TR62002-3@IEC:2008(E) - 6 - 5.2 Starting BERmeasurement 5.2.1 General The terminal is set to BER measurement mode by sending the following message: Above<CR>means CarriageReturn,<LF>meansLineFeed. Frequency and the signal bandwidth are given to the receiver. The receiver must discover automatically the rest of the modulation parameters using TPs information etc. An example for starting aBERmeasurement at a frequency of 586MHz is given below. TESTSTARTFRE:586000000BDW:8PRI:1 5.2.2 Start MFERmeasurement mode Theterminal is settoMFERmeasurementmodebysending thefollowing message LI ROW:MPE-FEC rows MBD:Burst duration[1Oms] IPV:IP-version[6/4] IPA:IP-address <CR><LF> automatically the rest of the modulation parameters using TPs information, etc. If the used test stream has valid Psi/Sl and if the terminal supports automatic detection based on PSi/SI information, only parameters frequency,priority and IP address are needed.There should be only one platform available in transport stream used for testing. Anexamplefor MFERmeasurement at afrequency of586MHz is givenbelow. TESTSTARTFRE:586000000BDW:8PRI:1PID:254ROW:2MBD:50IPV:6 IPA:FF15::0001:0300 An example with automatic detection based on Psi-Si information is givenbelow. TESTSTARTFRE:586000000BDW:8PRI:1IPV:6IPA:FF15::0001:0300 5.3 Stop measuring Themeasurement is stopped bythefollowing message: TEST STOP <CR><LF> 5.4 Restart counters The measurement counters (BER, FER etc.) are restarted, i.e. set to zero with the following message: TEST RESTART <CR><LF> TR 62002-3@IEC:2008(E) - 10 - 5.5 Signal quality reporting parameters and lock information.A parameter name is separated from parameter value with = ends to Carriage Return <CR>, Line Feed <LF> The parameters for the initial report headeraredescribed in Table 2. Table2-Initial report headerparameters (afterstart/restart) Mandatory ! Description Syntax Example Optional Relative time TIM=hh:mm:Ss TIM=08:34:05 Mandatory HUFENTERTAMUSENI HISLOEANINBANYASORLED Y BO SPPLY BURAU. Frequency FRE=[Hz] FRE=498000000 Mandatory FFT size FFT=8K, 4K, 2K FFT=8K Optional Guard GI=1/32, 1/16, 1/8, 1/4 GI=1/32 Optional interval LT Inner MOD=QPSK, 16QAM, 64QAM MOD=16QAM Optional modulation Coderate CR=1/2, 2/3, 3/4, 5/6, 7/8 CR=1/2 Optional BDW=5, 6.7,8 Bandwidth BDW=8 Optional Hierarchy PRI=0 (LP), 1(HP) PRI=1 Optional Alpha ALP=0, 1, 2, 4 ALP=0 Optional CH INT=0 (native), 1(in-depth) Interleaving INT=1 Optional Lock status LOC=abc (a= Service lock LOC=111 Mandatory: status i.e. receiver knows the Transport Stream delta_T for next burst, lock status is b=Transport Stream lock status, mandatory, TPS and c =TPS lock status. service lock status are optional Lock=1, No-lock=0, Not implemented = n Example of initial report header is given below. TIM=08:34:05FRE=498000000FFT=8KGI=1/32MOD=16QAMCR=1/2BDW=8PRI=1 ALP=0 LOC=111 In casereceiver is not able to acquire the signal at all, onlyLoC=ooo should beoutput. TR62002-3@IEC:2008(E) - 11 - Next the receiver should start outputting signal quality parameters according to the Table 3. Table3-Signalqualityparameters Mandatory / Description Syntax Note Example Mandatory Relative time TIM=hh:mm:ss TIM=08:34:05 Numberof received CNT=5 Mandatory. In Frame count XXX=LND frames from BER start/restart of the measurement measurement mode number of reports from start/restart Signal strength RSI=[dB(mW) Strengthis estimated RSI=-55 by the receiver C/N is estimated by CNR=25 Carrier to noise CNR=[dB] Optional ratio receiver SE BER is only valid if Bit error rate BER=X.xE-x BER=2.1E-4 Mandatory in (zero BER is PER=0.0E+0 BER mode, 0.0E+0) optional in MFER mode. In MFER mode the BER should be calculated from the selected burst only. TS packet error PER=x.xE-x PER=1.5E-3 Mandatory in rate (zero FER is BER mode, 0.0E+0) optional in MFER mode. In MFER mode the PER should be GASOR calculated from the selected burst only. FER=0,1 (1 FER=0 Mandatory in Frame error indicator flag means MFER mode before MPE- erroneous FEC, FER frame)