ETL600 1KHW001489-EN ABB Switzerland Ltd
2640
300
2400
2000
2120
2200
2320
2520
50 Bd/120Hz
(R.35)
Not available in
ETL600 Rel. 1
100 Bd/240 Hz
(R.37)
200 Bd/480 Hz
(R.38a)
200 Bd/360 Hz
(R.38b)
600 Bd/960 Hz
Speech 2400 Hz
Speech 2200 Hz
Speech 2000 Hz
ETL600: Usable bandwidth of a 3.2kHz AF channel
Hz
2440
2240
NSD600 own
guard options
NSD600
guard
Standard
Pilot
3120 Hz
Standard
Guard
3120 Hz
Speech 2600 Hz
Speech 2800 Hz
3350
312028802640240021601920168014401200960720480
540 900 1260 1620 1980 2340 2700 3060
600 1080 1560 2040 2520 3000
1080 2040
2400 bps/840Hz
4800 bps/1680Hz
900 1740 2580
1200
1700
1200 Bd V.23
300
2400
2000
2120
2200
2320
2520
Hz
3350
ETL600 Pilot
540
660
780
900
1020
1140
1260
1380
1500
1620
1740
1860
1980
2100
2220
2340
2460
2580
2700
2820
2940
3060
3180
420
3120
30003000
28802880
Fig. 3-7 Use of ETL bandwidth for a 3.2 kHz AF channel
Structure and Function November 2005 3-9