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Wavetek IS-136 MS, Operating Instructions Manual, Page: 1 / 58

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Software Option  897 926/897 807

Operating Instructions

50_is136

Doc. Version: 9907-121-A for IS-136 MS

Doc. Version: 9611-110-A for IS-136 DB

Acterna Muenchen GmbH, Gutenbergstr. 2 – 4, D-85737 Ismaning

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 +49 (89) 9 96 41-0        Fax: +49 (89) 9 96 41-160

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Summary of Contents for IS-136 MS

Page 1: ...Doc Version 9907 121 A for IS 136 MS Doc Version 9611 110 A for IS 136 DB Acterna Muenchen GmbH Gutenbergstr 2 4 D 85737 Ismaning 49 89 9 96 41 0 Fax 49 89 9 96 41 160 Supplement to operating manual f...

Page 2: ......

Page 3: ...al traffic channel 10 20 Manual change of channel 10 21 Automatic change of channel 10 21 Change SAT 10 23 Change analog digital power level 10 24 No PWR figure 10 24 Change DVCC 10 25 Change time slo...

Page 4: ...without 2nd RF generator 10 44 Background Signaling 10 46 Application Notes 10 48 Requirements for operation 10 48 Control commands and transmission protocol 10 48 Pinning of RS 232 interface 10 49 Te...

Page 5: ...lso useful for a fast visual check is the graphic display of the burst and modulation spectrum of a mobile What is tested Call from mobile RF power Call from base station Frequency offset Handoff proc...

Page 6: ...CU 2 5S RF AF MCU 5 00 If the STATUS mask shows DIG MCU the D AMPS unit is installed 4031 If HOST MCU 3 82 STATUS mask shows OPT MCU instead of DIG MCU 4032 If HOST MCU 5 02 STATUS mask shows OPT MCU...

Page 7: ...ard Loading system program Depending on the capacity of the available memory cards the IS 136 MS TEST system program is supplied on one or more n cards 1 Insert the first memory card 1 of n in the slo...

Page 8: ...n slots on the test setup back panel with dummy panels Use the supplied BNC BNC cable 382 678 to connect socket Bu 103 of the IF unit back panel to socket Bu 103 of the D AMPS unit see appendix Withou...

Page 9: ...by the mobile will then be entered automatically in the MIN field the originally wrong MIN triggers the message Wrong Ident Then repeat the call setup Forward control channel FOCC or Digital control c...

Page 10: ...breaks off after approx 5 s With this scroll field you choose the power level 0 to begin with scroll variables 0 to 7 Not shown in the figure Only available in the IS 136 DB test program at the bottom...

Page 11: ...ic channel The permissible figure depends on whether the mobile is fitted with a full rate or a half rate speech codec full rate 1 2 3 half rate 1 2 3 4 5 6 With this scroll field you choose the speec...

Page 12: ...esults in the righthand half of the screen Fig 10 7 The entry sectors analog digital are assigned the appropriate display sectors Depending on what type of traffic channel the connection was directed...

Page 13: ...sible on AMPS E AMPS mobiles Test Results A D RESULtx MIN Explanation of result RESULty SN Explanation of result RESULtz No Explanation of result A MPOWER PWR Explanation of result D RESULtu ERR Expla...

Page 14: ...IS 136 MS How to Read the Test Results Table 10 14...

Page 15: ...IS 136 Signaling Tests 10 How to Read the Test Results Table IS 136 MS 10 15...

Page 16: ...to the registration call halt the test with STOP enter a new valid home system number and start the test again Test Results A D RESULt1 MIN IMSI Received mobile station identification MIN or IMSI RESU...

Page 17: ...mal code RESULt5 No First 20 digits of the called number of 32 digits RESULt5 No Last 12 digits of the called number of 32 digits RESULt6 SCM Station class mark 1st character power class 1 high 2 medi...

Page 18: ...Fig 10 9 Call from mobile analog chan nel Fig 10 10 Call from mobile digital chan nel IS 136 MS Call from Mobile 10 18...

Page 19: ...mobile hexadecimal code 2nd line Serial number of mobile decimal code RESULt5 SCM Station class mark 1st character power class 1 high 2 medium 3 low 4 very low 2nd character transmit mode blank conti...

Page 20: ...traffic channel WHY Test whether the mobile correctly changes to another analog digital TC All variants are permissible eg also changing from an analog to a digital TC and from 800 MHz DTC to 1900 MH...

Page 21: ...in new analog TC MPOWER PWR Mobile output power in new analog TC see appendix D RESULt7 ERR Frequency error of mobile transmitter in new digital TC RESULt8 PWR Mobile output power in new digital TC se...

Page 22: ...of test A MTXOFFset ERR Frequency error of mobile transmitter in current analog TC If measurement exceeds limits in any channel MPOWER PWR Mobile output power in current analog TC see appendix D RESUL...

Page 23: ...le could send back new SAT correctly connection does not break off basic test mask continues to show results in analog sector Exception if NO SAT is selected connection must break off after approx 5 s...

Page 24: ...ted in SCM message D RESULt8 PWR Mobile output power in current digital TC see appendix Note maximum possible power level depends on mobile type reported in SCM message Fig 10 13 Power level handoff a...

Page 25: ...ile must be in a digital traffic channel HOW Enter a new figure in the DVCC field Confirm it with ENTER Press EXECUTE in the basic test mask In this way signaling adopts the new DVCC Test Results D RE...

Page 26: ...of speech codec in the mobile see General Test Pre parations Press EXECUTE in the basic test mask In this way signaling adopts the new time slot Test Results D Mobile could switch to new slot connect...

Page 27: ...eneral test preparations The channel type must be To digital TC Initiate a call with MOBILE or CELL the mobile must be in a digital traffic channel HOW Enter a new figure in the TIME ALIGNMENT field C...

Page 28: ...nsfer rate Note a mobile with a full rate speech codec cannot handle half rate Press EXECUTE in the basic test mask In this way signaling adopts the new transfer rate Test Results D Mobile could switc...

Page 29: ...combination Examples 1 The mobile is in a digital TC Change DTC DVCC SLOT POWER LEVEL TIME ALIGNMENT and Rate this is the most complex handoff in the digital mode of a mobile 2 The mobile is in an an...

Page 30: ...H in the basic test mask This produces the prompt Dial number then Send in the status line The test setup is now waiting for the telegram that contains the call number for the third party Enter the ca...

Page 31: ...ust be in a digital traffic channel HOW Press SP LOOP in the basic test mask Speak into the microphone of the handset The test set sends the digital speech signal transmitted by the mobile with a dela...

Page 32: ...IS 136 MS Speech Loopback 10 32...

Page 33: ...IS 136 TX Tests 10 Speech Loopback IS 136 MS 10 33...

Page 34: ...in test mode of the mobile Constellation display HOW Press CONST in the basic test mask Select DISPLAY MODE in the scroll field Fig 10 20 D dots L lines S statistics see box on page 10 37 Press RUN T...

Page 35: ...origin offset plus normalization of power Residual error includes both magnitude and phase error at maximum effect points Average residual error of mobile transmit signal must not be greater than 12...

Page 36: ...tion display RESULt8 Origin offs Same result as in constellation display RESULt9 RMS vector error Same result as in constellation display RESULtA Err 1st 10 Symbols Average residual vector error RESUL...

Page 37: ...he screen is extinguished and the next 156 dots are displayed L lines consecutive points of maximum effect are connected From this display it is possible to deduce the symbol contents data stream Addi...

Page 38: ...section 2 1 3 3 Start the test with CONTIN continuous measurement halted by STOP or with 1 SHOT one measurement frozen on display Note Due to a single autoranging at the beginning of the measurement...

Page 39: ...RESULt6 Averag Power Average RF output power of mobile during burst shown missing measurement value See box No PWR figure on page 10 24 RESULt7 Time Alignment Time alignment assigned by test set idea...

Page 40: ...lculation 824 010 f 825 000 N f 825 000 0 03 1023 825 030 f 848 970 N f 825 000 0 03 Start the test with RUN The display shows the test results End the test with STOP RETURN takes you back to the burs...

Page 41: ...IS 136 RX Tests 10 Adjacent Channel Power Measurement ACPM IS 136 MS 10 41...

Page 42: ...st range of interest approx 105 to 120 dBm End the test with STOP and repeat it if necessary with different transmission parameters RETURN takes you back to the basic test mask Test Results D To measu...

Page 43: ...RF band 800 MHz or 1900 MHz in the field 2nd DTC Couple the second RF generator in addition to the an tenna terminal of the mobile and set the frequency of the selected adjacent channel Set the RF lev...

Page 44: ...obile in current DTC Display may show 0 to 31 see Table A RESULt8 2nd RSSI At very high RF signal level noise spectrum of test set provokes measured figures in adjacent chan nel Table A Table B Shown...

Page 45: ...Analog Tests 10 Mobile Assisted Handoff MAHO IS 136 MS 10 45...

Page 46: ...ct that the signaling works in the background can be seen from the lighting of the green LED of modulation generator GEN B AUX DATA takes you back to the system program Striking the B SAT key or calli...

Page 47: ...RS 232 interface 10 Background Signaling IS 136 MS 10 47...

Page 48: ...32 interface of the D AMPS module will not work properly if the IS 136 MS Test system program is called up at the same time Control commands and transmission protocol The RS 232 interface of the D AMP...

Page 49: ...Pinning of RS 232 interface Bu 105 Pin 1 DCD Pin 5 GND Pin 2 RXD Pin 6 nc Pin 3 TXD Pin 7 RTS Pin 4 DTR Pin 8 CTS Pin 9 nc 10 Application Notes IS 136 MS 10 49...

Page 50: ...IS 136 MS Application Notes 10 50...

Page 51: ...Appendix 10 Application Notes IS 136 MS 10 51...

Page 52: ...99 f 0 03 N 870 000 990 N 1023 f 0 03 N 1023 870 000 Channel spacing 30 kHz Duplex offset 45 MHz Signaling rate 10 kbit s Deviation Signaling 8 kHz Speech 2 9 kHz POWER LEVEL Class 1 Class 2 Class 3 C...

Page 53: ...nges With each phase step you can transmit two bits special IS 136 terms 2 bits 1 symbol 1 bit 1 unit In a vector diagram of the modula tion signal the ideal end positions of the eight possible vector...

Page 54: ...is field contains a fixed bit sequence which is needed to demodulate and decode the burst exactly In a TDMA system multipath propagation disturbs the reception of signals as they arrive at different p...

Page 55: ...re not connected as marked here no call setup is possible between mobile and test set All other sockets of D AMPS unit are irrelevant for testing IS 136 mobiles Slot Unit 1 AF DETECTOR 2 MOD GENERATOR...

Page 56: ...only if the screen shows the IS 136 basic mask the constellation display or the numeric display SPECIR value value Number of measurements any figure be tween 01 and FF is permissible eg SPECIR0A for 1...

Page 57: ...100 A none First edition 1 00 9608 100 B some C Bug fixes only design bugs in manual 1 00 9610 100 C 5 10 NF Description of IS 136 DB added 1 10 9611 110 A none C Internal optimation F BCCH Maho powe...

Page 58: ...IS 136 MS Set Number of Measurements 10 58...

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