fitowar Yanzu | ICC_RF | 50 | mA | |||
| Yanayin Aiki | Topr | -40 | 85 | °C | ||
| Amfanin Wuta | P | 415 | mW |
Farashin IO
Tebur 2-4 IO Mashigin
| Siga | Alama | Min. | Buga | Max. | Naúrar | Sharadi |
| InputVoltage | Vin_low | 0 | VCC × 0.2 | V | ||
| InputVol mai girmatage | Vin_high | VCC × 0.7 | VCC + 0.2 | V | ||
| Ƙarƙashin fitarwaVoltage | Vout_low | 0 | 0.45 | V | Ina = 4 mA | |
| Babban Matsayin fitarwaVoltage | Vout_high | VCC - 0.45 | VCC | V | Ina = 4 mA |
Siffar Antenna
Tebur 2-5 Siffar Eriya
| Siga | Alama | Min. | Buga | Max. | Naúrar | Sharadi |
| Mafi kyawun Ribar Shigarwa | Gant | 18 | 30 | 36 | dB |
3 Tun da samfurin yana da capacitors a ciki, inrush halin yanzu yana faruwa yayin kunna wuta. Ya kamata ku yi la'akari a cikin ainihin yanayin don bincika tasirin wadatar voltage drop lalacewa ta hanyar inrush halin yanzu a cikin tsarin
Girma
Tebur 2-6 Girma
| Alama | Min. (mm) | Buga (mm) | Max. (mm) |
| A | 15.80 | 16.00 | 16.50 |
| B | 12.00 | 12.20 | 12.70 |
| C | 2.20 | 2.40 | 2.60 |
| D | 0.90 | 1.00 | 1.10 |
| E | 0.20 | 0.30 | 0.40 |
| F | 1.40 | 1.50 | 1.60 |
| G | 1.00 | 1.10 | 1.20 |
| H | 0.70 | 0.80 | 0.90 |
| J | 3.20 | 3.30 | 3.40 |
| N | 2.90 | 3.00 | 3.10 |
| P | 1.30 | 1.40 | 1.50 |
| R | 0.99 | 1.00 | 1.10 |
| X | 0.72 | 0.82 | 0.92 |
| φ | 0.99 | 1.00 | 1.10 |
Hoto 2-2 UM960L Girman Injini
Tsarin Hardware
Ɗaukaka Ƙirar Ƙira
Hoto 3-1 UM960L Ƙananan Ƙira
Bayani:
- L1: 68 nH RF inductor a cikin kunshin 0603 ana bada shawarar
- C1: 100 nF + 100 pF capacitors da aka haɗa a layi daya ana ba da shawarar
- C2: Ana bada shawarar capacitor 100 pF
- C3: n × 10 μF + 1 × 100 nF capacitors da aka haɗa a layi daya ana ba da shawarar, kuma jimlar inductance yakamata ya zama ƙasa da 30 μF
- R1: Ana ba da shawarar resistor 10 kΩ
Tsarin Ciyarwar Eriya
UM960L kawai yana goyan bayan ciyar da eriyal daga waje na ƙirar maimakon ciki. Ana ba da shawarar yin amfani da na'urori masu ƙarfi da ƙarfi kuma waɗanda zasu iya jure babban voltage. Hakanan ana iya amfani da bututun fitar da iskar gas, varistor, bututun TVS da sauran na'urorin kariya masu ƙarfi a cikin da'irar samar da wutar lantarki don ƙara kare tsarin daga yajin walƙiya da haɓaka.
Idan ciyarwar eriya ta ba da ANT_BIAS da babban kayan aikin VCC suna amfani da layin wutar lantarki iri ɗaya, ESD, hauhawar jini da overvol.tage daga eriya zai yi tasiri akan VCC, wanda zai iya haifar da lalacewa ga tsarin. Don haka, ana ba da shawarar zayyana layin dogo mai zaman kansa don ANT_BIAS don rage yuwuwar lalacewar tsarin.
Hoto 3-2 UM960L Wurin Maganar Ciyarwar Eriya ta Waje
Bayani:
- L1: feed inductor, 68nH RF inductor a cikin kunshin 0603 ana bada shawarar.
- C1: decoupling capacitor, ana bada shawarar haɗa capacitors biyu na 100nF/100pF a layi daya.
- C2: DC blocking capacitor, shawarar 100pF capacitor.
- Ba a ba da shawarar ɗaukar VCC_RF azaman ANT_BIAS don ciyar da eriya ba (VCC_RF ba a inganta shi don yajin walƙiya da hana ƙuri'a ba saboda ƙaƙƙarfan girman ƙirar).
- D1: ESD diode, zaɓi na'urar kariya ta ESD wacce ke goyan bayan manyan sigina (sama da 2000 MHz).
- D2: TVS diode, zaɓi TVS diode tare da cl mai dacewaampƙayyadaddun ƙayyadaddun bayanai bisa ga buƙatun ciyarwar voltage da eriya voltage.
Ƙaddamarwa da Ƙarfafawa
VCC
- Matakin farko na VCC lokacin kunna wuta yakamata ya zama ƙasa da 0.4 V.
- VCC ramp lokacin da wutar lantarki ya kamata ya zama monotonic, ba tare da faranti ba.
- Voltages na undershoot da ringing ya kamata su kasance cikin 5% VCC.
- Tsarin wutar lantarki na VCC: Tazarar lokaci daga 10% tashi zuwa 90% dole ne ya kasance tsakanin 100 μs zuwa 1 ms.
- Tazarar lokaci akan wuta: Tazarar lokaci tsakanin kashe wutar lantarki (VCC <0.4 V) zuwa na gaba dole ne ya fi 500 ms.
V_BCKP
- Matakin farko na V_BCKP lokacin kunna wuta yakamata ya zama ƙasa da 0.4 V.
- V_BCKP ramp lokacin da wutar lantarki ya kamata ya zama monotonic, ba tare da faranti ba.
- Voltages na undershoot da ringing ya kamata su kasance tsakanin 5% V_BCKP.
- V_BCKP ikon-kan waveform: Tazarar lokaci daga 10% tashi zuwa 90% dole ne ya kasance tsakanin 100 μs zuwa 1 ms.
- Tazarar lokacin wutar lantarki: Tazarar lokacin tsakanin kashe wutar lantarki (V_BCKP <0.4 V) zuwa na gaba dole ne ya fi 500 ms.
Grounding and Heat Dissipation
Hoto na 3-3 Grounding and Heat Dissip Pad
Pads 55 a cikin rectangle a cikin Hoto 3-3 don ƙaddamarwa ne da kuma zubar da zafi.
A cikin ƙirar PCB, dole ne a haɗa su zuwa ƙasa mai girma don ƙarfafa zafi.
Shawarwari na Fakitin PCB
Dubi adadi mai zuwa don shawarar fakitin PCB na ƙirar UM960L.
Hoto 3-4 An Shawarar Tsarin Kunshin PCB
Bayani:
- Don dacewar gwaji, an ƙera ginshiƙan siyar da fitilun dogo, wanda ya zarce iyakar module ɗin da yawa. Domin misaliampda:
- Pads da aka nuna a matsayin daki-daki C sun fi 1.50 mm tsayi fiye da iyakar module.
- Kushin da aka nuna a matsayin daki-daki A shine 0.49 mm tsayi fiye da iyakar module. Yana da ɗan gajeren gajere kamar yadda yake da kushin fil na RF, don haka muna fatan alamar da ke saman ta zama gajere kamar yadda zai yiwu don rage tasirin kutse.
- Domin a rage yadda ya kamata na solder gada a lokacin soldering, fil pads an tsara kunkuntar fiye da fil. Koyaya, kushin da aka nuna daki-daki A yana da nisa iri ɗaya da fil ɗin, kamar yadda muke fatan juriya ta ci gaba da yuwuwa a fil ɗin RF.
Bukatar samarwa
Shawarar siyar da yanayin zafin jiki shine kamar haka:
Hoto 4-1 Yanayin Siyar (Ba tare da jagora ba)
Tashin Zazzabi Stage
- Matsayi mai girma: Max. 3 °C/s
- Hawan zafin jiki: 50 ° C zuwa 150 ° C
Preheating Stage
- Lokacin zafi: 60s zuwa 120 s
- Preheating zafin jiki: 150 ° C zuwa 180 ° C
Reflux Stage
- Sama da zafin jiki na narkewa (217 ° C): 40 s zuwa 60 s
- Mafi girman zafin jiki don siyarwa: bai fi 245 ° C ba
Sanyi Stage
- Sanyi gangara: Max. 4 °C/s
- Domin hana fadowa a kashe a lokacin soldering na module, kada a sayar da shi a baya na jirgin a lokacin zane, wato, mafi alhẽri ba ta hanyar soldering sake zagayowar sau biyu.
- Saitin zafin jiki ya dogara da yawancin abubuwan da masana'antu, kamar nau'in kayan manna, mai kauri mai kauri, da sauransu.
- Tunda zafin zafin dalma ke da ƙarancin ƙaranci, idan ana amfani da wannan hanyar, da fatan za a ba da fifiko ga sauran abubuwan da ke kan allo.
- Bude stencil yana buƙatar biyan buƙatun ƙirar ku kuma bi ƙa'idodin bincike. An ba da shawarar kauri na stencil ya zama 0.15 mm.
Marufi
Bayanin Label
Hoto 5-1 Bayanin Label
Kunshin samfur
Tsarin UM960L yana amfani da tef mai ɗaukar hoto da reel (wanda ya dace da na'urori masu tsayi na al'ada), an haɗa su a cikin jakunkuna masu ƙyalli na aluminum foil antistatic, tare da desiccant a ciki don hana danshi. Lokacin amfani da tsarin siyar da sake kwarara zuwa samfuran siyar, da fatan za a bi ƙa'idodin IPC don gudanar da yanayin zafi da sarrafa zafi. Kamar yadda kayan marufi kamar tef ɗin mai ɗaukar hoto zai iya jure yanayin zafin jiki na 55 ° C kawai, za a cire kayayyaki daga kunshin yayin yin burodi.
Hoto 5-2 Kunshin UM960L
Tebur 5-1 Bayanin Kunshin
| Abu | Bayani |
| Lambar Module | 500 guda/reel |
| Girman Reel | Tire: 13 ″ Diamita na waje: 330 mm Diamita na ciki: 100 mm Nisa: 24 mm Kauri: 2.0 mm |
| Tef ɗin ɗauka | Tazara tsakanin (tsakiya zuwa tsakiya): 20 mm |
An ƙididdige UM960L a matakin MSL 3. Koma zuwa daidaitattun IPC / JEDEC J-STD-033 don buƙatun buƙatun da aiki. Kuna iya samun dama ga website www.jedec.org don samun ƙarin bayani.
Rayuwar shiryayye na samfurin UM960L wanda aka kunshe a cikin buhunan buhunan foil foil na alumini mai ɗorewa shine shekara guda.
Unicore Communications, Inc. girma
F3, No.7, Hanyar Gabas ta Fengxian, Haidian, Beijing, PRChina, 100094
www.unicorecomm.com
Waya: 86-10-69939800
Fax: 86-10-69939888
info@unicorecomm.com
Takardu / Albarkatu
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unicore UM960L Duk Constellation Multi Frequency High Madaidaicin Matsayin Matsayin RTK Module [pdf] Manual mai amfani Um960L duk babban mitar mita'idodin babban daidaitaccen yanayin aiki, mitar mitar muni, mitcationit madaidaicin daidaitaccen tsari, babban daidaitaccen tsari Module Matsayi, Madaidaicin Matsayin Matsayin RTK, Matsayin Matsayi na RTK, Matsayin Matsayi |
