1. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Testing Microwave Radio Performance or Turn-up testing is required when –Put on the air for the first time –Periodic maintenance is performed –Establishing base line measurements –Future troubleshooting tool

2. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Testing DTS provides various custom reports to the customer in a Performance Test. For example....

3. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Certification Site Information -Date -Tested By -To/From -Radio Type -Radio Configuration -Number of T1’s Installed -Data Rate

4. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Certification Rack Specifications –DSX Slots –Radio Location –Power Supply Readings –Battery Testing –Dehydrator Pressure Test

5. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Certification Radio Information –Modulation Type –Transmit Frequency –Receive Frequency –PA Equipped –ATPC

6. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Certification Alarm Checks –Lamp Tests –Rack Alarm –TX Alarm –TX On-line –RX Alarm –RX On-line –I/O Alarm –I/O Online

7. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Certification Frequency & Power Measurements –Transmitter(s) Specified Measured –Receiver(s) Specified Measured

8. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Certification Measured RSL –TOR Measurement –Insertion Loss –Calculated RSL RSL Curve Test Results –Signal Gen. Level –Measured DC Volts (RSL)

9. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Certification Antenna System –Antenna Type –Polarity –Space Diversity –Waveguide Length –Antenna Center Line –Feed Orientation –Waveguide Return Loss

10. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Antenna Sweep East

11. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Antenna Sweep West

12. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Certification Digital Traffic Tests –BER 10 -6 Threshold Level –24 hour BER Test Results

13. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved BERT Set-up Report TEST SET CONTROLS PRINT MODE: T1-ESF CHAN FOR: FULL T1 SOU 1: QRSS SOU 2: N/A DIS HOL: OFF CODE: B8ZS TIMED/CONT: TIMED L1 CHAN: L2 CHAN: -- DROP: LINE 2 INSERT: LINE 1 L1 REC INP: TERM L2 REC INP: TERM PRI EVE: ERR SEC LOOP UP: OFF LOOP DOWN: OFF SIG A BIT: OFF SIG B BIT: OFF SIG C BIT: OFF SIG D BIT: OFF ERR INS LOG: OFF ERR INS BPV: OFF ERR INS FRA: OFF ERR INS YEL: OFF

14. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved BERT Test Report RESULTS AT BEGINNING OF TEST - MANUAL PRINT BIT ER2: 0 ASY ES2: 0 BER2: 0. E-07 EFS2: 25 % EFS2: 100.00% SYN ES2: 0 OOS SE2: 0 PAT SL2: 0 SES2: 0 % SES2: 0.00% DEG MN2: 0 %DG MN2: 0.00% UNAV S2: 0 %AVLBL2: 100.00% CSES2: 0 F F ES2: UNAVAIL F FSES2: UNAVAIL F BPVS2: UNAVAIL F SLPS2: UNAVAIL PRM TM2: UNAVAIL F CRCE2: UNAVAIL SI CRC2: UNAVAIL LO CRC2: UNAVAIL MD CRC2: UNAVAIL MH CRC2: UNAVAIL HI CRC2: UNAVAIL SV CRC2: UNAVAIL PY SRC2: UNAVAIL BPVS2: 0 BPV S2: 0 BPV RT2: 0. E-07 FRM ES2: 0 FRM ER2: 0 FR ERT2: 0. E-04 CRC ER2: 0 CRC ES2: 0 FR LOS2: 0 FR L S2: 0 CRC SE2: 0 CRC RT2: 0. E-03 RCV FR2: 1544000 RCV LV2: 1.4dBdsx RCV LV2: UNAVAIL RCV LV2: 7.08 V SPX CR2: 0 mA TM SLI2: UNAVAIL BIT SLI2: UNAVAIL SLI SC2: UNAVAIL DELAY2: 662.580 uS 0 TST LEN: 24:00:00 ELA TM2: 00:00:25 TST END: 23:59:35

15. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Final BERT Report TEST COMPLETE MANUAL PRINT 15:21:29 APR 05 02 BIT ER2: 0 ASY ES2: 0 BER2: 0. E-11 EFS2: 86400 % EFS2: 100.00% SYN ES2: 0 OOS SE2: 0 PAT SL2: 0 SES2: 0 % SES2: 0.00% DEG MN2: 0 %DG MN2: 0.00% UNAV S2: 0 %AVLBL2: 100.00% CSES2: 0 F F ES2: UNAVAIL F FSES2: UNAVAIL F BPVS2: UNAVAIL F SLPS2: UNAVAIL PRM TM2: UNAVAIL F CRCE2: UNAVAIL SI CRC2: UNAVAIL LO CRC2: UNAVAIL MD CRC2: UNAVAIL MH CRC2: UNAVAIL HI CRC2: UNAVAIL SV CRC2: UNAVAIL PY SRC2: UNAVAIL BPVS2: 0 BPV S2: 0 BPV RT2: 0. E-11 FRM ES2: 0 FRM ER2: 0 FR ERT2: 0. E-08 CRC ER2: 0 CRC ES2: 0 FR LOS2: 0 FR L S2: 0 CRC SE2: 0 CRC RT2: 0. E-07 RCV FR2: 1544000 RCV LV2: 1.4dBdsx RCV LV2: UNAVAIL RCV LV2: 7.08 V SPX CR2: 0 mA TM SLI2: UNAVAIL BIT SLI2: UNAVAIL SLI SC2: UNAVAIL DELAY2: 662.580 uS 0 TST LEN: 24:00:00 ELA TM2: 24:00:00 TST END: 00:00:00

16. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Radio Provisioning Captures actual radio set-up Shows channels in service Shows alarm status upon acceptance

17. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Status and Alarms East

18. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Status and Alarms West

19. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Provisioning East

20. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Provisioning West

21. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved Performance Testing If you are experiencing operating difficulties on either analog or digital microwave systems, we invite you to give us a call.

22. DTS (800) 360-1425 Dover Telecommunication Services, Inc. © 2002 All rights reserved