39
3. Sequence Testing
54 "CCIR TONE BURSTS" CCIR468-4 noise meter, ballistics test
"RANGE -40dB SET TL" 5kHz reference tone, should read -40dB
!5000,4000,-51.7,0,3000,-40 (adjust meter − if testing LA102 set Test Level)
"200ms ±1.2dB"!5000,200,-49.8,0,3000 200ms tone burst should read -40±1.2dB
"50ms ±1.3dB"!5000,50,-47.1,0,3000 50ms tone burst should read -40±1.3dB
"10ms ±1.2dB"!5000,10,-45.3,0,3000 10ms tone burst should read -40±1.2dB
"2ms ±1.5dB"!5000,2,-40.2,0,3000 2ms tone burst should read -40±1.5dB
55 "CCIR DUAL BURST" CCIR468-4 noise meter, ballistics test
"FIX-40 SET TL"!5000,6000,-51.7 5kHz reference tone, should read -40dB
"2/SEC -6.4±0.9dB"!5000,5,-51.7,0,495< 2 pulses per second, should read -40±0.9dB
56 "CCIR DUAL BURST" CCIR468-4 noise meter, ballistics test
"FIX-40 SET TL"!5000,6000,-51.7 5kHz reference tone, should read -40dB
"10/SEC -2.3±0.6dB"!5000,5,-51.7,0,95< 10 pulses per second, should read -42.3±0.6dB
59 "PPM TEST">19
Utility Sequences
61 "BETACAM CHANNEL ID" Audio channel identification for Betacam tapes:
"STEADY TONE ON R"!1000,3000,0,,0 Steady tone on R channel
"L MUTED FOR 0.25S":2!1000,250,0,,0:3<< Broken tone on L (muted for ¼s every 3¼s)
BBC Sequences
71-73 Not yet defined. 76 and 77 are included as temporary demonstrations!
74 "FM Radio Relay" FM Radio relay test, with 400Hz test level.
*2:3,1VRCJ:3,2VRCJ"DE-EMPHASIS ON,1=CONT"? Distortion is measured twice, and the LA101
"STEREO DISTORTION+8":19,1F:19,2F"PILOT will prompt before each distortion measurement,
OFF,1=CONT"?"MONO DISTORTION+8":3,1F:3,2F frst with ‘DE-EMPHASIS ON’ and then with
‘PILOT
75 "FM TEST""ONE CHAN MTD FOR THD"VRA:19,0GNY OFF’. Press
to continue.
British Telecom Sequences
81 "BT DIGITAL LINES" BT Digital lines/links test. Crosstalk at 0 & +10dB
*3 TOCC+10c0c+7ENZK+10,0,-30,-37,-47,-55 15kHz crosstalk at 0 & +7dB, response and level.
82 "BT EPS81 LINES/LINKS" Mono broadcast line, checked against EPS81
"MONO LINE<40km" :3,1 TOCENZ±7 tolerance in the LA102
83 "BT EPS84 LINES <40km" Stereo broadcast line, checked against EPS84
"STEREO LINE" TOCENZ±8 (for lines less than 40km)
84 "BT EPS84 LINES <320km" Stereo broadcast line, checked against EPS84
"STEREO LINE" TOCENZ±9 (for lines less than 320km)
85 "BT EPS98 LINES <320km" Stereo broadcast line, checked against EPS98
"STEREO LINE" TOCENZ±10
Telecom Australia Sequences
91 "REPEATING SWEEP""40 OHM 0dBm"%40,1TX<
92 "NOISE TEST""40 OHM 0dBm"%40,1TN
93 "THD +14dBm""40 OHM 0dBm"%40,1TF+20
94 "DIFF FREQ DIST""40 OHM 0dBm"%40,1Td
95 "LEVEL CRSTK + PHASE""40 OHM 0dBm"%40,1TC+12Z
96 "MONO LINES TEST""40 OHM 0dBm"%40,1:3,1TUF20Nd
97 "STEREO LINES TEST""40 OHM 0dBm"%40,1TUF20NdC+12Z
98 "MONO LINES O.33 EQVT""L CHANNEL ONLY":3,1T"COMPANDER TEST ON K"
U-12D+9!K800,1000,+6,,,-6,,,+6,,,+6,,,-6,,,+6N
99 "STEREO LINES (O.33)""COMPANDER TEST ON K"
*2 TU-12D+9B-12!K800,1000,+6,,,-6,,,+6,,,+6,,,-6,,,+6NZ
100 "LINDOS SELF TEST" As sequence 16
SAPO Sequences (South African Post Office)
101 "BTM/SEL SC"/-17%600,2"600OHM MATCHED"TrCEnz
102 "TV SOUND/BC"/0TOCENZ
103 "GTE SC"/-14%600,2"600OHM MATCHED"TrCEnz
104 "GTE SUB/BB"/-19%150,2"150OHM MATCHED"TOCENz
105 "20-20kHz FAST SWEEP"TX<
106 "LINDOS SELF TEST" As sequence 16
107 "TEST+PATCH SC"%600,2"600OHM MATCHED"TrCENz
108 "NSTD CHANNEL"/-10%600,2"600OHM MATCHED"TrCEnz
109 "PPM TEST" As sequence 19
110 "5S SWEEP (REPEAT)"TU< As sequence 15
in LA100 V6.7 Software
To Next Page
Loading...